GSA Federal Acquisition Service
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For general questions, contact:
FAS National Customer Service Ctr
Phone: 1-800-488-3111
E-mail: ncsccustomer.service@gsa.gov

MAS Multiple Award Schedule
Professional Services - Technical and Engineering Services (non-IT)
Category Description
541715 Engineering Research and Development and Strategic Planning Service include conducting research and experimental development (except nanotechnology and biotechnology research and experimental development) in the physical, engineering and life sciences such as; such as agriculture, electronics, environmental, biology, botany, computers, chemistry, food, fisheries, forests, geology, health, mathematics, medicine, oceanography, pharmacy, physics, veterinary and other allied subjects.

Typical tasks include, but are not limited to, analysis of mission, program goals and objectives, program evaluations, analysis of program effectiveness, requirements analysis, organizational performance assessment, special studies and analysis, training, and consulting; requirements analysis, cost/cost performance trade-off analysis,feasibility analysis, developing and completing fire safety evaluation worksheets as they relate to professional engineering services; operation and maintenance, evaluation of inspection, testing, and maintenance program for fire protection and life safety systems, program/project management, technology transfer/insertion, training and consulting.

NOTE: Services under this NAICs can not include architect-engineer services as defined in the Brooks Act and FAR Part 2 or construction services as defined in the Federal Acquisition Regulation Part 36 and Part 2.
749 contractors

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Contractor       Contract # Phone City, State Socio-
Economic		 Contractor T&Cs
/Pricelist		 View Catalog
3U TECHNOLOGIES, LLC GS-10F-119AA 301-452-3152 CONROE ,TX s
4M RESEARCH, INC. 47QRAA19D0094 2563194646 HUNTSVILLE ,AL s/w/wo
5-D SYSTEMS, INC.       GS-23F-0322N 512-238-9840 X18 ROUND ROCK ,TX s
A-P-T RESEARCH, INC.       47QRAA21D0040 2563274015 HUNTSVILLE ,AL s
A2 SYSTEMS ENGINEERING, INC. GS-10F-0316X 31046966606 EL SEGUNDO ,CA s/v
AASA INC GS-35F-171GA 703-444-6170 STERLING ,VA s/d
ABACUS TECHNOLOGY CORPORATION GS-00F-191CA 301-215-7593 CHEVY CHASE ,MD o
ABACUS TECHNOLOGY CORPORATION GS-35F-720GA 301-215-7593 CHEVY CHASE ,MD o
ABSG CONSULTING INC. GS-00F-026CA 703-351-3715 SPRING ,TX o
ABT, INC. GS-23F-0109S 256-679-7950 HUNTSVILLE ,AL s/dv
ACCURATE MACHINE & TOOL CORPORATION 47QRAA20D0013 (256)461-8063 MADISON ,AL s/w/wo  
ACQCENTRIC, INC. 47QRAA22D0026 256-665-7813 HUNTSVILLE ,AL s/w/wo/ew/dv/d/8a
ACQUIRED DATA SOLUTIONS, INC. GS-00F-228GA 301-984-4193 ROCKVILLE ,MD s
ACQUISITION SYSTEMS ASSOCIATES, INC. 47QRAA19D001V (703)966-3786 GREAT FALLS ,VA s  
ACQUISITION, RESEARCH AND LOGISTICS INC GS-10F-0415X 301-749-1410 LANHAM ,MD s/dv/d
ACTUALIZED BUSINESS SOLUTIONS, INC. 47QRAA20D007J 800-905-6724 CALIFORNIA ,MD s/dv
ADVANCED CORE CONCEPTS, LLC GS-00F-0005U (937) 426-2808 TAMPA ,FL o
ADVANCED MANAGEMENT STRATEGIES GROUP, INC. GS-00F-024CA 5713910435 DUMFRIES ,VA s/dv
ADVANCED PROJECT CONSULTING, LLC GS-00F-122GA 478-420-0272 WARNER ROBINS ,GA s/w/wo/ew/dv/d/8a
AECOM TECHNICAL SERVICES, INC. GS-00F-188CA 512-419-5738 LOS ANGELES ,CA o
AERIAL PRODUCTIONS INTERNATIONAL, INC. GS-10F-178AA 520-820-1024 TUCSON ,AZ s
AERO THERMO TECHNOLOGY, INC. 47QRAA18D00BA 2569221141 HUNTSVILLE ,AL s/w/wo
AEROSPACE BUSINESS DEVELOPMENT ASSOCIATES, INC. GS-00F-312DA 9373181640 BEAVERCREEK ,OH s/v
AES GROUP, INC. GS-23F-0250N (303)841-3922 PARKER ,CO s/dv  
AFFILIATED ENGINEERS METRO DC, INC.       47QRAA18D00GE 301-509-6730 ROCKVILLE ,MD o
AFG GROUP INC. GS-23F-0371P 703-342-9939 HERNDON ,VA s/w/wo
AFG GROUP INC. 47QRAA20D009J 703-435-0029 HERNDON ,VA s/w/wo
AI SIGNAL RESEARCH, INC. GS-10F-0254T 256-551-0008 X39 HUNTSVILLE ,AL s
AIR LOGISTICS AND ENGINEERING CONSULTANTS, LLC       47QRAA18D0092 4789514404 WARNER ROBINS ,GA s
AKIMEKA, LLC GS-00F-147CA 703-329-4724 COLUMBIA ,MD o
ALABAMA A&M UNIVERSITY RESEARCH, INNOVATION, SCIENCE AND ENGINEERING FOUNDATION, INC., THE 47QRAA19D002C 2563724940 NORMAL ,AL o
ALEX - ALTERNATIVE EXPERTS, LLC 47QRAA18D003Y 703-547-1665 MARSHALL ,VA s/w/wo
ALION SCIENCE AND TECHNOLOGY CORPORATION GS-00F-064CA (757) 802-0293 MC LEAN ,VA o
ALLEGHENY SCIENCE & TECHNOLOGY CORPORATION GS-10F-053AA 304-319-0044 BRIDGEPORT ,WV s/w/wo
ALLIANCE POINTE, LLC 47QRAA18D00GY 7038595254 URBANNA ,VA s/w/wo/h
ALLIED MISSION GROUP LLC 47QRAA18D00G8 571-344-0888 LEESBURG ,VA s/d/h
ALLUVIONIC INC. 47QRAA20D003F 5012594288 MELBOURNE ,FL s/w/wo/ew/d/8a
ALPHA CONSTRUCTION AND ENGINEERING CORPORATION GS-23F-0209N 703-450-0800 DULLES ,VA o
ALPHASIX CORPORATION GS-35F-307AA 703-579-6479 STERLING ,VA s
ALPHASIX CORPORATION 47QRAA19D00B6 703-579-6479 STERLING ,VA o
ALTAMIRA TECHNOLOGIES CORPORATION 47QRAA19D0027 703-813-2100 MC LEAN ,VA s
ALTUS, LLC GS-10F-0155V (410) 457-8115 DARLINGTON ,MD s
AM PIERCE & ASSOCIATES, INC. 47QRAA22D006D 240-718-3814 CALIFORNIA ,MD s/w/wo
AMEE BAY, LLC GS-10F-0255V 843-414-4141 ANCHORAGE ,AK s/d/8a
AMENTUM SERVICES, INC. GS-00F-046CA 301-944-3132 GERMANTOWN ,MD o
AMENTUM TECHNICAL SERVICES LLC 47QRAA20D006B 803-530-1330 AIKEN ,SC o
AMERICAN SYSTEMS CORPORATION GS-35F-500CA 7039685068 CHANTILLY ,VA o
ANALYGENCE, INC. 47QRAA20D005D 301-830-6092 COLUMBIA ,MD s/dv/d/8a
ANALYTIC SERVICES INC. GS-00F-095CA 7034161304 FALLS CHURCH ,VA o
ANALYTICAL MECHANICS ASSOCIATES, INC. 47QRAA21D002Q 256.830.4811 X 112 HAMPTON ,VA s
ANALYTICAL SERVICES & MATERIALS, INC. 47QRAA21D001S 757-224-6751 HAMPTON ,VA s/w/wo
ANALYTICAL SERVICES, INC.       GS-00F-020DA 571-418-9792 HUNTSVILLE ,AL s/d
ANDROMEDA SYSTEMS INCORPORATED GS-10F-0300Y 904-402-8652 VIRGINIA BEACH ,VA o
ANTARES GROUP INCORPORATED       47QRAA19D008S 301-731-1900 X 220 EDGEWATER ,MD s
APOGEE ENGINEERING, LLC GS-10F-0242W 5406568037 COLORADO SPRINGS ,CO s/d/8a
APOGEE SOLUTIONS, INC. 47QRAA18D009D 757-549-2645 CHESAPEAKE ,VA s/w/wo
APPLIED ENGINEERING SERVICES, INC. 47QTCA23D0051 (661)349-6769 RIDGWAY ,CO s    
APPLIED INSIGHT, LLC GS-00F-145GA 703-215-8211 RESTON ,VA o
APPLIED RESEARCH SOLUTIONS, INC GS-00F-135GA 937-912-6100 BEAVERCREEK ,OH s
APPLIED TECHNOLOGY, INC. 47QRAA19D00CC 540-663-0050 KING GEORGE ,VA s
APPLIED THERMAL COATINGS INC 47QRAA23D001J 423-267-0972 CHATTANOOGA ,TN s/d
APSI CONSTRUCTION MANAGEMENT GS-23F-0054S 949-679-0202 IRVINE ,CA s
APTIVE RESOURCES LLC GS-07F-281BA 571-210-4500 ALEXANDRIA ,VA s/w/wo/ew/dv/d
ARBOR RESEARCH COLLABORATIVE FOR HEALTH       47QRAA22D008J 7346654108 ANN ARBOR ,MI o
ARCHARITHMS, INC. GS-00F-175DA 256-763-8781 HUNTSVILLE ,AL s/h
ARES CORPORATION 47QRAA21D003Z 7037149960 MCLEAN ,VA o
ARGO SYSTEMS, LLC GS-10F-0335T 410-768-2444 HANOVER ,MD o
ARION SYSTEMS, INC. 47QRAA19D00DS 703-815-1130 X1112 CHANTILLY ,VA s
ART ANDERSON ASSOCIATES, INC.       GS-10F-0159U 3604795600 BREMERTON ,WA s/v
ARTISAN TECHNOLOGIES, INC. 47QRAA21D0091 937-510-0908 BEAVERCREEK ,OH s/d
ASCA, INC.       GS-23F-0049R 3103166249 EXT 105 REDONDO BEACH ,CA s
ASCENSION GLOBAL SOLUTIONS, LLC 47QRAA19D009Y 781-254-9020 NORTH BILLERICA ,MA s
ASR INTERNATIONAL CORP. GS-00F-283CA 6312311086 HAUPPAUGE ,NY s/d
ASU RESEARCH ENTERPRISE 47QRAA18D0082 4808840402 SCOTTSDALE ,AZ o
ATI, INC. 47QRAA18D00E9 410-992-3424 COLUMBIA ,MD s/d/8a
ATKINS NORTH AMERICA, INC. 47QRAA21D002Z 813 281 4430 TAMPA ,FL o
ATKINSON AERONAUTICS & TECHNOLOGY, INC. 47QRAA18D009W 540-760-7499 FREDERICKSBURG ,VA s/dv
AUGUR CONSULTING INC       47QRAA19D003S 7038285295 ARLINGTON ,VA s/dv
AVALON BUSINESS ENGINEERING SERVICES, LLC 47QRAA20D003E (801) 447-1623 CLEARFIELD ,UT s/w/wo/ew/dv/d/8a
AVANTUS FEDERAL LLC GS-00F-151CA 571-551-2726 MCLEAN ,VA o
AVIAN, LLC 47QRAA18D006L 301-866-2070 EXT. #1 LEXINGTON PARK ,MD s/dv
AVIATION & MISSILE SOLUTIONS, LLC GS-23F-0017P 256-713-5903 HUNTSVILLE ,AL o
AVION SOLUTIONS, INC. 47QRAA22D0091 256-721-7006 HUNTSVILLE ,AL o
AVNIK DEFENSE SOLUTIONS INC GS-10F-219AA 256-513-5295 HUNTSVILLE ,AL s/w/wo
AXIENT LLC GS-23F-0320N 256-652-7025 HUNTSVILLE ,AL o
AXIENT LLC       47QRAA20D0092 2567990669 ARLINGTON ,VA o
AXLE INFORMATICS, LLC GS-35F-023GA 703-269-7618 NORTH BETHESDA ,MD s/w/wo/d
AZIMUTH CORPORATION 47QRAA23D001M 937-256-8571 BEAVERCREEK ,OH s/w/wo
BACIK GROUP LLC GS-00F-017CA 205-358-9851 PELHAM ,AL s/dv
BAE SYSTEMS TECHNOLOGY SOLUTIONS & SERVICES INC. GS-00F-240CA 301-738-5979 ROCKVILLE ,MD o
BANDWIDTH SOLUTIONS INC GS-23F-0295P (703)966-4478 MC LEAN ,VA s/w
BANNER DEFENSE, INC. 47QRAA19D004Q 256-970-8795 MADISON ,AL s/dv
BARBARICUM LLC GS-00F-206CA (202) 393-0873 WASHINGTON ,DC o
BASTION TECHNOLOGIES, INC. 47QRAA19D007C 281-283-9359 HOUSTON ,TX s/d
BATTELLE MEMORIAL INSTITUTE GS-00F-084CA 614-424-3522 COLUMBUS ,OH o
BAYFIRST SOLUTIONS LLC GS-10F-0356Y 202-541-1010 WASHINGTON ,DC o
BCS, LLC GS-00F-269CA 410-997-7778 WASHINGTON ,DC s
BEACON SYSTEMS, INC 47QRAA18D0091 954-426-1171 CORAL SPRINGS ,FL s/d
BENNETT AEROSPACE, INC.       47QRAA20D003H 919-636-5185 RALEIGH ,NC s/w/wo/ew/v/d/8a
BFA SYSTEMS, INC. GS-10F-0303T 256-704-3201 HUNTSVILLE ,AL s/dv
BIGELOW FAMILY HOLDINGS LLC 47QRAA18D00C5 586-306-8962 STERLING HEIGHTS ,MI s/w/wo/ew/dv/d/8a
BINERA, INC. GS-00F-048CA 757-867-8538 YORKTOWN ,VA s/w/wo/ew
BLACK DIAMOND CONSULTING CORPORATION GS-00F-292GA 703-599-6266 ASHBURN ,VA s/d
BLUE SKY INNOVATORS INC. 47QRAA20D001N 571-261-6385 FAIRFAX ,VA s
BLUEHALO LLC GS-10F-0019U 256-922-0802 HUNTSVILLE ,AL o
BLUEPATH LABS LLC 47QRAA19D0020 787-405-4501 WASHINGTON ,DC s/dv/d/8a
BLUEWATER FEDERAL SOLUTIONS, INC.       47QRAA20D001S 5712936554 CHANTILLY ,VA o
BMT DESIGNERS & PLANNERS, INC. GS-00F-337CA 703-920-7070 ARLINGTON ,VA o
BODE CELLMARK FORENSICS, INC. 47QSWA22D00A5 7036469875 LORTON ,VA o
BOEING AEROSPACE OPERATIONS, INC. 47QRAA20D0079 314-563-7049 SAINT LOUIS ,MO o
BOHANNAN-HUSTON, INC. GS-00F-0001Y 505-798-7925 ALBUQUERQUE ,NM o
BOOZ ALLEN HAMILTON INC.       GS-00F-008DA 7033774359 MCLEAN ,VA o
BOSTON CONSULTING GROUP, INC., THE 47QRAA21D00AU 301-771-2350 BOSTON ,MA o
BOSTON GOVERNMENT SERVICES, LLC GS-00F-013GA 202-262-8098 LENOIR CITY ,TN o
BOUNDS ASSOCIATES, LLC GS-10F-115CA 703-944-7066 ALEXANDRIA ,VA s/dv
BRADSHAW ENGINEERING AND TECHNICAL SERVICES, LLC GS-00F-183DA (256) 603-6471 HUNTSVILLE ,AL s
BRATSLAVSKY CONSULTING ENGINEERS, INC. GS-00F-071CA 9072807619 ANCHORAGE ,AK s
BRETT LLC 47QRAA21D00A6 757-325-7056 BRISTOW ,VA s/dv/d
BRILLIGENT SOLUTIONS, INC. 47QRAA18D0062 410-844-4526 FAIRBORN ,OH o
BRMI CONSULTING, INC. GS-35F-0490W 443-418-6674 SILVER SPRING ,MD o
BROWN TECHNOLOGIES INCORPORATED 47QRAA22D00BR 256-653-8546 HUNTSVILLE ,AL s/w/wo/ew/d/8a/h
BRYCE SPACE AND TECHNOLOGY, LLC 47QRAA18D00AN 703-647-2742 ALEXANDRIA ,VA s/w/wo
BTAS INC       47QRAA20D006J 937931-9431 BEAVERCREEK ,OH s/w/wo
BUILDING PEOPLE, LLC, THE GS-00F-237GA 703-669-2222 LEESBURG ,VA s/d/8a/h
BUILDING PEOPLE, LLC, THE GS-21F-056CA 703-669-2222 LEESBURG ,VA s/d/8a/h
BURNS ENGINEERING, INC. 47QRAA19D00AF 2156087846 PHILADELPHIA ,PA o
C2 ALASKA, LLC 47QSHA22D000D 210-236-3940 SAN ANTONIO ,TX s/d/8a
C2 TECHNOLOGIES INC 47QRAA18D006A 7034487946 VIENNA ,VA o
C2 TECHNOLOGY SOLUTIONS INC. GS-35F-272GA 410-794-6792 COLUMBIA ,MD s/d/8a
C4 PLANNING SOLUTIONS, LLC 47QRAA18D006V 706-592-3095 x104 BLYTHE ,GA o  
CACI INC FEDERAL GS-00F-268CA 703-679-3412 CHANTILLY ,VA o
CAMBRIDGE INTERNATIONAL SYSTEMS INC.       47QRAA18D005T 5713198919 ARLINGTON ,VA o
CANVAS, INC. GS-10F-0195Y (256) 489-2988 HUNTSVILLE ,AL s/w/wo
CAPABILITY ANALYSIS & MEASUREMENT ORGANIZATION LLC 47QRAA20D0048 937-458-3719; X412 BEAVERCREEK TOWNSHI ,OH s/dv
CARDNO GS, INC. GS-00F-196CA 9165487783 CHARLOTTESVILLE ,VA o
CATALYST SOLUTIONS, LLC       GS-00F-412GA (504)623-5458 STAFFORD ,VA s/dv  
CBRE HEERY, INC. 47QRAA19D00AP (404)946-2432 ATLANTA ,GA o
CDM FEDERAL PROGRAMS CORPORATION GS-00F-085CA 303-383-2300 FAIRFAX ,VA o
CE SOLUTIONS INC       47QRAA22D006Y 2566830938 HUNTSVILLE ,AL s
CENTURUM INFORMATION TECHNOLOGY, INC. 47QRAA19D00AM (703)415-9384 MARLTON ,NJ o  
CEPEDA SYSTEMS & SOFTWARE ANALYSIS, INC.       GS-00F-224GA (256) 428-8186 HUNTSVILLE ,AL s/w/wo/d/h
CERVELLO GLOBAL CORPORATION 47QRAA18D003E (727) 303-3001 SAFETY HARBOR ,FL s/dv/d
CFD RESEARCH CORPORATION GS-10F-0184Y 256-361-0801 HUNTSVILLE ,AL s
CGH TECHNOLOGIES, INC. 47QRAA18D00DD 202-580-7401 WASHINGTON ,DC s/w/wo
CGI FEDERAL INC. GS-00F-302CA 703-227-4652 FAIRFAX ,VA o
CGI FEDERAL INC. GS-35F-281DA 7032274652 FAIRFAX ,VA o
CHENEGA FACILITIES MANAGEMENT, LLC 47QSHA20D0033 2566650610 SAN ANTONIO ,TX o
CHENEGA PROFESSIONAL & TECHNICAL SERVICES, LLC       47QTCA20D002Y 703-447-1370 CHESAPEAKE ,VA s/d/8a
CHENEGA RELIABLE SERVICES, LLC 47QSHA21D001A 210-236-3934 SAN ANTONIO ,TX s/d/8a
CHENEGA TECHNICAL INNOVATIONS, LLC 47QRAA19D0096 703-493-9880 CHANTILLY ,VA o
CHEROKEE NATION RED WING, L.L.C. GS-00F-007DA 918-430-3407 TULSA ,OK s/d/h
CHEROKEE NATION TECHNOLOGY SOLUTIONS, L.L.C. GS-00F-330GA 918-430-3407 CATOOSA ,OK o
CHITRA PRODUCTIONS GS-00F-271CA 7574950234 VIRGINIA BEACH ,VA s/w/wo/ew/d/h
CIMARRON SOFTWARE SERVICES, INC.       47QRAA19D004Y (281)226-5100 HOUSTON ,TX s/w/wo  
CINTEL, INC. GS-00F-268GA 2564311237 HUNTSVILLE ,AL s
CITRINE LLC 47QRAA19D008Z 303-330-5385 DENVER ,CO s/h
CLOUDBURST CONSULTING GROUP, INC. GS-10F-0218U 301-412-9229 HYATTSVILLE ,MD s/w/wo/d/8a
CMT SERVICES, INC. 47QRAA19D008U 2028098785 HYATTSVILLE ,MD s/w/wo/h
CNA CORPORATION, THE 47QRAA18D003X 703-203-8680 ARLINGTON ,VA o
COASPIRE, LLC 47QRAA20D0037 (703)915-0582 FAIRFAX ,VA s/dv  
COGENT SECURITY CONSULTING LLC GS-00F-301DA (855) 226-4368 ALEXANDRIA ,VA s/d
COLSA CORPORATION GS-00F-293CA 2569645276 HUNTSVILLE ,AL o
COLUMBIA GROUP, INC, THE GS-00F-201CA 2026088415 WASHINGTON ,DC s
COMPREHENSIVE APPROACH, LLC 47QRAA22D00AK 8643109404 FAIRFAX ,VA s/dv/d/8a/h
COMPUTERCRAFT CORPORATION GS-00F-262GA 5712663362 WASHINGTON ,DC s/w/wo
CONCURRENT TECHNOLOGIES CORPORATION 47QRAA21D0021 814-269-2871 JOHNSTOWN ,PA o
CONSOLIDATED SAFETY SERVICES INCORPORATED GS-00F-217CA (703) 877-3352 FAIRFAX ,VA o
COOPER ZIETZ ENGINEERS, INC GS-10F-0337T 5036529090 PORTLAND ,OR s/v/d/h
CORNERSTONE CONCILIUM, INC GS-00F-0007S (415)705-7800 SAN FRANCISCO ,CA s/d/h
CORNFORTH CONSULTANTS, INC. 47QRAA20D007K 503-452-1100 PORTLAND ,OR s
CORPORATE ALLOCATION SVCS, INC. GS-10F-0311U 303-920-7264 DENVER ,CO s/w/d/8a
CORTINA SOLUTIONS, LLC GS-00F-205DA 256-319-2024 HUNTSVILLE ,AL s/w/wo/ew/d/8a/h
CRAFT DESIGNS, INC.       47QRAA18D00A3 2566500536 HUNTSVILLE ,AL s/w/wo
CRAIG TECHNICAL CONSULTING, INC. GS-00F-040GA 321-613-5620 MERRITT ISLAND ,FL s/w/wo/ew/dv/d
CREDENCE MANAGEMENT SOLUTIONS LIMITED LIABILITY COMPANY GS-10F-0432Y STAPLEFORD VIENNA ,VA o
CROSSFLOW TECHNOLOGIES, INC 47QRAA18D008D 2564253680 ALBERTVILLE ,AL s
CROWN CONSULTING, INC. GS-00F-038DA 703-650-0663 ARLINGTON ,VA o
CRUZ ASSOCIATES INC. GS-10F-0379U 757-833-7538 YORKTOWN ,VA s
CULMEN INTERNATIONAL, LLC 47QRAA18D006D 703-224-7000 ALEXANDRIA ,VA o
CZERO, INC. GS-10F-0081X 719-331-9662 FORT COLLINS ,CO s
D P ASSOCIATES, INC. GS-10F-0361U 256-837-8300 HUNTSVILLE ,AL s/w/wo/ew/d
D&G SUPPORT SERVICES, LLC GS-00F-131DA 7034033463 WOODBRIDGE ,VA s/w/wo/ew/dv/d/8a
DAMA CONSULTANTS, INC 47QRAA19D0037 773-870-1595 CHICAGO ,IL s/d/8a/h
DARKBLADE SYSTEMS, LLC GS-00F-012GA (703)409-9439 WINCHESTER ,VA s/dv  
DAVID CLARK COMPANY INCORPORATED       GS-10F-0467Y 508-751-5841 WORCESTER ,MA s
DAVIDSON TECHNOLOGIES, INC. 47QRAA21D008A (256)327-3169 HUNTSVILLE ,AL o    
DAVIS STRATEGIC INNOVATIONS, INC. GS-10F-225BA 256-489-0550 HUNTSVILLE ,AL s/dv
DAYTON T. BROWN, INC.       47QRAA19D00A4 631-244-6209 BOHEMIA ,NY s
DCS CORPORATION       47QRAA20D006W 5712276061 ALEXANDRIA ,VA o
DECIBEL RESEARCH, INC GS-10F-0029Y 2566033207 HUNTSVILLE ,AL s
DECISION TECHNOLOGIES INC. 47QRAA21D005X 703-416-5050 ARLINGTON ,VA s/d
DEFENSE ARCHITECTURE SYSTEMS, INC. GS-00F-291GA 443-831-3055 FULTON ,MD s
DEFENSE ENTERPRISE SOLUTIONS, LLC GS-00F-243GA 2566650966 HUNTSVILLE ,AL s/dv
DEFINITIVE LOGIC CORPORATION GS-00F-043CA 703-343-3409 ARLINGTON ,VA s
DEFTEC CORPORATION       47QRAA18D00FY 301-325-5115 HUNTSVILLE ,AL s/w/wo/ew/d
DELOITTE CONSULTING LLP 47QRAA18D001P 703-251-1143 ARLINGTON ,VA o
DELTA RESEARCH, INC. GS-10F-0246V (256)895-0881 HUNTSVILLE ,AL s  
DELTA RESOURCES, INC. GS-10F-0255S 703-581-4164 CHANTILLY ,VA o
DELTA SOLUTIONS & STRATEGIES, LLC GS-00F-215CA 719-475-0506 COLORADO SPRINGS ,CO s/dv
DELTASTRAC LLC 47QRAA18D00FE 301-337-0523 NEW WINDSOR ,MD s/dv/d/8a
DESE RESEARCH, INC. 47QRAA19D00CQ 2568378004 HUNTSVILLE ,AL s
DESIGN ALASKA INC GS-00F-361GA 907-452-1241 FAIRBANKS ,AK s
DIGIFLIGHT INCORPORATED GS-00F-195GA 256-603-5322 COLUMBIA ,MD s/v/d
DIGITAL MOBILIZATIONS, INC.       47QRAA19D00BP (540)219-9222 WARRENTON ,VA s/d    
DLS ENGINEERING ASSOCIATES, INC. GS-00F-229CA 757-494-5151 VIRGINIA BEACH ,VA s/w/wo
DMR CONSULTING, INC. 47QRAA18D00H2 (850)230-3767 PANAMA CITY BEACH ,FL s/w/wo/d  
DPRA INCORPORATED 47QRAA19D003T 785-564-6041 KNOXVILLE ,TN s
DRAGOON TECHNOLOGIES, INC. GS-07F-5553R 937-439-9223 DAYTON ,OH s
DRIVE ENGINEERING CORP. 47QRAA21D0094 215-367-5535 BLUE BELL ,PA s/d
DS2 LLC 47QRAA19D005F 850-307-2781 NICEVILLE ,FL s/dv
DYNAMIC CONCEPTS LLC       GS-10F-0006U 2567990669 HUNTSVILLE ,AL o
DYNAMIC-PRO INC. GS-10F-0329X 703-665-5085 FALLS CHURCH ,VA s/w/wo/ew/d/8a
DYNAMIS, INC. GS-00F-115DA 703-465-4400 FALLS CHURCH ,VA o
DYNETICS, INC. GS-00F-045CA 2567135320 HUNTSVILLE ,AL o
EASTERN RESEARCH GROUP, INC. GS-00F-079CA 7742491622 CONCORD ,MA o
ECS FEDERAL, LLC GS-00F-072CA 571-232-1412 FAIRFAX ,VA o
EDGESOURCE CORPORATION 47QRAA18D004S 703-837-0550 ALEXANDRIA ,VA s
EL DORADO ENGINEERING, INC.       47QRAA18D00E6 (801)966-8288 WEST JORDAN ,UT s  
ELYON INTERNATIONAL, INC. GS-00F-203GA (360) 696-5892 VANCOUVER ,WA s/w/wo/v/d
ELZLY TECHNOLOGY CORPORATION GS-23F-0167S 703-505-1905 RESTON ,VA o
EMERGENT SPACE TECHNOLOGIES, INC. GS-00F-196DA 301-345-1535 LAUREL ,MD s
EMPOWER AI, INC. GS-00F-263CA 703-707-6730 RESTON ,VA o
ENDICTUS CORP 47QRAA23D001T 7036783363 KISSIMMEE ,FL s/w/wo/ew/d/8a
ENERGY RESEARCH, INC.       47QRAA22D009T 3018810866 ROCKVILLE ,MD s
ENERGY TECHNOLOGY ALLIANCE LLC 47QRAA22D00EG 202-787-1518 REDMOND ,OR s/w/wo/ew/d/8a
ENFA CORPORATION 47QTCA19D00FA 727-992-3536 LEESBURG ,VA s/w/wo
ENGENIUSMICRO, LLC 47QRAA19D004K 2562611260X124 HUNTSVILLE ,AL s/h
ENGINEERING AND INFORMATION TECHNOLOGY INC. GS-00F-0062N 609-204-1386 CORAL SPRINGS ,FL s/w/wo
ENGINEERING AND SOFTWARE SYSTEM SOLUTIONS, INC.       GS-10F-0237Y 619-223-3066 SAN DIEGO ,CA s/w/wo
ENGINEERING RESEARCH AND CONSULTING, INC.       47QRAA21D004J 256-327-9162 HUNTSVILLE ,AL o
ENSCO, INC.       47QRAA20D006C 703-321-4727 SPRINGFIELD ,VA o
ENTERPRISE RESOURCE PLANNING INTERNATIONAL, LLC 47QRAA19D009W 3014900080 LAUREL ,MD o
EPSILON SYSTEMS SOLUTIONS, INC. 47QRAA21D005F 619-702-1700 SAN DIEGO ,CA o
ESCIENCE AND TECHNOLOGY SOLUTIONS, INCORPORATED GS-00F-124GA 301-429-0005 x106 LANDOVER ,MD s/d  
EVA GARLAND CONSULTING, LLC       47QRAA20D000Q 9198251600 RALEIGH ,NC s/w/wo
EXCET, INC. GS-00F-004BA 703-919-0953 SPRINGFIELD ,VA s
EXIGO CORPORATION       47QRAA22D0080 5019083497 COLORADO SPRINGS ,CO s/v
EXOSTRATEGIES, INC. GS-10F-0007V 719-649-4414 COLORADO SPRINGS ,CO s
EXPONENT, INC. 47QSMA18D0007 6506887013 MENLO PARK ,CA o
F3 SOLUTIONS, LLC GS-10F-195BA 478-971-1343 WARNER ROBINS ,GA s/w/wo/ew/d
FAAC INCORPORATED GS-00F-332CA 734-761-5836 ANN ARBOR ,MI o
FALCONA MANAGEMENT & TECHNOLOGY, L L C GS-00F-272CA 210-704-1486 SAN ANTONIO ,TX s/w/wo/ew/d/8a
FIELD MANAGEMENT SERVICES, INC. 47QRAA20D000W 212-628-6860 LOS ANGELES ,CA s
FIRE & RISK ALLIANCE, LLC 47QRAA18D00CT (937)505-3031 LINCOLNWOOD ,IL s/d  
FIRST LINE DEFENSE, LLC       47QRAA20D003B 7036776491 QUANTICO ,VA s/v/h
FIVE STONES RESEARCH CORPORATION GS-10F-0446X 2569750848 HUNTSVILLE ,AL s/w/wo/ew/d/8a
FLOWWEST, LLC 47QRAA22D0057 (727)992-3536 OAKLAND ,CA s    
FLUOR FEDERAL SERVICES, INC. 47QSHA22D0008 703-351-6450 GREENVILLE ,SC o
FRATELLO, INC. GS-10F-0202X (540)596-0695 STEPHENS CITY ,VA s/w/wo  
FREEDOM INFORMATION SYSTEMS, INC.       47QRAA20D0098 813-281-8008 TAMPA ,FL s/w/wo/dv
FREEDOM TECHNOLOGIES INC GS-00F-013CA (703) 516-3031 ARLINGTON ,VA s/w/wo
FTS INTERNATIONAL, LLC 47QRAA19D0064 703-225-7713 STERLING ,VA s
G2 OPS, INC. 47QRAA18D0002 757-373-7368 VIRGINIA BEACH ,VA s/w/wo/ew/d
G2S CORPORATION 47QRAA19D00C5 210-460-3432 SAN ANTONIO ,TX s/d/8a
GAN CORPORATION GS-10F-0085U 256-509-9150 HUNTSVILLE ,AL s
GANNETT FLEMING, INC. GS-00F-114CA 703-277-9505 CAMP HILL ,PA o
GARUD TECHNOLOGY SERVICES, INC. GS-10F-179AA 2022561079 ELLICOTT CITY ,MD s/w/wo/ew/d/8a
GAUSS MANAGEMENT RESEARCH AND ENGINEERING, INC. GS-10F-0028W 801-475-0243 SOUTH OGDEN ,UT s/v
GBL SYSTEMS CORPORATION 47QRAA19D007F 8059874345 CAMARILLO ,CA s
GC ASSOCIATES USA, LLC       47QTCA21D004S 632-866-9871 ARLINGTON ,VA s/dv/d/8a
GDS ASSOCIATES, INC.       47QRAA22D0008 770-799-2399 MARIETTA ,GA o
GEBC, LLC 47QRAA20D0057 703-895-6114 HUNTSVILLE ,AL s/dv
GEM TECHNOLOGIES, INC. 47QRAA20D007W 865-660-7339 KNOXVILLE ,TN s/d
GEM TECHNOLOGY INTERNATIONAL, CORP. GS-00F-0001R 305.447.1344 MIAMI ,FL s/w/wo/ew/d
GEM TECHNOLOGY INTERNATIONAL, CORP. 47QRAA22D008D 305-447-1344 MIAMI ,FL s/w/wo/ew/d
GEMINI INDUSTRIES INC. GS-00F-279CA 781-203-0100 BURLINGTON ,MA s/w/wo
GENCO SYSTEMS, INC. GS-23F-0019P 703-234-5261 HERNDON ,VA s/d/8a
GENCO SYSTEMS, INC. 47QRAA20D001P 703-234-5261 HERNDON ,VA s/d
GENERAL ATOMICS SYSTEMS INTEGRATION, LLC 47QRAA20D003N 801-546-8100 KAYSVILLE ,UT o
GENERAL DYNAMICS INFORMATION TECHNOLOGY, INC. GS-00F-057CA 7039953733 FALLS CHURCH ,VA o
GENERAL DYNAMICS INFORMATION TECHNOLOGY, INC. GS-00F-256CA 703-995-3733 FALLS CHURCH ,VA o
GENERAL DYNAMICS INFORMATION TECHNOLOGY, INC. GS-00F-313CA 703-995-3733 FALLS CHURCH ,VA o
GENERAL INFOMATICS-A SERVICE DISABLED OWNED VETERAN BUSINESS, INC. 47QRAA18D002D 7035605119 MCLEAN ,VA s/dv/d
GENERAL TECHNICAL SERVICES L.L.C.       47QRAA19D006Y 732-979-8870 WALL TOWNSHIP ,NJ s/w/wo
GENESIS ENGINEERING SOLUTIONS, INC. 47QRAA21D0011 240-582-3193 LANHAM ,MD s/d
GENEVA FOUNDATION, THE 47QRAA21D009K 253 682 3814 TACOMA ,WA o
GENEX SYSTEMS LLC GS-00F-076GA 757-838-5065 NEWPORT NEWS ,VA s/w/wo/d
GEOENGINEERS, INC. 47QRAA18D00E3 (425)861-6000 REDMOND ,WA o  
GEOGRAPHIC INFORMATION SERVICES, INC.       GS-35F-0682R 205-725-5836 BIRMINGHAM ,AL s
GEOGRAPHIC INFORMATION SERVICES, INC. 47QRAA19D00BD 2057255836 BIRMINGHAM ,AL o
GEORGE CONSULTING, LTD.       GS-35F-130GA 843-471-1322 NORTH CHARLESTON ,SC s
GEOSYNTEC CONSULTANTS,INC. 47QRAA22D003A 561-922-1079 BOCA RATON ,FL o
GILBANE BUILDING COMPANY GS-23F-0024R 5712532994 PROVIDENCE ,RI o
GLEASON RESEARCH ASSOCIATES INCORPORATED 47QTCA19D007A 2568837000 HUNTSVILLE ,AL s
GLOBAL C2 INTEGRATION TECHNOLOGIES LLC 47QRAA18D0067 (210) 639-0500 LAS VEGAS ,NV s/dv
GLOBAL ENGINEERING & TECHNOLOGY, INC. 47QRAA18D000R 202-899-2988 MIAMI ,FL s/d
GLOBAL ENGINEERING SOLUTIONS, INC. GS-10F-0160Y 3012162871 BETHESDA ,MD o
GLOBAL SYSTEMS TECHNOLOGIES, INC. GS-10F-0461Y 5712286726 MORRISVILLE ,PA s
GLOBAL TECHNOLOGY AND MANAGEMENT RESOURCES, INC. GS-00F-080GA 301-475-8181 HOLLYWOOD ,MD s/v
GOLDBELT C6, LLC 47QRAA19D00CS (757)550-2121 CHESAPEAKE ,VA s/d/8a
GRAHAM TECHNOLOGIES LLC 47QRAA19D00BY 240-764-7902 UPPER MARLBORO ,MD s/d
GRAY ANALYTICS, INC. 47QRAA23D003D 256-384-6034 HUNTSVILLE ,AL s
GREEN AND SUSTAINABLE SERVICES, LLC GS-07F-231CA 940-597-3723 PONDER ,TX s/w/wo/ew
GREENDART, INCORPORATED GS-10F-214AA 3102420032 SAN PEDRO ,CA s/h
GREENTREE GROUP, INC. THE GS-00F-180CA 937-490-5512 BEAVERCREEK ,OH s
GREENTREE GROUP, INC. THE GS-35F-396DA 937-490-5512 BEAVERCREEK ,OH s
GROUP W INC. GS-00F-069GA 703-752-5841 VIENNA ,VA s
GROVE RESOURCE SOLUTIONS, INC.       GS-10F-0502X 240-772-2433 BETHESDA ,MD o
GSD LLC 47QRAA21D0022 7572070809 WILLIAMSBURG ,VA s/v
GSI ENVIRONMENTAL INC. 47QRAA18D009N (512)346-4474 HOUSTON ,TX o  
HAMILTON SUNDSTRAND SPACE SYSTEMS INTERNATIONAL, INC. GS-10F-0439X (860)654-4244 HOUSTON ,TX o  
HASSAN WATER RESOURCES, PLC       47QRAA20D007A 804-543-8073 MAIDENS ,VA s
HATCH, JOHN M 47QRAA18D001M 4254660744 LAGO VISTA ,TX s
HDR ENGINEERING, INC. GS-00F-152CA 303-754-4252 OMAHA ,NE o
HEBCO, INC. 47QRAA18D00F2 (479)361-9692 OKLAHOMA CITY ,OK s/d  
HENRY M. JACKSON FOUNDATION FOR THE ADVANCEMENT OF MILITARY MEDICINE, INC., THE 47QRAA21D0016 (240)453-8879 BETHESDA ,MD o  
HEXAGON US FEDERAL, INC. 47QRAA18D00A2 478-322-3258 HUNTSVILLE ,AL o
HEXAGON US FEDERAL, INC. 47QTCA18D003G 478-322-3258 HUNTSVILLE ,AL o
HIGH SIDE TECHNOLOGY LLC 47QTCA20D003B 8435094979 JOHNS ISLAND ,SC s
HIGHERECHELON, INC. GS-00F-164GA 256-724-8842 HUNTSVILLE ,AL s/dv
HIGHERMOUNTAIN LLC 47QRAA23D003Q 256-945-0091 HUNTSVILLE ,AL s/dv
HII DEFENSE AND FEDERAL SOLUTIONS, INC. GS-00F-020CA 703-543-2979 HUNTSVILLE ,AL o
HILL INTERNATIONAL, INC. GS-23F-0035P 202-408-3062 WASHINGTON ,DC o
HILL TECHNICAL SOLUTIONS, INC.       47QRAA18D0056 2569701258 HUNTSVILLE ,AL o
HODGES TRANSPORTATION, INC. 47QRAA22D006W 775-629-2000 SILVER SPRINGS ,NV s/h
HOLMES-TUCKER INTERNATIONAL, INC.       GS-10F-0258T 301-866-1701 LEXINGTON PARK ,MD s/v
HUMANPROOF, LLC       47QRAA18D009H (202)480-2884 VIENNA ,VA s  
HW CONSULTING, INCORPORATED GS-10F-0156U (202)734-0753 WASHINGTON ,DC s/w/wo
HX5,, LLC       GS-00F-225GA 8503626551 FORT WALTON BEACH ,FL s/w/wo/dv
HYPERION TECHNOLOGY GROUP, INC. 47QRAA22D007P 6628230626 TUPELO ,MS s
HYPERSOFT INC GS-23F-0165P 6369478862 SAINT CHARLES ,MO s/w/wo
ICF INCORPORATED, L.L.C. GS-00F-010CA 703-934-3632 FAIRFAX ,VA o
ICON GOVERNMENT AND PUBLIC HEALTH SOLUTIONS, INC. 47QRAA23D0015 (330)278-2343 HINCKLEY ,OH o    
IDEAL INNOVATIONS INCORPORATED       GS-00F-345CA 571-480-5009 ARLINGTON ,VA s/dv
IDENTITY STRATEGY PARTNERS, LLC 47QRAA22D004H (703) 581-7721 ALEXANDRIA ,VA s/w/wo/ew/d
IESE SOLUTIONS 47QRAA19D00B4 3105947016 EL SEGUNDO ,CA s/w/wo/d
IGNITE FUELING INNOVATION, INC GS-10F-0107V 256-270-9020 HUNTSVILLE ,AL s/dv/d
INDUS TECHNOLOGY INC. 47QRAA18D00DR (619)299-2555 SAN DIEGO ,CA s/dv  
INFLOWLOGISTICS, LLC 47QRAA20D003L 972-523-0401 SAN ANTONIO ,TX s/w/wo/h
INFORMATION AND INFRASTRUCTURE TECHNOLOGIES, INC. GS-00F-031CA 703-478-7658 RESTON ,VA s/v
INFORMATION SYSTEMS LABORATORIES, INC. 47QRAA21D001U 858-373-2717 VIENNA ,VA s
INNOVATIVE CONSULTING & MANAGEMENT SERVICES, LLC 47QRAA19D000D 3014444100 ROCKVILLE ,MD s/d/8a/h
INSIGHT INTERNATIONAL TECHNOLOGY, LLC       47QRAA19D00BE (256) 551-0414 HUNTSVILLE ,AL s/dv/d
INSIGHT TECHNOLOGY SOLUTIONS, LLC 47QRAA18D0064 301-860-1121 ANNAPOLIS ,MD s/w/wo
INSPIRE CORPORATION 47QRAA20D008K 3039100430 AURORA ,CO s/dv
INSURANCE SERVICES OFFICE, INC. 47QRAA22D005Y 850-902-5075 JERSEY CITY ,NJ o
INTEGRATED SOLUTIONS FOR SYSTEMS, INC. GS-00F-378GA 2564899723 HUNTSVILLE ,AL o
INTEGRATION INNOVATION, INC. GS-00F-210CA 256-562-2978 HUNTSVILLE ,AL s
INTEGRATIVE SCIENCES LLC 47QSMA20D08QQ 617-438-5635 LOWELL ,MA s/w/wo/ew/d/8a
INTEK INC.       GS-00F-089GA 703-465-2231 ARLINGTON ,VA s
INTELLIGENCE & SECURITY ACADEMY LLC, THE 47QRAA22D0087 (703)567-7757 ARLINGTON ,VA s/v/8a
INTER-COASTAL ELECTRONICS, LLC GS-00F-0019Y 480-981-6898 MESA ,AZ o
INTERACTIVE PROCESS TECHNOLOGY, LLC GS-00F-0002X 7812225589 BURLINGTON ,MA o
INTERFUZE CORPORATION GS-35F-0013T 2563829715 HUNTSVILLE ,AL s
INTERNATIONAL INFORMATION AND INFRASTRUCTURE PROTECTION GROUP, LLC 47QRAA20D004B 717-891-6720 GETTYSBURG ,PA s/h
INTERNATIONAL TRADE BRIDGE, INC. GS-10F-078BA 9374311900 BEAVERCREEK ,OH s
INTERTEK TESTING SERVICES NA, INC.       GS-10F-0084U 770-280-7431 CORTLAND ,NY o
INTREPID, L.L.C. GS-10F-014AA 256-705-6830 HUNTSVILLE ,AL s
INTUITIVE RESEARCH AND TECHNOLOGY CORPORATION GS-23F-0343N 2569229300 HUNTSVILLE ,AL o
INTUITIVE RESEARCH AND TECHNOLOGY CORPORATION       47QRAA20D0022 2569229300 HUNTSVILLE ,AL s
INVARIANT CORPORATION GS-23F-0315P 256-885-9794 HUNTSVILLE ,AL s
INVICTUS INTERNATIONAL CONSULTING, LLC       47QRAA19D00C0 703-214-1201 ALEXANDRIA ,VA o
IOMAXIS GS-35F-274AA 703-455-2555 LORTON ,VA o
IOV SOLUTIONS LLC 47QRAA21D001K 571-373-1967 OAKTON ,VA s/dv/d/8a
IRONCLAD TECHNOLOGY SERVICES LLC 47QRAA20D000L 757-493-3572 VIRGINIA BEACH ,VA o
IRONMOUNTAIN SOLUTIONS, INC. GS-10F-0390Y 256-428-1922 HUNTSVILLE ,AL o
ISSAC CORP GS-10F-0233Y 719-725-6904 COLORADO SPRINGS ,CO s/dv
IT MENTOR GROUP, INC.       47QRAA23D002Q 619-992-8452 POWAY ,CA s/w/wo/ew/dv/d
ITSC SECURE SOLUTIONS, LLC GS-10F-0010U MAINVIELLE OWENS CROSS ROADS ,AL s/w/wo
J FOSTER & ASSOCIATES LLC 47QRAA22D0069 (208)709-0508 IDAHO FALLS ,ID s/w/wo/ew/d/8a    
JACKSON AND TULL, CHARTERED ENGINEERS       47QRAA18D00DJ 2405537005 WASHINGTON ,DC s/d
JACOBS ENGINEERING GROUP INC. 47QRAA21D00AF 571-218-1304 ARLINGTON ,VA o
JACOBS TECHNOLOGY INC. GS-00F-038CA 931-455-6400 TULLAHOMA ,TN o
JANUS RESEARCH GROUP, LLC GS-00F-310CA 7063649100 EVANS ,GA o
JARDON & HOWARD TECHNOLOGIES, INCORPORATED 47QRAA21D008B 407-381-7797 ORLANDO ,FL s/dv
JAXON ENGINEERING AND MAINTENANCE, INC.       GS-10F-0447Y 719-484-8750 COLORADO SPRINGS ,CO s/w
JBS SOLUTIONS INC GS-00F-240GA 334-467-6860 HUNTSVILLE ,AL s/w/wo/ew/d/h
JENSEN HUGHES, INC. GS-00F-006CA 425-217-1123 BALTIMORE ,MD o
JGMS GOVERNMENT SERVICES, LLC GS-00F-0014Y 970-254-1354 GRAND JUNCTION ,CO s/d/8a
JGMS GOVERNMENT SERVICES, LLC 47QRAA22D008H 9702541354 GRAND JUNCTION ,CO s/d
JJR SOLUTIONS, LLC GS-00F-146GA 937-356-3424 DAYTON ,OH s/dv
JMA SOLUTIONS LLC 47QRAA18D00GC 202-465-8208 WASHINGTON ,DC o
JMS NAVAL ARCHITECTS, LLC       GS-10F-0181V 860-536-0009 MYSTIC ,CT s/v
JOHN H NORTHROP & ASSOCIATES INC GS-10F-0168T (443)-624-2218 CLIFTON ,VA s/dv
JOHNSON, MIRMIRAN & THOMPSON, INC. GS-00F-194CA 410-329-3100 COCKEYSVILLE ,MD o
JOINT RESEARCH AND DEVELOPMENT, INC. GS-10F-0093T 5402883132X201 STAFFORD ,VA s/dv
JOINT VENTURE SOLUTIONS (JVS) LLC GS-00F-099GA 4432800698 MILLERSVILLE ,MD s/dv
JONES & CARTER, INC. 47QRAA20D003D (713)777-5337 BELLAIRE ,TX o  
JOVIAN SOFTWARE CONSULTING LLC       47QRAA20D004T (616)920-0458 GRAND RAPIDS ,MI s/w/wo/d  
JS SOLUTIONS LLC 47QRAA22D008Y 256-617-1471 HUNTSVILLE ,AL s/v
KALMAN & COMPANY, INC. GS-00F-343CA 757-461-4292 VIRGINIA BEACH ,VA s/w/wo
KARBON ENGINEERING SERVICES, LLC 47QRAA19D00AW (844)470-8802 EDISON ,NJ s    
KBM ENTERPRISES, INC.       GS-23F-0001R 9314689233 HUNTSVILLE ,AL s/w/wo
KBR WYLE SERVICES, LLC       GS-00F-200CA 2569716126 LEXINGTON PARK ,MD o
KEARNEY & COMPANY, P.C. GS-00F-031DA 703-931-5600 ALEXANDRIA ,VA o
KELLER-BLIESNER ENGINEERING, LLC       47QRAA18D004Q 435-753-5651 LOGAN ,UT s
KEMSYSTEK, LLC 47QRAA20D0047 (410)740-8706 ALEXANDRIA ,VA s/w/wo/dv/d  
KENIFIC GROUP INC, THE 47QRAA19D00C7 571-636-4002 FAIRFAX ,VA s
KENJYA-TRUSANT GROUP, LLC, THE GS-00F-137DA 410-740-4045 COLUMBIA ,MD o
KENTCO CORPORATION 47QRAA20D000S 571-665-4199 HERNDON ,VA s/dv
KEYW CORPORATION, THE GS-00F-001DA (703)984-4305 HANOVER ,MD o  
KIHOMAC, INC.       GS-10F-0173T 385-515-4280 RESTON ,VA o
KIMLEY-HORN AND ASSOCIATES, INC. GS-10F-0501X 919 677-2000 RALEIGH ,NC o
KINETIC METRICS, LLC 47QRAA20D000K 7036476221 ALEXANDRIA ,VA s/d/8a
KNEXUS RESEARCH CORP. 47QTCA21D00F2 855-569-7373 EXT 700 OXON HILL ,MD s/d/8a
KNOWESIS, INC. GS-10F-0165W 571-421-1101 FAIRFAX ,VA o
KODA TECHNOLOGIES INC. 47QRAA19D0081 256-509-2710 HUNTSVILLE ,AL s/w/wo/d
KORD TECHNOLOGIES, LLC GS-10F-0087Y (256)489-2346 HUNTSVILLE ,AL o  
LAGO CONSULTING & SERVICES LLC 47QRAA22D009K 813-774-5559 TAMPA ,FL s/w/wo/ew/d/8a
LANMARK TECHNOLOGY INC.       47QRAA19D006S 703-447-3876 CENTREVILLE ,VA s/w/wo/dv/d
LEIDOS, INC. GS-00F-022CA 240-460-5984 RESTON ,VA o
LEIDOS, INC. GS-35F-116AA (571) 526-7085 RESTON ,VA o
LEONARDO TECHNOLOGIES, INC.       GS-23F-0231R 7409682222X104 ST CLAIRSVILLE ,OH s
LEONARDO TECHNOLOGIES, INC.       47QRAA21D000U 7409682222X104 ST CLAIRSVILLE ,OH s
LINC RESEARCH, INC 47QRAA20D008M (256)318-5447 HUNTSVILLE ,AL s/h  
LINDAHL REED, INC. 47QRAA18D00GR 541/638-9164 REDMOND ,OR s/w/wo/ew/d/8a
LINK TECHNOLOGIES INC 47QRAA20D0096 301-983-6878 GERMANTOWN ,MD s/w/wo
LINQUEST CORPORATION 47QRAA18D000L 323-924-1568 LOS ANGELES ,CA o
LINQUEST CORPORATION 47QRAA21D009B 323-924-1587 LOS ANGELES ,CA o
LJB INC GS-00F-049CA 937-259-5000 MIAMISBURG ,OH o
LMI CONSULTING, LLC       GS-00F-041GA (703) 917-7524 TYSONS CORNER ,VA o
LOCKWOOD GROUP LLC, THE GS-00F-349GA 240-285-5480 BELCAMP ,MD s/dv
LOGAPPS LLC GS-10F-011CA (703) 560/8828 FALLS CHURCH ,VA s/v/d/8a
LOGICORE CORPORATION GS-00F-228CA 2565335789 HUNTSVILLE ,AL s/w
LOGISTICS & ENVIRONMENTAL SOLUTIONS CORPORATION 47QRAA19D00CX 256-971-7165 HUNTSVILLE ,AL s/w/wo
LOGISTICS MANAGEMENT ENGINEERING INC       GS-00F-069CA 410-757-6319 ANNAPOLIS ,MD s
LONGENECKER & ASSOCIATES, INC. GS-00F-258CA 301-651-6951 LAS VEGAS ,NV s/w/wo
LOYAL SOURCE GOVERNMENT SERVICES LLC 47QRAA18D008T 4075913088 ORLANDO ,FL o
LOYOLA ENTERPRISES INC 47QTCA21D00DE 757-498-6118 X101 VIRGINIA BEACH ,VA s/dv/d
LSINC CORPORATION 47QRAA18D00BC (937)505-3031 HUNTSVILLE ,AL s/w/wo/ew    
LUDLUM MEASUREMENTS, INC.       47QRAA19D008Y 801-260-4010 DRAPER ,UT s
LYNCH CONSULTANTS, LLC GS-00F-118DA 540-834-3490 ARLINGTON ,VA s/dv
LYNKER CORPORATION 47QTCA19D00GN 7034315855 LEESBURG ,VA s/h
LYNKER CORPORATION GS-00F-125CA 7034315855 LEESBURG ,VA o
MACAULAY-BROWN, INC GS-00F-063CA (937)426-3421 DAYTON ,OH o
MAG DS CORP.       GS-10F-060AA 732-493-1700 ABERDEEN ,MD o
MAINSAIL GROUP, LLC 47QRAA22D00DD 508-745-3195 BEDFORD ,MA s/w/wo/dv/d
MAN-MACHINE SYSTEMS ASSESSMENT (MSA), INCORPORATED GS-00F-219GA 202-408-0042 ARLINGTON ,VA s/w/wo/ew/d
MANAGEMENT SERVICES GROUP, INC. GS-00F-285DA (757)468-8751 VIRGINIA BEACH ,VA s/w/wo/d  
MANNIK & SMITH GROUP, INC., THE 47QRAA20D006A 734-790-5177 MAUMEE ,OH s
MANTECH ADVANCED SYSTEMS INTERNATIONAL, INC. GS-00F-086CA 703-218-6440 HERNDON ,VA o
MANUFACTURING TECHNICAL SOLUTIONS, LLC 47QRAA21D001L 256-890-9090 HUNTSVILLE ,AL s/w/wo
MARINE DESIGN AND OPERATIONS, INC. GS-23F-0233S 9086869414 COLONIA ,NJ s
MARINE SYSTEMS CORPORATION 47QRAA19D006B 617-542-3345 X1112 BOSTON ,MA s
MARTINFEDERAL CONSULTING, LLC GS-35F-491CA 256-382-4316 HUNTSVILLE ,AL s/dv/d/8a
MASON LIVESAY SCIENTIFIC, LLC 47QRAA19D00AJ (865)294-4368 OAK RIDGE ,TN s/w/wo/d  
MATRIX DESIGN GROUP, INC. 47QRAA19D009K (719)575-0100 COLORADO SPRINGS ,CO o  
MAXAR INTELLIGENCE INC.       47QRAA19D002V 703-439-4772 WESTMINSTER ,CO o
MAXQ RESEARCH LLC 47QRAA22D00EF 973-452-0161 STILLWATER ,OK s
MAYVIN, INC. GS-10F-0280Y (703) 750-1794 ALEXANDRIA ,VA o
MCHENRY MANAGEMENT GROUP, INC., THE GS-10F-0239U (757)410-0233 CHESAPEAKE ,VA s/v  
MCLAUGHLIN RESEARCH CORPORATION       47QRAA21D0093 (401) 849-4010 NEW LONDON ,CT s
MCR FEDERAL, LLC GS-00F-123CA 703.740.2237 MCLEAN ,VA o
MEDIADYNE, LLC 47QRAA18D00DY (301)785-3601 GREAT FALLS ,VA s/v  
MELE ASSOCIATES, INC. GS-00F-243CA (240)453-6962 ROCKVILLE ,MD s/v
METIS TECHNOLOGY SOLUTIONS, INC. 47QRAA21D009J (505)299-1509 ALBUQUERQUE ,NM s/w/wo    
METRON, INCORPORATED       GS-00F-166DA 7033262870 RESTON ,VA s
MICHAEL BAKER INTERNATIONAL, INC. 47QRAA21D008D 703-483-0029 ALEXANDRIA ,VA o
MICROCOM DESIGN, INC. GS-10F-0213W 410-771-1070 COCKEYSVILLE ,MD s
MILLENNIUM CORPORATION GS-10F-0141W 703-436-1346 ARLINGTON ,VA s/dv/d
MILVIAN SOLUTIONS, LLC       47QRAA18D008C (915)892-4585 EL PASO ,TX s/dv/d  
MINO MARINE, L.L.C. GS-00F-249GA 504-218-8162 NEW ORLEANS ,LA s
MISSION1ST GROUP, INC GS-35F-0199Y (571) 409-7133 ARLINGTON ,VA s/dv
MISSIONFOCUS LLC GS-10F-149AA 703-291-6721 MC LEAN ,VA s
MLT SYSTEMS LLC GS-10F-0168W 5403186383 STAFFORD ,VA s/dv
MOBIUS CONSULTING, LLC GS-00F-088GA 571-445-6320 ALEXANDRIA ,VA s/w/wo/h
MODERN TECHNOLOGY SOLUTIONS, INC.       47QRAA20D0036 703-564-3800 ALEXANDRIA ,VA s
MONTE SANO RESEARCH CORPORATION       47QRAA18D006B 2567053527 HUNTSVILLE ,AL s
MORSECORP, INC 47QRAA18D00A1 617-314-7509 CAMBRIDGE ,MA s
MPR ASSOCIATES, INC. 47QRAA19D0078 703-519-0200 ALEXANDRIA ,VA o
MTA, INC. GS-23F-0039P 256-922-1110 HUNTSVILLE ,AL s/w/wo
MTI SYSTEMS, INC. GS-00F-007BA (518)894-2538 LOTHIAN ,MD s/w/wo/d  
MTSA II JV LLC 47QRAA23D001Y 703-930-9624 FAIRFAX ,VA s/dv
MUNRO & ASSOCIATES INC 47QRAA23D000B (517)347-8952 AUBURN HILLS ,MI s    
NANORACKS, LLC 47QRAA18D004R (832)632-7754 WEBSTER ,TX s  
NATIONAL INSTITUTE FOR HOMETOWN SECURITY, INC., THE 47QRAA22D00A9 606-451-3450 SOMERSET ,KY o
NAVARRO RESEARCH AND ENGINEERING, INC. 47QRAA23D000P (865)220-9650 OAK RIDGE ,TN s/w/wo    
NAVIGATOR DEVELOPMENT GROUP, INC. 47QRAA21D001X 334-347-7612 ENTERPRISE ,AL s/dv
NAVIGATOR INTERNATIONAL, LLC GS-00F-393GA 334-348-1550 HUNTSVILLE ,AL o
NAVMAR APPLIED SCIENCES CORPORATION       47QRAA22D000F 215-675-4900 WARMINSTER ,PA s/dv
NELSON ENGINEERING CO. GS-00F-324CA 3214491128 MERRITT ISLAND ,FL s
NET VISION CONSULTANTS, INC. 47QRAA21D007K 443-249-3314 STEVENSVILLE ,MD s/w/wo/v
NETCENTRIC TECHNOLOGY, LLC 47QRAA19D00AU 571-418-9792 WALL ,NJ s/d
NETORIAN GS-35F-266AA 4439003800 ABERDEEN ,MD s
NETSEA TECHNOLOGIES LLC 47QRAA22D00E0 774-571-2191 BEL AIR ,MD s
NEWPORT PARTNERS, THE, LLC GS-00F-007CA (301) 889-0017 DAVIDSONVILLE ,MD s
NEXAGEN NETWORKS INC GS-00F-066GA 732-598-1277 OLD BRIDGE ,NJ s/w/d
NLOGIC, LLC GS-00F-239CA 2567042513 HUNTSVILLE ,AL s
NLT MANAGEMENT SERVICES LLC 47QRAA21D0056 713-504-5270 EWING ,NJ s/d
NOBLETECH SOLUTIONS INC. GS-35F-437DA 256-529-1753 HUNTSVILLE ,AL s/dv/d
NOBLIS, INC. GS-00F-096DA (703) 610-2290 RESTON ,VA o
NOETIC STRATEGIES, INC. 47QRAA18D00H6 2563471560 HUNTSVILLE ,AL s/w/wo/ew/d/h
NORMANDEAU ASSOCIATES INC 47QRAA23D002Z 603-637-1174 BEDFORD ,NH o
NORTHINGTON CONSULTING, LLC       47QRAA18D0083 (256) 651-3333 HUNTSVILLE ,AL s/dv
NORTHROP GRUMMAN SYSTEMS CORPORATION GS-00F-128CA 703-713-4588 MCLEAN ,VA o
NOU SYSTEMS, INC. GS-00F-143DA 256-327-5541 HUNTSVILLE ,AL s/w/wo
NOVATEC SOLUTIONS, LLC 47QRAA23D0021 256-468-7151 HUNTSVILLE ,AL s/w/wo/ew/d
NTA, INC. GS-10F-0132W 256-327-4103 HUNTSVILLE ,AL s
NTT DATA SERVICES FEDERAL GOVERNMENT LLC       47QRAA19D0069 703-289-8161 HERNDON ,VA o
OASIS SYSTEMS, LLC 47QRAA18D006F 781-879-1447 BURLINGTON ,MA s
OASYS, INC. GS-00F-182DA 2568019025 HUNTSVILLE ,AL s
OCEAN ASSOCIATES, INCORPORATED GS-10F-0567P 703-388-9548 ARLINGTON ,VA s/w/wo
OCEAN ASSOCIATES, INCORPORATED GS-35F-372GA 703-819-6939 ARLINGTON ,VA s/w/wo
OCH TECHNOLOGIES, LLC 47QRAA19D005Q 7038643479 LEESBURG ,VA s/d/8a
ODYSSEY SPACE RESEARCH, L.L.C. GS-23F-0382P (281)488-7953 HOUSTON ,TX s/wo  
ODYSSEY SYSTEMS CONSULTING GROUP, LTD. GS-10F-0254U 781-809-1604 WAKEFIELD ,MA o
OHIO AEROSPACE INSTITUTE 47QRAA22D0062 440-962-3017 BROOKPARK ,OH o
OHIO TECHNOLOGY CLEARINGHOUSE, INCORPORATED GS-10F-0038W 2564892623 HUNTSVILLE ,AL s
OLD DOMINION UNIVERSITY RESEARCH FOUNDATION GS-10F-097CA (757)683-7224 NORFOLK ,VA o  
ON POINT ASSOCIATES, LLC       47QRAA23D000G (505)803-7757 ALBUQUERQUE ,NM s    
ONEIDA TOTAL INTEGRATED ENTERPRISES, LLC 47QRAA20D009B (414)607-6767 MILWAUKEE ,WI s/d  
OPTIMIZATION TECHNOLOGIES, INC.       47QRAA22D00CJ 720-840-4837 BOULDER ,CO s
ORBIS SIBRO, INC. GS-23F-0185N 843-971-9390 CHARLESTON ,SC s/w
OST, INC. 47QRAA18D0090 703-462-9700 MC LEAN ,VA o
OUTREACH PROCESS PARTNERS, LLC       GS-00F-0008W (800) 517-1137 EXT 6 BETHESDA ,MD s/w/wo/ew/d
OVERLOOK SYSTEMS TECHNOLOGIES, INC. GS-10F-0100T 7039724368 VIENNA ,VA s
P3I, INCORPORATED 47QTCA20D000K 508-435-7882 HOPKINTON ,MA s/w/wo/v
PAGNOTTA ENGINEERING INC. 47QRAA19D0016 (859)572-4482 EXTON ,PA s    
PARALLAX ADVANCED RESEARCH CORPORATION 47QRAA22D0099 937-705-1057 BEAVERCREEK ,OH o
PARRA CONSULTING GROUP, INC 47QRAA19D00B9 240-686-6042 MIDDLETOWN ,MD s/dv/d/8a/h
PARSONS GOVERNMENT SERVICES INC. 47QRAA19D000A (210) 477-1616 PASADENA ,CA o
PARTNER ASSESSMENT CORPORATION 47QRAA18D00EE 1-435-294-2558 TORRANCE ,CA o
PATRICIO ENTERPRISES, INC GS-00F-167GA 703 441-4760 STAFFORD ,VA o
PATRONA CORPORATION 47QRAA19D009E (571)255-4703 WASHINGTON ,DC s  
PCCI, INC. 47QRAA18D00HE 703-229-1110 ALEXANDRIA ,VA o
PCI STRATEGIC MANAGEMENT, LLC 47QRAA20D002Z (443)430-0123 COLUMBIA ,MD s/v  
PD SYSTEMS, INC. GS-00F-331CA 703-778-7694 SPRINGFIELD ,VA o
PEERLESS TECHNOLOGIES CORPORATION GS-00F-355CA 9374753729 FAIRBORN ,OH o
PEGASUS TECHNOLOGIES & SOLUTIONS, INC. 47QRAA22D0018 2565291468 HUNTSVILLE ,AL s/dv/d/8a
PEOPLETEC, INC.       47QRAA22D00CX 256-319-3937 HUNTSVILLE ,AL s
PERATON AEROSPACE & DEFENSE INC. GS-23F-0207P 256-922-6783 HUNTSVILLE ,AL o
PEREGRINE TECHNICAL SOLUTIONS, LLC GS-35F-233CA 808-796-1364 YORKTOWN ,VA s/d/8a
PERIKIN ENTERPRISES, LLC GS-00F-003AA 505-333-0501 ALBUQUERQUE ,NM s/d/8a/h
PERKINS EASTMAN ARCHITECTS, D.P.C. 47QRAA22D000H 212-353-7305 NEW YORK ,NY o
PHASED N RESEARCH, INC       47QRAA21D001V 2567974631 HUNTSVILLE ,AL s/h
PHOTON EFLUX, LLC       47QRAA23D0048 (270)300-1716 HUNTSVILLE ,AL s    
PINNACLE SOLUTIONS, INC. GS-00F-0017X 256-489-1565 HUNTSVILLE ,AL o
PLANATE MANAGEMENT GROUP LLC GS-23F-058AA 703-585-1079 ALEXANDRIA ,VA s/dv
POLARIS SENSOR TECHNOLOGIES, INC. GS-00F-198GA 256-562-0087 HUNTSVILLE ,AL s/w/wo
POTOMACWAVE CONSULTING, INC. GS-00F-0007X 703-963-5064 ALEXANDRIA ,VA o
PPT SOLUTIONS, INC. GS-00F-422GA 256-319-0423 HUNTSVILLE ,AL s
PREFERRED PROGRAM SOLUTIONS INC 47QRAA18D009S 256-350-5983 MADISON ,AL s/dv
PRESCIENT EDGE CORPORATION 47QRAA18D00CU (917)330-3069 MC LEAN ,VA s/v  
PRIMETECH INTERNATIONAL, INC. 47QRAA18D00CY 816-888-7280 NORTH KANSAS CITY ,MO s/w/wo/d/8a
PRKK, L.L.C. 47QRAA18D006N 303-246-3377 STUART ,FL s
PROBITAS PROJECT, INC., THE 47QRAA22D0027 571-201-2966 VIENNA ,VA s/v
PRODUCTIVITY APEX, INC. GS-10F-0266U (407)222-1256 WINTER PARK ,FL s/w/wo/d/8a  
PROFESSIONAL PROJECT SERVICES, INC. GS-00F-112CA 865.220.4377 OAK RIDGE ,TN s
PROFESSIONAL, ACQUISITION, AND TECHNICAL SERVICES, INC. 47QTCA18D007W 703-416-1304 FALLS CHURCH ,VA o
PROJECT ENHANCEMENT CORPORATION 47QRAA22D007U 240-686-3059 GERMANTOWN ,MD o
PROMODEL GOVERNMENT SOLUTIONS, INC. GS-00F-421GA 860-608-5389 ANN ARBOR ,MI o
PROSOURCE CONSULTING, L.L.C. GS-10F-0123T 571-212-1500 GAINESVILLE ,VA s/w/wo/d/8a
PURVIS SYSTEMS INCORPORATED GS-10F-0191X (401)849-4750 QUEENS VILLAGE ,NY s  
QED SYSTEMS LLC 47QRAA18D00A9 443-360-4504 ABERDEEN PROVING GR ,MD s
QED SYSTEMS, INC. GS-00F-059CA 757-490-5021 VIRGINIA BEACH ,VA o
QINETIQ INC. 47QRAA18D00AA (781)795-2581 LORTON ,VA o  
QTEC, INC       47QRAA22D00D4 256-883-7994 HUNTSVILLE ,AL s/w/wo
QUALIS CORPORATION GS-10F-0025U 256-327-3512 HUNTSVILLE ,AL s/w/wo
QUALITY INNOVATION, INC. 47QRAA18D000E 703-382-6207 AUSTIN ,TX s/dv/h
QUANTERION SOLUTIONS INC 47QRAA22D0047 315-732-0097 UTICA ,NY s
QUANTUM RESEARCH INTERNATIONAL, INC. 47QRAA19D00A9 256-971-1800 1245 HUNTSVILLE ,AL s
QUASARS INCORPORATED 47QTCA18D006V 202-507-9446 WASHINGTON ,DC s/w/wo/h
R C M TECHNOLOGIES, INC.       47QRAA18D00F0 (856)356-4533 PENNSAUKEN ,NJ o  
R2C LIMITED LIABILITY COMPANY GS-00F-306GA 256-799-2363 HUNTSVILLE ,AL s/dv
RADIAL SOLUTIONS INC 47QRAA21D008F 2563052810 HUNTSVILLE ,AL s/dv/d/8a
RADIANCE TECHNOLOGIES, INC.       47QRAA19D008B 256-489-8960 HUNTSVILLE ,AL s
RAYTHEON COMPANY GS-35F-204GA 310-710-8372 WALTHAM ,MA o
RED CANYON SOFTWARE, INC       GS-00F-044GA (303)864-0556 DENVER ,CO s/dv/h  
RED GATE GROUP, LIMITED, THE GS-10F-0262X 2026000516 CHANTILLY ,VA s/dv
RED SIX SOLUTIONS, LLC 47QSWA20D002F 8455218359 SEVERNA PARK ,MD s/dv/d
REDHORSE CORPORATION       GS-00F-0013Y 619-241-4609 ARLINGTON ,VA o
REDHORSE CORPORATION GS-07F-134GA (619) 241-4609 ARLINGTON ,VA o
REED ENTERPRISE CONSULTING LLC       47QRAA18D00EP (256)603-4353 HUNTSVILLE ,AL s/dv/h  
RELIANT TECHNOLOGIES INC       47QRAA22D004V 256-426-8056 HUNTSVILLE ,AL s/v
RELOGIC RESEARCH, INC. 47QRAA23D0024 256-713-7401 HUNTSVILLE ,AL s/d/8a
RESEARCH TRIANGLE INSTITUTE GS-00F-354CA 9195416624 RESEARCH TRIANGLE P ,NC o
RESPEC COMPANY, LLC 47QTCA19D0084 (605) 394-6400 RAPID CITY ,SD o
RICARDO DEFENSE, INC. GS-10F-0212T 248-928-2347 GOLETA ,CA o
RIVERSIDE RESEARCH INSTITUTE 47QRAA19D00CN 937-427-7009 NEW YORK ,NY o
RIVERSIDE TECHNOLOGY, INC. GS-00F-0026P 9705685657 LOVELAND ,CO s
ROBERT AND COMPANY GS-00F-210GA 4045774000 ATLANTA ,GA s/dv
ROCK ENGINEERING LLC       GS-00F-319GA (860)841-7106 SOUTH WINDSOR ,CT s  
ROCKWOOD COMPANY LLC 47QRAA18D0018 2028416634 WASHINGTON ,DC s/w/wo
RSC2, INC 47QTCA19D00J2 410-991-2787 BALTIMORE ,MD s/h
S2 ANALYTICAL SOLUTIONS, LLC 47QRAA19D006L 571-306-0715 HERNDON ,VA s/v
SA TECHNICAL SERVICES, INC. 47QRAA19D00BL (850)613-6085 NICEVILLE ,FL s/dv
SABRE SYSTEMS, INC. GS-00F-178CA 215-347-1458 WARMINSTER ,PA o
SAGE ANALYSIS GROUP, INC. 47QTCA21D0058 617-650-1277 BOSTON ,MA s
SAGE SERVICES GROUP, LLC 47QREA21D0008 240-380-3504 BOWIE ,MD s/w/wo/ew
SARGENT & LUNDY ENGINEERING SERVICES, INC       47QRAA22D00ER (312)269-7556 CHICAGO ,IL o    
SAVIT CORPORATION 47QRAA21D006Z 973-602-3829 ROCKAWAY ,NJ s
SAWDEY SOLUTION SERVICES, INC. 47QRAA18D00AL 937-490-4060 BEAVERCREEK ,OH o
SAYRES AND ASSOCIATES LLC GS-00F-027CA (202)355-0922 WASHINGTON ,DC o  
SCAVET TECHNOLOGIES LLC GS-10F-087BA 856-218-9496 BLACKWOOD ,NJ s/dv
SCIENCE AND TECHNOLOGY ASSOCIATES, INC.       47QRAA19D0082 703-522-5123 ARLINGTON ,VA s
SCIENCE AND TECHNOLOGY CORPORATION 47QRAA21D0061 757-766-5819 HAMPTON ,VA s
SCIENCE APPLICATIONS INTERNATIONAL CORPORATION GS-00F-002CA 703-981-7244 RESTON ,VA o
SCIENTIFIC & BIOMEDICAL MICROSYSTEMS, LLC GS-10F-0497X 703-848-8850 GLEN BURNIE ,MD s
SCIENTIFIC RESEARCH CORPORATION 47QRAA21D0085 770-989-9447 ATLANTA ,GA o
SCITECH SERVICES, INC. GS-02F-0259X 443-303-3623 HAVRE DE GRACE ,MD s
SDS INTERNATIONAL, INC.       47QRAA21D004U 540-424-5926 ROCKLEDGE ,FL s/dv
SEI GROUP, INC. 47QRAA19D001U 256-533-0500 HUNTSVILLE ,AL o
SELAH GROUP FLORIDA, INC.       47QRAA22D0011 (321)305-4965 ROCKLEDGE ,FL s/d    
SELF TECHNOLOGIES, INC.       47QRAA19D001D 256-535-9517 OWENS CROSS ROADS ,AL s/w/wo
SELLERS & ASSOCIATES, LLC       47QRAA20D0099 703-848-7938 CHESAPEAKE ,VA s/v
SENSOR CONCEPTS AND APPLICATIONS, INC. GS-10F-0240Y 4439558899 GLEN ARM ,MD s/w/wo
SENTAR, INC.       GS-10F-095AA 256-430-0860 HUNTSVILLE ,AL s/w/wo
SERCO INC. GS-00F-129CA 703-414-5016 HERNDON ,VA o
SERCO INC. GS-00F-193CA 703.263.6000 HERNDON ,VA o
SERCO INC. GS-00F-297CA 7034486081 HERNDON ,VA o
SERES ENGINEERING & SERVICES LLC 47QRAA18D00ES (843) 216-8531 CHARLESTON ,SC s/d/8a
SERVO INNOVATIONS, LLC 47QRAA19D00B3 269-792-9279 WAYLAND ,MI s
SEV1TECH INC       GS-10F-0008V 7036629778 WOODBRIDGE ,VA o
SEV1TECH INC 47QRAA18D008N 504-831-1900 WOODBRIDGE ,VA s
SEVATEC LLC GS-10F-0142W 571-423-0200 VIENNA ,VA o
SHARMA & ASSOCIATES INC       GS-10F-0027T 708-588-9871 HINSDALE ,IL s/d
SIGMA SCIENCE, INC. 47QRAA18D005Q 505-389-2201 ALBUQUERQUE ,NM s/d/8a
SIGMARIVER INC. 47QRAA18D00GH 610-793-4390 FRONT ROYAL ,VA s/dv
SIGMATECH, INC. GS-00F-060CA 256-319-9212 HUNTSVILLE ,AL s
SIGNALINK, INC GS-00F-038GA 256-529-9096 MADISON ,AL s/w/wo/v
SIGNATURE SCIENCE, LLC GS-00F-105CA (877) 474-4724 AUSTIN ,TX o
SIGNATURE SOLUTIONS, INC.       GS-00F-207GA 2565081961 HUNTSVILLE ,AL s
SIMETRI, INC. 47QRAA21D00AM 3219729980 WINTER PARK ,FL s/w/wo/ew/d/8a
SIMULATION TECHNOLOGIES, INC.       GS-10F-100BA 256-428-2904 HUNTSVILLE ,AL s/wo
SIRIS LLC 47QRAA19D00CA 8439013540 MOUNT PLEASANT ,SC s/dv/d
SKJEI TELECOM, INC. GS-23F-0286P 703-249-9260 VIENNA ,VA s
SNA INTERNATIONAL, LLC 47QTCA19D00KX 703-370-1930 ALEXANDRIA ,VA s/w/wo/ew/d/8a
SOBRAN, INC. GS-00F-220CA 703-352-9511 DAYTON ,OH o
SOL ENGINEERING SERVICES, LLC GS-00F-223GA 601-961-1415 JACKSON ,MS s/d/h
SOLIDUS TECHNICAL SOLUTIONS, LLC 47QRAA21D000C 781-538-0616 LEOMINSTER ,MA s/w/wo/v
SONALYSTS, INC.       GS-00F-351CA 860-326-3652 WATERFORD ,CT o
SOS INTERNATIONAL LLC GS-00F-093CA 703-475-1757 RESTON ,VA o
SPACE METRICS, INC. GS-00F-299GA 202-860-0004 WASHINGTON ,DC s/d/8a/h
SPACE SYSTEMS INTEGRATION, LLC 47QRAA20D001A (703)380-9376 GREAT FALLS ,VA s    
SPACEFLIGHT, INC GS-00F-036DA 866-342-9934 SEATTLE ,WA o
SPECIAL AEROSPACE SERVICES GS-10F-0456X (303)625-1010 BOULDER ,CO s/w/wo/ew/d/8a  
SPECIALTY MANAGEMENT SERVICES OF OUACHITA LLC 47QRAA22D00ET 318-998-7613 MONROE ,LA s
SPECTRUM CENTER GOVERNMENT SERVICES, LLC 47QRAA19D001F 703-752-0462 MCLEAN ,VA s/w/wo
SPECTRUM COMM INC. GS-00F-318CA 757-224-7500 NEWPORT NEWS ,VA o
SPECTRUM INC 47QRAA18D00F5 865-806-7577 OAK RIDGE ,TN s/v/d
SPORIAN MICROSYSTEMS INC       47QRAA18D00BN 303-516-9075 LAFAYETTE ,CO s
SRC, INC. 47QRAA19D005N 3154528165 SYRACUSE ,NY o
SRI INTERNATIONAL 47QRAA21D002R 7032478531 MENLO PARK ,CA o
STANTEC CONSULTING SERVICES INC. 47QRAA19D000Q 916-418-8338 BROOMFIELD ,CO o
STANTON ENGINEERING SERVICES LLC 47QRAA18D0078 (410)290-9301 COLUMBIA ,MD s  
STARGATES, INC. GS-00F-0033Y 703-465-7955 ARLINGTON ,VA s
STELLAR SOLUTIONS, INC. 47QRAA18D00FQ 703-657-2734 PALO ALTO ,CA s/w/wo
STEMBOARD, LLC 47QRAA20D0039 703-884-2121 ARLINGTON ,VA s/w/wo/ew/d/8a
STONEWALL DEFENSE LLC 47QRAA23D0005 7738603332 TROY ,NY s/v/d
STRATA G, LLC GS-00F-004CA 8659343400 KNOXVILLE ,TN o
STRATA-G SOLUTIONS, LLC GS-10F-0287W 256-705-4316 HUNTSVILLE ,AL s/d
STRATEGIC ALLIANCE BUSINESS GROUP LLC GS-10F-0316P 7037175620 FAIRFAX ,VA s/w/wo/ew/dv
STRATEGIC ALLIANCE CONSULTING INC. GS-00F-372GA 703-224-8880 WARRENTON ,VA s/dv
STRATEGIC ANALYSIS, INC. GS-00F-342CA 703-797-2288 ARLINGTON ,VA o
STRATEGIC MANAGEMENT SOLUTIONS, LLC 47QRAA19D008M 505-907-6593 ALBUQUERQUE ,NM s
STRATEGIC TECHNOLOGY INSTITUTE INC GS-00F-164CA 301-770-7077 ROCKVILLE ,MD s/d
STRATEGIC VENTURES CONSULTING GROUP, LLC GS-00F-071GA (703)634-3673 FALLS CHURCH ,VA s/dv  
STS INTERNATIONAL, INCORPORATED       47QRAA19D00C9 703-575-5180 BERKELEY SPRINGS ,WV o
SUMMIT TECHNICAL SOLUTIONS LLC GS-10F-0347T 7194760715 COLORADO SPRINGS ,CO s/w/wo/v
SYMVIONICS, INC GS-23F-0357N 626-305-1400 X 228 ARCADIA ,CA s
SYNEREN TECHNOLOGIES, CORPORATION 47QTCA19D007L 3018300529 ARLINGTON ,VA s/w/wo/d
SYNERGISTICS, INC. 47QRAA19D000Y (800)875-7921 KENNEWICK ,WA s/d  
SYNERGY BUSINESS INNOVATION & SOLUTIONS INC. 47QRAA19D0042 571-375-7723 RESTON ,VA s/d/8a
SYSTEM DYNAMICS INTERNATIONAL INCORPORATED GS-23F-0033P (256) 895-9000 HUNTSVILLE ,AL s/w/wo
SYSTEM DYNAMICS INTERNATIONAL INCORPORATED 47QRAA23D0017 256-895-7189 HUNTSVILLE ,AL s/w/wo
SYSTEM STUDIES & SIMULATION, INC 47QRAA19D005Y 256-539-1700 X1117 HUNTSVILLE ,AL s/w/wo
SYSTEMATIC MANAGEMENT SERVICES, INC. GS-00F-241CA 3013530072 FREDERICK ,MD s
SYSTEMS KINETICS INTEGRATION GS-00F-288CA (443)534-7723 MARSTONS MILLS ,MA s/dv  
SYSTEMS PLANNING AND ANALYSIS, INC. GS-00F-186CA 703-399-7017 ALEXANDRIA ,VA o
SYSTEMS PRODUCTS AND SOLUTIONS, INC.       GS-00F-137CA 256-382-7736 HUNTSVILLE ,AL s/w/wo
SYSTEMS TECHNOLOGIES, INC.       GS-00F-0002U 732-571-6400 WEST LONG BRANCH ,NJ s
SYSTEMS TECHNOLOGY & RESEARCH, INC.       47QRAA22D00BA 256-529-2799 HUNTSVILLE ,AL s
SYSTEMS TECHNOLOGY FORUM LTD 47QTCA23D003R 540.809.3816 FREDERICKSBURG ,VA o
TAI ENGINEERS, LLC GS-00F-020GA (504)282-6166 NEW ORLEANS ,LA s/d  
TEAMWORKNET, INC GS-23F-0182R 8633271080 LAKELAND ,FL s
TEC SOLUTIONS LLC 47QRAA21D002W 703-926-0094 MC LEAN ,VA s
TEC-MASTERS INC. GS-00F-0004X 256-830-4000 HUNTSVILLE ,AL s/d
TECHFLOW, INC. 47QTCA19D0048 858-412-8000 SAN DIEGO ,CA o
TECHNI-CORE ENGINEERING INC 47QRAA20D009E 2567040234 HUNTSVILLE ,AL s/w/wo
TECHNICAL SYSTEMS INTEGRATION, INC. GS-00F-237CA 7039559575 NORFOLK ,VA s/dv
TECHNOLOGY SERVICE CORPORATION GS-23F-0240S 301-576-2372 ARLINGTON ,VA o
TECHNOMICS, INC. GS-00F-103DA 571-366-1428 ARLINGTON ,VA s
TECHSOURCE, INC. GS-00F-003DA 5054126251 LOS ALAMOS ,NM s
TECOLOTE RESEARCH, INC. GS-00F-052CA 805-571-6366 GOLETA ,CA s
TEKLA RESEARCH, INC. GS-10F-073AA 703-492-2620 FREDERICKSBURG ,VA s/dv
TELEDYNE BROWN ENGINEERING, INC. GS-00F-155CA 2567261211 HUNTSVILLE ,AL o
TELTRIUM SOLUTIONS, LLC 47QRAA20D001Y (301)741-2711 GREENBELT ,MD s/d/8a    
TESLA LABORATORIES INC. GS-23F-0208S 571.303.9483 ARLINGTON ,VA s/dv/d
TETRA TECH, INC. GS-00F-168CA 8056813102 PASADENA ,CA o
TEXAS RESEARCH INSTITUTE, AUSTIN, INC. 47QRAA19D0056 512-263-3272 AUSTIN ,TX s
THOMPSON GRAY, INC. GS-00F-097DA 256-582-1414 HUNTSVILLE ,AL o
TIER 1 PERFORMANCE SOLUTIONS, LLC 47QRAA21D0074 202-556-1841 COVINGTON ,KY s
TM CAPTURE SERVICES, LLC       47QRAA19D001Z (937) 426-2596 BEAVERCREEK ,OH s/w/wo/ew/d/8a
TOLLIVER GROUP, INC., THE GS-00F-0013W 2567150488 HUNTSVILLE ,AL s
TORCH TECHNOLOGIES INC GS-23F-0321N 256-319-6000 HUNTSVILLE ,AL o
TOTAL SOLUTIONS, INC. GS-23F-0253R 256-705-0128 MADISON ,AL s/w/wo/d
TOXCEL LLC 47QRAA22D003L 7037540248 GAINESVILLE ,VA s/d
TOYON RESEARCH CORPORATION GS-23F-0041P 805-968-6787 GOLETA ,CA s
TOYON RESEARCH CORPORATION 47QRAA22D00CR 805-968-6787 GOLETA ,CA s
TRANSYSTEMS CORPORATION 47QRAA19D001C 510-835-9898 KANSAS CITY ,MO o
TRAX INTERNATIONAL CORPORATION       47QRAA19D0072 702-216-4457 LAS VEGAS ,NV o
TRIDENT TECHNOLOGIES, LLC       GS-23F-0157P 256-705-5449 HUNTSVILLE ,AL o
TRIDENTIS, PLLC GS-10F-0462Y 7032444920 ALEXANDRIA ,VA s
TRIDEUM CORPORATION GS-10F-0130T 256-704-6112 HUNTSVILLE ,AL s
TRISEPT CORPORATION GS-10F-0118V 703-297-4622 CHANTILLY ,VA s
TRIVECTOR SERVICES, INC.       GS-10F-109CA 2564292171 HUNTSVILLE ,AL s/dv
TROY 7, INC. GS-00F-202GA 256-799-7706 HUNTSVILLE ,AL s/d
TSM CORPORATION GS-00F-284CA 407-443-4709 RESTON ,VA o
TUBA GROUP, INC. GS-00F-222CA 7034179410 FALLS CHURCH ,VA s/d/8a
TURNAROUND FACTOR INC       47QRAA22D00BG 8044042629 RICHMOND ,VA s/dv
TYTO GOVERNMENT SOLUTIONS, INC. GS-00F-350CA 7033429859 HERNDON ,VA o
TYVAK NANO-SATELLITE SYSTEMS, INC. 47QRAA18D00DG (949)753-1020 IRVINE ,CA s  
UL LLC GS-10F-0426Y 717-459-3391 NORTHBROOK ,IL o
UNCONVENTIONAL CONCEPTS, INC. 47QRAA21D008S 850-243-4411 FORT WALTON BEACH ,FL s
UNDERWRITERS LABORATORIES INC.       47QRAA18D007T 847-664-3475 NORTHBROOK ,IL o
UNIFIED BUSINESS TECHNOLOGIES, INC. GS-10F-0230X 248-588-1781 TROY ,MI s/w/wo/ew/d
UNIVERSAL SOLUTIONS INTERNATIONAL, INCORPORATED 47QRAA19D002G 757-563-5530 NEWPORT NEWS ,VA s/dv
UNIVERSAL TECHNICAL RESOURCE SERVICES, INC.       47QRAA19D009N 856-438-1114 CHERRY HILL ,NJ o
UNIVERSITY OF CENTRAL FLORIDA BOARD OF TRUSTEES, THE GS-00F-413GA 407-882-1168 ORLANDO ,FL o
UNIVERSITY OF DAYTON GS-23F-0143R 937-229-2920 DAYTON ,OH o
USFALCON, INC. GS-00F-322GA 919.459.1955 CARY ,NC s/dv
UTAH STATE UNIVERSITY SPACE DYNAMICS LABORATORY       GS-23F-0046P 4357133203 NORTH LOGAN ,UT o
VALI, INC. GS-23F-0037S 2705854538 HUNTSVILLE ,AL s/dv
VALKYRIE ENTERPRISES, LLC 47QRAA18D00DP (757)962-2545 VIRGINIA BEACH ,VA o  
VANA SOLUTIONS LLC       47QRAA18D00E2 (937)242-6399 BEAVERCREEK ,OH s/w/wo/ew/d  
VANASSE HANGEN BRUSTLIN INC GS-00F-116CA 804-441-7439 WILLIAMSBURG ,VA o
VAULTES, LLC 47QRAA19D00B1 202-503-9128 RESTON ,VA s/dv/d/8a
VECTOR RESOURCE, INC       GS-00F-0004U 619-433-9586 ERIE ,PA s/w
VECTRUS SYSTEMS CORPORATION GS-00F-050CA 7196374506 MCCLEAN ,VA o
VELOS LLC 47QRAA18D00G6 703-822-5777 PRINCESS ANNE ,MD s/h
VENTURI, LLC GS-00F-044CA 2567052019 HUNTSVILLE ,AL s/d
VERITY INTEGRATED SYSTEMS, INC. GS-00F-321GA 256-489-5680 HUNTSVILLE ,AL s/w/wo/ew/d
VERSAR, INC. 47QRAA18D00F7 703-642-6793 WASHINGTON ,DC o
VERSAR, INC. 47QRAA22D0055 202-567-2186 WASHINGTON ,DC o
VETERAN ENTERPRISE TECHNOLOGY SERVICES, LLC 47QRAA18D00EU 7033497600 ASHBURN ,VA s/dv
VICTORY SOLUTIONS, INC. GS-10F-0011U 256-895-2867 HUNTSVILLE ,AL s/w/wo/dv
VIGYAN, INC. 47QRAA21D0023 757 865-1400 X202 HAMPTON ,VA s/w/wo/d
VISION CENTRIC INC. GS-10F-0034U 256-830-0042 MADISON ,AL s/dv/d
VSE CORPORATION GS-00F-213CA 703-329-4724 ALEXANDRIA ,VA o
VT AEPCO INC. GS-23F-0191N 301-863-6512 VIRGINIA BEACH ,VA o
VT AEPCO INC. 47QRAA23D001W 757-463-2800 VIRGINIA BEACH ,VA o
W R SYSTEMS LTD. GS-00F-317GA 703-934-0200 FAIRFAX ,VA o
WARRANT TECHNOLOGIES LLC 47QRAA19D000G 8123616721 BLOOMINGTON ,IN s/dv/d
WAVELINK, INC. GS-10F-0397Y 256-776-7216 HUNTSVILLE ,AL s/w/wo
WILLBROOK SOLUTIONS, INC. GS-10F-0299V 2564895820 EXT 107 HUNTSVILLE ,AL s/w/wo
WILLOWVIEW CONSULTING, LLC GS-10F-0315V 2082500211 EAGLE ,ID s/w/wo/d
WJAB ENTERPRISES, INC. 47QRAA19D0099 (810)516-1157 BLOOMFIELD HILLS ,MI s/w/wo  
WORLDWIDE COUNTER THREAT SOLUTIONS, LLC 47QRAA19D00CM 703-412-9394 FREDERICKSBURG ,VA s/dv
WPL, INC.       GS-10F-0187X 310-546-4099 COLORADO SPRINGS ,CO s
WSP USA ENVIRONMENT & INFRASTRUCTURE INC. GS-00F-314CA 610-877-6109 BLUE BELL ,PA o
WSP USA SOLUTIONS INC. 47QRAA18D002R 202-303-2613 WASHINGTON ,DC o
X TECHNOLOGIES, INC. 47QRAA18D00EY 2102986037 SAN ANTONIO ,TX s/d
XCEL ENGINEERING, INC. GS-10F-0211P 865-481-3200 OAK RIDGE ,TN s/dv
XCEL ENGINEERING, INC. 47QRAA22D00D0 865-766-8543 OAK RIDGE ,TN s/dv
XPLOSAFE, LLC 47QRAA22D00A5 405-334-5720 STILLWATER ,OK s
YANG ENTERPRISES, INC. GS-10F-0135Y 407 365 7374 OVIEDO ,FL s/w/wo/d
YETISPACE, INC. 47QRAA19D001W 2566827645 HUNTSVILLE ,AL s
YORKTOWN SYSTEMS GROUP, INC. 47QRAA19D0030 877-406-0262 HUNTSVILLE ,AL o
ZANTECH IT SERVICES, INC. 47QRAA19D004L 7032861393 VIENNA ,VA s/w/wo/d