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00CORP The Professional Services Schedule (PSS)
Professional Engineering Services
Category Description
871 3 System Design, Engineering and Integration Services required under this SIN involve the translation of a system (or subsystem, program, project, activity) concept into a preliminary and detailed design (engineering plans and specifications), performing risk identification/analysis, mitigation, traceability, and then integrating the various components to produce a working prototype or model of the system. Typical associated tasks include, but are not limited to computer-aided design, e.g. CADD, design studies and analysis, design review services, shop drawing review services, submittal review services, conducting fire protection facility surveys, developing risk reduction strategies and recommendations to mitigate identified risk conditions, fire modeling, performance-based design reviews, high level detailed specification and scope preparation, configuration, management and document control, fabrication, assembly and simulation, modeling, training, consulting, analysis of single or multi spacecraft missions, and mission design analysis. Example: The navigation satellite concept produced in the preceding stage will be converted to a detailed engineering design package, performance will be computer simulated and a working model will be built for testing and design verification. Professional engineering solutions do 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.

An implementation guide for Space launch Integration Services (SLIS) can be found at www.gsa.gov/psschedule - click on "Professional Engineering Solutions". Guide is applicable to SINs 871-2, 871-3, 871-4 and 871-5.
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3D ENGINEERING SOLUTIONS, LLC       GS-00F-027GA (513)771-7710 CINCINNATI ,OH s/v    
3U TECHNOLOGIES, LLC       GS-10F-119AA 301-452-3152 CONROE ,TX s
4M RESEARCH, INC.       47QRAA19D0094 256-319-4646 HUNTSVILLE ,AL s/w/wo
5-D SYSTEMS, INC.       GS-23F-0322N 512-238-9840 X 18 ROUND ROCK ,TX s
A-TECH CORPORATION       47QRAA18D002K 505-767-1214 ALBUQUERQUE ,NM s
A2 SYSTEMS ENGINEERING, INC.       GS-10F-0316X 31046966606 EL SEGUNDO ,CA s/v
AASKI TECHNOLOGY INC       GS-10F-060AA 732-493-1700 ABERDEEN ,MD o
ABACUS TECHNOLOGY CORPORATION       GS-00F-191CA 301-215-7593 CHEVY CHASE ,MD o
ABRAHAM WEITZBERG       GS-23F-0115N 8183475068 WOODLAND HILLS ,CA s
ABSG CONSULTING INC.       GS-00F-026CA 865-671-5837 SPRING ,TX o
ACCURATE MACHINE & TOOL CORPORATION       47QRAA20D0013 (256)461-8063 MADISON ,AL s/w/wo    
ACQUIRED DATA SOLUTIONS, INC.       GS-00F-228GA 301-984-4193 ROCKVILLE ,MD s
ADVANCED CORE CONCEPTS, LLC       GS-00F-0005U 404-902-6301 WARNER ROBINS ,GA s
ADVANCED ELECTRONIC DESIGNS, INC.       GS-00F-016GA 4065858892 BOZEMAN ,MT s
ADVANCED MANAGEMENT STRATEGIES GROUP, INC.       GS-00F-024CA 571-931-0435 DUMFRIES ,VA s/dv
ADVANCED MANAGEMENT TECHNOLOGY, INC.       GS-00F-0006N 703-841-2680 ARLINGTON ,VA o
ADVANCED PROJECT CONSULTING, LLC       GS-00F-122GA 4784200272 WARNER ROBINS ,GA s/w/wo/ew/dv/d/8a
ADVANCED SCIENCES AND TECHNOLOGIES, LLC       GS-10F-0103U (856)719-9001 BERLIN ,NJ s  
AECOM MANAGEMENT SERVICES, INC.
(DBA: AECOM)
      GS-00F-046CA 301-944-3224 GERMANTOWN ,MD o
AECOM N&E TECHNICAL SERVICES LLC       GS-23F-0146R 803-502-9613 AIKEN ,SC o
AEGIS TECHNOLOGIES GROUP, INC., THE       GS-10F-0019U 256-922-0802 HUNTSVILLE ,AL s
AERO THERMO TECHNOLOGY, INC.       47QRAA18D00BA 2569221141 HUNTSVILLE ,AL s/w/wo
AERO THERMO TECHNOLOGY, INC.       GS-23F-0333K (256)922-1141 HUNTSVILLE ,AL s/w  
AES GROUP INC       GS-23F-0250N 303-841-3922 PARKER ,CO s/dv
AFFILIATED ENGINEERS METRO DC, INC.       47QRAA18D00GE 3014687766 ROCKVILLE ,MD o
AFG GROUP INC.       GS-23F-0371P 7034350029 HERNDON ,VA s/w/wo
AI SIGNAL RESEARCH, INC.       GS-10F-0254T 256-551-0008 X 39 HUNTSVILLE ,AL s/w
AI SOLUTIONS, INC.       GS-23F-0124L 301-306-1756 LANHAM ,MD s
AIR LOGISTICS AND ENGINEERING CONSULTANTS, LLC       47QRAA18D0092 478-971-6765 WARNER ROBINS ,GA s
ALABAMA A&M UNIVERSITY RESEARCH, INNOVATION, SCIENCE AND ENGINEERING FOUNDATION, INC., THE       47QRAA19D002C (256)372-5866 NORMAL ,AL o    
ALION SCIENCE AND TECHNOLOGY CORPORATION       GS-00F-064CA 703-259-5008 BURR RIDGE ,IL o
ALLEGHENY SCIENCE & TECHNOLOGY CORPORATION       GS-10F-053AA 571-418-6376 BRIDGEPORT ,WV s/w/wo/ew/d/8a
ALLIED MISSION GROUP LLC       47QRAA18D00G8 571-344-0888 LEESBURG ,VA s/d/h
ALPHA BETA TECHNOLOGIES, INC.       GS-23F-0109S 256-679-7950 HUNTSVILLE ,AL s/dv/d/8a
ALPHA CONSTRUCTION AND ENGINEERING CORPORATION       GS-23F-0209N 703.450.0800 DULLES ,VA o
ALPHA-OMEGA CHANGE ENGINEERING, INC.       GS-10F-0310L 757-224-3716 WILLIAMSBURG ,VA o
ALPHASIX CORPORATION       47QRAA19D00B6 703-579-6479 DULLES ,VA o
ALTUS, LLC       GS-10F-0155V (410) 457-8115 DARLINGTON ,MD s
AMEE BAY, LLC       GS-10F-0255V 703-365-0450 ANCHORAGE ,AK s/d/8a
AMERICAN SYSTEMS CORPORATION       GS-00F-089CA 703-968-5068 CHANTILLY ,VA o
ANALYSIS, PLANNING AND MANAGEMENT INSTITUTE, INC.       47QRAA19D0047 (844)470-8802 CULPEPER ,VA o    
ANALYTIC SERVICES INC.       GS-00F-095CA 7034161304 FALLS CHURCH ,VA o
ANALYTICAL MECHANICS ASSOCIATES, INC.       GS-23F-0047L 757-865-0000X218 HAMPTON ,VA s/d/8a
ANALYTICAL SERVICES & MATERIALS, INC.       GS-23F-0281K 7578657093 X311 HAMPTON ,VA s/w/d
ANALYTICAL SERVICES, INC.       GS-00F-020DA 301-837-9044 HUNTSVILLE ,AL s/d
ANDROMEDA SYSTEMS INCORPORATED       GS-10F-0300Y 904-402-8661 VIRGINIA BEACH ,VA s/dv
APOGEE ENGINEERING, LLC       GS-10F-0242W 7194184968 COLORADO SPRINGS ,CO s/d/8a
APPLIED DEFENSE SOLUTIONS, INC.       GS-10F-0198Y 4107150005 COLUMBIA ,MD s
APPLIED RESEARCH ASSOCIATES, INC.       GS-00F-341CA 505-881-8074 ALBUQUERQUE ,NM 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
APSI CONSTRUCTION MANAGEMENT       GS-23F-0054S 9496790202 IRVINE ,CA s
ARCADIS U.S., INC.       GS-00F-179CA 757-419-3976 HIGHLANDS RANCH ,CO o
ARCHARITHMS, INC.       GS-00F-175DA 2564262915 HUNTSVILLE ,AL s/h
ARES CORPORATION       GS-23F-0113L 650-401-7100 BURLINGAME ,CA o
ARION SYSTEMS, INC.       47QRAA19D00DS (703)815-1130 CHANTILLY ,VA s    
ART ANDERSON ASSOCIATES, INC.       GS-10F-0159U 360-479-5600 BREMERTON ,WA s/v
ASCA, INC.       GS-23F-0049R 3103166249 EXT 105 REDONDO BEACH ,CA s
ASCENSION GLOBAL SOLUTIONS, LLC       47QRAA19D009Y 781-254-9020 NORTH BILLERICA ,MA s/w/wo/dv/d
ASR INTERNATIONAL CORP.       GS-00F-283CA 6312311086 HAUPPAUGE ,NY s
ASRC AEROSPACE CORP       GS-00F-0059N 301-837-5443 BELTSVILLE ,MD o
ASSURED INFORMATION SECURITY, INC.       GS-00F-235GA 315-336-3306 ROME ,NY s
AT&T GOVERNMENT SOLUTIONS, INC.       GS-00F-350CA 5713544065 VIENNA ,VA o
ATKINS NORTH AMERICA, INC.       GS-00F-007AA 813-281-4584 TAMPA ,FL o
ATKINSON AERONAUTICS & TECHNOLOGY, INC.       47QRAA18D009W 540-760-7499 FREDERICKSBURG ,VA s/dv
ATMOSPHERIC AND ENVIRONMENTAL RESEARCH, INC.       GS-10F-0313Y (781)761-2380 LEXINGTON ,MA o  
AUSGAR TECHNOLOGIES, INC.       GS-00F-198CA (858)444-8208 SAN DIEGO ,CA s/dv  
AUSLEY ASSOCIATES INC       GS-10F-051CA (301)863-2800 LEXINGTON PARK ,MD s/v  
AVIAN, INC.       47QRAA18D006L 301-866-2070 X131 LEXINGTON PARK ,MD s/dv
AVIATION & MISSILE SOLUTIONS, LLC       GS-23F-0017P 256-713-5903 HUNTSVILLE ,AL o
AVION SOLUTIONS, INC.
(DBA: AVION)
      GS-00F-0082N 256-721-7006 HUNTSVILLE ,AL s
AVNIK DEFENSE SOLUTIONS INC       GS-10F-219AA 256-513-5295 HUNTSVILLE ,AL s/w/wo
B3GLOBALCON, LLC       GS-00F-226GA 804-519-9808 MIDLOTHIAN ,VA s/dv/d
BACIK GROUP LLC       GS-00F-017CA 256-424-3306 PELHAM ,AL s/dv
BAE SYSTEMS TECHNOLOGY SOLUTIONS & SERVICES INC.       GS-00F-240CA (301) 738-5985 ROCKVILLE ,MD o
BANDWIDTH SOLUTIONS INC
(DBA: BSII GROUP)
      GS-23F-0295P (703)966-4478 MC LEAN ,VA s/w
BANNER DEFENSE, INC.       47QRAA19D004Q 2569708795 MADISON ,AL s/dv
BARBARICUM LLC       GS-00F-206CA (202) 393-0873 WASHINGTON ,DC s/dv/h
BASTION TECHNOLOGIES, INC.       47QRAA19D007C 281-283-9359 HOUSTON ,TX s/d
BASTION TECHNOLOGIES, INC.       GS-00F-0040P 281-283-9359 HOUSTON ,TX o
BATTELLE MEMORIAL INSTITUTE       GS-00F-084CA 614-424-4647 COLUMBUS ,OH o
BAYFIRST SOLUTIONS LLC       GS-10F-0356Y 202-541-1010 WASHINGTON ,DC s/d
BCF SOLUTIONS, INC.       47QRAA19D007K 703-239-3928 CHANTILLY ,VA o
BEACON SYSTEMS, INC       47QRAA18D0091 9544261171 CORAL SPRINGS ,FL s/w/wo/ew/d
BFA SYSTEMS, INC.       GS-10F-0303T 2566797950 HUNTSVILLE ,AL s/dv
BMT DESIGNERS & PLANNERS, INC.       GS-00F-337CA 703-920-7070 ARLINGTON ,VA o
BOEING AEROSPACE OPERATIONS, INC.       GS-23F-0183K 314-563-7049 SAINT LOUIS ,MO o
BOHANNAN-HUSTON, INC.       GS-00F-0001Y 5058231000 ALBUQUERQUE ,NM o
BONHAM TECHNOLOGIES, INC.       GS-00F-194GA 256-864-2340 HUNTSVILLE ,AL s/dv
BOOZ ALLEN HAMILTON INC.       GS-00F-008DA 703-377-4359 MCLEAN ,VA o
BOSTON GOVERNMENT SERVICES, LLC       GS-00F-013GA (202)262-8098 LENOIR CITY ,TN s/d/8a
BRADSHAW ENGINEERING AND TECHNICAL SERVICES, LLC       GS-00F-183DA 256-603-6471 HUNTSVILLE ,AL s
BRATSLAVSKY CONSULTING ENGINEERS, INC.       GS-00F-071CA 9072725264 ANCHORAGE ,AK s/w/wo/ew/d
BRILLIGENT SOLUTIONS, INC.       47QRAA18D0062 937-879-4148 FAIRBORN ,OH s
BRMI CONSULTING, INC.       GS-10F-0143T 4434186674 CHEVY CHASE ,MD o
BRTRC FEDERAL SOLUTIONS, INC.       GS-00F-041CA 703-205-1542 VIENNA ,VA o
BTAS INC       GS-23F-0131K 937-431-9431 BEAVERCREEK ,OH s/w/wo
BURNS ENGINEERING, INC.       47QRAA19D00AF 215-979-7700 PHILADELPHIA ,PA o
C4 PLANNING SOLUTIONS, LLC       47QRAA18D006V 706-592-1520 EXT 143 BLYTHE ,GA o
CACI INC FEDERAL       GS-00F-268CA 703-679-3207 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/h
CANYON CONSULTING, LLC       47QRAA18D0065 888-316-1697 LOS ANGELES ,CA s/w/wo/ew/d
CARDNO GS, INC.       GS-00F-196CA 916-355-1248 CHARLOTTESVILLE ,VA o
CAS, INC.       GS-00F-200CA 256-971-6126 HUNTSVILLE ,AL o
CATALYST SOLUTIONS, LLC       GS-00F-412GA 540-602-2600 STAFFORD ,VA s/dv/d
CDI MARINE COMPANY       47QRAA19D002E (757) 763-6722 NORFOLK ,VA o
CDM FEDERAL PROGRAMS CORPORATION       GS-00F-085CA 303-383-2300 FAIRFAX ,VA o
CENTRA TECHNOLOGY, INC.       GS-00F-0020Y 781-272-7892 BURLINGTON ,MA o
CENTURUM INFORMATION TECHNOLOGY, INC.       47QRAA19D00AM 703-415-9384 MARLTON ,NJ o
CEPEDA SYSTEMS & SOFTWARE ANALYSIS, INC.       GS-00F-224GA 2564288186 HUNTSVILLE ,AL s/w/wo/ew/d/h
CERVELLO TECHNOLOGIES, L.L.C.       47QRAA18D003E 727-303-3009 CLEARWATER ,FL s/dv/d
CFD RESEARCH CORPORATION       GS-10F-0184Y 256-726-4897 HUNTSVILLE ,AL s
CGI FEDERAL INC.       GS-00F-302CA 703-227-4882 FAIRFAX ,VA o
CH2M HILL, INC.       GS-00F-018CA 8655602907 ENGLEWOOD ,CO o
CHENEGA TECHNICAL INNOVATIONS, LLC       47QRAA19D0096 703-493-9880 CHANTILLY ,VA o
CHEROKEE NATION GOVERNMENT SOLUTIONS       GS-00F-174CA 303-277-1444 CATOOSA ,OK s
CHEROKEE NATION RED WING, L.L.C.       GS-00F-007DA 9184303426 TULSA ,OK s/d/8a
CIMARRON SOFTWARE SERVICES, INC.       47QRAA19D004Y 2812265180 HOUSTON ,TX s/w/wo
CINTEL, INC.       GS-00F-268GA 256-655-6002 HUNTSVILLE ,AL s
CITRINE ENERGY LLC       47QRAA19D008Z 7202721253 DENVER ,CO s/d/h
CMT SERVICES, INC.       47QRAA19D008U 301-322-7860 HYATTSVILLE ,MD s/w/wo/h
COLSA CORPORATION       GS-00F-293CA 256-964-5276 HUNTSVILLE ,AL s/dv
COLUMBIA GROUP, INC, THE       GS-00F-201CA 2026088415 WASHINGTON ,DC o
COMPUTER SERVANTS, INC.       GS-23F-0059S (850)251-4784 TALLAHASSEE ,FL s/w/wo
COMPUTERCRAFT CORPORATION       GS-00F-262GA 571-266-3362 MC LEAN ,VA s/w/wo
CONCURRENT TECHNOLOGIES CORPORATION       GS-00F-0072M 814-269-6576 JOHNSTOWN ,PA o
CONSTRUCTION-CAD SOLUTIONS, INCORPORATED       47QRAA19D000X (630)908-3400 WILLOWBROOK ,IL s/d    
COOPER ZIETZ ENGINEERS, INC       GS-10F-0337T 503-253-5429 PORTLAND ,OR s/v/d/h
CORNERSTONE CONCILIUM, INC       GS-00F-0007S (415)705-7800 SAN FRANCISCO ,CA s/d
CORNERSTONE SIGNALS & CYBER TECHNOLOGIES LLC       47QRAA19D0003 720-206-6718 CHRISTOVAL ,TX s/w/wo/ew/dv/d
CORTINA SOLUTIONS, LLC       GS-00F-205DA 2563192024 HUNTSVILLE ,AL s/w/wo/ew/h
CRAFT DESIGNS, INC.       47QRAA18D00A3 2566500536 HUNTSVILLE ,AL s/w/wo/d
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 571-395-8820 VIENNA ,VA s/d/8a
CROSSFLOW TECHNOLOGIES, INC       47QRAA18D008D (256)425-3680 ALBERTVILLE ,AL s    
CROSSTEK SOLUTIONS, LLC       GS-00F-230GA 334-467-6860 VICKSBURG ,MS s
CRUZ ASSOCIATES INC.       GS-10F-0379U 7578337538 YORKTOWN ,VA s
CSRA LLC       GS-00F-313CA (571) 446-5340 FALLS CHURCH ,VA o
CZERO, INC.       GS-10F-0081X 9703722732 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/dv
DAMA CONSULTANTS, INC       47QRAA19D0037 (815)979-4407 CHICAGO ,IL s/d/8a/h    
DARKBLADE SYSTEMS CORPORATION       GS-00F-012GA 703-409-9439 WINCHESTER ,VA s/dv
DAVID CLARK COMPANY INCORPORATED       GS-10F-0467Y 508-751-5800 WORCESTER ,MA s
DAVIDSON TECHNOLOGIES, INC.       GS-23F-0082L 256-489-0423 HUNTSVILLE ,AL s/w/wo
DAVIS STRATEGIC INNOVATIONS, INC.       GS-10F-225BA 256-489-0550 HUNTSVILLE ,AL s/dv
DAYTON T. BROWN, INC.       47QRAA19D00A4 (631)589-6300 BOHEMIA ,NY s    
DCS CORPORATION       GS-23F-0303K (571)227-6192 ALEXANDRIA ,VA s  
DCS-MILLENNIUM LLC       47QRAA18D0038 571-227-6211 ALEXANDRIA ,VA s/dv/d
DECIBEL RESEARCH, INC       GS-10F-0029Y 256-489-6193 HUNTSVILLE ,AL s
DECISIVE ANALYTICS CORPORATION       GS-00F-129CA 703-414-5016 ARLINGTON ,VA s/v
DEFENSE ACQUISITION, INC       GS-23F-0037S 256-327-9369 HUNTSVILLE ,AL s/dv
DEFENSE GROUP LLC       GS-00F-0013R 5714218341 VIENNA ,VA o
DEFINITIVE LOGIC CORPORATION       GS-00F-043CA 703-955-4186 EXT 866 ARLINGTON ,VA s
DELOITTE CONSULTING LLP       47QRAA18D001P 703-251-1642 ARLINGTON ,VA o
DELOITTE CONSULTING LLP       GS-00F-0028Y 703-251-1642 ARLINGTON ,VA o
DELTA RESEARCH, INC.       GS-10F-0246V 256-895-0881 HUNTSVILLE ,AL s
DELTA RESOURCES, INC.       GS-10F-0255S 703-581-4164 ALEXANDRIA ,VA o
DELTA SOLUTIONS & STRATEGIES, LLC       GS-00F-215CA 719-475-0605 COLORADO SPRINGS ,CO s/dv
DESE RESEARCH, INC.       47QRAA19D00CQ 2568378004 HUNTSVILLE ,AL s
DESE RESEARCH, INC.       GS-23F-0177L 256-837-8004 HUNTSVILLE ,AL s
DESIGN ALASKA INC       GS-00F-361GA 907-452-1241 FAIRBANKS ,AK s
DESIGN INTERACTIVE INC       GS-00F-0015Y (407)706-0977 ORLANDO ,FL s/w/wo  
DETROIT DESIGN ENGINEERING LLC       GS-00F-295GA (248)585-0770 TROY ,MI s/d    
DIGIFLIGHT INCORPORATED       GS-00F-195GA 4103120662 COLUMBIA ,MD s/v/d
DIGITAL MOBILIZATIONS, INC.       47QRAA19D00BP (540)219-9222 WARRENTON ,VA s/d    
DIGITALGLOBE, INC.       47QRAA19D002V 3036841164 WESTMINSTER ,CO o
DLS ENGINEERING ASSOCIATES, INC.       GS-00F-229CA 757-494-5151 VIRGINIA BEACH ,VA s/w/wo
DMR CONSULTING, INC.       47QRAA18D00H2 8502303767 PANAMA CITY BEACH ,FL s/w/wo/d
DOMAIN X TECHNOLOGIES LLC       47QRAA18D0069 (703)579-1969 FALLS CHURCH ,VA s/w/wo    
DPRA INCORPORATED       47QRAA19D003T (785)564-6041 KNOXVILLE ,TN s
DPRA INCORPORATED       GS-00F-0030L 785-564-6041 KNOXVILLE ,TN s
DRAGOON TECHNOLOGIES, INC.       GS-00F-218DA 937-439-9223 DAYTON ,OH s/w/wo
DRS GLOBAL ENTERPRISE SOLUTIONS, INC.       GS-00F-294CA 703-896-7100 DULLES ,VA o
DS2 LLC       47QRAA19D005F 850-307-2781 NICEVILLE ,FL s/dv
DUCOM, INCORPORATED       GS-23F-0307K 301-585-0900 SILVER SPRING ,MD s/w/wo/d
DYNAMIC CONCEPTS, INC.       GS-10F-0006U 2569229888 HUNTSVILLE ,AL s
DYNAMIS, INC.       GS-00F-115DA 703-465-4400 FAIRFAX ,VA s
DYNETICS, INC.       GS-00F-045CA 256-713-5320 HUNTSVILLE ,AL o
E3 FEDERAL SOLUTIONS, LLC       GS-00F-151CA 571 551-2726 MCLEAN ,VA o
EAGLE SYSTEMS INCORPORATED       GS-23F-0213K 3018632453 CALIFORNIA ,MD s/v
EASTERN RESEARCH GROUP, INC.       GS-00F-079CA 7816747200 LEXINGTON ,MA o
ECS FEDERAL, INC.       GS-00F-072CA 703 270 1540 FAIRFAX ,VA o
EDGESOURCE CORPORATION       47QRAA18D004S 7038370550 ALEXANDRIA ,VA s
EL DORADO ENGINEERING, INC.       47QRAA18D00E6 801-966-8288 WEST JORDAN ,UT s
ELEVAN LLC       GS-00F-051DA 210.807.9981 SAN ANTONIO ,TX s/w/wo/ew/d
ELYON INTERNATIONAL, INC.       GS-00F-203GA (360)696-5892 VANCOUVER ,WA s/w/wo/ew/v/d  
ELZLY TECHNOLOGY CORPORATION       GS-23F-0167S 703-738-6624 RESTON ,VA s
EMERGENT SPACE TECHNOLOGIES, INC.       GS-00F-196DA 301-345-1535 LAUREL ,MD s
ENERGETICS INCORPORATED       GS-00F-147CA 410-953-6274 COLUMBIA ,MD o
ENERGY RESEARCH, INC.       GS-23F-0110M 301-881-0866 ROCKVILLE ,MD s
ENGENIUSMICRO, LLC       47QRAA19D004K 2562611260X124 HUNTSVILLE ,AL s/h
ENGILITY CORPORATION       GS-00F-092CA 703-984-5052 ANDOVER ,MA o
ENGINEERING AND INFORMATION TECHNOLOGY INC.       GS-00F-0062N 609-272-1515 EGG HARBOR TOWNSHIP ,NJ 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.       GS-23F-0116L 256-327-9162 HUNTSVILLE ,AL s
ENGINEERING SOLUTIONS & PRODUCTS LLC       GS-10F-0008V 571-375-1426 CHANTILLY ,VA o
ENGINEERING SYSTEMS & PLANNING, INC       GS-23F-0246M 256-830-5470 HUNTSVILLE ,AL s/d
ENRGIES, INC       GS-10F-0136T 256-683-3367 HUNTSVILLE ,AL s/dv
ENSCO, INC.       GS-23F-0272K 703.321.9000 SPRINGFIELD ,VA o
ENTERPRISE INFORMATION SERVICES, INCORPORATED       GS-00F-182CA 7037525527 VIENNA ,VA o
EPSILON SYSTEMS SOLUTIONS, INC.       GS-00F-0035N 619-702-1700 SAN DIEGO ,CA o
ESCIENCE AND TECHNOLOGY SOLUTIONS, INCORPORATED       GS-00F-124GA 301-429-0005 x106 NORTH CHARLESTON ,SC s/d/8a  
EXCELLENCE ENGINEERING, LLC       GS-00F-403GA 918-298-5500 TULSA ,OK s/w/wo/d/h
EXCET, INC.       GS-00F-004BA 703-919-0953 SPRINGFIELD ,VA s
EXPONENT, INC.       GS-23F-0390K 650-326-9400 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 s
FIELD MANAGEMENT SERVICES, INC.       47QRAA20D000W (212)628-6860 LOS ANGELES ,CA s    
FIRE & RISK ALLIANCE, LLC       47QRAA18D00CT 301-658-3060 CHICAGO ,IL s/d
FIVE STONES RESEARCH CORPORATION       GS-10F-0446X 256-975-0848 BROWNSBORO ,AL s/w/wo/ew/d/8a
FOXHOLE TECHNOLOGY, INC.       GS-00F-035GA (703) 291-8354 FAIRFAX ,VA s/dv
FRATELLO, INC.       GS-10F-0202X (540)596-0695 STEPHENS CITY ,VA s/w/wo  
FTS INTERNATIONAL, LLC       47QRAA19D0064 703-225-7660 DULLES ,VA s
G2 OPS, INC.       47QRAA18D0002 757-373-7368 VIRGINIA BEACH ,VA s/w/wo/ew/d
GAN CORPORATION       GS-10F-0085U 1-256-489-2471 HUNTSVILLE ,AL s
GANNETT FLEMING, INC.       GS-00F-114CA (703) 277-9505 CAMP HILL ,PA o
GAUSS MANAGEMENT RESEARCH AND ENGINEERING, INC.       GS-10F-0028W 385-205-6872 SOUTH OGDEN ,UT s/v
GBL SYSTEMS CORPORATION       47QRAA19D007F 805-987-4345 CAMARILLO ,CA s
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
GENERAL DYNAMICS INFORMATION TECHNOLOGY, INC.       GS-00F-057CA 401-845-3658 FAIRFAX ,VA o
GENERAL INFOMATICS-A SERVICE DISABLED OWNED VETERAN BUSINESS, INC.       47QRAA18D002D 7036505119 MCLEAN ,VA s/dv/d
GENERAL TECHNICAL SERVICES L.L.C.       47QRAA19D006Y 732-280-2022 WALL TOWNSHIP ,NJ s/w/wo
GENESIS ENGINEERING SOLUTIONS, INC.       GS-23F-0345K 301-552-0101 LANHAM ,MD s/d
GEOCENT, L.L.C.       47QRAA18D008N (504) 831-1900 METAIRIE ,LA s
GEOCONTROL SYSTEMS, INC.       GS-00F-115GA 281-451-4081 HOUSTON ,TX s/w/wo/ew/d/h
GEOENGINEERS, INC.       47QRAA18D00E3 (425) 861-6000 REDMOND ,WA o
GEOGRAPHIC INFORMATION SERVICES, INC.       47QRAA19D00BD 2057255802 BIRMINGHAM ,AL o
GEORGE CONSULTING, LTD.       GS-00F-384GA 843-471-1322 DANIEL ISLAND ,SC s
GEORGIA TECH APPLIED RESEARCH CORPORATION       GS-10F-0187T 404.894.6923 ATLANTA ,GA o
GET IT DONE (GID) SOLUTIONS LLC       GS-00F-282GA 2692756690 FREDERICKSBURG ,VA s/dv
GILBANE BUILDING COMPANY       GS-23F-0024R 703-312-7246 PROVIDENCE ,RI o
GLEASON RESEARCH ASSOCIATES INCORPORATED       GS-23F-0253M 2568837000 HUNTSVILLE ,AL s
GLOBAL C2 INTEGRATION TECHNOLOGIES LLC       47QRAA18D0067 702-333-2345 LAS VEGAS ,NV s/dv
GLOBAL ENGINEERING & TECHNOLOGY, INC.       47QRAA18D000R (305) 648-1102 MIAMI ,FL s/d
GLOBAL ENGINEERING SOLUTIONS, INC.       GS-10F-0160Y 301-216-2871 BETHESDA ,MD s/w/wo/ew/d
GLOBAL SCIENCE & TECHNOLOGY, INC.       GS-23F-0050L 301-474-9696 GREENBELT ,MD s/d
GLOBAL SYSTEMS TECHNOLOGIES, INC.       GS-10F-0461Y 215-579-8200 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    
GP STRATEGIES CORPORATION       GS-00F-0039N 443-367-9611 COLUMBIA ,MD o
GRAFTON-HILL, INCORPORATED       GS-00F-082DA (760) 576-9516 SPRINGFIELD ,VA s/v
GREENTREE GROUP, INC. THE       GS-00F-180CA 937-490-5512 DAYTON ,OH s
GROUP W INC.       GS-00F-069GA 703-752-5850 VIENNA ,VA s
GROVE RESOURCE SOLUTIONS, INC.       GS-10F-0502X 240-236-0800 FREDERICK ,MD o
GRYPHON TECHNOLOGIES, L.C.       GS-10F-0284Y 757.408.5673 WASHINGTON ,DC o
HAMILTON SUNDSTRAND SPACE SYSTEMS INTERNATIONAL, INC.       GS-10F-0439X 281.336.6353 HOUSTON ,TX o
HARRIS CORPORATION       GS-23F-0058M 321-729-2629 PALM BAY ,FL o
HASSETT & WILLIS ASSOCIATES, LLC       GS-10F-0156U 202-290-1911 WASHINGTON ,DC o
HATCH, JOHN M       47QRAA18D001M (425)466-0744 ARLINGTON ,TX s
HAWK INSTITUTE FOR SPACE SCIENCES, LLC       GS-00F-278GA 443-786-3418 POCOMOKE CITY ,MD s/dv/h
HDR ENGINEERING, INC.       GS-00F-152CA 303-754-4252 OMAHA ,NE o
HEBCO, INC.       47QRAA18D00F2 405-672-1461 OKLAHOMA CITY ,OK s/d
HEERY INTERNATIONAL, INC.       47QRAA19D00AP (404)946-2432 ATLANTA ,GA o
HEERY INTERNATIONAL, INC.       GS-23F-0168K 404-946-2432 ATLANTA ,GA o
HEXAGON US FEDERAL, INC.       47QRAA18D00A2 478-322-3258 HUNTSVILLE ,AL o
HIGHERECHELON, INC.       GS-00F-164GA 2567631931 HUNTSVILLE ,AL s/dv
HII MISSION DRIVEN INNOVATIVE SOLUTIONS INC.       GS-00F-020CA 703-539-3068 HUNTSVILLE ,AL o
HILL INTERNATIONAL, INC.       GS-23F-0035P 202-408-3030 WASHINGTON ,DC o
HODGES TRANSPORTATION, INC.       GS-23F-0062M 7756292000 SILVER SPRINGS ,NV s/h
HUKARIASCENDENT, INC.       GS-10F-029CA (720)833-4161 WHEAT RIDGE ,CO o  
HX5,, LLC       GS-00F-225GA 8503626551 FORT WALTON BEACH ,FL s/w/wo/dv
HYPERSOFT INC       GS-23F-0165P 636-947-8862, EXT.2 SAINT CHARLES ,MO s/w/wo
IAI, LLC       GS-23F-0076M 703-674-3112 CHANTILLY ,VA s/v
ICF INCORPORATED, L.L.C.       GS-00F-010CA 703-934-3632 FAIRFAX ,VA o
IDEAL INNOVATIONS INCORPORATED       GS-00F-345CA 571-480-5009 ARLINGTON ,VA s/dv
IESE SOLUTIONS       47QRAA19D00B4 310-982-0302 EL SEGUNDO ,CA s/w/wo/d
IGNITE FUELING INNOVATION, INC.       GS-10F-0107V 256-270-9023 HUNTSVILLE ,AL s/dv/d
INDUS TECHNOLOGY INC.       47QRAA18D00DR (619) 299-2555 EXT. SAN DIEGO ,CA s/dv
INDYNE, INC.       GS-23F-0096L 805-606-5954 STERLING ,VA o
INFORMATION AND INFRASTRUCTURE TECHNOLOGIES, INC.       GS-00F-031CA 703-478-7658 HERNDON ,VA s/v
INFORMATION SYSTEMS LABORATORIES, INC.       GS-23F-0060L 858-373-2717 VIENNA ,VA s
INNOVATIVE CONSULTING & MANAGEMENT SERVICES, LLC       47QRAA19D000D 3014444100 ROCKVILLE ,MD s/d/8a/h
INNOVATIVE IMAGING & RESEARCH CORP       47QRAA18D005Y 228-688-2452 STENNIS SPACE CENTE ,MS s/w/wo/ew
INNOVE LLC       GS-10F-202AA 210446-4501 SAN ANTONIO ,TX s/v/d
INSIGHT INTERNATIONAL TECHNOLOGY, LLC       47QRAA19D00BE (256) 551-0414 HUNTSVILLE ,AL s/dv/d
INTEGRATED SOLUTIONS FOR SYSTEMS, INC.       GS-00F-378GA 2566566684 HUNTSVILLE ,AL s
INTEGRATION INNOVATION, INC.       GS-00F-210CA 256-270-4872 HUNTSVILLE ,AL s
INTEK INC.       GS-00F-089GA 7034652200 ARLINGTON ,VA s
INTELLIGENCE, COMMUNICATIONS AND ENGINEERING, INC       GS-00F-0022Y 5204584321 SIERRA VISTA ,AZ o
INTELLISOLUTIONS, INC.       47QRAA18D000S 619-683-2139 SAN DIEGO ,CA s/w/wo
INTER COASTAL ELECTRONICS INC       GS-00F-0019Y 480-981-6898 MESA ,AZ s
INTERACTIVE PROCESS TECHNOLOGY, LLC       GS-00F-0002X 781-222-5589 BILLERICA ,MA o
INTERFUZE CORPORATION       GS-10F-0421Y 256-382-9715 HUNTSVILLE ,AL s
INTREPID, L.L.C.       GS-10F-014AA 256-705-6848 HUNTSVILLE ,AL s
INTUITIVE RESEARCH AND TECHNOLOGY CORPORATION       GS-23F-0343N 2569229300 HUNTSVILLE ,AL o
INVARIANT CORPORATION       GS-23F-0315P 256-885-9794 HUNTSVILLE ,AL s
INVICTUS INTERNATIONAL CONSULTING, LLC       47QRAA19D00C0 (703)647-2727 ALEXANDRIA ,VA o    
IRONARCH TECHNOLOGY LLC       47QRAA19D0043 703-942-5770 MCLEAN ,VA s/dv
IRONCLAD TECHNOLOGY SERVICES LLC       47QRAA20D000L (757)493-3572 VIRGINIA BEACH ,VA o    
IRONMOUNTAIN SOLUTIONS, INC.       GS-10F-0390Y 256-428-1922 HUNTSVILLE ,AL s/dv
ISPA TECHNOLOGY, LLC       GS-00F-232GA 703-822-1862 LITHIA ,FL s
ISSAC CORP       GS-10F-0233Y (719)325-9033 COLORADO SPRINGS ,CO s/dv  
ITSC SECURE SOLUTIONS, LLC       GS-00F-065GA 559-719-8040 FALLS CHURCH ,VA s/w/wo/h
J. F. TAYLOR, INC.       GS-23F-0005L 301-862-3939 LEXINGTON PARK ,MD o
JACKSON AND TULL, CHARTERED ENGINEERS       47QRAA18D00DJ 2405537005 WASHINGTON ,DC s/d
JACOBS ENGINEERING GROUP INC.       GS-00F-0025M (314)335-4144 ARLINGTON ,VA o  
JACOBS TECHNOLOGY INC.       GS-00F-038CA 931-455-6400 TULLAHOMA ,TN o
JAHN CORP       GS-23F-0193K (301)862-5241 LEXINGTON PARK ,MD s  
JAKTOOL LLC       GS-00F-369GA 609-664-2451 CRANBURY ,NJ s/w/wo/d
JANUS RESEARCH GROUP, INC.       GS-00F-310CA 7063649100 EVANS ,GA o
JARDON & HOWARD TECHNOLOGIES, INCORPORATED       GS-00F-0059M 407-381-7797 ORLANDO ,FL o
JAXON ENGINEERING AND MAINTENANCE, INC.       GS-10F-0447Y 505-983-4881 COLORADO SPRINGS ,CO s/w
JENSEN HUGHES, INC.       GS-00F-006CA 410-737-8677 BALTIMORE ,MD o
JMA SOLUTIONS LLC       47QRAA18D00GC 202-465-8245 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 8148233648 CLIFTON ,VA s/dv
JOHNSON, MIRMIRAN & THOMPSON, INC.       GS-00F-194CA 410-329-3100 HUNT VALLEY ,MD o
JOINT VENTURE SOLUTIONS (JVS) LLC       GS-00F-099GA (443)280-0698 MILLERSVILLE ,MD s/dv  
JTV NUCLEAR CONSULTANTS       47QRAA19D009T (865)607-9066 VIDALIA ,GA s/w/wo    
KAE CONSULTANTS, INC.       GS-00F-052GA (847)605-0080 SCHAUMBURG ,IL s/w    
KALMAN & COMPANY, INC.       GS-00F-343CA 7574614292 VIRGINIA BEACH ,VA o
KARBON ENGINEERING SERVICES, LLC       47QRAA19D00AW (844)470-8802 EDISON ,NJ s    
KBM ENTERPRISES, INC.       GS-23F-0001R 9314689233 HUNTSVILLE ,AL s/w/wo
KBRWYLE TECHNOLOGY SOLUTIONS, LLC       GS-00F-353CA (843)806-6727 COLUMBIA ,MD o  
KELLER-BLIESNER ENGINEERING, LLC       47QRAA18D004Q 435-753-5651 LOGAN ,UT s
KENIFIC GROUP INC, THE       47QRAA19D00C7 571-363-4002 FAIRFAX ,VA s/d
KENTCO CORPORATION       47QRAA20D000S (571)665-4199 HERNDON ,VA s/dv    
KEYLOGIC SYSTEMS, INC.       GS-00F-315CA 443-539-9062 MORGANTOWN ,WV o
KEYW CORPORATION, THE       GS-00F-001DA 703-889-1392 HANOVER ,MD o
KIHOMAC, INC.       GS-10F-0173T 7193935081 RESTON ,VA s/v/d
KIMLEY-HORN AND ASSOCIATES, INC.       GS-10F-0501X (919) 677-2000 RALEIGH ,NC o
KINETIC METRICS, LLC       47QRAA20D000K (703)772-4088 ALEXANDRIA ,VA s/d    
KODA TECHNOLOGIES INC.       47QRAA19D0081 2564686016 MADISON ,AL s/w/wo/d
KOKUA SUPPORT SERVICES CORPORATION       47QRAA19D0012 757-243-8462 NEWPORT NEWS ,VA s/d
KORD TECHNOLOGIES, INC.       GS-10F-0087Y 256-808-7608 HUNTSVILLE ,AL s/w/wo
LEE & ASSOCIATES LLC       GS-23F-0275R (256)852-7336 NEW MARKET ,AL s  
LEIDOS INNOVATIONS CORPORATION       GS-00F-242CA 301-452-5781 GAITHERSBURG ,MD o
LEIDOS, INC.       GS-00F-022CA (571) 526-7085 RESTON ,VA o
LEONARDO TECHNOLOGIES, INC.       GS-23F-0231R 7409682222X104 SAINT CLAIRSVILLE ,OH s
LINDAHL REED, INC.       47QRAA18D00GR 541-728-1102 REDMOND ,OR s/w/wo/ew
LINK TECHNOLOGIES INC       GS-00F-216CA 301-983-6878 GERMANTOWN ,MD s/w/wo
LINQUEST CORPORATION       GS-23F-0113S 323-924-1587 LOS ANGELES ,CA o
LJB INC       GS-00F-049CA (937) 259-5146 MIAMISBURG ,OH s
LJT & ASSOCIATES, INC.       GS-10F-0406S 4432832519 COLUMBIA ,MD s
LOCKHEED MARTIN CORPORATION       GS-23F-0150S 610-354-7693 KING OF PRUSSIA ,PA o
LOCKWOOD GROUP LLC, THE       GS-00F-349GA 443-327-7175 BELCAMP ,MD s/dv
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
LOGISTICS MANAGEMENT INSTITUTE       GS-00F-0026M 703-917-7176 MC LEAN ,VA o
LOGISTICS MANAGEMENT INSTITUTE       GS-00F-041GA 703-917-7176 MC LEAN ,VA o
LOGLINEAR GROUP, LLC       GS-00F-257DA 1-228-238-1496 WAVELAND ,MS s
LOUIS BERGER GROUP, INC., THE       47QRAA18D002R 202-303-2613 WASHINGTON ,DC o
LOUIS BERGER GROUP, INC., THE       GS-00F-0004L 202-303-2613 WASHINGTON ,DC o
LOYAL SOURCE GOVERNMENT SERVICES LLC       47QRAA18D008T 407-591-3088 ORLANDO ,FL o
LSINC CORPORATION       47QRAA18D00BC (937)505-3031 HUNTSVILLE ,AL s/w/wo/ew    
LYNKER TECHNOLOGIES LLC       GS-00F-125CA 703-431-5855 BOULDER ,CO s/d/h
MACAULAY-BROWN, INC       GS-00F-063CA 937-426-3421 DAYTON ,OH o
MADISON RESEARCH CORPORATION       GS-00F-021CA 2568647310 HUNTSVILLE ,AL o
MANAGEMENT SERVICES GROUP, INC.       GS-00F-285DA 757-468-8751 VIRGINIA BEACH ,VA s/w/wo/d
MANTECH ADVANCED SYSTEMS INTERNATIONAL, INC.       GS-00F-086CA 703-218-6440 HERNDON ,VA o
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MANUFACTURING TECHNIQUES, INC.       47QRAA18D00AA 540.658.2720 LORTON ,VA s/w/wo
MARINE DESIGN AND OPERATIONS, INC.       GS-23F-0233S (908)497-0599 COLONIA ,NJ s  
MARINE SYSTEMS CORPORATION       47QRAA19D006B 6175423345 X112 BOSTON ,MA s
MARINE SYSTEMS CORPORATION       GS-23F-0342K 617-542-3345 BOSTON ,MA s
MASON LIVESAY SCIENTIFIC, LLC       47QRAA19D00AJ 865-294-4368 OAK RIDGE ,TN s/w/wo/d
MAYVIN, INC.       GS-10F-0280Y 7037501794 ANNANDALE ,VA s/w/wo
MCCONNELL JONES LANIER & MURPHY LLP       GS-10F-0117U 713-968-1611 HOUSTON ,TX s/d/8a
MCHENRY MANAGEMENT GROUP, INC., THE       GS-10F-0239U 757.410.1839 CHESAPEAKE ,VA s/v
MCLAUGHLIN RESEARCH CORPORATION       GS-23F-0077M 401-849-4010 NEW LONDON ,CT s
MCR FEDERAL, LLC       GS-00F-123CA 703-506-4600 MCLEAN ,VA s
MEDIADYNE, LLC       47QRAA18D00DY 703-433-2513 GREAT FALLS ,VA s/v
MEI TECHNOLOGIES, INC.       GS-00F-021DA 281-823-6278 HOUSTON ,TX s/dv
MELE ASSOCIATES, INC.       GS-00F-243CA (240)453-6975 ROCKVILLE ,MD s/v
METRON, INCORPORATED       GS-00F-166DA 703-326-2870 RESTON ,VA s
MICHAEL BAKER GLOBAL SERVICES, LLC       GS-23F-0063L 7036763271 RESTON ,VA o
MICHAEL BAKER INTERNATIONAL, INC.       GS-00F-0032M 703-483-0029 ALEXANDRIA ,VA o
MICROCOM DESIGN, INC.       GS-10F-0213W 410-771-1070 COCKEYSVILLE ,MD s
MICROWAVE PACKAGING TECHNOLOGY, INC.       47QRAA18D000T 310-980-3039 FULLERTON ,CA s/h
MILLENNIUM CORPORATION       GS-10F-0141W 703-436-1346 ARLINGTON ,VA s/dv/d/8a
MILLENNIUM ENGINEERING AND INTEGRATION COMPANY       GS-23F-0252K 7034137765 ARLINGTON ,VA s/v
MINDMESH INC       47QRAA19D004B 713-489-7798 HOUSTON ,TX s/w/wo/8a
MINO MARINE, L.L.C.       GS-00F-249GA 504-218-8162 JEFFERSON ,LA s
MISSION1ST GROUP, INC       GS-10F-102BA 6095201900 ARLINGTON ,VA o
MISSIONFOCUS LLC       GS-10F-149AA 703-291-6721 ALEXANDRIA ,VA s
MLT SYSTEMS LLC       GS-10F-0168W 5403186383 STAFFORD ,VA s/dv
MOBIUS CONSULTING, LLC       GS-00F-088GA (571)402-4012 ALEXANDRIA ,VA s/w/wo/ew/h  
MODERN TECHNOLOGY SOLUTIONS, INC.       GS-23F-0033L 703-564-3820 ALEXANDRIA ,VA o
MONTE SANO RESEARCH CORPORATION       47QRAA18D006B 256-705-3567 HUNTSVILLE ,AL s
MORSECORP, INC       47QRAA18D00A1 617-314-7509 CAMBRIDGE ,MA s
MPR ASSOCIATES, INC.       47QRAA19D0078 703-519-0200 ALEXANDRIA ,VA o
MS TECHNOLOGY, INC.       GS-10F-102CA 865-298-1419 OAK RIDGE ,TN s
MSI DEFENSE SOLUTIONS, LLC       GS-10F-180BA 704-660-8348 MOORESVILLE ,NC s
MTA, INC.       GS-23F-0039P 256-704-8149 HUNTSVILLE ,AL s/w/wo
MTI SYSTEMS, INC.       GS-00F-007BA (518)894-2538 GREENBELT ,MD s/w/wo/d  
NANORACKS, LLC       47QRAA18D004R 832-632-7754 WEBSTER ,TX s
NATIONAL TECHNOLOGIES ASSOC INC       GS-00F-183CA 703-941-3695 Ext. 12 CALIFORNIA ,MD o
NAVARRO RESEARCH AND ENGINEERING, INC.       GS-00F-0092N 8652209650 OAK RIDGE ,TN s/w/wo/d
NAVIGATOR DEVELOPMENT GROUP, INC.       GS-00F-0044N 334-347-7612 ENTERPRISE ,AL s/dv
NAVIGATOR INTERNATIONAL, LLC       GS-00F-393GA 334-348-1550 HUNTSVILLE ,AL s/dv
NCI INFORMATION SYSTEMS, INC.       GS-00F-263CA 703-707-6626 RESTON ,VA o
NDI ENGINEERING COMPANY       GS-23F-0161M 856-848-0033 THOROFARE ,NJ s
NELSON ENGINEERING CO.       GS-00F-324CA 3214491128 MERRITT ISLAND ,FL s
NETCENTRIC TECHNOLOGY, LLC       47QRAA19D00AU 732-544-0888 WALL ,NJ s/d
NETWORK SENSING TECHNOLOGIES, LLC       GS-00F-006HA 850-684-0033 X101 FORT WALTON BEACH ,FL s
NEWPORT PARTNERS, THE, LLC       GS-00F-007CA 301-889-0017 DAVIDSONVILLE ,MD s
NEXAGEN NETWORKS INC       GS-00F-066GA 571-247-8129 MORGANVILLE ,NJ s/w/d
NLOGIC, LLC       GS-00F-239CA 256-704-2513 HUNTSVILLE ,AL s
NOETIC STRATEGIES, INC.       47QRAA18D00H6 (610)256-0427 HUNTSVILLE ,AL s/w/wo/ew/d/h    
NORTHROP GRUMMAN SYSTEMS CORPORATION       GS-00F-128CA 703-713-4586 HERNDON ,VA o
NOU SYSTEMS, INC.       GS-00F-143DA 256-327-5541 HUNTSVILLE ,AL s/w/wo
NTA, INC.       GS-10F-0132W 256-880-3510 EXT 101 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 863-604-6166 HUNTSVILLE ,AL s
OCEANEERING INTERNATIONAL, INC.       GS-00F-165DA 281-228-5302 HOUSTON ,TX o
OCH TECHNOLOGIES, LLC       47QRAA19D005Q 7038643479 LEESBURG ,VA s/d/8a
ODYSSEY SPACE RESEARCH L L C       GS-23F-0382P 281-862-7819 HOUSTON ,TX s/wo
ODYSSEY SYSTEMS CONSULTING GROUP, LTD.       GS-10F-0254U 781-245-0111 WAKEFIELD ,MA o
OHIO TECHNOLOGY CLEARINGHOUSE, INCORPORATED       GS-10F-0038W 2564892623 HUNTSVILLE ,AL s
OLD DOMINION UNIVERSITY RESEARCH FOUNDATION       GS-10F-097CA (202)480-2891 NORFOLK ,VA o  
ONEIDA TOTAL INTEGRATED ENTERPRISES, LLC       GS-00F-0006L 4142574200 MILWAUKEE ,WI s/d/8a
ORBIS SIBRO, INC.       GS-23F-0185N 843-971-9390 X226 CHARLESTON ,SC s/w
ORGANIZATIONAL STRATEGIES, LLC       GS-00F-145GA 703-554-1650 TYSONS ,VA o
OST, INC.       47QRAA18D0090 7034629700 WASHINGTON ,DC o
OVERLOOK SYSTEMS TECHNOLOGIES, INC.       GS-10F-0100T (703)893-1411 VIENNA ,VA s  
P E SYSTEMS, INC.       GS-00F-097CA 703-246-9663 FAIRFAX ,VA s/dv
P3I, INCORPORATED       GS-10F-044AA 330-853-6214 HOPKINTON ,MA s/w/wo/v
PAGNOTTA ENGINEERING INC.       47QRAA19D0016 (859)572-4482 EXTON ,PA s    
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
PARSONS GOVERNMENT SERVICES INC.       GS-00F-0005R 210-477-1616 PASADENA ,CA o
PARTNER ASSESSMENT CORPORATION       47QRAA18D00EE 773-840-5070 TORRANCE ,CA o
PCCI, INC.       47QRAA18D00HE 703-229-1110 ALEXANDRIA ,VA o
PD SYSTEMS, INC.       GS-00F-331CA (703)778-7699 SPRINGFIELD ,VA o  
PEOPLETEC, INC.       GS-10F-0114T (256)319-3803 HUNTSVILLE ,AL s/w/wo  
PERATON INC.       GS-23F-0190L 301-867-2985 HERNDON ,VA o
PERSPECTA AEROSPACE & DEFENSE INC.       GS-23F-0207P 256-971-7920 HUNTSVILLE ,AL o
PINNACLE SOLUTIONS, INC.       GS-00F-0017X 256-429-9164 HUNTSVILLE ,AL o
PIONEER TECHNOLOGIES CORPORATION       GS-10F-0358T 702-932-7690 NICEVILLE ,FL s/v
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  
PPT SOLUTIONS, INC.       GS-00F-422GA 2563190423 HUNTSVILLE ,AL s
PREFERRED PROGRAM SOLUTIONS INC       47QRAA18D009S 256-350-5983 MADISON ,AL s/dv
PRESCIENT EDGE CORPORATION       47QRAA18D00CU 571-341-8031 MC LEAN ,VA s/v
PRETALEN LTD       GS-00F-229GA 4196595914 DAYTON ,OH s/w/wo/d
PRIMAL INNOVATION, LLC       GS-10F-049CA (407)697-3161 LAKE MARY ,FL s/dv  
PRKK, L.L.C.       47QRAA18D006N 3032463377 STUART ,FL s
PRODUCTIVITY APEX, INC.       GS-10F-0266U (407) 384-0800 WINTER PARK ,FL s/w/wo/d/8a
PROFESSIONAL PROJECT SERVICES, INC.       GS-00F-112CA 865-220-4377 OAK RIDGE ,TN o
PROJECT ENHANCEMENT CORPORATION       GS-00F-0004T 240-686-3059 GERMANTOWN ,MD s
PROJECT SUPPORT SERVICES, INC.       GS-00F-108CA 202-327-1119 SUMMERFIELD ,FL o
PROMODEL CORPORATION       GS-00F-421GA 845-499-3582 OREM ,UT s
PROSOURCE CONSULTING, L.L.C.       GS-10F-0123T (703)754-7400 GAINESVILLE ,VA s/w/wo/d  
PURVIS SYSTEMS INCORPORATED       GS-10F-0191X 401-845-8401 QUEENS VILLAGE ,NY s
QED SYSTEMS LLC       47QRAA18D00A9 4433604504 ABERDEEN PROVING GR ,MD s
QED SYSTEMS, INC.       GS-00F-059CA 757-490-5021 VIRGINIA BEACH ,VA o
QTEC, INC       GS-23F-0255M 256 8837994 X 101 HUNTSVILLE ,AL s/wo
QUALIS CORPORATION       GS-10F-0025U 256-327-3449 HUNTSVILLE ,AL s/w/d
QUALITY INNOVATION, INC.       47QRAA18D000E 512-246-4936 AUSTIN ,TX s/dv/h
QUANTECH SERVICES INC.       GS-00F-282CA 781-457-0331 LEXINGTON ,MA o
QUANTITATIVE SCIENTIFIC SOLUTIONS, LLC       47QRAA19D004D 703-468-1277 ARLINGTON ,VA s
QUANTITECH INC       GS-23F-0320N 2567990669 HUNTSVILLE ,AL o
QUANTUM RESEARCH INTERNATIONAL, INC.       47QRAA19D00A9 (256)971-1800 HUNTSVILLE ,AL s    
QUANTUM RESEARCH INTERNATIONAL, INC.       GS-23F-0064K 256-971-1800 HUNTSVILLE ,AL s
QUASARS INCORPORATED       GS-00F-106GA (202) 863-4431 ELLICOTT CITY ,MD s/w/wo
R C M TECHNOLOGIES, INC.       47QRAA18D00F0 301-986-1412 PENNSAUKEN ,NJ o
R.P. GATTA, INC.       GS-10F-075CA 330-562-2288 AURORA ,OH s
R2C LIMITED LIABILITY COMPANY       GS-00F-306GA 256-799-2363 HUNTSVILLE ,AL s/dv
RADIANCE TECHNOLOGIES, INC.       47QRAA19D008B 256-489-8960 HUNTSVILLE ,AL s
RADIANCE TECHNOLOGIES, INC.       GS-23F-0147L 256-489-8966 HUNTSVILLE ,AL s
RADIANTBLUE TECHNOLOGIES, INC.       GS-10F-0046V 571-521-8840 COLORADO SPRINGS ,CO o
RAYTHEON COMPANY       GS-00F-177CA (571) 250-1082 WALTHAM ,MA o
RE/SPEC INC.       GS-00F-0078N 6053946400 RAPID CITY ,SD o
RED CANYON SOFTWARE, INC       GS-00F-044GA 3038640556 DENVER ,CO s/v/h
REDHORSE CORPORATION       GS-00F-0013Y 619-241-4609 SAN DIEGO ,CA s/dv/d/8a
REED ENTERPRISE CONSULTING LLC       47QRAA18D00EP 2566040975 HUNTSVILLE ,AL s/dv/h
RESEARCH TRIANGLE INSTITUTE       GS-00F-354CA 919-541-6634 RESEARCH TRIANGLE P ,NC o
RICARDO DEFENSE, INC.       GS-10F-0212T 805-882-1884 X110 GOLETA ,CA s
RIGGINS COMPANY, L.C.       47QRAA18D005R 757-826-0525 HAMPTON ,VA s
RIVERSIDE RESEARCH INSTITUTE       47QRAA19D00CN 937-427-7009 NEW YORK ,NY o
RIVERSIDE RESEARCH INSTITUTE       GS-23F-0134L 212-502-1724 NEW YORK ,NY o
RIVERSIDE TECHNOLOGY, INC.       GS-00F-0026P 9702149419 FORT COLLINS ,CO o
ROBERT AND COMPANY       GS-00F-210GA 4045774000 ATLANTA ,GA s/dv
ROCK ENGINEERING LLC       GS-00F-319GA (860) 841-7106 SOUTH WINDSOR ,CT s
ROUNDTABLE DEFENSE, LLC       GS-10F-0231Y 5403188247 FREDERICKSBURG ,VA s/dv
S2 ANALYTICAL SOLUTIONS, LLC       47QRAA19D006L 571-306-0715 HERNDON ,VA s/v
S5 SOLUTIONS, INC.       47QRAA19D00CT (425)232-6277 MUKILTEO ,WA s    
SA TECHNICAL SERVICES, INC.       47QRAA19D00BL (850)613-6085 NICEVILLE ,FL s/dv
SABRE SYSTEMS, INC.       GS-00F-178CA 215-957-5222 WARRINGTON ,PA o
SAYRES AND ASSOCIATES CORPORATION       GS-00F-027CA 202-355-0922 WASHINGTON ,DC s/dv
SCAVET TECHNOLOGIES LLC       GS-10F-087BA 856-218-9496 SEWELL ,NJ s/dv
SCHAFER GOVERNMENT SERVICES, LLC       47QRAA19D0021 7035166752 ARLINGTON ,VA o
SCHAFER GOVERNMENT SERVICES, LLC       GS-23F-0176L 703-516-6044 ARLINGTON ,VA o
SCIENCE AND TECHNOLOGY ASSOCIATES, INC.       47QRAA19D0082 703-522-5123 ARLINGTON ,VA s
SCIENCE AND TECHNOLOGY CORPORATION       GS-23F-0184L 757-766-5819 HAMPTON ,VA s
SCIENCE APPLICATIONS INTERNATIONAL CORPORATION       GS-00F-002CA 757.470.2828 RESTON ,VA o
SCIENCE SYSTEMS AND APPLICATIONS, INC.       GS-23F-0102N 301-867-2122 LANHAM ,MD s
SCIENTIFIC & BIOMEDICAL MICROSYSTEMS, LLC       GS-10F-0497X (410) 766-4700 GLEN BURNIE ,MD s/w
SCIENTIFIC RESEARCH CORPORATION       GS-23F-0125L 770-989-9466 ATLANTA ,GA o
SCITECH SERVICES, INC. GS-02F-0259X (443) 303-3249 HAVRE DE GRACE ,MD s
SDS INTERNATIONAL, INC.       GS-00F-0077M 703-553-7533 FREDERICKSBURG ,VA s/dv
SELECTTECH SERVICES CORPORATION       GS-23F-0283L 9374389905 CENTERVILLE ,OH s/w/wo
SELF TECHNOLOGIES, INC.       47QRAA19D001D 256-535-9517 OWENS CROSS ROADS ,AL s/w/wo
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-193CA 703.939.6671 HERNDON ,VA o
SETTY & ASSOCIATES, LTD.       GS-23F-0111S 703-691-2115 FAIRFAX ,VA s/d
SEVATEC INC.       GS-10F-0142W 703-961-1818, EXT. 1 FAIRFAX ,VA o
SGT, LLC       47QRAA18D009P (301) 486-3178 GREENBELT ,MD o
SHARMA & ASSOCIATES INC       GS-10F-0027T 708-588-9871 HINSDALE ,IL s/d
SIGMA SCIENCE, INC.       47QRAA18D005Q 505-389-2205 ALBUQUERQUE ,NM s/d/8a
SIGMA SPACE LLC       GS-00F-175GA 301-552-6027 LANHAM ,MD o
SIGMATECH, INC.       GS-00F-060CA 256-319-9212 HUNTSVILLE ,AL s
SIGNALINK, INC       GS-00F-038GA 2567156744 MADISON ,AL s/w/wo/v
SIGNATURE SCIENCE, LLC       GS-00F-105CA (512) 533-2030 AUSTIN ,TX o
SIGNATURE SOLUTIONS, INC.       GS-00F-207GA 2565081961 HUNTSVILLE ,AL s
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 703-597-3760 FALLS CHURCH ,VA s
SOBRAN, INC.       GS-00F-220CA 703-352-9511 DAYTON ,OH o
SOL ENGINEERING SERVICE LLC       GS-00F-223GA 601-961-1415 JACKSON ,MS s/d/h
SOLERS INC.       47QRAA19D001B 7035260001 ARLINGTON ,VA s
SONALYSTS, INC.       GS-00F-351CA 860-326-3652 WATERFORD ,CT o
SOUTHERN RESEARCH INSTITUTE       GS-10F-0185Y 2055812873 BIRMINGHAM ,AL o
SOUTHWEST RESEARCH INSTITUTE       GS-23F-0006M 210-522-2238 SAN ANTONIO ,TX o
SPACE METRICS, INC.       GS-00F-299GA 202-465-8263 WASHINGTON ,DC s/d
SPACE SYSTEMS INTEGRATION, LLC       47QRAA20D001A (703)380-9376 GREAT FALLS ,VA s    
SPACEFLIGHT, INC       GS-00F-036DA 866-204-1707 SEATTLE ,WA s
SPECIAL AEROSPACE SERVICES       GS-10F-0456X 3036251010 BOULDER ,CO s/w/wo/ew/d/8a
SPECTRUM COMM INC.       GS-00F-318CA 7572247500 NEWPORT NEWS ,VA s/v
SPORIAN MICROSYSTEMS INC       47QRAA18D00BN 303-516-9075 LAFAYETTE ,CO s
SRA INTERNATIONAL, INC.       GS-00F-256CA 571.446.4017 CHANTILLY ,VA o
SRC, INC.       47QRAA19D005N 315-452-8594 NORTH SYRACUSE ,NY o
SRC, INC.       GS-00F-0019L 315-452-8594 NORTH SYRACUSE ,NY o
STANTEC CONSULTING SERVICES INC.       47QRAA19D000Q 916-418-8338 BROOMFIELD ,CO o
STANTEC CONSULTING SERVICES INC.       GS-00F-0040L 615-238-2733 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/w/wo/ew
STELLAR SOLUTIONS, INC.       47QRAA18D00FQ 650-473-9866 PALO ALTO ,CA o
STELLAR SOLUTIONS, INC.       GS-23F-0225K 703-657-2734 PALO ALTO ,CA s/w/wo
STG, INC.       GS-00F-234CA 7036912480 RESTON ,VA o
STRATA-G SOLUTIONS, INC.       GS-10F-0287W 2567054316 HUNTSVILLE ,AL s
STRATEGIC ALLIANCE BUSINESS GROUP LLC       GS-10F-0316P 7032865026 FAIRFAX ,VA s/w/wo/ew/dv
STRATEGIC ANALYSIS, INC.       GS-00F-342CA (703) 527-5410 ARLINGTON ,VA o
STRATEGIC MANAGEMENT SOLUTIONS, LLC       47QRAA19D008M (505)975-5201 ALBUQUERQUE ,NM s    
STRATEGIC TECHNOLOGY INSTITUTE INC       GS-00F-164CA 3017707077 ROCKVILLE ,MD s/d
SUMARIA SYSTEMS, INC.       GS-00F-197CA 978-739-4200 DANVERS ,MA s
SUMMIT TECHNICAL SOLUTIONS LLC       GS-10F-0347T (719)309-6312 COLORADO SPRINGS ,CO s/w/wo/v  
SURVICE ENGINEERING COMPANY, LLC, THE       GS-23F-0012M 410-273-7722 BELCAMP ,MD o
SUSQUEHANNA VALLEY ENGINEERING GROUP, INC.       47QRAA18D003V 717-885-5532 DALLASTOWN ,PA s
SYMVIONICS, INC       GS-23F-0357N 6263051400 ARCADIA ,CA s
SYNEREN TECHNOLOGIES, CORPORATION       47QRAA18D005W 3018300529 ARLINGTON ,VA s/w/wo/ew/d
SYNTEK TECHNOLOGIES INC.       GS-23F-0370K 703-522-1025 FAIRFAX ,VA s/w/wo
SYSTEM DYNAMICS INTERNATIONAL INCORPORATED       GS-23F-0033P 256-895-7153 HUNTSVILLE ,AL s/w/wo
SYSTEM STUDIES & SIMULATION, INC       47QRAA19D005Y 256-539-1700 X1117 HUNTSVILLE ,AL s/w/wo
SYSTEM STUDIES & SIMULATION, INC       GS-00F-0037P 256-539-1700 X124 HUNTSVILLE ,AL s/w/wo
SYSTEMATIC MANAGEMENT SERVICES, INC.       GS-00F-241CA 3013530072 FREDERICK ,MD s
SYSTEMS ENGINEERING ASSOCIATES INC       GS-23F-0117P 310-787-9800 TORRANCE ,CA s
SYSTEMS KINETICS INTEGRATION       GS-00F-288CA 4435347723 MARSTONS MILLS ,MA s/dv
SYSTEMS PLANNING AND ANALYSIS, INC.       GS-00F-186CA 703-399-7017 ALEXANDRIA ,VA o
SYSTEMS TECHNOLOGIES, INC.       GS-00F-0002U 732-571-6400 WEST LONG BRANCH ,NJ o
SYSTEMS TECHNOLOGY FORUM, LTD.       GS-00F-148CA 540.899.3536 FREDERICKSBURG ,VA s/v
TAURI GROUP, INC., THE       GS-00F-0006V 571-303-2153 ALEXANDRIA ,VA o
TEAMWORKNET, INC       GS-23F-0182R 8633271080 LAKELAND ,FL s
TEC-MASTERS INC.       GS-00F-0004X 256-721-6619 HUNTSVILLE ,AL s/d
TECHFLOW, INC.       GS-10F-005AA 858-412-8004 SAN DIEGO ,CA o
TECHNI-CORE ENGINEERING INC       GS-00F-0036M (256) 704-0234 X216 HUNTSVILLE ,AL s/w/wo
TECHNOLOGY ASSOCIATES, INC.       GS-00F-020GA (504)282-6166 NEW ORLEANS ,LA s/d    
TECHNOLOGY SECURITY ASSOCIATES, INC.       GS-00F-171GA 301-866-0295 X330 CALIFORNIA ,MD s/dv
TECHNOLOGY SERVICE CORPORATION       GS-23F-0240S (301)565-0673 ARLINGTON ,VA o  
TECHSOURCE, INC.       GS-00F-003DA 5059881726 LOS ALAMOS ,NM s
TEKLA RESEARCH, INC.       GS-10F-073AA 7034922620 FREDERICKSBURG ,VA s/dv
TELEDYNE BROWN ENGINEERING, INC.       GS-00F-155CA 256-726-1211 HUNTSVILLE ,AL o
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
THORNTON TOMASETTI, INC.       GS-23F-0185L 703-608-4414 NEW YORK ,NY o
TIAX LLC       GS-23F-0064L (781)879-1286 LEXINGTON ,MA s  
TIGER INNOVATIONS, INC.       GS-00F-139GA (703)435-2980 ARLINGTON ,VA s  
TIME SOLUTIONS, LLC       GS-00F-145CA 7575495707 CHESAPEAKE ,VA s/d/8a
TM CAPTURE SERVICES, LLC       47QRAA19D001Z 9374262596 BEAVERCREEK ,OH s/w/wo/ew/d/8a
TOLLIVER GROUP, INC., THE       GS-00F-0013W 407-718-1847 WINTER PARK ,FL s/dv
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
TOYON RESEARCH CORPORATION       GS-23F-0041P (805)968-6787 GOLETA ,CA s
TRANSYSTEMS CORPORATION       47QRAA19D001C 510-835-7254 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 s/w/wo
TRIDENTIS, PLLC       GS-10F-0462Y 5712430870 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 256-898-3430 HUNTSVILLE ,AL s
TROY 7, INC.       GS-00F-202GA 256-799-7706 HUNTSVILLE ,AL s/w/wo
TSM CORPORATION       GS-00F-284CA 4077308617 RESTON ,VA o
TUBA GROUP, INC.       GS-00F-222CA 7034179410 FALLS CHURCH ,VA s/d/8a
TYVAK NANO-SATELLITE SYSTEMS, INC.       47QRAA18D00DG 949-753-1020 IRVINE ,CA s
UNIFIED BUSINESS TECHNOLOGIES, INC.       GS-10F-0230X 248-588-1781 TROY ,MI s/w/wo/ew/d
UNIVERSAL CONSULTING SERVICES, INC       GS-00F-019CA 703-591-5100 FAIRFAX ,VA o
UNIVERSAL SOLUTIONS INTERNATIONAL, INCORPORATED       47QRAA19D002G (757) 563-3846 NEWPORT NEWS ,VA o
UNIVERSAL TECHNICAL RESOURCE SERVICES, INC.       47QRAA19D009N 856-438-1114 CHERRY HILL ,NJ o
UNIVERSAL TECHNICAL RESOURCE SERVICES, INC.       GS-00F-0086M 856-667-6770 CHERRY HILL ,NJ s
UNIVERSITY OF CENTRAL FLORIDA BOARD OF TRUSTEES, THE       GS-00F-413GA 407-882-1168 ORLANDO ,FL o
UNIVERSITY OF DAYTON       GS-23F-0143R 937-229-2919 DAYTON ,OH o
URS GROUP, INC.       GS-00F-188CA 210-253-7531 SAN ANTONIO ,TX o
USFALCON, INC.       GS-00F-322GA 9194591955 CARY ,NC s/dv
UTAH STATE UNIVERSITY RESEARCH FOUNDATION       GS-23F-0046P 435-713-3060 NORTH LOGAN ,UT o
VALKYRIE ENTERPRISES, LLC       47QRAA18D00DP 7579622545 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 757-220-0500 WILLIAMSBURG ,VA o
VANGUARD RESEARCH, INC.       GS-23F-0210K (703)416-0400 SPRINGFIELD ,VA s  
VANTAGE SYSTEMS, INC.       GS-00F-313GA (301)459-6007 LANHAM ,MD o    
VECTOR RESOURCE, INC       GS-00F-0004U 703-615-1041 ENGLEWOOD ,FL s/w
VECTRUS MISSION SOLUTIONS CORPORATION       GS-00F-050CA 571-481-2038 ALEXANDRIA ,VA o
VELOS LLC       47QRAA18D00G6 703-822-5777 PRINCESS ANNE ,MD s/h
VENTURI, LLC       GS-00F-044CA 256-705-2019 HUNTSVILLE ,AL s/d
VERITY INTEGRATED SYSTEMS, INC.       GS-00F-321GA 256-489-5680 HUNTSVILLE ,AL s/w/wo/ew/d
VERSA ENGINEERING & TECHNOLOGY, INC.       GS-00F-385GA 925-784-3730 CONCORD ,CA s/d
VERSAR, INC.       47QRAA18D00F7 703-642-6733 SPRINGFIELD ,VA o
VERSAR, INC.       GS-00F-0017L (703)642-6733 SPRINGFIELD ,VA s  
VICTORY SOLUTIONS, INC.       GS-10F-0011U 256-799-2615 HUNTSVILLE ,AL s/w/wo/dv
VISION CENTRIC INC.       GS-10F-0034U 256-830-0042 MADISON ,AL s/dv/d/8a
VISIONARY PRODUCTS, INC.       47QRAA19D008Y 801-260-4010 DRAPER ,UT s
VSE CORPORATION       GS-00F-213CA 703-329-4236 ALEXANDRIA ,VA o
VT AEPCO INC.       GS-23F-0191N 7572170724 HUNTSVILLE ,AL o
W R SYSTEMS LTD.       GS-00F-317GA 703-934-0200 FAIRFAX ,VA o
WAVELINK, INC.       GS-10F-0397Y 256-776-7216 HUNTSVILLE ,AL s/w/wo
WHITNEY, BRADLEY & BROWN INC.       GS-00F-297CA 7034486081 RESTON ,VA o
WILLBROOK SOLUTIONS, INC.       GS-10F-0299V 2564895820 EXT 107 HUNTSVILLE ,AL s/w/wo
WILLOWVIEW CONSULTING, LLC       GS-10F-0315V (208)250-0211 EAGLE ,ID s/w/wo/d    
WINDMILL INTERNATIONAL, INC.       GS-23F-0277L 6038216828 NASHUA ,NH s/v
WJAB ENTERPRISES, INC.       47QRAA19D0099 8105161157 BLOOMFIELD HILLS ,MI s/w/wo
WOOD ENVIRONMENT & INFRASTRUCTURE SOLUTIONS, INC.       GS-00F-314CA 610-877-6021 BLUE BELL ,PA o
WOOLPERT, INC.       GS-00F-0038N 937-531-1309 DAYTON ,OH o
WPL, INC.       GS-10F-0187X 310-546-4099 MANHATTAN BEACH ,CA s
WSP USA INC.       47QRAA19D003Q 217-649-8754 NEW YORK ,NY o
WYLE LABORATORIES, INC.       GS-00F-014DA 301-863-4415 TORRANCE ,CA o
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XCEL ENGINEERING, INC.       GS-10F-0211P 8657668542 OAK RIDGE ,TN s/dv
YANG ENTERPRISES, INC.       GS-10F-0135Y 4073657374 OVIEDO ,FL s/w/wo/d
YETISPACE, INC.       47QRAA19D001W 2566827645 HUNTSVILLE ,AL s
YORKTOWN SYSTEMS GROUP, INC.       47QRAA19D0030 8774060262 HUNTSVILLE ,AL o
ZANTECH IT SERVICES, INC.       47QRAA19D004L 7032861393 TYSONS CORNER ,VA o
ZEL TECHNOLOGIES, LLC       GS-23F-0197K 757 722 5565 HAMPTON ,VA s/v