GSA Federal Acquisition Service
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MAS Multiple Award Schedule
Professional Services - Technical and Engineering Services (non-IT)
Category Description
541330ENG Engineering Services Services include: applying physical laws and principles of engineering in the design, development, and utilization of machines, materials, instruments, processes, and systems. Services may involve any of the following activities: provision of advice, concept development, requirements analysis, preparation of feasibility studies, preparation of preliminary and final plans and designs, provision of technical services during the construction or installation phase, inspection and evaluation of engineering projects, and related services.

NOTE: Services under this SIN cannot include architect-engineer services as defined in the Brooks Act and FAR Part 2, or construction services as defined in FAR Parts 2 and 36.
950 contractors

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ZENETEX, LLC GS-35F-0047U 202-316-1588 HERNDON ,VA s
ZARI CONSULTING GROUP, INC. GS-00F-320GA (888)600-5226 PETALUMA ,CA s  
ZANTECH IT SERVICES, INC. 47QRAA19D004L (703)286-1393 TYSONS CORNER ,VA o  
YORKTOWN SYSTEMS GROUP, INC. 47QRAA19D0030 877-406-0262 HUNTSVILLE ,AL o
YETISPACE, INC. 47QRAA19D001W 2566827645 HUNTSVILLE ,AL s
YANG ENTERPRISES, INC. GS-10F-0135Y 407 365 7374 OVIEDO ,FL s/w/wo/d
XCEL ENGINEERING, INC. GS-10F-0211P 865-481-3200 OAK RIDGE ,TN s/dv
X TECHNOLOGIES, INC. 47QRAA18D00EY 2102986037 SAN ANTONIO ,TX s/d
WYLE LABORATORIES, INC.       GS-00F-200CA 2569716126 LEXINGTON PARK ,MD o
WSP USA SOLUTIONS INC. 47QRAA18D002R 202-303-2613 WASHINGTON ,DC o
WSP USA INC. 47QRAA19D003Q (212)465-5023 NEW YORK ,NY o  
WPL, INC.       GS-10F-0187X 310-546-4099 MANHATTAN BEACH ,CA s
WORLDWIDE COUNTER THREAT SOLUTIONS, LLC 47QRAA19D00CM 703-412-9394 FREDERICKSBURG ,VA s/dv
WOOLPERT, INC. GS-00F-0038N 937-531-1309 DAYTON ,OH o
WOOD ENVIRONMENT & INFRASTRUCTURE SOLUTIONS, INC. GS-00F-314CA (610)877-6109 BLUE BELL ,PA o  
WJAB ENTERPRISES, INC. 47QRAA19D0099 (810)516-1157 BLOOMFIELD HILLS ,MI s/w/wo  
WILLOWVIEW CONSULTING, LLC GS-10F-0315V 2082500211 EAGLE ,ID s/w/wo/d
WILLBROOK SOLUTIONS, INC. GS-10F-0299V 256.679.0436 HUNTSVILLE ,AL s/w/wo
WHITNEY, BRADLEY & BROWN INC. GS-00F-297CA 7034486081 RESTON ,VA o
WESTWATER ENGINEERING, INC. 47QRAA20D002M 9702417076 GRAND JUNCTION ,CO s/w/wo/ew
WAVELINK, INC. GS-10F-0397Y 256-776-7216 HUNTSVILLE ,AL s/w/wo
WARRANT TECHNOLOGIES LLC 47QRAA19D000G 8123616721 BLOOMINGTON ,IN s/dv/d
W R SYSTEMS LTD. GS-00F-317GA 703-934-0200 FAIRFAX ,VA o
VT AEPCO INC. GS-23F-0191N 301-863-6512 HUNTSVILLE ,AL o
VSE CORPORATION GS-00F-213CA 703-329-4724 ALEXANDRIA ,VA o
VISIONARY PRODUCTS, INC.       47QRAA19D008Y 801-260-4010 DRAPER ,UT s
VISION CENTRIC INC. GS-10F-0034U 256-830-0042 MADISON ,AL s/dv/d/8a
VIGYAN, INC. 47QRAA21D0023 757 865-1400 X202 HAMPTON ,VA s/w/wo/d
VICTORY SOLUTIONS, INC. GS-10F-0011U 256-799-2602 HUNTSVILLE ,AL s/w/wo/dv
VETERANS PROFESSIONAL SERVICES, LLC GS-00F-165GA 240-832-4143 MIDDLETOWN ,MD s/v
VETERAN ENTERPRISE TECHNOLOGY SERVICES, LLC 47QRAA18D00EU 7033497600 ASHBURN ,VA s/dv
VERSAR, INC. 47QRAA18D00F7 703-642-6793 SPRINGFIELD ,VA o
VERITY INTEGRATED SYSTEMS, INC. GS-00F-321GA 256-489-5680 HUNTSVILLE ,AL s/w/wo/ew/d
VENTURI, LLC GS-00F-044CA 2567052019 HUNTSVILLE ,AL s/d
VELOS LLC 47QRAA18D00G6 703-822-5777 PRINCESS ANNE ,MD s/h
VECTRUS MISSION SOLUTIONS CORPORATION GS-00F-050CA 719-637-4506 ALEXANDRIA ,VA o
VECTOR RESOURCE, INC       GS-00F-0004U 619-433-9586 SEWICKLEY ,PA s/w
VAULTES, LLC 47QRAA19D00B1 202-503-9128 ASHBURN ,VA s/v/d/8a
VANTAGE SYSTEMS, INC. GS-00F-313GA (301)459-6007 LANHAM ,MD o    
VANASSE HANGEN BRUSTLIN INC GS-00F-116CA 804-441-7439 WILLIAMSBURG ,VA o
VANA SOLUTIONS LLC       47QRAA18D00E2 937-490-1971 BEAVERCREEK ,OH s/w/wo/ew/d
VALKYRIE ENTERPRISES, LLC 47QRAA18D00DP (757)962-2545 VIRGINIA BEACH ,VA o  
VALI, INC. GS-23F-0037S 2563279304 HUNTSVILLE ,AL s/dv
VALI COOPER INTERNATIONAL, LLC GS-10F-0182Y (985) 789-3430 COVINGTON ,LA s/dv
VAIL NETWORK COMPANY, INC. 47QRAA19D0017 440-729-0514 CHESTERLAND ,OH s
V.R.C. CORPORATION       GS-23F-0107M (703)578-1107 ALEXANDRIA ,VA s/v  
UTAH STATE UNIVERSITY SPACE DYNAMICS LABORATORY       GS-23F-0046P 435-999-7055 NORTH LOGAN ,UT o
USFALCON, INC. GS-00F-322GA 919.459.1955 CARY ,NC s/dv
URBAN ENGINEERS, INC. GS-10F-0292T 215-922-8080 X1452 PHILADELPHIA ,PA o
UPSLOPE ADVISORS INC. 47QRAA21D002C 3038861125 DENVER ,CO s/d/8a
UNIVERSITY OF DAYTON GS-23F-0143R 937-229-2919 DAYTON ,OH o
UNIVERSITY OF CENTRAL FLORIDA BOARD OF TRUSTEES, THE GS-00F-413GA 407-882-1168 ORLANDO ,FL 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  
UNIVERSAL SOLUTIONS INTERNATIONAL, INCORPORATED 47QRAA19D002G 757-563-5530 NEWPORT NEWS ,VA s/dv
UNIFIED BUSINESS TECHNOLOGIES, INC. GS-10F-0230X 248-588-1781 TROY ,MI s/w/wo/ew/d
UNDERWRITERS LABORATORIES INC.       47QRAA18D007T 847-664-3475 NORTHBROOK ,IL o
UL LLC GS-10F-0426Y 717-459-3391 NORTHBROOK ,IL o
TYVAK NANO-SATELLITE SYSTEMS, INC. 47QRAA18D00DG (949)753-1020 IRVINE ,CA s  
TURNAROUND FACTOR INC GS-10F-0031N 804-909-0971 RICHMOND ,VA s/dv
TUKUH TECHNOLOGIES, LLC       47QRAA21D000R 816-708-1045 KANSAS CITY ,MO s/d/8a
TUBA GROUP, INC. GS-00F-222CA 7034179410 FALLS CHURCH ,VA s/d/8a
TSM CORPORATION GS-00F-284CA (901)373-0313 RESTON ,VA o  
TRS RANGE SERVICES, LLC 47QRAA20D0082 (859)392-0431 EAGLE ,ID s/d    
TROY 7, INC. GS-00F-202GA 256-799-7706 HUNTSVILLE ,AL s/w/wo
TRIVECTOR SERVICES, INC.       GS-10F-109CA 256-419-2171 HUNTSVILLE ,AL s
TRISEPT CORPORATION GS-10F-0118V 703-297-4622 CHANTILLY ,VA s
TRIDEUM CORPORATION GS-10F-0130T 256-704-6112 HUNTSVILLE ,AL s
TRIDENTIS, PLLC GS-10F-0462Y 7032444920 ALEXANDRIA ,VA s
TRIDENT TECHNOLOGIES, LLC       GS-23F-0157P 256-705-5449 HUNTSVILLE ,AL s/w/wo
TRAX INTERNATIONAL CORPORATION       47QRAA19D0072 702-216-4457 LAS VEGAS ,NV o
TRAUNER CONSULTING SERVICES, INC. GS-10F-0282Y 215-814-6400 PHILADELPHIA ,PA s
TRANSYSTEMS CORPORATION 47QRAA19D001C 510-835-9898 KANSAS CITY ,MO o
TRANSPO GROUP USA, INCORPORATED       47QRAA21D0051 (425)821-3665 KIRKLAND ,WA s    
TQI SOLUTIONS, INC.       47QTCA18D007P 7572221427 NORFOLK ,VA s/dv
TOYON RESEARCH CORPORATION GS-23F-0041P (805)968-6787 GOLETA ,CA s  
TOTAL SOLUTIONS, INC. GS-23F-0253R 256-705-0128 MADISON ,AL s/w/wo/d
TORCH TECHNOLOGIES INC GS-23F-0321N 256-319-6000 HUNTSVILLE ,AL o
TOLLIVER GROUP, INC., THE GS-00F-0013W 256-715-0488 HUNTSVILLE ,AL s/dv
TM CAPTURE SERVICES, LLC       47QRAA19D001Z (937) 426-2596 BEAVERCREEK ,OH s/w/wo/ew/d/8a
TIGER INNOVATIONS, INC.       GS-00F-139GA (703)435-2980 ARLINGTON ,VA s  
THORNTON TOMASETTI, INC. GS-23F-0185L (703)608-4414 NEW YORK ,NY o  
THOMPSON GRAY, INC. GS-00F-097DA 256-582-1414 HUNTSVILLE ,AL o
THE MIL CORPORATION GS-35F-443GA 301-866-2006 BOWIE ,MD o
TEXAS RESEARCH INSTITUTE, AUSTIN, INC. 47QRAA19D0056 512-263-3272 AUSTIN ,TX s
TETRA TECH, INC. GS-00F-168CA 8056813102 PASADENA ,CA o
TESTPROS, INC. 47QTCA19D00G9 8036690964 STERLING ,VA s
TESLA LABORATORIES INC. GS-23F-0208S 571.303.9483 ARLINGTON ,VA s/dv/d
TERRACON CONSULTANTS, INC. 47QRAA20D0065 (301)913-5000 OLATHE ,KS o    
TELTRIUM SOLUTIONS, LLC 47QRAA20D001Y (301)741-2711 GREENBELT ,MD s/d/8a    
TELGIAN ENGINEERING & CONSULTING, LLC 47QRAA21D0010 480-929-8062 PHOENIX ,AZ o
TELEDYNE BROWN ENGINEERING, INC. GS-00F-155CA 2567261211 HUNTSVILLE ,AL o
TEKLA RESEARCH, INC. GS-10F-073AA 7034922620 FREDERICKSBURG ,VA s/dv
TEHAMA, LLC       47QRAA18D00A4 719-437-5131 KANSAS CITY ,MO s/d/8a
TECTONIC ENGINEERING CONSULTANTS, GEOLOGISTS & LAND SURVEYORS, D.P.C. GS-00F-015BA 1-845-534-5959 MOUNTAINVILLE ,NY o
TECOLOTE RESEARCH, INC. GS-00F-052CA 805-571-6366 GOLETA ,CA s
TECHSOURCE, INC. GS-00F-003DA 5054126251 LOS ALAMOS ,NM s
TECHNOMICS, INC. GS-00F-103DA 571-366-1428 ARLINGTON ,VA s
TECHNOLOGY VENTURES, INC. 47QSMA21D08Q0 (586)573-6000 WARREN ,MI s/w/wo/dv/d    
TECHNOLOGY SERVICE CORPORATION GS-23F-0240S 301-576-2372 ARLINGTON ,VA o
TECHNOLOGY SECURITY ASSOCIATES, INC. GS-00F-171GA 301-866-0295X330 CALIFORNIA ,MD s/dv
TECHNOLOGY PROJECT MANAGERS, INC.       47QTCA19D00ER 202-374-2700 SILVER SPRING ,MD s/d/8a
TECHNOLOGY ASSOCIATES, INC. GS-00F-020GA 504-282-6166 NEW ORLEANS ,LA s/d
TECHNICAL SYSTEMS INTEGRATION, INC. GS-00F-237CA 7039559575 NORFOLK ,VA s/dv
TECHNICAL AND PROJECT ENGINEERING, LLC GS-10F-0026S 703-924-4015 ALEXANDRIA ,VA o
TECHNI-CORE ENGINEERING INC 47QRAA20D009E 2567040234 HUNTSVILLE ,AL s/w/wo
TECHNI-CORE ENGINEERING INC       GS-00F-0036M 2567040234 HUNTSVILLE ,AL s/w/wo
TECHFLOW, INC. GS-10F-005AA 858-412-8000 SAN DIEGO ,CA o
TECH7 CONSULTING, LLC 47QRAA21D0059 (310)259-7398 MONUMENT ,CO s/dv/d/8a    
TEC-MASTERS INC. GS-00F-0004X 256-830-4000 HUNTSVILLE ,AL s/d
TEC SOLUTIONS LLC 47QRAA21D002W 703-926-0094 MCLEAN ,VA s
TEAMWORKNET, INC GS-23F-0182R (863)327-1080 LAKELAND ,FL s  
TAURI GROUP, INC., THE       GS-00F-0006V 571-209-2652 ALEXANDRIA ,VA o
TARGETED APPROACH LLC 47QRAA20D004Z (703)725-8087 ALEXANDRIA ,VA s/dv/d
TALSON SOLUTIONS, LLC 47QRAA20D0025 215-592-9634 EXT 102 PHILADELPHIA ,PA s/d
T3W BUSINESS SOLUTIONS, INC. 47QRAA19D000N 6192980888 SAN DIEGO ,CA s/w/wo
SYSTEMS TECHNOLOGY & RESEARCH, INC. GS-23F-0246M 256-830-5470 HUNTSVILLE ,AL s/d
SYSTEMS TECHNOLOGIES, INC.       GS-00F-0002U 732-571-6400 WEST LONG BRANCH ,NJ s
SYSTEMS PRODUCTS AND SOLUTIONS, INC.       GS-00F-137CA 256-382-7734 HUNTSVILLE ,AL s/w/wo
SYSTEMS PLANNING AND ANALYSIS, INC. GS-00F-186CA 703-399-7017 ALEXANDRIA ,VA o
SYSTEMS KINETICS INTEGRATION GS-00F-288CA 4435347723 MARSTONS MILLS ,MA s/dv
SYSTEMATIC MANAGEMENT SERVICES, INC. GS-00F-241CA 3013530072 FREDERICK ,MD s
SYSTEM STUDIES & SIMULATION, INC 47QRAA19D005Y 256-539-1700 X1117 HUNTSVILLE ,AL s/w/wo
SYSTEM DYNAMICS INTERNATIONAL INCORPORATED GS-23F-0033P 256-895-7153 HUNTSVILLE ,AL s/w/wo
SYNTEK TECHNOLOGIES INC.       47QRAA20D009C 7035221025 FAIRFAX ,VA s/w/wo
SYNERGY BUSINESS INNOVATION & SOLUTIONS INC. 47QRAA19D0042 571-375-7723 RESTON ,VA s/d/8a
SYNERGISTICS, INC. 47QRAA19D000Y (800) 875-7921 KENNEWICK ,WA s/d
SYNEREN TECHNOLOGIES, CORPORATION 47QRAA18D005W 3018300529 ARLINGTON ,VA s/w/wo/ew/d
SYMVIONICS, INC GS-23F-0357N 626-305-1400 X 228 ARCADIA ,CA s
SUTHERTON, INC. 47QRAA19D006Z (914)235-9300 NEW ROCHELLE ,NY s    
SUSQUEHANNA VALLEY ENGINEERING GROUP, INC. 47QRAA18D003V (717)885-5532 DALLASTOWN ,PA s    
SURVICE ENGINEERING COMPANY, LLC, THE       GS-23F-0012M 410-273-7722 BELCAMP ,MD o
SURF TO SNOW ENVIRONMENTAL RESOURCE MANAGEMENT, INC. 47QRAA21D000B 925-362-3114 SAN RAMON ,CA s/dv/d
SUMMIT TECHNICAL SOLUTIONS LLC GS-10F-0347T (719)309-6312 COLORADO SPRINGS ,CO s/w/wo/v  
SUMMER CONSULTANTS INC GS-10F-0230Y (703)556-8820 MCLEAN ,VA s  
STUDDIFORD TECHNICAL SOLUTIONS, LLC 47QRAA20D006Y 2032060533 ALEXANDRIA ,VA s
STREET LEGAL INDUSTRIES, INC 47QRAA19D00A7 865-483-6373 OAK RIDGE ,TN s/w/wo/ew/d/8a/h
STRATITIA INC. 47QRAA19D006J 3017885924 SPRINGFIELD ,VA s
STRATEGIC VENTURES CONSULTING GROUP, LLC GS-00F-071GA (703)634-3673 FALLS CHURCH ,VA s/dv  
STRATEGIC TECHNOLOGY INSTITUTE INC GS-00F-164CA 301-770-7077 ROCKVILLE ,MD s/d
STRATEGIC MANAGEMENT SOLUTIONS, LLC 47QRAA19D008M 505-907-6593 ALBUQUERQUE ,NM s
STRATEGIC ANALYSIS, INC. GS-00F-342CA 703-797-2288 ARLINGTON ,VA o
STRATEGIC ALLIANCE CONSULTING INC. GS-00F-372GA 703-224-8880 WARRENTON ,VA s/dv
STRATEGIC ALLIANCE BUSINESS GROUP LLC GS-10F-0316P 703-717-5620 FAIRFAX ,VA s/w/wo/ew/dv
STRATAGEM SOLUTIONS, INCORPORATED 47QRAA20D004V 2569198208 HUNTSVILLE ,AL s/v
STRATA-G SOLUTIONS, LLC GS-10F-0287W 2567054316 HUNTSVILLE ,AL s/d
STRATA G, LLC GS-00F-004CA 8659343400 KNOXVILLE ,TN o
STR CONSULTING       GS-10F-0457X (312)242-4159 CHICAGO ,IL s  
STG, INC. GS-00F-234CA 703-774-1790 RESTON ,VA o
STEMBOARD, LLC 47QRAA20D0039 703-884-2121 ARLINGTON ,VA s/w/wo/ew/d/8a
STELLAR SOLUTIONS, INC. 47QRAA18D00FQ 703-657-2734 PALO ALTO ,CA s/w/wo
STARGATES, INC. GS-00F-0033Y 703-465-7955 ARLINGTON ,VA s/w/wo/ew
STANTON ENGINEERING SERVICES LLC 47QRAA18D0078 (410)290-9301 COLUMBIA ,MD s  
STANTEC CONSULTING SERVICES INC. 47QRAA19D000Q 916-418-8338 BROOMFIELD ,CO o
SSOE, INC. GS-00F-006AA (419)255-3830 TOLEDO ,OH o  
SSFM INTERNATIONAL, INC       47QRAA18D00ET (808)531-1308 HONOLULU ,HI s  
SRC, INC. 47QRAA19D005N 3154528165 NORTH SYRACUSE ,NY o
SRA INTERNATIONAL, INC. GS-00F-256CA (703) 995-3733 CHANTILLY ,VA o
SPORIAN MICROSYSTEMS INC       47QRAA18D00BN 303-516-9075 LAFAYETTE ,CO s
SPECTRUM INC 47QRAA18D00F5 865-806-7577 OAK RIDGE ,TN s/v/d
SPECTRUM COMM INC. GS-00F-318CA 757-224-7500 NEWPORT NEWS ,VA o
SPECTRUM CENTER GOVERNMENT SERVICES, LLC 47QRAA19D001F 703-752-0462 MCLEAN ,VA s/w/wo
SPECTRA TECH, INC. GS-00F-264CA 865-813-2131 OAK RIDGE ,TN s
SPECIAL AEROSPACE SERVICES GS-10F-0456X 303-747-3413 BOULDER ,CO s/w/wo/ew/d/8a
SPATIAL ENGINEERING, INC. GS-35F-070AA 912-826-6688 RINCON ,GA s
SPACEFLIGHT, INC GS-00F-036DA 866-342-9934 SEATTLE ,WA o
SPACE SYSTEMS INTEGRATION, LLC 47QRAA20D001A (703)380-9376 GREAT FALLS ,VA s    
SPACE METRICS, INC.       GS-00F-299GA 202-860-0004 WASHINGTON ,DC s/d
SPAARK, INC       47QTCA20D00D0 7176582429 CHAMBERSBURG ,PA s/w/wo/ew/h
SOUTHWEST RESEARCH INSTITUTE GS-23F-0006M (210)522-2230 SAN ANTONIO ,TX o  
SOUTHERN RESEARCH INSTITUTE GS-10F-0185Y 2055812873 BIRMINGHAM ,AL o
SONALYSTS, INC.       GS-00F-351CA 860-326-3652 WATERFORD ,CT o
SOLIDUS TECHNICAL SOLUTIONS, LLC 47QRAA21D000C 781-538-0616 LEOMINSTER ,MA s/w/wo/v
SOLERS INC. 47QRAA19D001B 703-668-6248 ARLINGTON ,VA s
SOL ENGINEERING SERVICES, LLC GS-00F-223GA 601-961-1415 JACKSON ,MS s/d/h
SOBRAN, INC. GS-00F-220CA 703-352-9511 X 298 BEAVERCREEK ,OH o
SKJEI TELECOM, INC. GS-23F-0286P 703-917-9882 FALLS CHURCH ,VA s
SKANSKA USA BUILDING INC. GS-00F-332GA (540)423-2860 ROCKVILLE ,MD o  
SJH ENGINEERING PC GS-10F-0477X 7323290500 PRINCETON ,NJ s/d
SIRIS LLC 47QRAA19D00CA 8439013540 MOUNT PLEASANT ,SC s/dv/d
SIMULATION TECHNOLOGIES, INC.       GS-10F-100BA 256-428-2904 HUNTSVILLE ,AL s/wo
SIGNATURE SOLUTIONS, INC.       GS-00F-207GA 2565081961 HUNTSVILLE ,AL s
SIGNATURE SCIENCE, LLC GS-00F-105CA (877) 474-4724 AUSTIN ,TX o
SIGNALINK, INC GS-00F-038GA 256-715-6744 MADISON ,AL s/w/wo/v
SIGMATECH, INC. GS-00F-060CA 256-319-9212 HUNTSVILLE ,AL s
SIGMARIVER INC. 47QRAA18D00GH 610-793-4390 FRONT ROYAL ,VA s/dv
SIGMA SPACE LLC GS-00F-175GA 301-552-6027 LANHAM ,MD o
SIGMA SCIENCE, INC. 47QRAA18D005Q 505-389-2201 ALBUQUERQUE ,NM s/d/8a
SHERPA 6, INC. 47QRAA21D000A 703-260-8188 X188 LITTLETON ,CO s/dv
SHARMA & ASSOCIATES INC       GS-10F-0027T 708-588-9871 HINSDALE ,IL s/d
SHAPEFIDELITY, INC.       GS-00F-284GA 2562137841 HUNTSVILLE ,AL s/w/wo
SEVENTH SENSE CONSULTING, LLC GS-00F-102GA 5712416331 WOODBRIDGE ,VA s/dv/d/8a
SEVATEC INC. GS-10F-0142W 571-766-1300 FAIRFAX ,VA o
SEVAN MULTI-SITE SOLUTIONS LLC 47QRAA18D0072 (708)670-9966 DOWNERS GROVE ,IL s/v  
SEV1TECH INC       GS-10F-0008V 7036629778 WOODBRIDGE ,VA o
SERVO INNOVATIONS, LLC 47QRAA19D00B3 269-792-9279 WAYLAND ,MI s
SERES ENGINEERING & SERVICES LLC 47QRAA18D00ES (843) 216-8531 CHARLESTON ,SC s/d/8a
SERCO INC. GS-00F-193CA 703.263.6000 HERNDON ,VA o
SENTINEL CONSULTING, LLC 47QRAA20D005P 888-793-9380 NEW YORK ,NY s/d
SENTAR, INC.       GS-10F-095AA 256-430-0860 HUNTSVILLE ,AL s/w/wo
SENSOR CONCEPTS AND APPLICATIONS, INC. GS-10F-0240Y 4439558899 GLEN ARM ,MD s/w/wo
SEMPER VALENS SOLUTIONS, INC. 47QTCA19D00DW 941-716-7883 CANYON LAKE ,TX s/dv
SELF TECHNOLOGIES, INC.       47QRAA19D001D 256-535-9517 OWENS CROSS ROADS ,AL s/w/wo
SELECTTECH SERVICES CORPORATION GS-23F-0283L 9374389905 CENTERVILLE ,OH s/w/wo
SEI GROUP, INC. 47QRAA19D001U 256-533-0500 HUNTSVILLE ,AL o
SDS INTERNATIONAL, INC.       47QRAA21D004U 540-424-5926 FREDERICKSBURG ,VA s/dv
SDS INTERNATIONAL, INC. GS-00F-0077M 540-424-5926 FREDERICKSBURG ,VA s/dv
SCITECH SERVICES, INC. GS-02F-0259X 443-303-3623 HAVRE DE GRACE ,MD s
SCIENTIFIC & BIOMEDICAL MICROSYSTEMS, LLC GS-10F-0497X 703-848-8850 GLEN BURNIE ,MD s
SCIENCE SYSTEMS AND APPLICATIONS, INC. GS-23F-0102N 301-867-6316 LANHAM ,MD s
SCIENCE APPLICATIONS INTERNATIONAL CORPORATION GS-00F-002CA 703-676-8723 RESTON ,VA o
SCIENCE AND TECHNOLOGY CORPORATION GS-23F-0184L 757-766-5819 HAMPTON ,VA s
SCIENCE AND TECHNOLOGY ASSOCIATES, INC.       47QRAA19D0082 703-522-5123 ARLINGTON ,VA s
SCHAFER GOVERNMENT SERVICES, LLC 47QRAA19D0021 7577636612 ARLINGTON ,VA o
SCAVET TECHNOLOGIES LLC GS-10F-087BA (609)254-0423 BLACKWOOD ,NJ s/dv  
SAYRES AND ASSOCIATES CORPORATION GS-00F-027CA (202)355-0922 WASHINGTON ,DC o  
SAWDEY SOLUTION SERVICES, INC. 47QRAA18D00AL 9374904071 BEAVERCREEK ,OH o
SAVILLS INC. GS-00F-165CA 202-624-8540 WASHINGTON ,DC o
SAMS CONTRACTING CONSULTING AND TRAINING LLC GS-00F-309DA 210-788-1034 SAN ANTONIO ,TX s/dv/d
SAMES, INC. GS-00F-298GA 9567028880 MCALLEN ,TX s/d/8a/h
SAIN ENGINEERING ASSOCIATES, INC. 47QRAA20D000V 205-909-4990 BIRMINGHAM ,AL s
SAGE SERVICES GROUP, LLC 47QREA21D0008 240-380-3504 BOWIE ,MD s/w/wo/ew
SABRE SYSTEMS, INC. GS-00F-178CA 215-347-1458 WARRINGTON ,PA o
SA TECHNICAL SERVICES, INC. 47QRAA19D00BL (850)613-6085 NICEVILLE ,FL s/dv
S5 SOLUTIONS, INC. 47QRAA19D00CT (425)232-6277 MUKILTEO ,WA s  
S2 ANALYTICAL SOLUTIONS, LLC 47QRAA19D006L 571-306-0715 HERNDON ,VA s/v
S&ME, INC. GS-10F-0259X (919)872-2660 RALEIGH ,NC o  
ROUNDTABLE DEFENSE, LLC GS-10F-0231Y (540)379-6707 FREDERICKSBURG ,VA s/dv  
ROCKWOOD COMPANY LLC 47QRAA18D0018 (202)841-6634 WASHINGTON ,DC s/w/wo  
ROCK ENGINEERING LLC       GS-00F-319GA (860)841-7106 SOUTH WINDSOR ,CT s  
ROBERT AND COMPANY GS-00F-210GA 4045774000 ATLANTA ,GA s/dv
RMA ARCHITECTS, P.S.C. 47QRAA19D009A (404)551-7855 SAN JUAN ,PR s/w/wo/d  
RIVERSIDE TECHNOLOGY, INC. GS-00F-0026P 9702149419 FORT COLLINS ,CO o
RIVERSIDE RESEARCH INSTITUTE 47QRAA19D00CN 937-427-7009 NEW YORK ,NY o
RIMKUS ANALYTICS, L.L.C. GS-10F-0277Y (713)621-3550 HOUSTON ,TX o  
RIGGINS COMPANY, L.C. 47QRAA18D005R 757-826-0525 HAMPTON ,VA s
RICARDO DEFENSE, INC. GS-10F-0212T 805-882-1884 X110 GOLETA ,CA s
RHINO FIRE PROTECTION ENGINEERING, PLLC GS-10F-0194Y 7034765034 RESTON ,VA s
RESPEC COMPANY, LLC GS-00F-0078N (605)394-6507 RAPID CITY ,SD o  
RESEARCH TRIANGLE INSTITUTE GS-00F-354CA 919-541-6543 RESEARCH TRIANGLE P ,NC o
REED ENTERPRISE CONSULTING LLC       47QRAA18D00EP 2566040975 HUNTSVILLE ,AL s/dv/h
REDHORSE CORPORATION       GS-00F-0013Y 619-241-4609 SAN DIEGO ,CA o
REDHORSE CORPORATION GS-07F-134GA 619-241-4609 SAN DIEGO ,CA s/dv/d/8a
RED GATE GROUP, LIMITED, THE GS-10F-0262X (703)214-2824 CHANTILLY ,VA s/dv  
RED CANYON SOFTWARE, INC       GS-00F-044GA (303)864-0556 DENVER ,CO s/v/h  
RAYTHEON COMPANY GS-00F-177CA (571) 250-3832 WALTHAM ,MA o
RADIANTBLUE TECHNOLOGIES, INC. GS-10F-0046V 571-521-8840 COLORADO SPRINGS ,CO o
RADIANT GEOSPATIAL SOLUTIONS LLC       GS-35F-481DA 703-439-4772 GAITHERSBURG ,MD o  
RADIANCE TECHNOLOGIES, INC.       47QRAA19D008B 256-489-8960 HUNTSVILLE ,AL s
R3 STRATEGIC SUPPORT GROUP, INC. GS-10F-0116Y (865) 816-4164 CORONADO ,CA s/dv
R2T, INC. GS-00F-129GA (770)569-7038 ATLANTA ,GA s/w/wo/ew/d  
R2C LIMITED LIABILITY COMPANY GS-00F-306GA 256-799-2363 HUNTSVILLE ,AL s/dv
R C M TECHNOLOGIES, INC.       47QRAA18D00F0 301-986-1412 PENNSAUKEN ,NJ o
R & B STUDIO LLC GS-00F-355GA (301)509-2092 BETHESDA ,MD s  
QUASARS INCORPORATED       GS-00F-106GA (202)863-4431 WASHINGTON ,DC s/w/wo  
QUANTUM RESEARCH INTERNATIONAL, INC. 47QRAA19D00A9 256-971-1800, X145 HUNTSVILLE ,AL s
QUANTITECH INC GS-23F-0320N 256-652-7025 HUNTSVILLE ,AL o
QUANTITATIVE SCIENTIFIC SOLUTIONS, LLC 47QRAA19D004D 703-468-1277 ARLINGTON ,VA s
QUALITY INNOVATION, INC. 47QRAA18D000E 703-382-6207 AUSTIN ,TX s/dv/h
QUALIS CORPORATION GS-10F-0025U 256-327-3512 HUNTSVILLE ,AL s/w/d
QTEC, INC GS-23F-0255M 256 8837994 X 101 HUNTSVILLE ,AL s/wo
QINETIQ INC. 47QRAA18D00AA 5406582720 EXT 1441 LORTON ,VA o
QED SYSTEMS, INC. GS-00F-059CA 757-490-5021 VIRGINIA BEACH ,VA o
QED SYSTEMS LLC 47QRAA18D00A9 443-360-4504 ABERDEEN PROVING GR ,MD s
PURVIS SYSTEMS INCORPORATED GS-10F-0191X (401)849-4750 QUEENS VILLAGE ,NY s  
PROTECTION STRATEGIES INCORPORATED 47QRAA18D0049 (865) 294-5101 KNOXVILLE ,TN s/dv
PROSOURCE CONSULTING, L.L.C. GS-10F-0123T (703)754-7400 GAINESVILLE ,VA s/w/wo/d  
PROMODEL CORPORATION GS-00F-421GA 860-608-5389 OREM ,UT s
PROJECT TIME & COST, LLC 47QRAA19D003A 7702000192 ATLANTA ,GA s
PROJECT SUPPORT SERVICES, INC. GS-00F-108CA 352-288-0216 SUMMERFIELD ,FL o
PROJECT SOLUTIONS, INC. GS-00F-025DA 60573670377 RAPID CITY ,SD s/w/wo/ew/d
PROJECT SOLUTIONS GROUP, INC. GS-00F-367GA 7035630480 CHANTILLY ,VA s
PROJECT SERVICES GROUP, LLC GS-00F-120CA 770-454-0396 SUWANEE ,GA s/d/8a
PROJECT ENHANCEMENT CORPORATION       GS-00F-0004T 240-686-3059 GERMANTOWN ,MD s
PROJECT CONTROLS GROUP, INC. 47QRAA17D0001 (314)647-0707 SAINT LOUIS ,MO s/d  
PROFESSIONAL, ACQUISITION, AND TECHNICAL SERVICES, INC. GS-23F-0277L 703-416-1304 FALLS CHURCH ,VA s/v
PROFESSIONAL PROJECT SERVICES, INC. GS-00F-112CA 865.220.4377 OAK RIDGE ,TN s
PROFESSIONAL ANALYSIS INC GS-10F-0078T 703-566-8025 ALEXANDRIA ,VA s/v
PRODUCTIVITY APEX, INC. GS-10F-0266U (407)222-1256 WINTER PARK ,FL s/w/wo/d/8a  
PRODIMS LLC 47QRAA20D001F (425)828-0500 KIRKLAND ,WA s    
PROCON CONSULTING LLC GS-00F-247CA (571)384-2403 ARLINGTON ,VA s  
PROCLEARED, LLC 47QRAA19D005W 540-422-1202 CHANTILLY ,VA s/v
PRKK, L.L.C. 47QRAA18D006N 3032463377 STUART ,FL s
PRINTED CIRCUITS CORP. 47QRAA20D007N 770-638-8658 LILBURN ,GA s/d
PRIMETECH INTERNATIONAL, INC. 47QRAA18D00CY 816-759-0431 NORTH KANSAS CITY ,MO s/w/wo/d/8a
PRETALEN LTD       GS-00F-229GA (513)739-5347 DAYTON ,OH s/w/wo/d  
PRESCIENT EDGE CORPORATION 47QRAA18D00CU 202-557-1589 MC LEAN ,VA s/v
PREFERRED PROGRAM SOLUTIONS INC 47QRAA18D009S 256-350-5983 MADISON ,AL s/dv
PRECISION TECHNOLOGIES, INC. 47QRAA18D00DZ (301)591-2442 GAITHERSBURG ,MD s/w/wo/d  
PRECISION SCHEDULING CONSULTANTS, LLC GS-00F-253DA 210-380-5691 SAN ANTONIO ,TX s/dv
PPT SOLUTIONS, INC. GS-00F-422GA 256-319-0423 HUNTSVILLE ,AL s
POTOMACWAVE CONSULTING, INC. GS-00F-0007X 703-963-5064 ALEXANDRIA ,VA o
POND & COMPANY GS-00F-363GA 404-748-4758 PEACHTREE CORNERS ,GA o
POLARIS SENSOR TECHNOLOGIES, INC. GS-00F-198GA 256 562 0087 X 2264 HUNTSVILLE ,AL s/w/wo
PMA CONSULTANTS, L.L.C. 47QRAA19D003Y (313)963-8863 DETROIT ,MI o  
PLANATE MANAGEMENT GROUP LLC GS-23F-058AA 703-585-1079 ALEXANDRIA ,VA s/dv
PIONEERING EVOLUTION, LLC       GS-00F-219DA 571-357-1901 ARLINGTON ,VA s
PINNACLE SOLUTIONS, INC. GS-00F-0017X 256-498-1388 HUNTSVILLE ,AL o
PHASED N RESEARCH, INC       47QRAA21D001V 2567974631 HUNTSVILLE ,AL s/h
PERSPECTA AEROSPACE & DEFENSE INC. GS-23F-0207P 256-922-6783 HUNTSVILLE ,AL o
PERIKIN ENTERPRISES, LLC GS-00F-003AA 505-333-0501 ALBUQUERQUE ,NM s/d/8a/h
PEREGRINE TECHNICAL SOLUTIONS, LLC 47QRAA18D0016 808-796-1364 YORKTOWN ,VA s/d/8a
PERDUCO GROUP, INC., THE 47QRAA18D000L 323-924-1587 BEAVERCREEK ,OH o
PERATON INC.       GS-23F-0190L 703-668-6248 HERNDON ,VA o
PEOPLETEC, INC. GS-10F-0114T 256-319-3876 HUNTSVILLE ,AL s/w/wo
PEERLESS TECHNOLOGIES CORPORATION GS-00F-355CA 937-490-5006 FAIRBORN ,OH o
PD SYSTEMS, INC. GS-00F-331CA (703)778-7699 SPRINGFIELD ,VA o  
PCI STRATEGIC MANAGEMENT, LLC 47QRAA20D002Z 443-430-0123 COLUMBIA ,MD s/v
PCCI, INC. 47QRAA18D00HE 703-229-1110 ALEXANDRIA ,VA o
PATRONA CORPORATION 47QRAA19D009E 603-506-6154 WASHINGTON ,DC s
PARTNER ASSESSMENT CORPORATION 47QRAA18D00EE 7738405070 TORRANCE ,CA o
PARSONS GOVERNMENT SERVICES INC. 47QRAA19D000A (210) 477-1616 PASADENA ,CA o
PARRA CONSULTING GROUP, INC 47QRAA19D00B9 240-686-6042 MIDDLETOWN ,MD s/dv/d/8a/h
PAGNOTTA ENGINEERING INC. 47QRAA19D0016 (859)572-4482 EXTON ,PA s    
P3I, INCORPORATED GS-10F-044AA 508-435-7882 HOPKINTON ,MA s/w/wo/v
OVERLOOK SYSTEMS TECHNOLOGIES, INC. GS-10F-0100T 7039724368 VIENNA ,VA s
OUTREACH PROCESS PARTNERS, LLC       GS-00F-0008W (800) 517-1137 X6 BETHESDA ,MD s/w/wo/ew/d
OUTFIT INC., THE       47QRAA18D00EL 8305343178 NEW BRAUNFELS ,TX s/w/wo
OTAK, INC. GS-10F-0401X 503-287-6825 PORTLAND ,OR o
OST, INC. 47QRAA18D0090 (202)466-8099 MCLEAN ,VA o  
ORBIS SIBRO, INC. GS-23F-0185N 843-971-9390 CHARLESTON ,SC s/w
ONEIDA TOTAL INTEGRATED ENTERPRISES, LLC 47QRAA20D009B 414-257-4200 MILWAUKEE ,WI s/d
OLD DOMINION UNIVERSITY RESEARCH FOUNDATION GS-10F-097CA (757)683-7224 NORFOLK ,VA o  
OHIO TECHNOLOGY CLEARINGHOUSE, INCORPORATED GS-10F-0038W 2564892623 HUNTSVILLE ,AL s
ODYSSEY SYSTEMS CONSULTING GROUP, LTD. GS-10F-0254U (781)399-5807 WAKEFIELD ,MA o  
ODYSSEY SPACE RESEARCH L L C GS-23F-0382P 281-488-7953 HOUSTON ,TX s/wo
OCMI INC 47QRAA18D008M 9494762094 IRVINE ,CA s/dv/d
OCKMAN & BORDEN ASSOCIATES       GS-00F-443GA (610)566-1241 MEDIA ,PA s  
OCH TECHNOLOGIES, LLC 47QRAA19D005Q 7038643479 LEESBURG ,VA s/d/8a
OCEAN ASSOCIATES, INCORPORATED GS-10F-0567P 703-388-9548 ARLINGTON ,VA s/w/wo
OASYS, INC. GS-00F-182DA 2568019025 HUNTSVILLE ,AL s
OASIS SYSTEMS, LLC 47QRAA18D006F 781-879-1447 BURLINGTON ,MA s
NTT DATA SERVICES FEDERAL GOVERNMENT LLC       47QRAA19D0069 703-289-8161 HERNDON ,VA o
NTA, INC. GS-10F-0132W (256) 327-4103 HUNTSVILLE ,AL s
NOWAK & FRAUS, P.L.L.C. 47QRAA21D002J (412)404-6235 PONTIAC ,MI s    
NOU SYSTEMS, INC. GS-00F-143DA 256-327-5541 HUNTSVILLE ,AL s/w/wo
NORTHROP GRUMMAN SYSTEMS CORPORATION GS-00F-128CA 703-713-4586 MCLEAN ,VA o
NORTHINGTON CONSULTING, LLC       47QRAA18D0083 (256) 651-3333 BIRMINGHAM ,AL s/dv
NOETIC STRATEGIES, INC. 47QRAA18D00H6 2563471560 HUNTSVILLE ,AL s/w/wo/ew/d/h
NOBLIS, INC. GS-00F-096DA (703) 610-2290 RESTON ,VA o
NLT CORPORATION GS-00F-098DA (703) 912-3130 SPRINGFIELD ,VA s/d
NLOGIC, LLC GS-00F-239CA 256-704-2513 HUNTSVILLE ,AL s
NIKA TECHNOLOGIES, INC. GS-23F-0010R 3017703520 ROCKVILLE ,MD s/d
NICHOLS CONSULTING ENGINEERS, CHTD. 47QRAA18D008A 7753294955 RENO ,NV s
NEXAGEN NETWORKS INC GS-00F-066GA 732-598-1277 MORGANVILLE ,NJ s/w/d
NEWPORT PARTNERS, THE, LLC GS-00F-007CA (301) 889-0017 DAVIDSONVILLE ,MD s
NETWORK SENSING TECHNOLOGIES, LLC GS-00F-006HA (850)684-0033 FORT WALTON BEACH ,FL s  
NETORIAN GS-35F-266AA 4439003800 ABERDEEN ,MD s
NETCENTRIC TECHNOLOGY, LLC 47QRAA19D00AU 703-478-2650 WALL ,NJ s/d
NELSON ENGINEERING CO. GS-00F-324CA 3214491128 MERRITT ISLAND ,FL s
NDI ENGINEERING COMPANY GS-23F-0161M (856)848-0033 THOROFARE ,NJ s  
NCI INFORMATION SYSTEMS, INC. GS-00F-263CA 703-707-6730 RESTON ,VA o
NAVIGATOR INTERNATIONAL, LLC GS-00F-393GA 334-348-1550 HUNTSVILLE ,AL s/dv
NAVIGATOR DEVELOPMENT GROUP, INC. 47QRAA21D001X (334) 347-7612 ENTERPRISE ,AL s/dv
NAVIGATOR DEVELOPMENT GROUP, INC.       GS-00F-0044N 334-347-7612 ENTERPRISE ,AL s/dv
NAVIGATE BUILDING SOLUTIONS LLC 47QRAA19D002F (314)713-6205 SAINT LOUIS ,MO s  
NAVARRO RESEARCH AND ENGINEERING, INC. GS-00F-0092N 865-220-9650 OAK RIDGE ,TN s/w/wo/d
NANORACKS, LLC 47QRAA18D004R (832)632-7754 WEBSTER ,TX s  
MTI SYSTEMS, INC. GS-00F-007BA (518)894-2538 GREENBELT ,MD s/w/wo/d  
MTA, INC. GS-23F-0039P 256-801-9106 HUNTSVILLE ,AL s/w/wo
MSS SERVICES, INC. GS-10F-0204V 240-832-4143 GERMANTOWN ,MD s/d/8a
MSI DEFENSE SOLUTIONS, LLC GS-10F-180BA 704-660-8348 MOORESVILLE ,NC s
MSB ANALYTICS, INC. GS-00F-305DA 256-726-0045 HUNTSVILLE ,AL s/w/wo/d
MPR ASSOCIATES, INC. 47QRAA19D0078 703-519-0200 ALEXANDRIA ,VA o
MORSECORP, INC 47QRAA18D00A1 8579990420 CAMBRIDGE ,MA s
MONTE SANO RESEARCH CORPORATION       47QRAA18D006B 2567053527 HUNTSVILLE ,AL s
MODERN TECHNOLOGY SOLUTIONS, INC.       47QRAA20D0036 703-564-3824 ALEXANDRIA ,VA s
MOCA SYSTEMS, INC. GS-00F-255CA 850-389-8121 BOSTON ,MA s
MOBIUS CONSULTING, LLC GS-00F-088GA (571)445-6320 ALEXANDRIA ,VA s/w/wo/ew/h  
MLT SYSTEMS LLC GS-10F-0168W 5403186383 STAFFORD ,VA s/dv
MISSIONFOCUS LLC GS-10F-149AA 703-291-6721 MCLEAN ,VA s
MISSION1ST GROUP, INC GS-10F-102BA 5714097133 ARLINGTON ,VA o
MIRACORP, INC. GS-10F-233AA 571-589-8970 MESA ,AZ s/w/wo/ew/dv/d
MINO MARINE, L.L.C. GS-00F-249GA 504-218-8162 NEW ORLEANS ,LA s
MINDMESH INC 47QRAA19D004B (713)489-7798 HOUSTON ,TX s/w/wo/8a  
MILVIAN SOLUTIONS, LLC       47QRAA18D008C (915)892-4585 EL PASO ,TX s/dv/d  
MILLENNIUM ENGINEERING AND INTEGRATION COMPANY       47QRAA20D0092 7034137765 ARLINGTON ,VA s/v
MILLENNIUM CORPORATION GS-10F-0141W 703-436-1346 ARLINGTON ,VA s/dv/d
MICROWAVE PACKAGING TECHNOLOGY, INC. 47QRAA18D000T (310)980-3039 MURRIETA ,CA s/h  
MICROCOM DESIGN, INC. GS-10F-0213W 410-771-1070 COCKEYSVILLE ,MD s
MICHAEL K. SWIM, CONSULTING ENGINEER, INC       47QRAA18D00DF (844)470-8802 CHESTERFIELD ,MO s  
MICHAEL BAKER INTERNATIONAL, INC. GS-00F-0032M 703-483-0029 ALEXANDRIA ,VA o
METRON, INCORPORATED       GS-00F-166DA 703-326-2870 RESTON ,VA s
MELE ASSOCIATES, INC. GS-00F-243CA (240)453-6962 ROCKVILLE ,MD s/v
MEDIADYNE, LLC 47QRAA18D00DY (301)785-3601 GREAT FALLS ,VA s/v  
MEARSCPM, LLC 47QRAA19D0011 (503)680-3792 PORTLAND ,OR s/v  
MEAD AND HUNT, INC. GS-00F-230DA (906)629-1360 MIDDLETON ,WI o  
ME AUTOMATION, LLC 47QRAA20D008Y 480-688-4112 SCOTTSDALE ,AZ s/d
MCR FEDERAL, LLC GS-00F-123CA 703.740.2237 MCLEAN ,VA s
MCLAUGHLIN RESEARCH CORPORATION       GS-23F-0077M 401-849-4010 NEW LONDON ,CT s
MCKISSACK GROUP, INC. THE 47QRAA19D003D (212)349-6500 NEW YORK ,NY o  
MCHENRY MANAGEMENT GROUP, INC., THE GS-10F-0239U 7574100233 CHESAPEAKE ,VA s/v
MCDONOUGH BOLYARD PECK, INC. GS-23F-0095P 6293334012 FAIRFAX ,VA o
MCCONNELL JONES LANIER & MURPHY LLP GS-10F-0117U 2568901855 HOUSTON ,TX s/d/8a
MAYVIN, INC. GS-10F-0280Y (703) 750-1794 ANNANDALE ,VA s/w/wo
MATRIX DESIGN GROUP, INC. 47QRAA19D009K 5719690495 COLORADO SPRINGS ,CO o
MASON LIVESAY SCIENTIFIC, LLC 47QRAA19D00AJ (865)294-4368 OAK RIDGE ,TN s/w/wo/d  
MARKON, INC. GS-00F-0012Y 703-884-0028 FALLS CHURCH ,VA s
MARK G. ANDERSON CONSULTANTS, INC. GS-00F-212CA 202-942-3904 WASHINGTON ,DC o
MARINE SYSTEMS CORPORATION 47QRAA19D006B 617-542-3345 X1112 BOSTON ,MA s
MARINE DESIGN AND OPERATIONS, INC. GS-23F-0233S (908)497-0599 COLONIA ,NJ s  
MANUFACTURING TECHNICAL SOLUTIONS, INC. 47QRAA21D001L 256-890-9090 HUNTSVILLE ,AL s/w/wo
MANTECH ADVANCED SYSTEMS INTERNATIONAL, INC. GS-00F-086CA 703-218-6440 HERNDON ,VA o
MANAGEMENT SOLUTIONS, L.L.C. GS-10F-0284R 865-963-0400 KNOXVILLE ,TN s/w/wo/ew/d
MANAGEMENT SERVICES GROUP, INC. GS-00F-285DA (757)468-8751 VIRGINIA BEACH ,VA s/w/wo/d  
MAN-MACHINE SYSTEMS ASSESSMENT (MSA), INCORPORATED GS-00F-219GA 202-408-0042 ARLINGTON ,VA s/w/wo/ew/d
MACAULAY-BROWN, INC GS-00F-063CA (937)426-3421 DAYTON ,OH o  
M.C. DEAN, INC. 47QSWA19D002W 703-243-6231 X7143 TYSONS ,VA o
LYNKER TECHNOLOGIES LLC GS-00F-125CA 7034315855 LEESBURG ,VA o
LYNCH CONSULTANTS, LLC GS-00F-118DA 540-834-3490 ARLINGTON ,VA s/dv
LUSTER NATIONAL, INC. 47QRAA21D0044 678-525-8779 BAKERSFIELD ,CA s/v/d
LSINC CORPORATION 47QRAA18D00BC (937)505-3031 HUNTSVILLE ,AL s/w/wo/ew    
LRS FEDERAL LLC GS-10F-0360T (410) 544-3570 SEVERNA PARK ,MD s/dv
LOYAL SOURCE GOVERNMENT SERVICES LLC 47QRAA18D008T (407)306-8441 ORLANDO ,FL o  
LONGENECKER & ASSOCIATES, INC. GS-00F-258CA 301-651-6951 LAS VEGAS ,NV o
LOGLINEAR GROUP, LLC GS-00F-257DA (228)238-1496 WAVELAND ,MS s  
LOGISTICS SYSTEMS INCORPORATED GS-35F-0477Y 240-938-7461 WASHINGTON ,DC s/dv/d
LOGISTICS MANAGEMENT INSTITUTE       GS-00F-0026M (703)917-7524 TYSONS ,VA o  
LOGISTICS MANAGEMENT INSTITUTE       GS-00F-041GA (703)917-7524 TYSONS ,VA o  
LOGISTICS MANAGEMENT ENGINEERING INC       GS-00F-069CA 410-757-6319 ANNAPOLIS ,MD s
LOGISTICS & ENVIRONMENTAL SOLUTIONS CORPORATION 47QRAA19D00CX 256-971-7165 HUNTSVILLE ,AL s/w/wo
LOGICORE CORPORATION GS-00F-228CA 2565335789 HUNTSVILLE ,AL s/w
LOGAPPS LLC GS-10F-011CA (703) 560/8828 FALLS CHURCH ,VA s/v/d/8a
LOEWKE BRILL CONSULTING GROUP, INC. 47QRAA20D0019 (585)647-9350 ROCHESTER ,NY s    
LOCKWOOD GROUP LLC, THE GS-00F-349GA 443-327-7174 BELCAMP ,MD s/dv
LOCH HARBOUR GROUP, INC. 47QRAA19D005R 7036422380 ALEXANDRIA ,VA o
LJB INC GS-00F-049CA 937-259-5000 MIAMISBURG ,OH o
LINQUEST CORPORATION GS-23F-0113S 323-924-1600 LOS ANGELES ,CA o
LINK TECHNOLOGIES INC 47QRAA20D0096 301-983-6878 GERMANTOWN ,MD s/w/wo
LINDAHL REED, INC. 47QRAA18D00GR 541/638-9264 REDMOND ,OR s/w/wo/ew/d/8a
LINC RESEARCH, INC 47QRAA20D008M 2565365157 HUNTSVILLE ,AL s/h
LEONARDO TECHNOLOGIES, INC.       47QRAA21D000U 7409682222X104 SAINT CLAIRSVILLE ,OH s
LEONARDO TECHNOLOGIES, INC.       GS-23F-0231R 7409682222X104 SAINT CLAIRSVILLE ,OH s
LELAND SAYLOR ASSOCIATES INC 47QRAA19D00AZ 415-291-4930 WALNUT CREEK ,CA s/dv
LEIDOS, INC. GS-00F-022CA (571) 526-7305 RESTON ,VA o
LANMARK TECHNOLOGY INC.       47QRAA19D006S 703-447-3876 CENTREVILLE ,VA s/w/wo/dv/d
L3HARRIS TECHNOLOGIES, INC. GS-23F-0058M 321-729-3887 PALM BAY ,FL o
KULJIAN CORPORATION, THE 47QRAA21D002G 2156946464 BRISTOL ,PA s
KRAMER CONSULTING SERVICES, PC 47QRAA19D001M 2023399000 WASHINGTON ,DC s
KORD TECHNOLOGIES, LLC GS-10F-0087Y (256)489-2346 HUNTSVILLE ,AL o  
KOKUA SUPPORT SERVICES CORPORATION 47QRAA19D0012 757-243-8462 NEWPORT NEWS ,VA s/d
KODA TECHNOLOGIES INC. 47QRAA19D0081 256-509-2710 HUNTSVILLE ,AL s/w/wo/d
KNOWESIS, INC. GS-10F-0165W 571-421-1101 SAN ANTONIO ,TX o
KNIGHTO, LLC 47QRAA20D000N 703-779-0900 LEESBURG ,VA s/dv/d/h
KMEA 47QRAA20D006G 619-787-0515 NATIONAL CITY ,CA o
KINETIC METRICS, LLC 47QRAA20D000K 7036476221 ALEXANDRIA ,VA s/d/8a
KIMLEY-HORN AND ASSOCIATES, INC. GS-10F-0501X 919 677-2000 RALEIGH ,NC o
KIHOMAC, INC.       GS-10F-0173T 719-393-5081 RESTON ,VA s/v/d
KEYW CORPORATION, THE GS-00F-001DA (703)984-4305 HANOVER ,MD o  
KEVILLE ENTERPRISES, INC GS-23F-0235S (617)482-3888 MARSHFIELD ,MA s/w  
KENTCO CORPORATION 47QRAA20D000S 571-665-4199 HERNDON ,VA s/dv
KENNINGTON & GUNENC, LLC GS-00F-441GA (202)439-8657 WASHINGTON ,DC s/w/wo  
KENJYA-TRUSANT GROUP, LLC, THE GS-00F-137DA 410-740-4045 COLUMBIA ,MD o
KENIFIC GROUP INC, THE 47QRAA19D00C7 571-636-4002 FAIRFAX ,VA s/d
KEMSYSTEK, LLC 47QRAA20D0047 732-571-6400 ALEXANDRIA ,VA s/w/wo/dv/d
KELLER-BLIESNER ENGINEERING, LLC       47QRAA18D004Q 435-753-5651 LOGAN ,UT s
KCM CONSULTING, LLC 47QRAA18D000F (210)331-7600 SAN ANTONIO ,TX s    
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K2 GROUP, INC. 47QTCA19D00FZ 5714212070 VIENNA ,VA s/dv
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INVARIANT CORPORATION GS-23F-0315P 256-885-9794 HUNTSVILLE ,AL s
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DEFENSE ARCHITECTURE SYSTEMS, INC. GS-00F-291GA 443-831-3055 FULTON ,MD s
DEFENSE ACQUISITION SUPPORT SERVICES L.L.C. 47QRAA19D008L (443)303-3192 ABERDEEN ,MD s/w/wo  
DECON ENGINEERING, INC. GS-21F-0004U 7038614930 STERLING ,VA s
DECISIVE ANALYTICS CORPORATION GS-00F-129CA 7034145016 ARLINGTON ,VA o
DECIBEL RESEARCH, INC GS-10F-0029Y 2564896193 HUNTSVILLE ,AL s
DCS-MILLENNIUM LLC 47QRAA18D0038 (571)227-6211 ALEXANDRIA ,VA s/dv/d  
DCS CORPORATION       47QRAA20D006W 5712276226 ALEXANDRIA ,VA o
DAYTON T. BROWN, INC.       47QRAA19D00A4 (631)589-6300 BOHEMIA ,NY s    
DAVIS STRATEGIC INNOVATIONS, INC. GS-10F-225BA 256-489-0550 HUNTSVILLE ,AL s/dv
DAVIS DEFENSE GROUP, INC. GS-10F-0190R 540-548-5950 STAFFORD ,VA o
DAVIDSON BROWN, INC. GS-10F-0279X 7573698403 WILLIAMSBURG ,VA s/d/8a
DAVID CLARK COMPANY INCORPORATED       GS-10F-0467Y (508)756-6216 WORCESTER ,MA s  
DAV ENERGY SOLUTIONS GS-00F-314GA (619) 356-1147 SAN DIEGO ,CA s/dv
DATA MONITOR SYSTEMS, INC. GS-10F-0281P 405-737-7950 MIDWEST CITY ,OK s/dv/d/8a
DARKBLADE SYSTEMS CORPORATION GS-00F-012GA 703-409-9439 WINCHESTER ,VA s/dv
DAMA CONSULTANTS, INC 47QRAA19D0037 (815)979-4407 CHICAGO ,IL s/d/8a/h    
D&G SUPPORT SERVICES, LLC GS-00F-131DA 7034033463 WOODBRIDGE ,VA s/w/wo/ew/dv/d
D P ASSOCIATES, INC. GS-10F-0361U 256-837-8300 HUNTSVILLE ,AL s/w/wo/ew/d
CZERO, INC. GS-10F-0081X 9703725775 FORT COLLINS ,CO s
CURTAIN WALL DESIGN AND CONSULTING, INCORPORATED GS-00F-190GA 972-437-4200 DALLAS ,TX s
CULMEN INTERNATIONAL, LLC 47QRAA18D006D 703-224-7000 ALEXANDRIA ,VA o
CSRA LLC GS-00F-313CA (571)446-5340 FALLS CHURCH ,VA o
CRUZ ASSOCIATES INC. GS-10F-0379U 757-833-7538 YORKTOWN ,VA s
CRS CONSULTING ENGINEERS, INCORPORATED       47QRAA19D004X 801-359-5565 SALT LAKE CITY ,UT s/d
CROWN CONSULTING, INC. GS-00F-038DA 703-650-0663 ARLINGTON ,VA o
CROSSTEK SOLUTIONS, LLC GS-00F-230GA 334-467-6860 VICKSBURG ,MS s
CROSSROADS SOLUTIONS LP       47QRAA20D005T 2566831939 KILLEN ,AL s
CROSSFLOW TECHNOLOGIES, INC 47QRAA18D008D 2564253680 ALBERTVILLE ,AL s
CREDENCE MANAGEMENT SOLUTIONS LIMITED LIABILITY COMPANY GS-10F-0432Y 571-395-8820 VIENNA ,VA s/d/8a
CREATIVE CORRECTIONS, L.L.C. GS-00F-013AA 409-866-9920 BEAUMONT ,TX s/dv
CREATIVE BUSINESS SOLUTIONS, INC.       47QRAA17D0005 301-509-9954 LARGO ,MD s/dv/d/8a/h
CRAWFORD CONSULTING SERVICES, INC GS-10F-0252Y 412-823-0400 EAST PITTSBURGH ,PA s/w/wo/d
CRAIG TECHNICAL CONSULTING, INC. GS-00F-040GA 321-613-5620 MERRITT ISLAND ,FL s/w/wo/ew/dv/d
CRAFT DESIGNS, INC.       47QRAA18D00A3 2566500536 HUNTSVILLE ,AL s/w/wo/d
CORTINA SOLUTIONS, LLC GS-00F-205DA 256-319-2024 HUNTSVILLE ,AL s/w/wo/ew/h
CORTEK, INC. GS-10F-0330X 703-430-8809 FREDERICKSBURG ,VA s/dv
CORPORATE ALLOCATION SVCS, INC. GS-10F-0311U 303-920-7264 WESTMINSTER ,CO s/w/d/8a
CORNFORTH CONSULTANTS, INC. 47QRAA20D007K 503-452-1100 PORTLAND ,OR s
CORNERSTONE SIGNALS & CYBER TECHNOLOGIES LLC       47QRAA19D0003 720-206-6718 CHRISTOVAL ,TX s/w/wo/ew/dv/d
CORNERSTONE CONCILIUM, INC GS-00F-0007S (415)705-7800 SAN FRANCISCO ,CA s/d
COOPER ZIETZ ENGINEERS, INC GS-10F-0337T 5036529090 PORTLAND ,OR s/v/d/h
CONTRACT SOLUTIONS LLC GS-00F-285CA 703-855-7980 PAWLEYS ISLAND ,SC s
CONSTRUCTION-CAD SOLUTIONS, INCORPORATED 47QRAA19D000X (630)908-3400 WILLOWBROOK ,IL s/d    
CONSTRUCTION SUPPORT SOLUTIONS, LLC GS-10F-106BA 440-541-6642 AVON LAKE ,OH s/w/wo
CONCURRENT TECHNOLOGIES CORPORATION 47QRAA21D0021 814-269-2871 JOHNSTOWN ,PA o
CONCOURSE FEDERAL GROUP, LLC GS-00F-058GA 8439066688 ALEXANDRIA ,VA s/dv/d/h
CONCORD CONSULTING GROUP OF ILLINOIS, INC., THE 47QRAA21D004D (414)225-5305 CHICAGO ,IL s    
COMPUTERCRAFT CORPORATION GS-00F-262GA 571-266-3362 WASHINGTON ,DC s/w/wo
COLUMBIA GROUP, INC, THE GS-00F-201CA 2026088415 WASHINGTON ,DC s
COLSA CORPORATION GS-00F-293CA 2569645276 HUNTSVILLE ,AL o
COGENT SECURITY CONSULTING LLC GS-00F-301DA (855) 226-4368 X1 ALEXANDRIA ,VA s
CODE PLUS INC GS-35F-282CA (703) 846-0030 FAIRFAX ,VA s/w/wo/d/8a
COAST AND HARBOR ASSOCIATES, INCORPORATED GS-10F-0013U 7812243870 LYNNFIELD ,MA s/w/d/8a
COASPIRE, LLC 47QRAA20D0037 (703)915-0582 FAIRFAX ,VA s/dv  
CNA CORPORATION, THE 47QRAA18D003X 7038242082 ARLINGTON ,VA o
CMT SERVICES, INC. 47QRAA19D008U 2028098785 HYATTSVILLE ,MD s/w/wo/h
CLIENT SOLUTION ARCHITECTS LLC GS-10F-0051T 619-813-2906 MECHANICSBURG ,PA o
CLASON POINT PARTNERS INC.       47QRAA20D001W 914-377-0301 YONKERS ,NY s/d/8a
CIVIL DESIGN & ENGINEERING INC GS-10F-263AA (928) 522-9287 FLAGSTAFF ,AZ s/w/wo/d
CITRINE ENERGY LLC 47QRAA19D008Z 303-330-5385 DENVER ,CO s/h
CINTEL, INC. GS-00F-268GA 256-213-1600 EXT. 10 HUNTSVILLE ,AL s
CINNOVAS DEVELOPMENT GROUP, LLC GS-10F-0248Y (202) 469-3446 WASHINGTON ,DC s/d/h
CIMARRON SOFTWARE SERVICES, INC.       47QRAA19D004Y 8324033337 HOUSTON ,TX s/w/wo
CHITRA PRODUCTIONS GS-00F-271CA 7574950234 NORFOLK ,VA s/w/wo/ew/d/h
CHIMERA ENTERPRISES INTERNATIONAL, INCORPORATED       47QRAA18D0034 (443)739-8187 EDGEWOOD ,MD s/dv
CHEROKEE NATION TECHNOLOGY SOLUTIONS, L.L.C. GS-00F-330GA 918-430-3407 CATOOSA ,OK o
CHEROKEE NATION RED WING, L.L.C. GS-00F-007DA 918-430-3426 TULSA ,OK s/d/h
CHEROKEE NATION MANAGEMENT & CONSULTING, L.L.C. GS-00F-302GA 210-323-4113 CATOOSA ,OK s/d/8a
CHENEGA TECHNICAL INNOVATIONS, LLC 47QRAA19D0096 703-493-9880 CHANTILLY ,VA o
CGI FEDERAL INC. GS-00F-302CA (703) 227-4882 FAIRFAX ,VA o
CGH TECHNOLOGIES, INC. 47QRAA18D00DD 202-580-7401 WASHINGTON ,DC s/w/wo
CFR ENGINEERING CONSULTANTS, INC 47QRAA18D00DC 877.871.4229 GAITHERSBURG ,MD s
CFD RESEARCH CORPORATION GS-10F-0184Y 256-361-0801 HUNTSVILLE ,AL s
CERVELLO TECHNOLOGIES, L.L.C. 47QRAA18D003E (727) 303-3001 CLEARWATER ,FL s/dv/d
CEPEDA SYSTEMS & SOFTWARE ANALYSIS, INC.       GS-00F-224GA (256) 428-8186 HUNTSVILLE ,AL s/w/wo/ew/d/h
CENTURUM INFORMATION TECHNOLOGY, INC. 47QRAA19D00AM 843-609-5649 MARLTON ,NJ o
CENTRA TECHNOLOGY, INC. GS-00F-0020Y 7812727892 BURLINGTON ,MA o
CENTAURI, LLC GS-23F-0076M (703)674-1265 CHANTILLY ,VA s/v  
CDM FEDERAL PROGRAMS CORPORATION GS-00F-085CA 303-383-2300 FAIRFAX ,VA o
CBRE, INC 47QRAA21D0038 703-980-3881 WASHINGTON ,DC o
CBRE HEERY, INC. 47QRAA19D00AP (404)946-2432 ATLANTA ,GA o
CATALYST SOLUTIONS, LLC       GS-00F-412GA (504)623-5458 STAFFORD ,VA s/dv/d  
CATALINA ASSOCIATES, LLC 47QRAA21D002N (703)868-8027 GAMBRILLS ,MD s/w/wo/d    
CASSIDY CONSULTING GROUP, LLC 47QRAA18D007E (703)980-8928 HERTFORD ,NC s/w/wo/d/h
CARDNO GS, INC. GS-00F-196CA 9165487783 CHARLOTTESVILLE ,VA o
CAPITAL PROJECT MANAGEMENT, INC. GS-10F-0021T 267-464-0500 BLUE BELL ,PA s
CAPABILITY ANALYSIS & MEASUREMENT ORGANIZATION LLC 47QRAA20D0048 937-458-3719; X412 BEAVERCREEK ,OH s/dv
CANYON CONSULTING, LLC 47QRAA18D0065 (949)351-7235 LOS ANGELES ,CA s/w/wo/ew/d  
CANVAS, INC. GS-10F-0195Y 256-489-2988 HUNTSVILLE ,AL s/w/wo/h
CAMBRIDGE INTERNATIONAL SYSTEMS INC.       47QRAA18D005T 5713198919 ARLINGTON ,VA o
CAE USA MISSION SOLUTIONS INC GS-10F-0310L 757-378-5315 TAMPA ,FL o
CACI INC FEDERAL GS-00F-268CA 703-679-3412 CHANTILLY ,VA o
C4 PLANNING SOLUTIONS, LLC 47QRAA18D006V 706-592-3095 x104 BLYTHE ,GA o  
C2 TECHNOLOGY SOLUTIONS INC. GS-35F-272GA 410-794-6792 COLUMBIA ,MD s/d/8a
C2 TECHNOLOGIES INC 47QRAA18D006A 703-752-2139 VIENNA ,VA o
C. H. GUERNSEY & COMPANY 47QRAA19D00DM 405-416-8278 OKLAHOMA CITY ,OK o
BW SPRAGUE CONSULTING SERVICES, INC. 47QRAA19D0018 (844)470-8802 TAMPA ,FL s/v  
BURNS ENGINEERING, INC. 47QRAA19D00AF (215)979-7701 PHILADELPHIA ,PA o  
BURDETTE ENGINEERING INC 47QRAA21D003A 864-297-8717 GREENVILLE ,SC s
BUILDING PEOPLE, LLC, THE GS-00F-237GA (703) 669.2222 LEESBURG ,VA s/d/8a/h
BSI ENGINEERING, LLC       GS-00F-368GA (513)201-3170 CINCINNATI ,OH s  
BRYCE SPACE AND TECHNOLOGY, LLC 47QRAA18D00AN 7036472742 ALEXANDRIA ,VA s/w/wo
BROWN CONSTRUCTION SERVICES INC GS-00F-163CA 703-599-3481 ANNANDALE ,VA s/w/wo
BRMI CONSULTING, INC. GS-10F-0143T (301)280-0164 SILVER SPRING ,MD o  
BRMI CONSULTING, INC. GS-35F-0490W 443-418-6674 SILVER SPRING ,MD o
BRILLIGENT SOLUTIONS, INC. 47QRAA18D0062 (937)879-4148 FAIRBORN ,OH s  
BRATSLAVSKY CONSULTING ENGINEERS, INC. GS-00F-071CA 9072807619 ANCHORAGE ,AK s
BRANCHPATTERN, INC. 47QRAA21D004X (402)464-3833 LINCOLN ,NE s/d    
BRADSHAW ENGINEERING AND TECHNICAL SERVICES, LLC GS-00F-183DA 256-603-6471 HUNTSVILLE ,AL s
BOUNDS ASSOCIATES, LLC GS-10F-115CA 7033450608 ALEXANDRIA ,VA s/dv
BOSTON GOVERNMENT SERVICES, LLC GS-00F-013GA (202)262-8098 LENOIR CITY ,TN s/d/8a
BOOZ ALLEN HAMILTON INC.       GS-00F-008DA 703-377-4359 MCLEAN ,VA o
BONHAM TECHNOLOGIES, INC. GS-00F-194GA 256-864-2340 HUNTSVILLE ,AL s/dv
BOHANNAN-HUSTON, INC. GS-00F-0001Y 505-798-7925 ALBUQUERQUE ,NM o
BOEING AEROSPACE OPERATIONS, INC. 47QRAA20D0079 314-563-7049 SAINT LOUIS ,MO o
BNA CONSULTING, LLC 47QRAA20D000M (801)781-0016 SALT LAKE CITY ,UT s/d  
BMT DESIGNERS & PLANNERS, INC. GS-00F-337CA 703-920-7070 ARLINGTON ,VA o
BLUMONT ENGINEERING SOLUTIONS, INC. 47QRAA18D00AP (202)600-2571 ARLINGTON ,VA o  
BLUEWATER FEDERAL SOLUTIONS, INC.       47QRAA20D001S 703-371-7914 CHANTILLY ,VA o
BLUE SKY INNOVATORS INC. 47QRAA20D001N 571-261-6385 FAIRFAX ,VA s
BLACK HALL AEROSPACE, INC. GS-00F-316GA (571)752-1128 HUNTSVILLE ,AL s/dv  
BLACK DIAMOND CONSULTING CORPORATION GS-00F-292GA 703-434-1886 ASHBURN ,VA s/d
BIZSOLUTIONS 360 GS-10F-213AA 2025880560 WASHINGTON ,DC s/d
BINERA, INC. GS-00F-048CA 757-867-8538 YORKTOWN ,VA s/w/wo/ew
BIGELOW FAMILY HOLDINGS LLC 47QRAA18D00C5 586-306-8962 STERLING HEIGHTS ,MI s/w/wo/ew/dv/d/8a
BFA SYSTEMS, INC. GS-10F-0303T 256-704-3201 HUNTSVILLE ,AL s/dv
BERKELEY RESEARCH GROUP LLC 47QRAA18D006Z 202-480-2700 EMERYVILLE ,CA o
BENNETT ENGINEERING SERVICES INC 47QRAA19D00BU 916-783-4100 ROSEVILLE ,CA s/w/wo/d
BENNETT AEROSPACE, INC.       47QRAA20D003H 9196365185 RALEIGH ,NC s/w/wo/ew/v/d/8a
BEACON SYSTEMS, INC 47QRAA18D0091 954-426-1171 CORAL SPRINGS ,FL s/w/wo/ew/d
BCS, LLC GS-00F-269CA 410-997-7778 WASHINGTON ,DC s
BCF SOLUTIONS, INC. 47QRAA19D007K 703-239-3928 CHANTILLY ,VA o
BB&E, INC. 47QRAA20D007E 2484899636 NORTHVILLE ,MI s
BB&E, INC. GS-10F-0103N 2484899636 NORTHVILLE ,MI s
BAYFIRST SOLUTIONS LLC GS-10F-0356Y 202-541-1010 WASHINGTON ,DC s/d
BATTELLE MEMORIAL INSTITUTE GS-00F-084CA 614-424-3522 COLUMBUS ,OH o
BASTION TECHNOLOGIES, INC. 47QRAA19D007C 281-283-9359 HOUSTON ,TX s/d
BASTION TECHNOLOGIES, INC. GS-00F-0040P 281-283-9359 HOUSTON ,TX o
BARBARICUM LLC GS-00F-206CA (202) 393-0873 WASHINGTON ,DC o
BANNER DEFENSE, INC. 47QRAA19D004Q 256-970-8795 MADISON ,AL s/dv
BANDWIDTH SOLUTIONS INC
(DBA: BSII GROUP)
GS-23F-0295P (703)966-4478 MC LEAN ,VA s/w
BAKR GROUP, L.L.C. GS-10F-0291Y 941-363-0129 SARASOTA ,FL s
BAKER PROJECT CONSULTING, LLC GS-10F-0031W 202-468-1957 WASHINGTON ,DC s
BAE SYSTEMS TECHNOLOGY SOLUTIONS & SERVICES INC. GS-00F-240CA 301-738-5979 ROCKVILLE ,MD o
BACIK GROUP LLC GS-00F-017CA 205-358-9851 PELHAM ,AL s/dv
B3H CORPORATION 47QRAA18D0025 (850)651-3443 SHALIMAR ,FL s/dv  
B3GLOBALCON, LLC       GS-00F-226GA (804)519-9808 MIDLOTHIAN ,VA s/dv/d  
AZIMUTH CORPORATION GS-10F-0352R 937-256-8571 BEAVERCREEK ,OH o
AXIOM CONSULTANTS INC. 47QRAA19D0077 703-599-1502 ROCKVILLE ,MD s/w/wo/ew/d/8a
AXIAS, INC. 47QRAA18D004N 7037060423 ALEXANDRIA ,VA s/d
AVUM, INC. 47QRAA20D001K 310-457-8263 X6001 AGOURA HILLS ,CA s/d
AVNIK DEFENSE SOLUTIONS INC GS-10F-219AA 256-513-5295 HUNTSVILLE ,AL s/w/wo
AVMAC LLC       47QMCA20D0043 (757) 995-2029 CHESAPEAKE ,VA s/dv/d/8a
AVIONICS TEST & ANALYSIS CORPORATION GS-23F-0180N (850)897-5444 NICEVILLE ,FL s/w/wo  
AVION SOLUTIONS, INC.
(DBA: AVION)
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AVIATION & MISSILE SOLUTIONS, LLC GS-23F-0017P 256-713-5903 HUNTSVILLE ,AL o
AVIAN, INC. 47QRAA18D006L 301-866-2070 EXT. #1 LEXINGTON PARK ,MD s/dv
AVALON BUSINESS ENGINEERING SERVICES, LLC 47QRAA20D003E 801 668-5823 CLEARFIELD ,UT s/w/wo/ew/dv/d/8a
AUGUR CONSULTING INC       47QRAA19D003S 7038285295 ARLINGTON ,VA s/dv
ATMOSPHERIC AND ENVIRONMENTAL RESEARCH, INC. GS-10F-0313Y 781-761-2380 LEXINGTON ,MA o
ATKINSON AERONAUTICS & TECHNOLOGY, INC. 47QRAA18D009W (561)640-9171 FREDERICKSBURG ,VA s/dv  
ATKINS NORTH AMERICA, INC. 47QRAA21D002Z 813 281 4430 TAMPA ,FL o
ATKINS NORTH AMERICA, INC. GS-00F-007AA 813-281-4430 TAMPA ,FL o
ATI, INC. 47QRAA18D00E9 410-992-3424 COLUMBIA ,MD s/d/8a
ATA SERVICES INC GS-23F-0088V 866-550-4282 LAKEWOOD ,CO s/v/d
AT&T GOVERNMENT SOLUTIONS, INC. GS-00F-350CA 7033429859 OAKTON ,VA o
ASU RESEARCH ENTERPRISE 47QRAA18D0082 (480)884-0401 SCOTTSDALE ,AZ o  
ASSURED INFORMATION SECURITY, INC. GS-00F-235GA (315)336-3306 ROME ,NY s  
ASR INTERNATIONAL CORP. GS-00F-283CA 6312311086 HAUPPAUGE ,NY s/d
ASCENSION GLOBAL SOLUTIONS, LLC 47QRAA19D009Y 781-254-9020 NORTH BILLERICA ,MA s/w/wo/dv/d
ASCA, INC.       GS-23F-0049R (310)316-6249 REDONDO BEACH ,CA s  
ASAP, LLC GS-00F-174GA (202)234-8933 GREAT FALLS ,VA s/w/wo  
ART ANDERSON ASSOCIATES, INC.       GS-10F-0159U 3604795600 BREMERTON ,WA s/v
ARORA ENGINEERS, INC. GS-00F-083DA (202)534-1756 CHADDS FORD ,PA s  
ARMAND CORPORATION GS-10F-0440X 856-489-8200 NEW YORK ,NY s/w/wo/ew/d
ARION SYSTEMS, INC. 47QRAA19D00DS 703-815-1130 X1112 CHANTILLY ,VA s
ARGO SYSTEMS, LLC GS-10F-0335T (443)270-6824 HANOVER ,MD o  
AREVALOS TRADE COMPANY, LLC 47QRAA21D000L (830)328-0335 SAN ANTONIO ,TX s/d/h    
ARES CORPORATION 47QRAA21D003Z (703)714-9960 BURLINGAME ,CA o    
ARCTOS TECHNOLOGY SOLUTIONS, LLC GS-23F-0240L (937)426-2808 DAYTON ,OH s  
ARCHARITHMS, INC. GS-00F-175DA 256-763-8781 HUNTSVILLE ,AL s/h
ARCANUM GROUP, INC., THE GS-10F-0324X 303-693-7263 DENVER ,CO s/dv
APTIVE RESOURCES LLC GS-07F-281BA 571-210-4500 ALEXANDRIA ,VA s/w/wo/ew/dv/d
APSI CONSTRUCTION MANAGEMENT GS-23F-0054S 949-679-0202 IRVINE ,CA s
APPLIED TECHNOLOGY, INC. 47QRAA19D00CC 540-663-0050 KING GEORGE ,VA s
APPLIED TECHNOLOGIES GROUP, INC. GS-10F-065AA 256-533-3471 HUNTSVILLE ,AL s/w/wo/ew/d/8a
APPLIED RESEARCH SOLUTIONS, INC GS-00F-135GA 937-912-6100 BEAVERCREEK ,OH s
APPLIED INSIGHT, LLC GS-00F-145GA 703-554-1650 TYSONS ,VA o
APOGEE SOLUTIONS, INC. 47QRAA18D009D 757-549-2645 CHESAPEAKE ,VA s/w/wo
APOGEE ENGINEERING, LLC GS-10F-0242W 719-418-4981 COLORADO SPRINGS ,CO s/d/8a
ANTARES GROUP INCORPORATED       47QRAA19D008S 301-731-1900 X 220 EDGEWATER ,MD s
ANDROMEDA SYSTEMS INCORPORATED GS-10F-0300Y 904-402-8661 VIRGINIA BEACH ,VA s/dv
ANDREWS CONSULTING SERVICES LLC       47QRAA20D004A 7193227041 BEALETON ,VA s/w/wo
ANDERSON ENGINEERING OF MINNESOTA, LLC       47QRAA18D006J 763-412-4000 MINNEAPOLIS ,MN s/dv