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Top federal contractors in District of Columbia

1,833 SAM.gov-registered federal contractors based in District of Columbia. Ranked by lifetime federal award amount. Updated 2026-05-07.

Firms tracked
1,833
Top-50 lifetime $
$10.69B
Top NAICS
8

Top 50 federal contractors in District of Columbia

# Firm City NAICS Lifetime $ Contracts
1 DISTRICT OF COLUMBIA, GOVERNMENT OF WASHINGTON 518210 $3.83B 0
2 CHEMONICS INTERNATIONAL, INC. WASHINGTON 541990 $808.69M 0
3 UNITED NATIONS WORLD FOOD PROGRAMME WASHINGTON 561990 $683.73M 0
4 WASHINGTON METROPOLITAN AREA TRANSIT AUTHORITY WASHINGTON 485111 $485.73M 0
5 DOMESTIC AWARDEES (UNDISCLOSED) WASHINGTON 561612 $451.13M 0
6 DISTRICT OF COLUMBIA WASHINGTON 562119 $358.23M 0
7 ACACIA CENTER FOR JUSTICE WASHINGTON 541110 $326.09M 0
8 DISTRICT OF COLUMBIA, GOVERNMENT OF WASHINGTON 541720 $257.96M 0
9 HPI FEDERAL LLC WASHINGTON 334111 $219.20M 0
10 INTERNATIONAL ORGANIZATION FOR MIGRATION WASHINGTON 928120 $208.31M 0
11 BCG FEDERAL CORP. WASHINGTON 541611 $182.28M 0
12 SOFTWARE INFORMATION RESOURCE CORP. WASHINGTON 541511 $170.41M 0
13 METROPOLITAN WASHINGTON AIRPORTS AUTHORITY WASHINGTON 488119 $149.62M 0
14 ADVANTAGED SOLUTIONS, LLC WASHINGTON 518210 $133.48M 0
15 NATIONAL ACADEMY OF SCIENCES WASHINGTON 541990 $120.93M 0
16 ASSOCIATION OF UNIVERSITIES FOR RESEARCH IN ASTRONOMY, INC. WASHINGTON 541990 $120.49M 0
17 MISCELLANEOUS FOREIGN AWARDEES WASHINGTON 335999 $115.88M 0
18 ASSOCIATED UNIVERSITIES INC WASHINGTON 541715 $110.40M 0
19 STRATACOMM, LLC WASHINGTON 541810 $103.70M 0
20 IRON VINE SECURITY LLC WASHINGTON 541519 $101.39M 0
21 FRANKLIN COURT INC WASHINGTON 531120 $94.41M 0
22 NATIONAL FISH AND WILDLIFE FOUNDATION WASHINGTON 813312 $92.52M 0
23 POTOMAC ELECTRIC POWER CO WASHINGTON 221118 $92.00M 0
24 GEORGETOWN UNIVERSITY WASHINGTON 611310 $84.77M 0
25 FEDERAL CENTER OFFICE ASSOCIATES LLC WASHINGTON 541330 $71.29M 0
26 NAVA PBC WASHINGTON 541511 $68.42M 0
27 GRYPHON TECHNOLOGIES, L.C. WASHINGTON 541330 $68.28M 0
28 ANDURIL INDUSTRIES, INC. WASHINGTON 336419 $68.00M 0
29 COFORMA LLC WASHINGTON 541519 $64.73M 0
30 FOREIGN UTILITY CONSOLIDATED REPORTING WASHINGTON 926130 $61.36M 0
31 AARP FOUNDATION WASHINGTON 513120 $60.97M 0
32 MCKENZIE CONSTRUCTION & SITE DEVELOPMENT LLC WASHINGTON 236220 $59.45M 0
33 EVCON-CWC JV LLC WASHINGTON 236220 $58.92M 0
34 DC WATER & SEWER AUTHORITY WASHINGTON 221310 $58.64M 0
35 GENERAL SECRETARIAT OF THE ORGANIZATION OF AMERICAN STATES WASHINGTON 541618 $58.36M 0
36 VERACITY ENGINEERING LLC WASHINGTON 541330 $54.85M 0
37 PORTER NOVELLI PUBLIC SERVICES INC. WASHINGTON 541810 $54.73M 0
38 FORT MYER CONSTRUCTION CORP WASHINGTON 237310 $54.39M 0
39 ALBERT B. SABIN VACCINE INSTITUTE, INC. (THE) WASHINGTON 541714 $53.33M 0
40 OBSIDIAN GLOBAL, LLC WASHINGTON 541512 $52.41M 0
41 ERNST & YOUNG LLP WASHINGTON 541611 $50.81M 0
42 MCKINSEY & COMPANY, INC. WASHINGTON D.C. WASHINGTON 541611 $47.12M 0
43 GLOBAL AUTOMOTIVE, INC. WASHINGTON 336110 $47.04M 0
44 XEROX CORPORATION WASHINGTON — $45.91M 0
45 AMERICAN CHEMICAL SOCIETY WASHINGTON 519290 $42.23M 0
46 STRATEGIX MANAGEMENT LLC WASHINGTON 611519 $41.25M 0
47 DISTRICT OF COLUMBIA, GOVERNMENT OF WASHINGTON 517810 $40.97M 0
48 JONES LANG LASALLE AMERICAS, INC. WASHINGTON 531210 $38.96M 0
49 IMPROVING ECONOMIES FOR STRONGER COMMUNITIES WASHINGTON 541990 $38.10M 0
50 ELIZABETH GLASER PEDIATRIC AIDS FOUNDATION WASHINGTON 541990 $35.74M 0

Top NAICS in District of Columbia

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FAQ

How many federal contractors are based in District of Columbia?

BesaGov tracks 1,833 SAM.gov-registered firms whose physical state of business is District of Columbia. The list updates weekly as new entities register or update their SAM profile.

Who are the largest federal contractors in District of Columbia?

By lifetime federal award amount, the largest District of Columbia-based contractors include DISTRICT OF COLUMBIA, GOVERNMENT OF, CHEMONICS INTERNATIONAL, INC., UNITED NATIONS WORLD FOOD PROGRAMME. See the full top-50 list above.

Can I get notified when a new firm registers in District of Columbia?

Yes. Sign up for the free weekly District of Columbia digest above. We'll email you new SAM.gov registrations and award activity for the state — no login required.

Is this data official?

Firm registrations come from SAM.gov entity public extracts. Lifetime award totals come from USAspending.gov. Both are official U.S. government data sources, refreshed weekly.