BesaGov

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 2026-06-23.

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 24
2 Chemonics International, Inc. Washington 541990 $808.69M 255
3 United Nations World Food Programme Washington 561990 $683.73M 5
4 Washington Metropolitan Area Transit Authority Washington 485111 $485.73M 1,024
5 Domestic Awardees (Undisclosed) Washington 561612 $451.13M 15,457
6 District Of Columbia Washington 562119 $358.23M 8
7 Acacia Center For Justice Washington 541110 $326.09M 11
8 District Of Columbia, Government Of Washington 541720 $257.96M 1
9 Hpi Federal Llc Washington 334111 $219.20M 4,637
10 International Organization For Migration Washington 928120 $208.31M 6
11 Bcg Federal Corp. Washington 541611 $182.28M 26
12 Software Information Resource Corp. Washington 541511 $170.41M 2,031
13 Metropolitan Washington Airports Authority Washington 488119 $149.62M 140
14 Advantaged Solutions, Llc Washington 518210 $133.48M 104
15 National Academy Of Sciences Washington 541990 $120.93M 1,342
16 Association Of Universities For Research In Astronomy, Inc. Washington 541990 $120.49M 3
17 Miscellaneous Foreign Awardees Washington 335999 $115.88M 208,265
18 Associated Universities Inc Washington 541715 $110.40M 5
19 Stratacomm, Llc Washington 541810 $103.70M 24
20 Iron Vine Security Llc Washington 541519 $101.39M 27
21 Franklin Court Inc Washington 531120 $94.41M 216
22 National Fish And Wildlife Foundation Washington 813312 $92.52M 3
23 Potomac Electric Power Co Washington 221118 $92.00M 289
24 Georgetown University Washington 611310 $84.77M 168
25 Federal Center Office Associates Llc Washington 541330 $71.29M 88
26 Nava Pbc Washington 541511 $68.42M 22
27 Gryphon Technologies, L.C. Washington 541330 $68.28M 175
28 Anduril Industries, Inc. Washington 336419 $68.00M 24
29 Coforma Llc Washington 541519 $64.73M 31
30 Foreign Utility Consolidated Reporting Washington 926130 $61.36M 240
31 Aarp Foundation Washington 513120 $60.97M 1
32 Mckenzie Construction & Site Development Llc Washington 236220 $59.45M 86
33 Evcon-Cwc Jv Llc Washington 236220 $58.92M 8
34 Dc Water & Sewer Authority Washington 221310 $58.64M 32
35 General Secretariat Of The Organization Of American States Washington 541618 $58.36M 11
36 Veracity Engineering Llc Washington 541330 $54.85M 58
37 Porter Novelli Public Services Inc. Washington 541810 $54.73M 83
38 Fort Myer Construction Corp Washington 237310 $54.39M 24
39 Albert B. Sabin Vaccine Institute, Inc. (The) Washington 541714 $53.33M 2
40 Obsidian Global, Llc Washington 541512 $52.41M 29
41 Ernst & Young Llp Washington 541611 $50.81M 148
42 Mckinsey & Company, Inc. Washington D.C. Washington 541611 $47.12M 123
43 Global Automotive, Inc. Washington 336110 $47.04M 1,350
44 Xerox Corporation Washington — $45.91M 12,563
45 American Chemical Society Washington 519290 $42.23M 122
46 Strategix Management Llc Washington 611519 $41.25M 42
47 District Of Columbia, Government Of Washington 517810 $40.97M 1
48 Jones Lang Lasalle Americas, Inc. Washington 531210 $38.96M 1,360
49 Improving Economies For Stronger Communities Washington 541990 $38.10M 2
50 Elizabeth Glaser Pediatric Aids Foundation Washington 541990 $35.74M 2

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.