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Top federal contractors in Connecticut

1,088 SAM.gov-registered federal contractors based in Connecticut. Ranked by lifetime federal award amount. Updated 2026-05-07.

Firms tracked
1,088
Top-50 lifetime $
$29.01B
Top NAICS
8

Top 50 federal contractors in Connecticut

# Firm City NAICS Lifetime $ Contracts
1 ELECTRIC BOAT CORPORATION GROTON 332722 $16.12B 0
2 RTX CORPORATION EAST HARTFORD 336412 $4.89B 0
3 SIKORSKY AIRCRAFT CORPORATION STRATFORD 336412 $4.49B 0
4 YALE UNIV NEW HAVEN 611310 $773.46M 0
5 CONNECTICUT DEPARTMENT OF EDUCATION HARTFORD 541720 $646.95M 0
6 DEPARTMENT OF PUBLIC HEALTH CONNECTICUT HARTFORD 518210 $187.37M 0
7 HAMILTON SUNDSTRAND CORPORATION WINDSOR LOCKS 336413 $176.73M 0
8 STATE OF CONNECTICUT LABOR DEPT WETHERSFIELD 921190 $133.41M 0
9 UNIVERSITY OF CONNECTICUT STORRS 541715 $121.19M 0
10 DEPT OF ENERGY & ENVIRONMENTAL PROTECTION HARTFORD 923120 $119.80M 0
11 AMERITECH CONTRACTING LLC BERLIN 238220 $102.85M 0
12 REGAN TECHNOLOGIES CORP MIDDLETOWN 541519 $96.60M 0
13 MENTAL HEALTH & ADDICTION SERVICES CONNE HARTFORD 923120 $79.89M 0
14 RITE-SOLUTIONS, INC. PAWCATUCK 334419 $74.13M 0
15 CW RESOURCES, INC. NEW BRITAIN 561720 $66.92M 0
16 UNIVERSITY OF CONNECTICUT HEALTH CENTER FARMINGTON 611310 $57.80M 0
17 CELEEN LLC MASHANTUCKET 541330 $57.12M 0
18 DANBURY MISSION TECHNOLOGIES, LLC DANBURY 334511 $55.06M 0
19 UNIVERSITY OF CONNECTICUT STORRS MANSFIELD 923110 $53.75M 0
20 CARTUS CORPORATION DANBURY 531390 $47.63M 0
21 SONALYSTS INC WATERFORD 611430 $47.27M 0
22 MCLAUGHLIN RESEARCH CORPORATION NEW LONDON 541330 $45.75M 0
23 PITNEY BOWES INC. STAMFORD 532420 $40.60M 0
24 PLOWSHARE GROUP, INC STAMFORD 541810 $39.00M 0
25 EMPRISE CORPORATION LEDYARD 541330 $38.79M 0
26 GARTNER, INC. STAMFORD 541519 $37.20M 0
27 EMERGENCY SERVICES AND PUBLIC PROTECTION, DEPARTMENT OF MIDDLETOWN 922120 $36.95M 0
28 ACMT, INC. MANCHESTER 336412 $34.98M 0
29 LIFECARE, INC SHELTON 541110 $27.89M 0
30 APPLIED PHYSICAL SCIENCES CORP GROTON 541715 $25.45M 0
31 MOHAWK NORTHEAST INC PLANTSVILLE 336611 $24.46M 0
32 IPSOS PUBLIC AFFAIRS, LLC NORWALK 541611 $22.99M 0
33 ERI SERVICES, INC. BRIDGEPORT 541330 $22.53M 0
34 ENSIGN-BICKFORD AEROSPACE & DEFENSE COMPANY SIMSBURY 325998 $19.36M 0
35 TRIUMPH ENGINE CONTROL SYSTEMS LLC WEST HARTFORD 336413 $17.25M 0
36 MASHANTUCKET PEQUOT TRIBAL NATION MASHANTUCKET 561920 $15.91M 0
37 COLT'S MANUFACTURING COMPANY, LLC WEST HARTFORD 332994 $15.49M 0
38 ETHAN ALLEN RETAIL, INC. DANBURY 337122 $13.68M 0
39 CITY OF NEW HAVEN NEW HAVEN 531190 $13.43M 0
40 TREADWELL CORPORATION (DELAWARE) THOMASTON 333613 $11.94M 0
41 SAVE THE CHILDREN FEDERATION, INC. FAIRFIELD 541990 $11.91M 0
42 O F MOSSBERG & SONS INC NORTH HAVEN 332994 $11.81M 0
43 HARTFORD HOSPITAL HARTFORD 611310 $11.80M 0
44 SURVIVAL SYSTEMS USA INC GROTON 532490 $10.95M 0
45 THE HARTFORD PROVISION COMPANY SOUTH WINDSOR 311991 $10.57M 0
46 BEACON INDUSTRIES, INC. NEWINGTON 336412 $10.54M 0
47 MURRAY BENJAMIN ELECTRIC CO LLC STAMFORD 335999 $10.14M 0
48 ROTAIR AEROSPACE CORP BRIDGEPORT 332510 $9.74M 0
49 PRECISION COMBUSTION, INC. NORTH HAVEN 541715 $9.54M 0
50 WARD LEONARD CT LLC THOMASTON 335312 $9.53M 0

Top NAICS in Connecticut

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FAQ

How many federal contractors are based in Connecticut?

BesaGov tracks 1,088 SAM.gov-registered firms whose physical state of business is Connecticut. The list updates weekly as new entities register or update their SAM profile.

Who are the largest federal contractors in Connecticut?

By lifetime federal award amount, the largest Connecticut-based contractors include ELECTRIC BOAT CORPORATION, RTX CORPORATION, SIKORSKY AIRCRAFT CORPORATION. See the full top-50 list above.

Can I get notified when a new firm registers in Connecticut?

Yes. Sign up for the free weekly Connecticut 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.