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Federal contractors in Connecticut

112 federal prime contractors in Connecticut received $23.5B in prime contract obligations in the latest 12 months. The largest by obligations since FY2022 is Electric Boat Corporation, and the most common primary industries are Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology), Aircraft Engine and Engine Parts Manufacturing, and Commercial and Institutional Building Construction.

All 112 contractors

Ranked by prime contract obligations since FY2022. Open a profile for top agencies, recent awards, and contracts ending soon.

Federal contractors in Connecticut
ContractorPrimary NAICSLatest 12 moSince FY2022
Electric Boat Corporation336611 Ship Building and Repairing$10.9B$61.1B
RTX Corporation336412 Aircraft Engine and Engine Parts Manufacturing$8.2B$36.7B
Sikorsky Aircraft Corporation336411 Aircraft Manufacturing$3.0B$21.5B
Hamilton Sundstrand Corporation336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing$190.5M$1.0B
Gartner, Inc.541519 Other Computer Related Services$42.3M$626.7M
Regan Technologies Corp541519 Other Computer Related Services$100.5M$530.6M
Rite-Solutions, Inc.541330 Engineering Services$84.4M$370.9M
Sonalysts Inc541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)$63.4M$318.7M
Mclaughlin Research Corporation541330 Engineering Services$55.9M$286.9M
CW Resources, Inc.561720 Janitorial Services$63.0M$284.7M
Applied Physical Sciences Corp541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)$32.1M$280.9M
Celeen LLC541990 All Other Professional, Scientific, and Technical Services$42.1M$267.2M
Plowshare Group, Inc541810 Advertising Agencies$0$241.6M
Emprise Corporation541330 Engineering Services$46.0M$208.8M
Danbury Mission Technologies, LLC334419 Other Electronic Component Manufacturing$58.2M$191.9M
Pitney Bowes Inc.561499 All Other Business Support Services$34.0M$183.9M
Triumph Engine Control Systems LLC336412 Aircraft Engine and Engine Parts Manufacturing$50.2M$177.1M
Ameritech Contracting LLC236220 Commercial and Institutional Building Construction$61.9M$174.4M
Ethan Allen Retail, Inc.337122 Nonupholstered Wood Household Furniture Manufacturing$14.1M$164.8M
Ipsos Public Affairs, LLC541611 Administrative Management and General Management Consulting Services$46.2M$137.3M
Colt's Manufacturing Company, LLC332994 Small Arms, Ordnance, and Ordnance Accessories Manufacturing$20.1M$130.4M
Ensign-Bickford Aerospace & Defense Company325920 Explosives Manufacturing$3.4M$129.6M
The Nutmeg Companies, Inc.236220 Commercial and Institutional Building Construction$16.0M$115.2M
Moran Towing Corporation488330 Navigational Services to Shipping$17.7M$107.8M
Lifecare, Inc624190 Other Individual and Family Services$23.5M$101.4M
Treadwell Corporation (Delaware)332919 Other Metal Valve and Pipe Fitting Manufacturing$15.0M$93.4M
Yale New Haven Health Services Corporation541690 Other Scientific and Technical Consulting Services$15.8M$89.4M
ERI Services, Inc.541330 Engineering Services$253K$81.8M
The Hartford Provision Company311999 All Other Miscellaneous Food Manufacturing$11.0M$74.9M
Murray Benjamin Electric Company LLC335929 Other Communication and Energy Wire Manufacturing$12.7M$70.9M
Acmt, Inc.336412 Aircraft Engine and Engine Parts Manufacturing$14.3M$52.8M
PCX Aerostructures, LLC336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing$17.6M$51.3M
Merlin Petroleum Co Inc324110 Petroleum Refineries$5.6M$50.6M
United Rentals, Inc.332510 Hardware Manufacturing$578K$47.8M
Connecticut Container Corp.322211 Corrugated and Solid Fiber Box Manufacturing$6.6M$47.1M
Linde Inc.325120 Industrial Gas Manufacturing$5.6M$44.0M
Yale Univ611310 Colleges, Universities, and Professional Schools$11.0M$43.6M
Rotair Aerospace Corp336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing$11.8M$42.7M
General Dynamics Information Technology, Inc.624230 Emergency and Other Relief Services$0$41.2M
Morganti Group, Inc. the236220 Commercial and Institutional Building Construction$900$40.9M
Cabrera Services Inc562910 Remediation Services$0$39.6M
Liquidpiston, Inc541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)$0$38.8M
Mohawk Northeast Inc237990 Other Heavy and Civil Engineering Construction$24.5M$36.5M
Coastline Consulting & Development, LLC237990 Other Heavy and Civil Engineering Construction$28K$33.7M
Detect Inc541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)$0$33.6M
Apiject Systems America, Inc.339999 All Other Miscellaneous Manufacturing$0$33.5M
L.c.doane Company,the335132 Commercial, Industrial, and Institutional Electric Lighting Fixture Manufacturing$5.5M$31.7M
Ocean Surveys, Inc.541370 Surveying and Mapping (except Geophysical) Services$6.8M$31.4M
Numet Acquisition Numet, Inc.336412 Aircraft Engine and Engine Parts Manufacturing$7.9M$30.3M
Jackson Ryan Construction Services, Inc.236220 Commercial and Institutional Building Construction$1.5M$30.0M
Advance Development & Manufacturing Corporation488190 Other Support Activities for Air Transportation−$1K$29.8M
Precision Combustion, Inc.541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)$3.5M$29.4M
Community Solutions, Inc.623990 Other Residential Care Facilities$6.7M$29.0M
Overhaul Support Services, LLC336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing$4.2M$26.8M
RTX Corporation541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)$2.5M$26.7M
Kelly Construction Services Inc.236220 Commercial and Institutional Building Construction$2.2M$25.7M
University of Connecticut541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)$6.0M$25.5M
Survival Systems USA Inc333310 Commercial and Service Industry Machinery Manufacturing$9.3M$25.1M
Eversource Energy Service Company221122 Electric Power Distribution$5.5M$24.7M
CVS Healthspire Payor & Life Sciences LLC518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services$5.9M$23.9M
Quadient, Inc.561499 All Other Business Support Services$4.5M$23.1M
Continuum of Care Inc623220 Residential Mental Health and Substance Abuse Facilities$3.7M$22.3M
B S T Systems, Inc.335910 Battery Manufacturing$2.5M$21.6M
Beacon Industries, Inc.336412 Aircraft Engine and Engine Parts Manufacturing$1.1M$20.6M
Simtech, Inc336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing$5.8M$20.3M
Department of Public Health Connecticut541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)$3.8M$20.2M
New England Specialty Components, LLC332911 Industrial Valve Manufacturing$3.0M$20.1M
Quattro Consulting LLC611699 All Other Miscellaneous Schools and Instruction$4.2M$19.9M
Gilman Corporation the325991$6.1M$19.3M
Bagela USA, LLC333120 Construction Machinery Manufacturing$1.2M$18.3M
Mednick Associates, LLC541611 Administrative Management and General Management Consulting Services$2.3M$18.2M
Mirion Technologies (Canberra), Inc.811219 Other Electronic and Precision Equipment Repair and Maintenance$2.1M$17.9M
Municipal Emergency Services, Inc.315999 Other Apparel Accessories and Other Apparel Manufacturing$1.0M$17.5M
Qualtech Systems, Inc.541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)$1.5M$17.4M
Schaeffler Aerospace USA Corp332991 Ball and Roller Bearing Manufacturing$2.3M$17.1M
TLD America Corporation333924 Industrial Truck, Tractor, Trailer, and Stacker Machinery Manufacturing$6.0M$17.1M
Otis Elevator Company238290 Other Building Equipment Contractors$1.6M$16.6M
LAZ Parking Ltd, LLC812930 Parking Lots and Garages$3.5M$16.3M
United Rentals (North America), Inc.532490 Other Commercial and Industrial Machinery and Equipment Rental and Leasing$6.1M$16.3M
Thames Towboat Co Inc488330 Navigational Services to Shipping$1.1M$15.8M
DMT Solutions Global Corporation561499 All Other Business Support Services$6.7M$15.7M
TRC Environmental Corporation541620 Environmental Consulting Services$5.1M$15.1M
Prime Technology LLC335931 Current-carrying Wiring Device Manufacturing$2.5M$14.9M
Milliman, Inc.541611 Administrative Management and General Management Consulting Services$2.7M$14.7M
Capewell Aerial Systems LLC332439 Other Metal Container Manufacturing$3.0M$14.3M
Spectrum Associates, Inc.334513 Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables$1.9M$14.2M
Xerox Corporation334118 Computer Terminal and Other Computer Peripheral Equipment Manufacturing$814$13.9M
Thayermahan, Inc541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)$400K$13.8M
Edro Corporation, the333310 Commercial and Service Industry Machinery Manufacturing$1.9M$13.7M
Pitney Bowes Global Financial Services LLC532420 Office Machinery and Equipment Rental and Leasing$4.1M$13.6M
Arhab LLC333912 Air and Gas Compressor Manufacturing$5.2M$13.5M
Coronet Machinery Corp.332710 Machine Shops$4.0M$13.3M
Linde GAS & Equipment Inc.325120 Industrial Gas Manufacturing$2.4M$13.1M
Ethosenergy Accessories and Components, LLC332911 Industrial Valve Manufacturing$1.8M$12.5M
Bauer, Inc.335314 Relay and Industrial Control Manufacturing$3.2M$12.5M
O F Mossberg & Sons Inc332994 Small Arms, Ordnance, and Ordnance Accessories Manufacturing$48K$12.4M
Eaton Aerospace LLC334519 Other Measuring and Controlling Device Manufacturing$526K$12.2M
Flight Support, Inc.336412 Aircraft Engine and Engine Parts Manufacturing$1.6M$12.1M
Ward Leonard CT LLC335312 Motor and Generator Manufacturing$4.4M$12.1M
The Curtis Home623110 Nursing Care Facilities (Skilled Nursing Facilities)$0$11.9M
B N L Industries Inc332911 Industrial Valve Manufacturing$2.0M$11.8M
Faxon Engineering Co Inc332999 All Other Miscellaneous Fabricated Metal Product Manufacturing$2.9M$11.7M
PNT Data Corp518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services$2.7M$11.6M
City of Groton Department of Utilities238220 Plumbing, Heating, and Air-conditioning Contractors$2.0M$11.5M
Loos & Co Inc332618 Other Fabricated Wire Product Manufacturing$496K$11.3M
Amerifield LLC236220 Commercial and Institutional Building Construction$11.3M$11.3M
Flexrn Inc561320 Temporary Help Services$377K$11.1M
Central Inc.425120 Wholesale Trade Agents and Brokers−$869K$10.8M
RBC Aircraft Products, Inc.332991 Ball and Roller Bearing Manufacturing$2.0M$10.7M
Microsemi Corp. - RF Signal Processing334419 Other Electronic Component Manufacturing$1.1M$10.5M
Habco Industries LLC334519 Other Measuring and Controlling Device Manufacturing$2.4M$10.2M
Perkinelmer U.S. LLC811210 Electronic and Precision Equipment Repair and Maintenance$3.5M$10.2M

Prime contract obligations from USAspending.gov through Oct 5, 2026. Headquarters state comes from each contractor's most recent contract action. To search by name, UEI, or CAGE code, use the contractor directory.

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