Subcontracting opportunities: NAICS 237990, Other Heavy and Civil Engineering Construction

139 prime contractors held small business subcontracting plans on 576 federal other heavy and civil engineering construction contracts (NAICS 237990) in FY2022–FY2024, worth $12.8B including options. Only primes that aren't small businesses need these plans, and each one sets goals for work the prime gives to small businesses, so these are the companies looking for small subcontractors in this industry.

Primes with plans
139
Plan contracts
576
Agencies
10
Total value
$12.8B

A free account shows the primes that subcontract 237990 work in your state and the small businesses they hire.

Primes with subcontracting plans in 237990

Most plan contracts first. “Recent subcontracts” counts the subcontracts each prime reported among the 254 most recent reports in this code.

Prime contractorPlan contractsValueMain agenciesRecent subcontracts
Great Lakes Dredge & Dock Company, LLCOakbrook Terrace, TX57$1.1BDepartment of the Army—
Manson Construction Co.Seattle, WA · part of Manson Construction Holding Company55$774MDepartment of the Army, Department of the Navy+3 more8$3.3M
Inland Dredging Company, L.L.C.Dyersburg, TN34$206MDepartment of the Army—
Weeks Marine, Inc.Covington, LA28$540MDepartment of the Army, National Oceanic and Atmospheric Administration7$2M
Mike Hooks, LLCWestlake, LA19$105MDepartment of the Army—
Norfolk Dredging CompanyChesapeake, VA18$189MDepartment of the Army—
Pine Bluff Sand and Gravel CompanyWhite Hall, AR17$151MDepartment of the Army—
The Dutra GroupSan Rafael, CA16$331MDepartment of the Army29$6.4M
Luhr Crosby, LLCColumbia, IL13$156MDepartment of the Army—
Reyes Construction, Inc.Pomona, CA13$155MDepartment of the Navy—
Cashman Dredging and Marine Contracting, Co., LLCQuincy, MA13$129MDepartment of the Army, Department of the Navy—
Amherst Madison, IncCharleston, WV · part of Port Amherst LTD.11$27.6MDepartment of the Army—
Luhr Bros., Inc.Columbia, IL10$62.1MDepartment of the Army—
Triton Marine Construction Corp.Bremerton, WA10$35.9MDepartment of the Navy—
Mcmillen, LLCBoise, ID9$74.4MDepartment of the Army, Bureau of Indian Affairs—
Orion Marine Construction, Inc.Tampa, FL9$53.4MDepartment of the Army—
Nova Group, Inc.Napa, CA · part of Quanta Services Inc.9$52.7MDepartment of the Navy10$17M
J. F. Brennan Company, Inc.La Crosse, WI7$102MDepartment of the Army—
CJ Mahan Construction Co LLCUrbancrest, OH · part of C.J. Mahan Construction Company LLC7$32.5MDepartment of the Army—
Marinex Construction, Inc.Charleston SC, SC7$30MDepartment of the Army—
Callan Marine LTDGalveston, TX6$316MDepartment of the Army—
Donjon Marine Co., Inc.Hillside, NJ6$85.2MDepartment of the Army—
Massman Construction Co.Overland Park, KS6$46.9MDepartment of the Army—
Andritz Hydro Corp.Charlotte, NC · part of Andritz Ag5$132MDepartment of the Army, Bureau of Reclamation—
Michels Construction, Inc.Brownsville, WI5$58.9MDepartment of the Army—
Crosby Dredging, LLCGalliano, LA5$36.5MDepartment of the Army—
H & L Contracting, LLCBay Shore, NY5$15.4MDepartment of the Army—
Ames Construction, Inc.Burnsville, MN5$9.9MDepartment of the Army, Bureau of Reclamation—
Voith Hydro, Inc.York, PA4$243MDepartment of the Army—
Cianbro CorporationPittsfield, ME · part of The Cianbro Companies4$227MDepartment of the Navy, National Park Service+1 more—
Ge Renewables US LLCGreenwood Village, CO4$192MDepartment of the Army, Bureau of Reclamation122$20M
Granite Construction CompanyWatsonville, CA4$142MDepartment of the Army13$9.8M
Kiewit Infrastructure South Co.Omaha, TX · part of Peter Kiewit Sons' Inc.4$6.1MDepartment of the Army, National Park Service—
Railroad Construction Company, Inc.Paterson, NJ4$5.6MDepartment of the Navy—
Knight Const. & Supply, Inc.Deer Park, WA3$175MDepartment of the Army—
Odin Environmental Solutions, LLCRoseville, CA3$101MDepartment of the Army, International Boundary and Water Commission: U.S.-Mexico+1 more—
Black Construction CorporationHarmon, GU · part of Tutor Perini Corporation3$98.3MDepartment of the Navy—
Port of PortlandPortland, OR3$85.6MDepartment of the Army—
Contrack Watts, Inc.McLean, VA · part of Oci Overseas Holding Limited3$59.6MDepartment of the Navy—
Shimmick Construction Company, Inc.Oakland, CA3$40.8MDepartment of the Army—
Nan, Inc.Honolulu, HI3$37.9MDepartment of the Navy—
Great Lakes Environmental & Infrastructure, LLCRocklin, CA · part of Great Lakes Dredge & Dock Corporation3$35.8MDepartment of the Army—
Bauer Foundation Corp.Odessa, FL · part of Bauer Ag3$10.6MDepartment of the Army—
Treviicos South, Inc.Charlestown, MA · part of Trevi Finanziaria Industriale Spa3$4.4MDepartment of the Army—
Orion Construction CorporationVista, CA3$3.1MDepartment of the Navy—
Thalle Construction Co Inc.Hillsborough, NC2$2.9BDepartment of the Army—
Trumbull Corporation and Brayman Construction Corporation, a Joint VenturePittsburgh, PA2$977MDepartment of the Army—
Dragados/Hawaiian Dredging/Orion JVHonolulu, HI2$443MDepartment of the Navy—
Sauer IncorporatedJacksonville, FL · part of Sauer Construction LLC2$71.1MDepartment of the Navy—
Je Mcamis IncChico, CA2$67.2MDepartment of the Army—

Showing the first 50 of 139 primes.

Recent subcontracts to small businesses

Of the 254 most recent subcontracts primes reported under NAICS 237990 since Sep 24, 2025, 49 went to small businesses, worth $24M.

DateSmall businessPrimeAmount
Sep 10, 2026Montezuma Wetlands LLCCAThe Dutra GroupDepartment of the Army$745K
Aug 28, 2026Brusco Tug & Barge, Inc.WAThe Dutra GroupDepartment of the Army$644K
Aug 19, 2026Rasmussen Marine, LLCWAThe Dutra GroupDepartment of the Army$245K
Aug 14, 2026Rasmussen Marine, LLCWAThe Dutra GroupDepartment of the Army$490K
Aug 14, 2026Living Nature Coast, LLCFLWeeks Marine, Inc.Department of the Army$221K
Jul 8, 2026Ordnance Holdings, IncFLManson Construction CoDepartment of the Army$169K
Jul 2, 2026Kokes Construction LLCNEFirelake Construction IncBureau of Reclamation$42.2K
Jun 30, 2026Ryzhka International LLCFLThe Dutra GroupDepartment of the Army$92.6K
Jun 10, 2026Rasmussen Marine, LLCWAThe Dutra GroupDepartment of the Army$97.3K
Jun 8, 2026Cross Link, Inc.CAThe Dutra GroupDepartment of the Army$326K
Jun 1, 2026Brusco Tug & Barge, Inc.WAThe Dutra GroupDepartment of the Army$345K
May 18, 2026Atlas Group LLCAKKiewit Infrastructure West Co.Department of the Army$1.6M
May 11, 2026Matos Builders LLCMDGe Renewables US LLCDepartment of the Army$66.6K
Apr 27, 2026US Eco Products CorpMAMohawk Northeast IncDepartment of the Army$2.3K
Apr 9, 2026Oatridge Security Group, Inc.WANova Group, Inc.Department of the Navy$72K
Apr 2, 2026Asrc Prime Constructors, LLCAKAsrc Builders, LLCDepartment of the Army$30K
Mar 31, 2026Thompson Metal Fab, Inc.WAAmes Federal Contracting Group LLCBureau of Reclamation$112K
Mar 10, 2026Site Response Inc.WAGe Renewables US LLCDepartment of the Army$10K
Feb 17, 2026New Form Building Systems IncMEMohawk Northeast IncDepartment of the Army$453K
Feb 10, 2026Shilling Construction Co IncKSDawson Federal, Inc.Department of the Army$356K
Feb 2, 2026North East Materials Group LLCVTMohawk Northeast IncDepartment of the Army$2.9M
Jan 26, 2026Marine Surveys & Assessments CooperativeWANova Group, Inc.Department of the Navy$318K
Jan 16, 2026Laguna Gold Mortgage, Inc.CAKiewit Infrastructure West Co.National Park Service$724K
Dec 17, 2025DMS Drywall & Interior Systems, IncCAKiewit Infrastructure West Co.National Park Service$474K
Dec 16, 2025Living Nature Coast, LLCFLWeeks Marine, Inc.Department of the Army$115K

Small businesses winning these subcontracts

Which agencies

AgencyPlan contractsValue
Department of the Army463$10.7B
Department of the Navy85$1.7B
Bureau of Reclamation12$85.6M
National Park Service8$157M
International Boundary and Water Commission: U.S.-Mexico2$96.9M
National Oceanic and Atmospheric Administration2$2.6M
Farm Production and Conservation Business Center1$42.3M
Great Lakes ST. Lawrence Seaway Development Corporation1$7.5M
Public Buildings Service1$4.6M
Bureau of Indian Affairs1$1.8M

Where the work is

Louisiana (66), Florida (47), California (46), Texas (44), Washington (36), Alabama (32), Mississippi (30), New Jersey (25), New York (24), Virginia (18), and 39 more.

How to win subcontracts with these primes

  1. Register in the prime's supplier portal. Most large primes have one, usually under “supplier diversity” or “small business programs” on their website. Buyers search it when they need a subcontractor, so list your NAICS codes, certifications and past work.
  2. Contact the small business liaison officer. Every prime with a plan names someone to run it. Find them through the supplier portal, or for defense primes in DoD's prime contractor directory. Send a one-page capability statement that names the contracts and agencies you can support.
  3. Watch SBA's SubNet. Primes post subcontracting solicitations and sources sought notices on SubNet.
  4. Be easy to vet. Keep your SAM.gov registration active and check that you count as small under 237990's size standard. Certifications such as 8(a), HUBZone, WOSB and SDVOSB count toward the prime's goals, which makes you more valuable to them.
  5. Get free help. APEX Accelerators introduce small businesses to primes and run matchmaking events. Our guide to becoming a government subcontractor covers the rest.

More on 237990: open contracts and top small-business winners and contracts ending in the next 12 months. Primes also post subcontracting opportunities on SBA's SubNet.

Frequently asked questions

What is a small business subcontracting plan?

Under FAR 19.702, a large business that wins a federal contract over $900,000 ($2 million for construction) with subcontracting possibilities must agree to a plan with goals for subcontracting to small businesses, including small disadvantaged, women-owned, HUBZone and service-disabled veteran-owned firms. The prime reports its progress twice a year in eSRS. Contracts awarded before October 2025 used the older $750,000 and $1.5 million thresholds.

How do I become a subcontractor to these 237990 primes?

Register in the prime's supplier portal (most large primes have one, often called supplier diversity or small business programs), keep your SAM.gov registration active, and send the prime's small business liaison officer a capability statement that names the contracts and agencies you can support. Primes need small subcontractors to meet their plan goals, so being easy to find and easy to vet matters.

Where does this data come from?

Primes and their plan contracts come from SBA's Directory of Federal Government Prime Contractors with Subcontracting Plans for FY2022–FY2024, which is drawn from FPDS. Recent subcontracts come from the subaward reports primes file on USAspending.gov (most subcontracts over $30,000 on prime contracts over $750,000 must be reported). A subcontractor is shown as a small business when it has an active SAM.gov registration as small under at least one NAICS code, or an SBA certification.

Source: SBA's directory of prime contractors with subcontracting plans (FY2022–FY2024, from FPDS) and USAspending.gov subaward reports. Contact names are never shown. Values are base plus all options, not what has been paid.