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Small business government contractors

Profiles of small businesses registered on SAM.gov to win federal contracts: CAGE code, UEI, registration status, SBA certifications and federal contract history. 34,768 of them have won federal contracts or SBIR/STTR awards in the last few years.

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Small businesses in Washington, with primary NAICS code 237990 (Other Heavy and Civil Engineering Construction), by federal contract dollars

Ranked by federal prime contract dollars as a small business since FY2024 (USAspending.gov, as of Nov 5, 2026).

How these are ranked

Prime contract dollars since fiscal year 2024 on contracts where USAspending.gov counts the firm as a small business. “Small” is set per NAICS code: these firms are registered small under their primary code (or SBA-certified). Firms that hold small business subcontracting plans, which only businesses that aren't small file, or have $1 billion or more in these contracts are left out. A profile's yearly totals count all of its prime contracts, so they can be higher.

  1. Port Madison Construction CorporationPoulsbo, WA · $89.3 million8(a)HUBZone
  2. Sealaska Constructors LLCSeattle, WA · $73.1 million
  3. Northbank Civil and Marine, LLCVancouver, WA · $67.1 million
  4. Port Madison Enterprises Construction CorporationPoulsbo, WA · $17.8 million
  5. S.E.A. Construction LLCRaymond, WA · $17.1 million8(a)HUBZoneWOSBSDVOSB
  6. Apogee Group, LLCRichland, WA · $11.6 millionWOSB
  7. Wemco-Garco MP JV1Spokane, WA · $9.4 millionWOSB
  8. N.W. Construction General Contracting, Inc.Battle Ground, WA · $3.6 million
  9. Civil Built LLCWalla Walla, WA · $3.6 million
  10. Delange Enterprises, IncWinthrop, WA · $3.5 millionHUBZone
  11. Gibson & Son Road Building, IncEllensburg, WA · $3.5 million
  12. Duwamish Services LLCSeattle, WA · $3 millionHUBZone
  13. Tompco, Inc.Seabeck, WA · $1.9 millionSDVOSB
  14. Doyon Contracting Services, LLCFederal Way, WA · $1.6 million8(a)
  15. Wakefield Excavation LLCEllensburg, WA · $1 millionHUBZone
  16. Halme Construction, Inc.Spokane, WA · $160,116
  17. Ahtna Global LLCRenton, WA · $148,3288(a)
  18. Nordholm Companies IncEverett, WA · $110,859
  19. Triple River Construction LLCRichland, WA · $20,000
Top firms by certification in Washington, with primary NAICS code 237990 (Other Heavy and Civil Engineering Construction) (8(a), HUBZone, WOSB and SDVOSB)

Top 8(a) firms in Washington, with primary NAICS code 237990 (Other Heavy and Civil Engineering Construction)

  1. Port Madison Construction CorporationPoulsbo, WA · $89.3 million
  2. S.E.A. Construction LLCRaymond, WA · $17.1 million
  3. Doyon Contracting Services, LLCFederal Way, WA · $1.6 million
  4. Ahtna Global LLCRenton, WA · $148,328

Top HUBZone firms in Washington, with primary NAICS code 237990 (Other Heavy and Civil Engineering Construction)

  1. Port Madison Construction CorporationPoulsbo, WA · $89.3 million
  2. S.E.A. Construction LLCRaymond, WA · $17.1 million
  3. Delange Enterprises, IncWinthrop, WA · $3.5 million
  4. Duwamish Services LLCSeattle, WA · $3 million
  5. Wakefield Excavation LLCEllensburg, WA · $1 million

Top Women-owned small businesses in Washington, with primary NAICS code 237990 (Other Heavy and Civil Engineering Construction)

  1. S.E.A. Construction LLCRaymond, WA · $17.1 million
  2. Apogee Group, LLCRichland, WA · $11.6 million
  3. Wemco-Garco MP JV1Spokane, WA · $9.4 million

Top Service-disabled veteran-owned in Washington, with primary NAICS code 237990 (Other Heavy and Civil Engineering Construction)

  1. S.E.A. Construction LLCRaymond, WA · $17.1 million
  2. Tompco, Inc.Seabeck, WA · $1.9 million

Hiring small subcontractors?

If you're a prime looking for small businesses to team with, use the filters above to list small firms by state, NAICS code and certification, then open a profile for its SAM.gov registration, the codes it is small under and its contract history. Check any firm by name, UEI or CAGE code with the CAGE code and UEI lookup.

About these profiles

Every business registered on SAM.gov as small under at least one NAICS code, and every SBA-certified firm, has a profile; each profile says which codes it is small under. Registration details come from SAM.gov's public entity extract and contract figures from USAspending.gov. Contact names and street addresses are left out. Looking for partners to team with? See how to become a government subcontractor.

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