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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.

Or list small businesses by state, NAICS code or certification

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Small businesses in California, with primary NAICS code 333310 (Commercial and Service Industry Machinery Manufacturing), 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. Ife GroupEncinitas, CA · $23.6 million
  2. Katadyn Desalination, LLCPetaluma, CA · $2.9 million
  3. Sellers Optical, Inc.Costa Mesa, CA · $564,798
  4. EPD USA Inc.Banning, CA · $471,465
  5. Noritsu America CorporationBuena Park, CA · $309,084
  6. Specialised Imaging IncorporatedTemecula, CA · $285,122
  7. J. Harris Industrial Water Treatment, IncOxnard, CA · $229,826
  8. Western State Design, Inc.Hayward, CA · $221,015
  9. Starna Cells, Inc.Atascadero, CA · $137,420
  10. Wastech Controls & Engineering, LLCChatsworth, CA · $136,549
  11. Surface Preparation Solutions, LLCCerritos, CA · $129,542
  12. Varioscale, IncVista, CA · $122,100
  13. Katadyn North America Inc.Rocklin, CA · $112,774
  14. Discover Echo Inc.San Diego, CA · $73,505
  15. 259 Holdings LTD LLCCarlsbad, CA · $63,506WOSB
  16. Reynard CorporationSan Clemente, CA · $38,733
  17. ZBE, Inc.Carpinteria, CA · $37,301
  18. Seiwa Optical America IncSanta Clara, CA · $25,365
  19. Garner Products, Inc.Roseville, CA · $12,235
Top firms by certification in California, with primary NAICS code 333310 (Commercial and Service Industry Machinery Manufacturing) (WOSB)

Top Women-owned small businesses in California, with primary NAICS code 333310 (Commercial and Service Industry Machinery Manufacturing)

  1. 259 Holdings LTD LLCCarlsbad, CA · $63,506

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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