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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 562111 (Solid Waste Collection), 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. Zero Waste Solutions, IncConcord, CA · $26.1 millionWOSB
  2. Apex Waste Systems, Inc.Perris, CA · $2.9 million
  3. San Miguel Garbage Company, Inc., a California CorporationPaso Robles, CA · $1.2 million
  4. Baygreen, Inc.Albany, CA · $522,295WOSB
  5. Humboldt Sanitation Co.McKinleyville, CA · $431,725WOSB
  6. Scott Valley Disposal, Inc.Fort Jones, CA · $377,231
  7. Thomas Refuse Service IncLake Isabella, CA · $307,701
  8. Kenneth M CookWillows, CA · $303,739
  9. Orchard Operations IncBeverly Hills, CA · $221,077WOSB
  10. Berryessa Garbage Service, IncNapa, CA · $166,068
  11. Tracy Delta Solid Waste Management IncorporatedTracy, CA · $155,367
  12. GKR LLCAlpine, CA · $101,359
  13. Haz Mat Trans, Inc.San Bernardino, CA · $63,164WOSB
  14. Pena's Disposal, Inc.Cutler, CA · $43,142
  15. Waste Resource Recovery, Inc.Hollister, CA · $19,235
  16. Monterey City Disposal Service IncMonterey, CA · $17,965
Top firms by certification in California, with primary NAICS code 562111 (Solid Waste Collection) (WOSB)

Top Women-owned small businesses in California, with primary NAICS code 562111 (Solid Waste Collection)

  1. Zero Waste Solutions, IncConcord, CA · $26.1 million
  2. Baygreen, Inc.Albany, CA · $522,295
  3. Humboldt Sanitation Co.McKinleyville, CA · $431,725
  4. Orchard Operations IncBeverly Hills, CA · $221,077
  5. Haz Mat Trans, Inc.San Bernardino, CA · $63,164

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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