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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 California, with primary NAICS code 541620 (Environmental Consulting Services), by federal contract dollars

Ranked by federal prime contract dollars as a small business since FY2024 (USAspending.gov, as of Nov 5, 2026). The 50 with the most dollars are shown; add a filter to narrow the list.

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. Eco & Associates, Inc.Santa Ana, CA · $30.9 millionWOSB
  2. Tellus Civic Science CorporationSan Diego, CA · $13.8 millionWOSB
  3. Real Model Solutions, Inc.Ventura, CA · $12.8 million8(a)
  4. Windborne Systems IncRedwood City, CA · $10.7 million
  5. CTI Environmental IncLong Beach, CA · $10.5 millionWOSB
  6. Terra Solutions & Services IncHerlong, CA · $9.9 million8(a)
  7. Environmental Synectics, IncSacramento, CA · $6.9 million
  8. Del Mar-Trevet-JV LLCChula Vista, CA · $6.3 million
  9. Apex Contracting & Consulting IncFallbrook, CA · $5.7 million
  10. Scout Environmental, Inc.Encinitas, CA · $5.5 millionSDVOSB
  11. Western PropertiesRancho Cordova, CA · $5.5 millionWOSB
  12. Meca Consulting IncPleasanton, CA · $5.2 million
  13. Environmental Cost Management, Inc.Costa Mesa, CA · $5.1 million
  14. Boudreau Associates LLCSan Francisco, CA · $4 million8(a)WOSB
  15. Inya, Inc.Diamond Bar, CA · $3.6 millionWOSB
  16. Asm Affiliates IncCarlsbad, CA · $3.6 million
  17. ACS Habitat Management, Inc.Oceanside, CA · $3.3 million
  18. Recon Environmental, Inc.San Diego, CA · $3.1 million
  19. Adanta, Inc.Napa, CA · $3 million
  20. CE2 Corporation, Inc.Pleasanton, CA · $2.8 million
  21. RMS Nicklaus JV, LLCVentura, CA · $2.7 million
  22. Merkel & Associates, Inc.San Diego, CA · $2.6 millionWOSB
  23. Ironwood Consulting Inc.Redlands, CA · $2.3 millionWOSB
  24. Catalyst Environmental Solutions CorporationVan Nuys, CA · $2.2 million
  25. Wildscape Restoration, IncVentura, CA · $2.1 million8(a)WOSB
  26. Ahtna Government Services CorpRancho Cordova, CA · $1.9 million
  27. G2RJ IncorporatedSan Diego, CA · $1.3 million
  28. Hana Resources, Inc.Lake Forest, CA · $1.1 million
  29. RMS Nicklaus JV II LLCVentura, CA · $1.1 million
  30. FMF PandionSan Diego, CA · $906,1988(a)SDVOSB
  31. Wendy L. BoesNevada City, CA · $817,906WOSB
  32. Sierra West Consultants, IncFair Oaks, CA · $746,781
  33. The Urkov Group, LLCSacramento, CA · $677,417
  34. Bioresource Consultants, IncOjai, CA · $660,668
  35. Atlas Environmental Consulting, LLCVacaville, CA · $627,431
  36. Sequoia Ecological Consulting, Inc.Walnut Creek, CA · $609,588
  37. Spatial Informatics Group LLCPleasanton, CA · $599,101
  38. Paua Marine Research Group, LLCLong Beach, CA · $543,716
  39. Arndt Consulting ServicesLivermore, CA · $499,652SDVOSB
  40. B & B Nurseries, Inc.Riverside, CA · $465,000
  41. Pacific Engineering and Consulting, Inc.Fresno, CA · $452,838
  42. Design for Health Environmental Education Center, Pacific Rim Division, Inc.San Diego, CA · $412,030SDVOSB
  43. Alta Archaeological Consulting LLCSanta Rosa, CA · $320,173
  44. KR Environmental Services IncFountain Valley, CA · $319,200
  45. Bajada Ecology LLCRidgecrest, CA · $249,862
  46. Conservation Metrics, Inc.Santa Cruz, CA · $215,020
  47. Envirocheck, IncOrange, CA · $207,000
  48. Ecoscan Resource Data LLCWatsonville, CA · $178,282
  49. M.S. Hatch Consulting, LLCIrvine, CA · $178,129
  50. Terrainworks, Inc.Mount Shasta, CA · $153,260
Top firms by certification in California, with primary NAICS code 541620 (Environmental Consulting Services) (8(a), WOSB and SDVOSB)

Top 8(a) firms in California, with primary NAICS code 541620 (Environmental Consulting Services)

  1. Real Model Solutions, Inc.Ventura, CA · $12.8 million
  2. Terra Solutions & Services IncHerlong, CA · $9.9 million
  3. Boudreau Associates LLCSan Francisco, CA · $4 million
  4. Wildscape Restoration, IncVentura, CA · $2.1 million
  5. FMF PandionSan Diego, CA · $906,198
  6. Keish Environmental, PCSan Jose, CA · $43,295

Top Women-owned small businesses in California, with primary NAICS code 541620 (Environmental Consulting Services)

  1. Eco & Associates, Inc.Santa Ana, CA · $30.9 million
  2. Tellus Civic Science CorporationSan Diego, CA · $13.8 million
  3. CTI Environmental IncLong Beach, CA · $10.5 million
  4. Western PropertiesRancho Cordova, CA · $5.5 million
  5. Boudreau Associates LLCSan Francisco, CA · $4 million
  6. Inya, Inc.Diamond Bar, CA · $3.6 million
  7. Merkel & Associates, Inc.San Diego, CA · $2.6 million
  8. Ironwood Consulting Inc.Redlands, CA · $2.3 million
  9. Wildscape Restoration, IncVentura, CA · $2.1 million
  10. Wendy L. BoesNevada City, CA · $817,906

See more Women-owned small businesses in California, with primary NAICS code 541620 (Environmental Consulting Services)

Top Service-disabled veteran-owned in California, with primary NAICS code 541620 (Environmental Consulting Services)

  1. Scout Environmental, Inc.Encinitas, CA · $5.5 million
  2. FMF PandionSan Diego, CA · $906,198
  3. Arndt Consulting ServicesLivermore, CA · $499,652
  4. Design for Health Environmental Education Center, Pacific Rim Division, Inc.San Diego, CA · $412,030
  5. Blackhawk Environmental IncSan Diego, CA · $138,353
  6. FMF-Chloeta Joint Venture, LLCSan Diego, CA · $124,958

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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