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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 541690 (Other Scientific and Technical 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. Dirac Solutions, Inc.Pleasanton, CA · $24 million
  2. Tierra Data IncEscondido, CA · $9.4 millionWOSB
  3. Geooptics, Inc.Pasadena, CA · $6.5 million
  4. Advanced LAN Techs IncIrvine, CA · $5 million
  5. BW Research Partnership IncCarlsbad, CA · $4.1 million
  6. FishbioOakdale, CA · $3.5 million
  7. Mathematical Analysis Research CorpClaremont, CA · $3.4 millionWOSB
  8. Asca, IncRedondo Beach, CA · $2.4 million
  9. Certasim, LLCCastro Valley, CA · $2.1 million
  10. Openscapes LLCEast Palo Alto, CA · $1.1 millionWOSB
  11. EP Analytics, Inc..San Diego, CA · $1.1 millionWOSB
  12. Occupational Services, Inc.San Diego, CA · $1.1 million
  13. Lettis Consultants International IncConcord, CA · $981,347
  14. MSB AssociatesBelmont, CA · $895,822
  15. Arbor Environmental LLCPalos Verdes Peninsula, CA · $530,833WOSB
  16. Quandary Peak Research, Inc.Los Angeles, CA · $492,414
  17. Gnarus Advisors LLCLos Angeles, CA · $469,239WOSB
  18. Allan H.Solomon, PH.D., Inc., a Psychology CorporationWalnut Creek, CA · $466,804
  19. Onpoint Analytics, Inc.Emeryville, CA · $345,530
  20. Materials Design, Inc.San Diego, CA · $281,150
  21. Quality Assurance Services, Inc.Chula Vista, CA · $274,549
  22. Allie Bridge Energy SolutionsParamount, CA · $260,8548(a)WOSB
  23. Therapy Physics IncSignal Hill, CA · $258,500
  24. Active Health Science LLCCarmel, CA · $187,200SDVOSB
  25. Daniel CampbellSan Rafael, CA · $184,784
  26. Araldi Gian LucaSan Marcos, CA · $171,134
  27. Joshua E AsarianEureka, CA · $166,400
  28. LCG ConsultingLos Altos, CA · $162,000
  29. Jessica OswaldOceanside, CA · $150,000WOSB
  30. Postured LLCEl Cajon, CA · $140,250
  31. Rochester Scientific LLCEl Cerrito, CA · $139,902
  32. J.B. Lovelace & AssociatesCovelo, CA · $136,885
  33. Seqgen, Inc.Torrance, CA · $101,941
  34. Harmonized Health Analytics LLCLomita, CA · $99,892WOSB
  35. Eilar Associates, IncEscondido, CA · $87,000WOSB
  36. Peerson Janet MarieDavis, CA · $84,450
  37. Danielle SirivatSan Diego, CA · $75,016
  38. Southall Environmental Associates IncAptos, CA · $66,832
  39. James Carroll & Associates - Forensic Consultants LLCArcadia, CA · $47,250
  40. Abigail KellerSouth San Francisco, CA · $34,668
  41. Peter L. Scully SrCampo, CA · $30,536
  42. Water One Industries, Inc.Benicia, CA · $29,957
  43. Pro Safety & Rescue, IncBakersfield, CA · $29,094
  44. J Hollywood LLCValencia, CA · $24,572
  45. Jennifer SoperWalnut Creek, CA · $20,533
  46. Forensisgroup, Inc.Pasadena, CA · $19,186
  47. Lee & Associates Rescue Equipment, Inc.Boulder Creek, CA · $9,437
  48. Berkeley Analytics, Inc.Oakland, CA · $9,198
  49. Sarah PearsonFair Oaks, CA · $8,100
  50. Cereus Environmental, LLCChino, CA · $6,500
Top firms by certification in California, with primary NAICS code 541690 (Other Scientific and Technical Consulting Services) (8(a), WOSB and SDVOSB)

Top 8(a) firms in California, with primary NAICS code 541690 (Other Scientific and Technical Consulting Services)

  1. Allie Bridge Energy SolutionsParamount, CA · $260,854

Top Women-owned small businesses in California, with primary NAICS code 541690 (Other Scientific and Technical Consulting Services)

  1. Tierra Data IncEscondido, CA · $9.4 million
  2. Mathematical Analysis Research CorpClaremont, CA · $3.4 million
  3. Openscapes LLCEast Palo Alto, CA · $1.1 million
  4. EP Analytics, Inc..San Diego, CA · $1.1 million
  5. Arbor Environmental LLCPalos Verdes Peninsula, CA · $530,833
  6. Gnarus Advisors LLCLos Angeles, CA · $469,239
  7. Allie Bridge Energy SolutionsParamount, CA · $260,854
  8. Jessica OswaldOceanside, CA · $150,000
  9. Harmonized Health Analytics LLCLomita, CA · $99,892
  10. Eilar Associates, IncEscondido, CA · $87,000

See more Women-owned small businesses in California, with primary NAICS code 541690 (Other Scientific and Technical Consulting Services)

Top Service-disabled veteran-owned in California, with primary NAICS code 541690 (Other Scientific and Technical Consulting Services)

  1. Active Health Science LLCCarmel, CA · $187,200

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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