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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 Texas, with primary NAICS code 541380 (Testing Laboratories and Services), 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. Chemtex Environmental Laboratory, Inc.Port Arthur, TX · $7.6 million
  2. A-Bear Consult LLCCrowley, TX · $5.1 millionSDVOSB
  3. Othram IncSpring, TX · $2.3 million
  4. Central Tox LLCRound Rock, TX · $2 millionSDVOSB
  5. Tri Airtesting IncAustin, TX · $1.3 million
  6. Friedman Research CorpAustin, TX · $900,338
  7. VPS Testing & Inspection, Inc.La Porte, TX · $850,000
  8. Aviation Laboratories, Inc.Houston, TX · $319,415
  9. A & B Environmental Services, IncHouston, TX · $309,452
  10. DHL Analytical, Inc.Round Rock, TX · $266,150
  11. Bio-Chem Lab IncWest, TX · $217,997
  12. Calibration Specialty, Inc.Irving, TX · $151,450WOSB
  13. M-Biolabs, IncSan Antonio, TX · $140,748
  14. Cerium Laboratories LLCAustin, TX · $102,737
  15. Molecular Research LPShallowater, TX · $43,290
  16. Biomass Solutions CorporationDallas, TX · $31,893
  17. Precision Fire Services LLCSherman, TX · $8,865SDVOSB
  18. Corespec Alliance, LLCHouston, TX · $6,953
  19. Lec Engineering IncEl Paso, TX · $6,500
Top firms by certification in Texas, with primary NAICS code 541380 (Testing Laboratories and Services) (WOSB and SDVOSB)

Top Women-owned small businesses in Texas, with primary NAICS code 541380 (Testing Laboratories and Services)

  1. Calibration Specialty, Inc.Irving, TX · $151,450

Top Service-disabled veteran-owned in Texas, with primary NAICS code 541380 (Testing Laboratories and Services)

  1. A-Bear Consult LLCCrowley, TX · $5.1 million
  2. Central Tox LLCRound Rock, TX · $2 million
  3. Precision Fire Services LLCSherman, TX · $8,865

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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