PSC codes › H999
PSC H999 — Other Quality Control, Testing and Inspection Services: Miscellaneous: federal contracts
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What PSC H999 covers
Description: Other Quality Control, Testing and Inspection Services: Miscellaneous
Official definition: GSA PSC Manual (PSC April 2025.xlsx), acquisition.gov/psc-manual. Category: Equipment Related Services › Quality Control.
Who is winning new PSC H999 work
Contractors ranked by obligations on awards that started FY2024–FY2027 to date.
| Contractor | Obligations | Awards |
|---|---|---|
| APPLIED RESEARCH ASSOCIATES, INC. | $23.8M | 1 |
| NAVCOR LOGISTICS LLC | $23.0M | 2 |
| KOREA HOUSING MANAGEMENT CO.,LTD | $6.6M | 52 |
| SIMPSON GUMPERTZ & HEGER INC. | $5.0M | 1 |
| NEXT GENERATION LOGISTICS, LLC | $4.7M | 2 |
| NICHOLSON CONSTRUCTION COMPANY | $3.8M | 1 |
| ACCURA ENGINEERING AND CONSULTING SERVICES, INC. | $3.6M | 11 |
| DATA QUALITY SCIENCE, LLC | $3.4M | 15 |
| PIPKIN INC. | $3.1M | 1 |
| AQUA SURVEY, INC. | $3.0M | 16 |
How competitive is PSC H999?
- 83.9% of obligations on these awards were competed.
- 24.6% of competed awards that report offers drew a single offer (n=297).
- 55.9% went to small businesses.
- The five largest contractors hold 52.5% across 268 contractors.
NAICS codes used on PSC H999 awards
| NAICS | Industry | Share |
|---|---|---|
| 541330 | Engineering Services | 23.1% |
| 488390 | Other Support Activities for Water Transportation | 19.4% |
| 541380 | Testing Laboratories and Services | 16.9% |
| 237120 | Oil and Gas Pipeline and Related Structures Construction | 6.1% |
| 541310 | Architectural Services | 4.2% |
| 532411 | Commercial Air, Rail, and Water Transportation Equipment Rental and Leasing | 3.9% |
| 541990 | All Other Professional, Scientific, and Technical Services | 3.4% |
| 237990 | Other Heavy and Civil Engineering Construction | 2.6% |
Related PSC codes
R499 Other Professional Services · R425 Engineering and Technical Services · Q301 Reference Laboratory Testing · J065 Maint/Repair/Rebuild of Equipment: Medical, Dental, and Veterinary Equipment and Supplies · J045 Maint/Repair/Rebuild of Equipment: Plumbing, Heating, and Waste Disposal Equipment · Z2JZ Repair or Alteration of Miscellaneous Buildings · F999 Other Environmental Services, Studies, and Analytical Support · Z2AA Repair or Alteration of Office Buildings
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