PSC codes › H399
PSC H399 — Inspection and Laboratory Services (except medical/dental): Miscellaneous: federal contracts
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What PSC H399 covers
Description: Inspection and Laboratory Services (except medical/dental): Miscellaneous
Includes: Commercial Testing and Laboratory Services
Excludes: Medical and Dental Laboratory Services
Official definition: GSA PSC Manual (PSC April 2025.xlsx), acquisition.gov/psc-manual. Category: Equipment Related Services › Quality Control.
Who is winning new PSC H399 work
Contractors ranked by obligations on awards that started FY2024–FY2027 to date.
| Contractor | Obligations | Awards |
|---|---|---|
| JLL-RER SOLUTIONS, LLC | $29.2M | 1 |
| COMPUTER EVIDENCE SPECIALISTS, LLC | $15.8M | 30 |
| K. PARKS CONSULTING, INC | $6.5M | 2 |
| AMENTUM TECHNOLOGY, INC. | $5.9M | 16 |
| PUBLIC HEALTH, CALIFORNIA DEPARTMENT OF | $5.2M | 2 |
| SZPM-ALPHA MPJV | $3.3M | 1 |
| BLUE CONSTRUCTION SERVICES LLC | $2.8M | 1 |
| MABBETT & ASSOCIATES, INC. | $2.5M | 16 |
| WASHINGTON STATE LIQUOR AND CANNABIS BOARD | $2.5M | 2 |
| TOBACCO CONTROL BOARD ARKANSAS | $2.4M | 3 |
How competitive is PSC H399?
- 79.8% of obligations on these awards were competed.
- 29.2% of competed awards that report offers drew a single offer (n=144).
- 44.3% went to small businesses.
- The five largest contractors hold 66.5% across 174 contractors.
NAICS codes used on PSC H399 awards
| NAICS | Industry | Share |
|---|---|---|
| 541350 | Building Inspection Services | 42.2% |
| 923120 | Administration of Public Health Programs | 17.8% |
| 561611 | Investigation and Personal Background Check Services | 14.2% |
| 541330 | Engineering Services | 8.2% |
| 541990 | All Other Professional, Scientific, and Technical Services | 7.8% |
| 541620 | Environmental Consulting Services | 3.7% |
| 541380 | Testing Laboratories and Services | 1.5% |
| 238990 | All Other Specialty Trade Contractors | 0.7% |
Related PSC codes
J059 Maint/Repair/Rebuild of Equipment: Electrical and Electronic Equipment Components · R499 Other Professional Services · Z2JZ Repair or Alteration of Miscellaneous Buildings · J041 Maint/Repair/Rebuild of Equipment: Refrigeration, Air Conditioning, and Air Circulating Equipment · J045 Maint/Repair/Rebuild of Equipment: Plumbing, Heating, and Waste Disposal Equipment · H999 Other Quality Control, Testing and Inspection Services: Miscellaneous · Z1JZ Maintenance of Miscellaneous Buildings · Z2AA Repair or Alteration of Office Buildings
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