PSC codes › Z1HB
PSC Z1HB — Maintenance of Government-Owned Government-Operated (Gogo) R&D Facilities: federal contracts
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What PSC Z1HB covers
Official definition: GSA PSC Manual (PSC April 2025.xlsx), acquisition.gov/psc-manual. Category: Facilities & Construction › Facility Related Services.
Who is winning new PSC Z1HB work
Contractors ranked by obligations on awards that started FY2024–FY2027 to date.
| Contractor | Obligations | Awards |
|---|---|---|
| AMENTUM SERVICES, INC. | $18.1M | 13 |
| TEYA ENTERPRISES LLC | $10.7M | 2 |
| QAYAQ GOVERNMENT SOLUTIONS LLC | $9.7M | 1 |
| JUSTIN J. REEVES, L.L.C | $8.5M | 5 |
| GENERAL DYNAMICS MISSION SYSTEMS, INC. | $7.5M | 2 |
| PUYENPA CONSTRUCTION, LLC | $7.0M | 8 |
| BOWHEAD MARINE SUPPORT SERVICES, LLC | $6.8M | 1 |
| ADDON SERVICES LLC | $6.6M | 3 |
| NEW DOMINION CONSTRUCTION LLC | $6.5M | 6 |
| D&G SUPPORT SERVICES LLC | $6.1M | 1 |
How competitive is PSC Z1HB?
- 59.0% of obligations on these awards were competed.
- 9.5% of competed awards that report offers drew a single offer (n=63).
- 75.2% went to small businesses.
- The five largest contractors hold 43.4% across 54 contractors.
NAICS codes used on PSC Z1HB awards
| NAICS | Industry | Share |
|---|---|---|
| 236220 | Commercial and Institutional Building Construction | 50.6% |
| 561210 | Facilities Support Services | 25.3% |
| 517919 | All Other Telecommunications | 6.0% |
| 541715 | Research and Development in the Physical, Engineering, and Life Sciences (Except Nanotechnology and Biotechnology) | 4.9% |
| 541990 | All Other Professional, Scientific, and Technical Services | 3.6% |
| 541330 | Engineering Services | 3.3% |
| 541513 | Computer Facilities Management Services | 3.0% |
| 236210 | Industrial Building Construction | 1.6% |
Related PSC codes
Z2JZ Repair or Alteration of Miscellaneous Buildings · Z2AA Repair or Alteration of Office Buildings · Z1AA Maintenance of Office Buildings · Z2AZ Repair or Alteration of Other Administrative Facilities and Service Buildings · R425 Engineering and Technical Services · Y1JZ Construction of Miscellaneous Buildings · Z1JZ Maintenance of Miscellaneous Buildings · J041 Maint/Repair/Rebuild of Equipment: Refrigeration, Air Conditioning, and Air Circulating Equipment
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