PSC codes › Z1NA
PSC Z1NA — Maintenance of Fuel Supply Facilities: federal contracts
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What PSC Z1NA 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 Z1NA work
Contractors ranked by obligations on awards that started FY2024–FY2027 to date.
| Contractor | Obligations | Awards |
|---|---|---|
| APTIM FEDERAL SERVICES, LLC | $97.0M | 4 |
| POND CONSTRUCTORS INC. | $83.0M | 5 |
| VGS INFRASTRUCTURE SERVICES INC | $78.7M | 6 |
| TETRA TECH INC | $41.5M | 2 |
| WESTON SOLUTIONS INC | $29.3M | 1 |
| ENVIRONMENTAL CHEMICAL CORPORATION | $16.1M | 5 |
| ECCO GMBH | $15.6M | 1 |
| TEPCO ENERGY PARTNER, INCORPORATED | $10.2M | 1 |
| ENVIRONMENTAL CHEMICAL CORPORATION ITALY S.R.L. | $7.0M | 1 |
| MITOMO CO., LTD. | $5.2M | 2 |
How competitive is PSC Z1NA?
- 95.0% of obligations on these awards were competed.
- 20.2% of competed awards that report offers drew a single offer (n=124).
- 2.4% went to small businesses.
- The five largest contractors hold 80.5% across 57 contractors.
NAICS codes used on PSC Z1NA awards
| NAICS | Industry | Share |
|---|---|---|
| 561210 | Facilities Support Services | 71.6% |
| 238990 | All Other Specialty Trade Contractors | 10.7% |
| 541330 | Engineering Services | 10.3% |
| 811310 | Commercial and Industrial Machinery and Equipment (Except Automotive and Electronic) Repair and Maintenance | 3.9% |
| 236220 | Commercial and Institutional Building Construction | 1.5% |
| 237120 | Oil and Gas Pipeline and Related Structures Construction | 0.9% |
| 541990 | All Other Professional, Scientific, and Technical Services | 0.6% |
| 213112 | Support Activities for Oil and Gas Operations | 0.2% |
Related PSC codes
Z2AA Repair or Alteration of Office Buildings · Z2JZ Repair or Alteration of Miscellaneous Buildings · Z1AA Maintenance of Office Buildings · Z1AZ Maintenance of Other Administrative Facilities and Service Buildings · Z2AZ Repair or Alteration of Other Administrative Facilities and Service Buildings · Y1JZ Construction of Miscellaneous Buildings · Z2NZ Repair or Alteration of Other Utilities · J045 Maint/Repair/Rebuild of Equipment: Plumbing, Heating, and Waste Disposal Equipment
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