PSC codes › Z1BZ
PSC Z1BZ — Maintenance of Other Airfield Structures: federal contracts
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What PSC Z1BZ 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 Z1BZ work
Contractors ranked by obligations on awards that started FY2024–FY2027 to date.
| Contractor | Obligations | Awards |
|---|---|---|
| GRUNLEY CONSTRUCTION CO., INC. | $39.8M | 1 |
| KASER MECHANICAL LLC | $5.1M | 1 |
| MCKENZIE CONSTRUCTION & SITE DEVELOPMENT LLC | $3.0M | 1 |
| BATTISTELLA S.P.A. | $2.6M | 3 |
| WITCO INDUSTRIES LTD. | $2.6M | 1 |
| UPSTATE CONSTRUCTION SERVICES INC | $2.3M | 1 |
| SUMIJU YOKOSUKA KOGYO CO., LTD. | $2.2M | 1 |
| MDM CONSTRUCTION SUPPLY, LLC | $1.7M | 1 |
| DAP CONSTRUCTION MANAGEMENT LLC | $1.6M | 1 |
| ONOPA SERVICES LLC | $1.4M | 1 |
How competitive is PSC Z1BZ?
- 90.7% of obligations on these awards were competed.
- 13.3% of competed awards that report offers drew a single offer (n=45).
- 29.8% went to small businesses.
- The five largest contractors hold 63.9% across 69 contractors.
NAICS codes used on PSC Z1BZ awards
| NAICS | Industry | Share |
|---|---|---|
| 236220 | Commercial and Institutional Building Construction | 77.2% |
| 238220 | Plumbing, Heating, and Air-Conditioning Contractors | 7.0% |
| 561210 | Facilities Support Services | 5.0% |
| 238990 | All Other Specialty Trade Contractors | 2.9% |
| 238210 | Electrical Contractors and Other Wiring Installation Contractors | 1.2% |
| 238290 | Other Building Equipment Contractors | 1.1% |
| 238160 | Roofing Contractors | 0.9% |
| 238190 | Other Foundation, Structure, and Building Exterior Contractors | 0.8% |
Related PSC codes
Z2JZ Repair or Alteration of Miscellaneous Buildings · Z2AA Repair or Alteration of Office Buildings · Z2AZ Repair or Alteration of Other Administrative Facilities and Service Buildings · Z1AA Maintenance of Office Buildings · Z1JZ Maintenance of Miscellaneous Buildings · Z1AZ Maintenance of Other Administrative Facilities and Service Buildings · Z2EB Repair or Alteration of Maintenance Buildings · Y1JZ Construction of Miscellaneous Buildings
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