PSC codes › Y1AA
PSC Y1AA — Construction of Office Buildings: federal contracts
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- Industry Day Announcement - VACAN Phase III
- Y1AA--Buy American Act Compliant Valves, 2.5-inch and larger
- Upcoming Construction Opportunity: Land Port of Entry Highgate Springs, VT
- Sources Sought - Construction Repair Building 6413 Secure Space (511669 & 519580) Barksdale AFB
- Space Campus IDaC - Sources Sought
- Tegucigalpa Office Setup
- Renovate Suite H8, Building 3
- Presolicitation Notice Court Security Project Construction Colmer FBCT Hattiesburg, MS
- Department of Veteran Affairs - Personnel Security Adjudication Center
- SOLICITATION NOTICE- Massena NY Virtual Law Enforcement Training Facility- Construction
- General Construction Services for Elevator Modernization at the Thurgood Marshall U.S. Courthouse, New York, NY
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What PSC Y1AA covers
Official definition: GSA PSC Manual (PSC April 2025.xlsx), acquisition.gov/psc-manual. Category: Facilities & Construction › Construction Related Services.
Who is winning new PSC Y1AA work
Contractors ranked by obligations on awards that started FY2024–FY2027 to date.
| Contractor | Obligations | Awards |
|---|---|---|
| CADDELL CONSTRUCTION CO. (DE), LLC | $1.4B | 5 |
| CLARK CONSTRUCTION GROUP LLC | $616.3M | 1 |
| BL HARBERT INTERNATIONAL LLC | $263.2M | 3 |
| HENSEL PHELPS CONSTRUCTION CO | $99.0M | 1 |
| BERING-WESTON JV, LLC | $79.5M | 1 |
| AMERICAN INTERNATIONAL CONTRACTORS (SPECIAL PROJECTS) INC. | $69.8M | 1 |
| CONTI FEDERAL SERVICES, LLC | $65.8M | 1 |
| THRASH COMMERCIAL CONTRACTORS, INC. | $62.3M | 1 |
| WALSH FEDERAL LLC | $49.7M | 1 |
| EPIK INTERNATIONAL INC | $46.6M | 3 |
How competitive is PSC Y1AA?
- 93.0% of obligations on these awards were competed.
- 23.0% of competed awards that report offers drew a single offer (n=853).
- 34.5% went to small businesses.
- The five largest contractors hold 54.8% across 479 contractors.
NAICS codes used on PSC Y1AA awards
| NAICS | Industry | Share |
|---|---|---|
| 236220 | Commercial and Institutional Building Construction | 94.2% |
| 561612 | Security Guards and Patrol Services | 1.7% |
| 238220 | Plumbing, Heating, and Air-Conditioning Contractors | 1.0% |
| 541330 | Engineering Services | 1.0% |
| 238160 | Roofing Contractors | 0.9% |
| 561210 | Facilities Support Services | 0.4% |
| 236210 | Industrial Building Construction | 0.4% |
| 238290 | Other Building Equipment Contractors | 0.1% |
Related PSC codes
Z2AA Repair or Alteration of Office Buildings · Y1JZ Construction of Miscellaneous Buildings · Z2JZ Repair or Alteration of Miscellaneous Buildings · Y1AZ Construction of Other Administrative Facilities and Service Buildings · Z2AZ Repair or Alteration of Other Administrative Facilities and Service Buildings · Z1JZ Maintenance of Miscellaneous Buildings · Z1AA Maintenance of Office Buildings · Y1PZ Construction of Other Non-Building Facilities
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