PSC codes › Z1JA
PSC Z1JA — Maintenance of Museums and Exhibition Buildings: federal contracts
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What PSC Z1JA 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 Z1JA work
Contractors ranked by obligations on awards that started FY2024–FY2027 to date.
| Contractor | Obligations | Awards |
|---|---|---|
| ELCON ENTERPRISES INC | $5.1M | 10 |
| CONSTRUCTORA ROGERS, S.A. (CONROSA) | $4.1M | 4 |
| ROMANA PROSPERITY CONSTRUCTION CORPORATION | $3.7M | 9 |
| HUANG-CFM JOINT VENTURE | $3.3M | 5 |
| DIAZ Y GUARDIA, S.A. | $3.0M | 1 |
| TERRA SITE CONSTRUCTORS LLC | $2.6M | 7 |
| DAVIS MEMORIAL GOODWILL INDUSTRIES | $1.1M | 1 |
| AEON PRESERVATION SERVICES, LLC | $909K | 2 |
| BELT BUILT CONTRACTING, LLC | $802K | 4 |
| RITZ CONSTRUCTION INC | $723K | 4 |
How competitive is PSC Z1JA?
- 74.7% of obligations on these awards were competed.
- 47.8% of competed awards that report offers drew a single offer (n=46).
- 49.2% went to small businesses.
- The five largest contractors hold 63.4% across 48 contractors.
NAICS codes used on PSC Z1JA awards
| NAICS | Industry | Share |
|---|---|---|
| 236220 | Commercial and Institutional Building Construction | 88.8% |
| 712110 | Museums | 3.9% |
| 238160 | Roofing Contractors | 1.8% |
| 238320 | Painting and Wall Covering Contractors | 1.2% |
| 561612 | Security Guards and Patrol Services | 1.1% |
| 541490 | Other Specialized Design Services | 0.7% |
| 541618 | Other Management Consulting Services | 0.6% |
| 238220 | Plumbing, Heating, and Air-Conditioning Contractors | 0.5% |
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 · Y1JZ Construction of Miscellaneous Buildings · Z2QA Repair or Alteration of Restoration of Real Property (Public or Private) · Y1AA Construction of Office Buildings · Z1JZ Maintenance of Miscellaneous Buildings
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