PSC codes › Z2NB
PSC Z2NB — Repair or Alteration of Heating and Cooling Plants: federal contracts
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What PSC Z2NB 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 Z2NB work
Contractors ranked by obligations on awards that started FY2024–FY2027 to date.
| Contractor | Obligations | Awards |
|---|---|---|
| COPPER CONSTRUCTION COMPANY, INC. | $16.8M | 1 |
| VETERANS CONTRACTING, INC. | $12.5M | 1 |
| ENCON DESBUILD JV 2 LLC | $6.9M | 1 |
| NIHON MECCS CO.,LTD. | $3.6M | 2 |
| MA-CHIS C & C CONTRACTORS LLC | $3.6M | 1 |
| NORTHWEST HVAC SOLUTIONS, LLC | $2.8M | 1 |
| DEFENDER CONTRACTING & CONSTRUCTION LLC | $2.3M | 1 |
| GUNCO. L.L.C. | $2.2M | 1 |
| CER, INCORPORATED | $1.9M | 1 |
| PREMIER MECHANICAL PRODUCTS LLC | $1.9M | 2 |
How competitive is PSC Z2NB?
- 78.3% of obligations on these awards were competed.
- 29.7% of competed awards that report offers drew a single offer (n=74).
- 86.5% went to small businesses.
- The five largest contractors hold 50.8% across 117 contractors.
NAICS codes used on PSC Z2NB awards
| NAICS | Industry | Share |
|---|---|---|
| 238220 | Plumbing, Heating, and Air-Conditioning Contractors | 51.7% |
| 236220 | Commercial and Institutional Building Construction | 34.9% |
| 236210 | Industrial Building Construction | 6.4% |
| 561210 | Facilities Support Services | 4.8% |
| 334290 | Other Communications Equipment Manufacturing | 0.6% |
| 333415 | Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing | 0.5% |
| 811310 | Commercial and Industrial Machinery and Equipment (Except Automotive and Electronic) Repair and Maintenance | 0.5% |
| 237110 | Water and Sewer Line and Related Structures Construction | 0.2% |
Related PSC codes
Z2JZ Repair or Alteration of Miscellaneous Buildings · Z2AA Repair or Alteration of Office Buildings · J041 Maint/Repair/Rebuild of Equipment: Refrigeration, Air Conditioning, and Air Circulating Equipment · J045 Maint/Repair/Rebuild of Equipment: Plumbing, Heating, and Waste Disposal Equipment · Z2AZ Repair or Alteration of Other Administrative Facilities and Service Buildings · Y1JZ Construction of Miscellaneous Buildings · Z1JZ Maintenance of Miscellaneous Buildings · Z1AZ Maintenance of Other Administrative Facilities and Service Buildings
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