PSC Z1NB: Maintenance of Heating and Cooling Plants
Service code
Code facts
- Spend category
- Facilities & Construction Facility Related Services
- Part of
-
-
Z
- Z1
-
Z
- Contract awards
- 80 In the last 12 months
- Contract obligations
- $81,770,547 In FY2025
PSC codes and definitions come from the GSA PSC Manual and contract spending from SAM.gov/FPDS.
Contract obligations by fiscal year
| Fiscal year | Obligated |
|---|---|
| FY2027 To date | $3,120,508 |
| FY2026 | $51,443,769 |
| FY2025 | $81,770,547 |
| FY2024 | $70,915,863 |
| FY2023 | $64,229,357 |
Top contractors by obligations
| Rank | Contractor | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Sigo Valiant JV II LLC | $22,954,198 | |
| 2 | Energy Systems Group, LLC | $6,970,625 | |
| 3 | Qcm, Inc. | $3,407,000 | |
| 4 | RWH Capital LLC | $3,169,599 | |
| 5 | Aml-American Made Logistics | $3,120,508 | |
| 6 | Lego Construction Co | $2,197,140 | |
| 7 | Performanceepc-Greenland JV LLC | $1,222,178 | |
| 8 | Caldaia Controls LLC | $973,635 | |
| 9 | CPF LLC | $930,679 | |
| 10 | Capitol United Solutions Inc. | $831,069 |
See the full FY2025 ranking of PSC Z1NB contractors, by parent company.
Top funding agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of Veterans Affairs | $33,936,685 | |
| 2 | National Aeronautics and Space Administration | $6,970,625 | |
| 3 | Washington Headquarters Service | $3,407,000 | |
| 4 | Department of State | $3,090,956 | |
| 5 | Department of Homeland Security | $2,251,898 | |
| 6 | Department of Agriculture | $1,132,650 | |
| 7 | Department of the Navy | $913,853 | |
| 8 | Department of Justice | $750,257 | |
| 9 | Department of the Army | $741,200 | |
| 10 | Department of the Interior | $667,640 |
Top NAICS codes by obligations
| Rank | NAICS code | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | 236220 Commercial and Institutional Building Construction | $26,571,584 | |
| 2 | 238220 Plumbing, Heating, and Air-Conditioning Contractors | $11,627,960 | |
| 3 | 541330 Engineering Services | $6,970,625 | |
| 4 | 561210 Facilities Support Services | $5,142,816 | |
| 5 | 221330 Steam and Air-Conditioning Supply | $1,422,152 | |
| 6 | 811310 Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance | $537,239 | |
| 7 | 333415 Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing | $521,471 | |
| 8 | 325998 All Other Miscellaneous Chemical Product and Preparation Manufacturing | $356,916 | |
| 9 | 561320 Temporary Help Services | $188,761 | |
| 10 | 332410 Power Boiler and Heat Exchanger Manufacturing | $182,834 |
Contract obligations by state
| Rank | Place of performance | Obligated, last 12 months | Share |
|---|---|---|---|
| 1 | North Carolina | $23,044,199 | |
| 2 | Indiana | $7,072,600 | |
| 3 | Texas | $4,503,810 | |
| 4 | Virginia | $3,502,581 | |
| 5 | Alabama | $3,063,090 | |
| 6 | Pennsylvania | $1,291,332 | |
| 7 | Maryland | $1,026,866 | |
| 8 | District of Columbia | $961,069 | |
| 9 | Illinois | $951,620 | |
| 10 | California | $486,755 | |
| 11 | Kentucky | $433,920 | |
| 12 | Arizona | $245,502 | |
| 13 | Wyoming | $164,344 | |
| 14 | Ohio | $139,327 | |
| 15 | Oregon | $120,884 | |
| 16 | Mississippi | $93,859 | |
| 17 | Michigan | $93,117 | |
| 18 | Colorado | $76,720 | |
| 19 | West Virginia | $54,991 | |
| 20 | South Dakota | $54,168 | |
| 21 | Minnesota | $52,089 | |
| 22 | Idaho | $43,547 | |
| 23 | Hawaii | $39,721 | |
| 24 | New Mexico | $31,099 | |
| 25 | Wisconsin | $28,972 | |
| 26 | Massachusetts | $28,709 | |
| 27 | Arkansas | $20,800 | |
| 28 | New Jersey | $20,112 | |
| 29 | Louisiana | $14,150 | |
| 30 | Florida | $12,374 | |
| 31 | Utah | $5,915 | |
| 32 | Montana | $5,000 | |
| 33 | Nebraska | $4,845 | |
| 34 | Maine | $2,850 |
Show all 34
Shares are of everything obligated under PSC Z1NB in the last 12 months before deobligations, including work performed abroad or with no place of performance on record.
Contract opportunities
Show 40 more
Latest 50 of 291 listed here. See the rest on GovTribe.
Quick answers
What is PSC Z1NB?
PSC Z1NB is Maintenance of Heating and Cooling Plants, a service code in PSC Z, Maintenance, Repair, Alteration Real Property.
How much do federal agencies spend under PSC Z1NB?
Federal contracts under PSC Z1NB obligated $81,770,547 in fiscal year 2025 and $271,480,043 in fiscal years 2023 through 2027.
Who are the largest contractors under PSC Z1NB?
The contractors with the most obligated under PSC Z1NB in fiscal years 2026 and 2027 are Sigo Valiant JV II LLC ($22,954,198); Energy Systems Group, LLC ($6,970,625); and Qcm, Inc. ($3,407,000).
Which agencies buy the most under PSC Z1NB?
The agencies that obligated the most under PSC Z1NB in fiscal years 2026 and 2027 are Department of Veterans Affairs ($33,936,685), National Aeronautics and Space Administration ($6,970,625) and Washington Headquarters Service ($3,407,000).
Which NAICS codes are used with PSC Z1NB?
The NAICS codes with the most obligated under PSC Z1NB in fiscal years 2026 and 2027 are 236220 Commercial and Institutional Building Construction; 238220 Plumbing, Heating, and Air-Conditioning Contractors; and 541330 Engineering Services.
Where is the work under PSC Z1NB performed?
By place of performance, the states with the most contract obligations under PSC Z1NB over the last 12 months are North Carolina ($23,044,199), Indiana ($7,072,600) and Texas ($4,503,810).
What is the latest contract opportunity under PSC Z1NB?
The latest contract opportunity under PSC Z1NB is Testing & Inspecting, Preventative Maintenance (PM), Corrective Repairs, and Service Calls for NTX VA Cogeneration and Boiler Chiller Plant, award notice from Veterans Integrated Service Network 17 (VHA), posted October 19, 2026.
On GovTribe
See everything under PSC Z1NB
- Federal contract opportunities, awards and IDVs under this code
- Funding analysis by contractor, agency and set-aside
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