PSC Z235: Maintenance, Repair or Alteration of EPG Facilities – Nuclear
Service code
Code facts
- Part of
-
-
Z
- Z2
-
Z
- Contract obligations
- $54,068,923 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 | $0 |
| FY2026 | $57,944,772 |
| FY2025 | $54,068,923 |
| FY2024 | $54,220,295 |
| FY2023 | $55,695,591 |
Top contractors by obligations
| Rank | Contractor | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Isotek Systems, LLC | $57,944,772 |
Top funding agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of Energy | $57,944,772 |
Top NAICS codes by obligations
| Rank | NAICS code | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | 561990 All Other Support Services | $57,944,772 |
Contract obligations by state
| Rank | Place of performance | Obligated, last 12 months | Share |
|---|---|---|---|
| 1 | Tennessee | $57,944,772 |
Quick answers
What is PSC Z235?
PSC Z235 is Maintenance, Repair or Alteration of EPG Facilities – Nuclear, a service code in PSC Z, Maintenance, Repair, Alteration Real Property.
How much do federal agencies spend under PSC Z235?
Federal contracts under PSC Z235 obligated $54,068,923 in fiscal year 2025 and $221,929,581 in fiscal years 2023 through 2027.
Who are the largest contractors under PSC Z235?
The contractors with the most obligated under PSC Z235 in fiscal years 2026 and 2027 are Isotek Systems, LLC ($57,944,772).
Which agencies buy the most under PSC Z235?
The agencies that obligated the most under PSC Z235 in fiscal years 2026 and 2027 are Department of Energy ($57,944,772).
Which NAICS codes are used with PSC Z235?
The NAICS codes with the most obligated under PSC Z235 in fiscal years 2026 and 2027 are 561990 All Other Support Services.
Where is the work under PSC Z235 performed?
By place of performance, the states with the most contract obligations under PSC Z235 over the last 12 months are Tennessee ($57,944,772).
On GovTribe
See everything under PSC Z235
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