PSC Z2LC: Repair or Alteration of Tunnels and Subsurface Structures
Service code
Code facts
- Spend category
- Facilities & Construction Facility Related Services
- Part of
-
-
Z
- Z2
-
Z
- Contract awards
- 2 In the last 12 months
- Contract obligations
- $5,710,858 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 | $14,203,061 |
| FY2025 | $5,710,858 |
| FY2024 | $6,455,498 |
| FY2023 | $12,525,048 |
Top contractors by obligations
| Rank | Contractor | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Encon Desbuild JV 3 LLC | $9,599,200 | |
| 2 | Tsontos, Michael M., S.A. | $4,399,055 | |
| 3 | Buckeye Industrial Piping LLC | $356,567 | |
| 4 | Parliament LLC | $7,900 |
Top funding agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of the Navy | $13,998,255 | |
| 2 | Department of Veterans Affairs | $356,567 |
Top NAICS codes by obligations
| Rank | NAICS code | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | 236220 Commercial and Institutional Building Construction | $14,195,161 | |
| 2 | 238110 Poured Concrete Foundation and Structure Contractors | $7,900 |
Contract obligations by state
Shares are of everything obligated under PSC Z2LC in the last 12 months before deobligations, including work performed abroad or with no place of performance on record.
Contract opportunities
Show all 40
Quick answers
What is PSC Z2LC?
PSC Z2LC is Repair or Alteration of Tunnels and Subsurface Structures, a service code in PSC Z, Maintenance, Repair, Alteration Real Property.
How much do federal agencies spend under PSC Z2LC?
Federal contracts under PSC Z2LC obligated $5,710,858 in fiscal year 2025 and $38,894,465 in fiscal years 2023 through 2027.
Who are the largest contractors under PSC Z2LC?
The contractors with the most obligated under PSC Z2LC in fiscal years 2026 and 2027 are Encon Desbuild JV 3 LLC ($9,599,200); Tsontos, Michael M., S.A. ($4,399,055); and Buckeye Industrial Piping LLC ($356,567).
Which agencies buy the most under PSC Z2LC?
The agencies that obligated the most under PSC Z2LC in fiscal years 2026 and 2027 are Department of the Navy ($13,998,255) and Department of Veterans Affairs ($356,567).
Which NAICS codes are used with PSC Z2LC?
The NAICS codes with the most obligated under PSC Z2LC in fiscal years 2026 and 2027 are 236220 Commercial and Institutional Building Construction and 238110 Poured Concrete Foundation and Structure Contractors.
Where is the work under PSC Z2LC performed?
By place of performance, the states with the most contract obligations under PSC Z2LC over the last 12 months are Maryland ($9,599,200) and Ohio ($356,567).
What is the latest contract opportunity under PSC Z2LC?
The latest contract opportunity under PSC Z2LC is Lowell Creek Tunnel Repairs, Seward, Alaska, pre-solicitation from ENDIST Alaska (USACE), posted October 19, 2026.
On GovTribe
See everything under PSC Z2LC
- Federal contract opportunities, awards and IDVs under this code
- Funding analysis by contractor, agency and set-aside
- Contacts who buy under this code
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