PSC Z1: Maintenance, Alteration, Repair Buildings
Service group
Code facts
- Part of
-
- Z
- Codes under it
- 114
- Contract awards
- 8,780 In the last 12 months
- Contract obligations
- $7,285,237,943 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 | $45,783,272 |
| FY2026 | $6,955,811,239 |
| FY2025 | $7,285,237,943 |
| FY2024 | $7,969,920,197 |
| FY2023 | $8,264,630,610 |
Top contractors by obligations
| Rank | Contractor | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Central Plateau Cleanup Company, LLC | $605,630,872 | |
| 2 | Amentum Technology, Inc. | $171,003,009 | |
| 3 | S & K Security Group LLC | $136,419,965 | |
| 4 | Asrc Federal Facilities Logistics LLC | $128,769,496 | |
| 5 | J & J Maintenance Inc. | $121,339,247 | |
| 6 | Orion Marine Construction, Inc. | $99,259,100 | |
| 7 | Action Facilities Management Inc. | $94,189,837 | |
| 8 | Jones Lang Lasalle Americas, Inc. | $86,232,064 | |
| 9 | South Dade Air Conditioning & Refrigeration Inc. | $79,099,651 | |
| 10 | Fluor Intercontinental, Inc. | $70,842,494 |
See the full FY2025 ranking of PSC Z1 contractors, by parent company.
Top funding agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of the Army | $1,742,798,451 | |
| 2 | Department of Veterans Affairs | $905,273,674 | |
| 3 | General Services Administration | $616,681,436 | |
| 4 | Department of Energy | $580,397,270 | |
| 5 | Department of the Navy | $570,320,801 | |
| 6 | Air Force | $459,616,388 | |
| 7 | Department of Homeland Security | $410,994,583 | |
| 8 | National Aeronautics and Space Administration | $315,866,493 | |
| 9 | Department of State | $236,787,986 | |
| 10 | Department of Agriculture | $230,648,174 |
Top NAICS codes by obligations
| Rank | NAICS code | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | 561210 Facilities Support Services | $2,671,876,991 | |
| 2 | 236220 Commercial and Institutional Building Construction | $1,486,238,243 | |
| 3 | 237990 Other Heavy and Civil Engineering Construction | $797,674,866 | |
| 4 | 562910 Remediation Services | $583,506,410 | |
| 5 | 238220 Plumbing, Heating, and Air-Conditioning Contractors | $208,836,335 | |
| 6 | 811210 Electronic and Precision Equipment Repair and Maintenance | $143,221,814 | |
| 7 | 237310 Highway, Street, and Bridge Construction | $132,259,905 | |
| 8 | 531311 Residential Property Managers | $104,195,354 | |
| 9 | 236210 Industrial Building Construction | $82,291,104 | |
| 10 | 238210 Electrical Contractors and Other Wiring Installation Contractors | $77,030,393 |
Contract obligations by state
| Rank | Place of performance | Obligated, last 12 months | Share |
|---|---|---|---|
| 1 | Washington | $642,759,929 | |
| 2 | Texas | $589,144,099 | |
| 3 | Florida | $448,713,867 | |
| 4 | Virginia | $428,730,789 | |
| 5 | Maryland | $385,855,757 | |
| 6 | California | $376,266,366 | |
| 7 | Georgia | $347,858,069 | |
| 8 | District of Columbia | $248,203,139 | |
| 9 | New York | $222,101,261 | |
| 10 | Alabama | $201,779,216 | |
| 11 | Montana | $165,272,783 | |
| 12 | North Carolina | $157,453,672 | |
| 13 | Michigan | $153,111,576 | |
| 14 | Pennsylvania | $152,846,108 | |
| 15 | Alaska | $141,880,101 | |
| 16 | Illinois | $121,193,721 | |
| 17 | West Virginia | $121,175,385 | |
| 18 | New Jersey | $120,023,056 | |
| 19 | Oklahoma | $114,153,776 | |
| 20 | Arkansas | $111,032,938 | |
| 21 | Colorado | $102,417,968 | |
| 22 | Massachusetts | $74,175,310 | |
| 23 | Ohio | $72,650,163 | |
| 24 | South Carolina | $69,800,092 | |
| 25 | Arizona | $64,616,805 | |
| 26 | Guam | $58,556,375 | |
| 27 | Tennessee | $57,278,728 | |
| 28 | Mississippi | $53,350,004 | |
| 29 | New Mexico | $51,093,813 | |
| 30 | Louisiana | $49,807,596 | |
| 31 | Hawaii | $43,607,886 | |
| 32 | Wisconsin | $41,355,445 | |
| 33 | Indiana | $38,820,130 | |
| 34 | Wyoming | $35,750,937 | |
| 35 | Kansas | $35,569,245 | |
| 36 | Oregon | $34,501,478 | |
| 37 | Utah | $34,392,808 | |
| 38 | South Dakota | $30,026,316 | |
| 39 | Minnesota | $29,791,037 | |
| 40 | Nevada | $29,130,233 | |
| 41 | Kentucky | $28,619,768 | |
| 42 | Missouri | $26,724,516 | |
| 43 | Rhode Island | $21,385,949 | |
| 44 | North Dakota | $20,579,655 | |
| 45 | Maine | $20,465,041 | |
| 46 | Vermont | $17,781,146 | |
| 47 | Nebraska | $17,772,983 | |
| 48 | Connecticut | $17,228,675 | |
| 49 | Puerto Rico | $15,581,878 | |
| 50 | Idaho | $12,296,274 | |
| 51 | Delaware | $11,162,473 | |
| 52 | Iowa | $10,373,531 | |
| 53 | New Hampshire | $8,358,413 | |
| 54 | U.S. Virgin Islands | $537,548 | |
| 55 | American Samoa | $138,587 |
Show all 55
Shares are of everything obligated under PSC Z1 in the last 12 months before deobligations, including work performed abroad or with no place of performance on record.
Contract opportunities
Show 38 more
Latest 48 of 23,841 listed here. See the rest on GovTribe.
Codes under Z1
Show all 114
Quick answers
What is PSC Z1?
PSC Z1 is Maintenance, Alteration, Repair Buildings, a service group in PSC Z, Maintenance, Repair, Alteration Real Property.
What codes are under PSC Z1?
PSC Z1 has 114 codes under it with their own GovTribe pages, including Z111 Maintenance, Repair or Alteration of Office Buildings; Z112 Maintenance, Repair or Alteration of Conference Space and Facilities; and Z119 Maintenance, Repair or Alteration of Other Administrative Facilities and Service Buildings.
How much do federal agencies spend under PSC Z1?
Federal contracts under PSC Z1 obligated $7,285,237,943 in fiscal year 2025 and $30,521,383,261 in fiscal years 2023 through 2027.
Who are the largest contractors under PSC Z1?
The contractors with the most obligated under PSC Z1 in fiscal years 2026 and 2027 are Central Plateau Cleanup Company, LLC ($605,630,872); Amentum Technology, Inc. ($171,003,009); and S & K Security Group LLC ($136,419,965).
Which agencies buy the most under PSC Z1?
The agencies that obligated the most under PSC Z1 in fiscal years 2026 and 2027 are Department of the Army ($1,742,798,451), Department of Veterans Affairs ($905,273,674) and General Services Administration ($616,681,436).
Which NAICS codes are used with PSC Z1?
The NAICS codes with the most obligated under PSC Z1 in fiscal years 2026 and 2027 are 561210 Facilities Support Services, 236220 Commercial and Institutional Building Construction and 237990 Other Heavy and Civil Engineering Construction.
Where is the work under PSC Z1 performed?
By place of performance, the states with the most contract obligations under PSC Z1 over the last 12 months are Washington ($642,759,929), Texas ($589,144,099) and Florida ($448,713,867).
What is the latest contract opportunity under PSC Z1?
The latest contract opportunity under PSC Z1 is Loading dock concrete repairs, solicitation from Veterans Integrated Service Network 6 (VHA), posted October 23, 2026.
On GovTribe
See everything under PSC Z1
- Federal contract opportunities, awards and IDVs under this code
- Funding analysis by contractor, agency and set-aside
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