PSC Y1BZ: Construction of Other Airfield Structures
Service code
Code facts
- Spend category
- Facilities & Construction Construction Related Services
- Part of
-
-
Y
- Y1
-
Y
- Contract awards
- 42 In the last 12 months
- Contract obligations
- $1,079,046,053 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 | $173,262 |
| FY2026 | $820,008,849 |
| FY2025 | $1,079,046,053 |
| FY2024 | $1,066,230,962 |
| FY2023 | $1,439,523,204 |
Top contractors by obligations
| Rank | Contractor | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Walsh Federal LLC | $414,812,818 | |
| 2 | BL Harbert International LLC | $102,472,497 | |
| 3 | Clark Construction Group - California, LP | $61,460,065 | |
| 4 | Federal Contracting Inc. | $60,121,882 | |
| 5 | Conti Federal Services, LLC | $48,801,276 | |
| 6 | L.s. Black Constructors, LLC | $22,092,640 | |
| 7 | Coffman Specialties, Inc. | $17,687,140 | |
| 8 | T.f. Powers Construction Co | $7,081,358 | |
| 9 | Gilbane Japan GK | $5,568,593 | |
| 10 | Korte Construction Company | $5,442,351 |
See the full FY2025 ranking of PSC Y1BZ contractors, by parent company.
Top funding agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of the Navy | $485,601,097 | |
| 2 | Department of the Army | $291,473,561 | |
| 3 | Department of Transportation | $21,060,522 | |
| 4 | Air Force | $18,837,527 | |
| 5 | Department of Homeland Security | $1,970,359 | |
| 6 | Department of Agriculture | $632,058 | |
| 7 | Department of the Interior | $606,987 |
Top NAICS codes by obligations
| Rank | NAICS code | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | 236220 Commercial and Institutional Building Construction | $781,683,581 | |
| 2 | 237310 Highway, Street, and Bridge Construction | $17,822,861 | |
| 3 | 237130 Power and Communication Line and Related Structures Construction | $12,008,127 | |
| 4 | 238120 Structural Steel and Precast Concrete Contractors | $2,387,416 | |
| 5 | 238990 All Other Specialty Trade Contractors | $2,235,408 | |
| 6 | 236210 Industrial Building Construction | $1,371,636 | |
| 7 | 238160 Roofing Contractors | $1,228,836 | |
| 8 | 541330 Engineering Services | $832,647 | |
| 9 | 238220 Plumbing, Heating, and Air-Conditioning Contractors | $588,051 | |
| 10 | 238110 Poured Concrete Foundation and Structure Contractors | $90,753 |
Contract obligations by state
| Rank | Place of performance | Obligated, last 12 months | Share |
|---|---|---|---|
| 1 | North Carolina | $288,707,108 | |
| 2 | South Dakota | $124,104,479 | |
| 3 | Maryland | $112,726,118 | |
| 4 | Arkansas | $103,864,737 | |
| 5 | California | $81,778,413 | |
| 6 | Virginia | $18,282,180 | |
| 7 | North Dakota | $11,734,211 | |
| 8 | Nevada | $10,754,804 | |
| 9 | Oklahoma | $4,904,992 | |
| 10 | Mississippi | $4,758,074 | |
| 11 | Georgia | $4,133,453 | |
| 12 | Puerto Rico | $3,990,000 | |
| 13 | Illinois | $2,990,130 | |
| 14 | Alaska | $2,794,651 | |
| 15 | Michigan | $2,452,367 | |
| 16 | South Carolina | $2,374,985 | |
| 17 | Texas | $2,192,259 | |
| 18 | Wyoming | $2,080,911 | |
| 19 | Wisconsin | $1,775,000 | |
| 20 | Maine | $1,732,851 | |
| 21 | Kansas | $1,509,448 | |
| 22 | Idaho | $1,371,636 | |
| 23 | Oregon | $1,268,567 | |
| 24 | Nebraska | $1,248,382 | |
| 25 | Hawaii | $866,016 | |
| 26 | District of Columbia | $854,492 | |
| 27 | Minnesota | $788,560 | |
| 28 | Colorado | $588,157 | |
| 29 | Florida | $519,641 | |
| 30 | Pennsylvania | $487,360 | |
| 31 | New Mexico | $481,367 | |
| 32 | Iowa | $425,971 | |
| 33 | Washington | $403,410 | |
| 34 | New York | $228,619 | |
| 35 | Alabama | $138,918 | |
| 36 | Utah | $38,278 | |
| 37 | Missouri | $23,213 | |
| 38 | Arizona | $552 |
Show all 38
Shares are of everything obligated under PSC Y1BZ 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 659 listed here. See the rest on GovTribe.
Quick answers
What is PSC Y1BZ?
PSC Y1BZ is Construction of Other Airfield Structures, a service code in PSC Y, Construction of Structures/
How much do federal agencies spend under PSC Y1BZ?
Federal contracts under PSC Y1BZ obligated $1,079,046,053 in fiscal year 2025 and $4,404,982,330 in fiscal years 2023 through 2027.
Who are the largest contractors under PSC Y1BZ?
The contractors with the most obligated under PSC Y1BZ in fiscal years 2026 and 2027 are Walsh Federal LLC ($414,812,818); BL Harbert International LLC ($102,472,497); and Clark Construction Group - California, LP ($61,460,065).
Which agencies buy the most under PSC Y1BZ?
The agencies that obligated the most under PSC Y1BZ in fiscal years 2026 and 2027 are Department of the Navy ($485,601,097), Department of the Army ($291,473,561) and Department of Transportation ($21,060,522).
Which NAICS codes are used with PSC Y1BZ?
The NAICS codes with the most obligated under PSC Y1BZ in fiscal years 2026 and 2027 are 236220 Commercial and Institutional Building Construction; 237310 Highway, Street, and Bridge Construction; and 237130 Power and Communication Line and Related Structures Construction.
Where is the work under PSC Y1BZ performed?
By place of performance, the states with the most contract obligations under PSC Y1BZ over the last 12 months are North Carolina ($288,707,108), South Dakota ($124,104,479) and Maryland ($112,726,118).
What is the latest contract opportunity under PSC Y1BZ?
The latest contract opportunity under PSC Y1BZ is F-35 Composite Repair and Training Facility / F-35 Maintenance Facility, Hill Air Force Base, Utah, special notice from ENDIST Sacramento (USACE), posted October 21, 2026.
On GovTribe
See everything under PSC Y1BZ
- Federal contract opportunities, awards and IDVs under this code
- Funding analysis by contractor, agency and set-aside
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