PSC AC34: National Defense R&D Services; Defense-Related Activities; R&D Administrative Expenses
Service code
Code facts
- Spend category
- Professional Services
- Part of
-
-
A
- AC
-
A
- Contract awards
- 21 In the last 12 months
- Contract obligations
- $65,882,132 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 | $153,918,658 |
| FY2025 | $65,882,132 |
| FY2024 | $94,653,610 |
| FY2023 | $101,275,176 |
Top contractors by obligations
| Rank | Contractor | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Advanced Technology International | $41,012,496 | |
| 2 | Slingshot Aerospace Inc. | $21,989,615 | |
| 3 | Ansys Government Initiatives, LLC | $18,341,067 | |
| 4 | Galapagos Federal Systems LLC | $16,312,000 | |
| 5 | Bowhead Program Management & Operations, LLC | $11,390,416 | |
| 6 | V2X Systems LLC | $10,442,667 | |
| 7 | General Atomics | $4,142,130 | |
| 8 | New Mexico Texas Coaches LLC | $3,935,315 | |
| 9 | Vannevar Labs, Inc. | $3,555,000 | |
| 10 | Chenega Services & Federal Solutions, LLC | $3,165,756 |
See the full FY2025 ranking of PSC AC34 contractors, by parent company.
Top funding agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Air Force | $76,602,571 | |
| 2 | Office of the Secretary of Defense | $43,530,728 | |
| 3 | Department of the Navy | $20,456,494 | |
| 4 | Department of the Army | $6,043,443 | |
| 5 | Defense Health Agency | $5,199,055 | |
| 6 | Defense Logistics Agency | $1,805,299 | |
| 7 | Missile Defense Agency | $281,068 |
Top NAICS codes by obligations
| Rank | NAICS code | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) | $69,164,525 | |
| 2 | 541330 Engineering Services | $14,430,660 | |
| 3 | 561210 Facilities Support Services | $10,442,667 | |
| 4 | 541714 Research and Development in Biotechnology (except Nanobiotechnology) | $5,199,055 | |
| 5 | 336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing | $4,204,389 | |
| 6 | 485113 Bus and Other Motor Vehicle Transit Systems | $3,935,315 | |
| 7 | 541519 Other Computer Related Services | $1,730,500 | |
| 8 | 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) | $273,777 | |
| 9 | 541690 Other Scientific and Technical Consulting Services | $30,250 | |
| 10 | 811490 Other Personal and Household Goods Repair and Maintenance | $2,283 |
Contract obligations by state
| Rank | Place of performance | Obligated, last 12 months | Share |
|---|---|---|---|
| 1 | Virginia | $51,694,081 | |
| 2 | California | $30,707,472 | |
| 3 | Pennsylvania | $18,341,067 | |
| 4 | Hawaii | $15,312,000 | |
| 5 | Alabama | $6,043,443 | |
| 6 | Colorado | $5,253,864 | |
| 7 | Maryland | $5,088,957 | |
| 8 | Texas | $4,211,374 | |
| 9 | Rhode Island | $3,526,939 | |
| 10 | Florida | $1,730,500 | |
| 11 | South Carolina | $1,036,768 | |
| 12 | Oklahoma | $111,179 | |
| 13 | Illinois | $30,250 |
Show all 13
Shares are of everything obligated under PSC AC34 in the last 12 months before deobligations, including work performed abroad or with no place of performance on record.
Contract opportunities
Show all 44
Quick answers
What is PSC AC34?
PSC AC34 is National Defense R&D Services; Defense-Related Activities; R&D Administrative Expenses, a service code in PSC A, Research and Development.
How much do federal agencies spend under PSC AC34?
Federal contracts under PSC AC34 obligated $65,882,132 in fiscal year 2025 and $415,729,578 in fiscal years 2023 through 2027.
Who are the largest contractors under PSC AC34?
The contractors with the most obligated under PSC AC34 in fiscal years 2026 and 2027 are Advanced Technology International ($41,012,496); Slingshot Aerospace Inc. ($21,989,615); and Ansys Government Initiatives, LLC ($18,341,067).
Which agencies buy the most under PSC AC34?
The agencies that obligated the most under PSC AC34 in fiscal years 2026 and 2027 are Air Force ($76,602,571), Office of the Secretary of Defense ($43,530,728) and Department of the Navy ($20,456,494).
Which NAICS codes are used with PSC AC34?
The NAICS codes with the most obligated under PSC AC34 in fiscal years 2026 and 2027 are 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology); 541330 Engineering Services; and 561210 Facilities Support Services.
Where is the work under PSC AC34 performed?
By place of performance, the states with the most contract obligations under PSC AC34 over the last 12 months are Virginia ($51,694,081), California ($30,707,472) and Pennsylvania ($18,341,067).
What is the latest contract opportunity under PSC AC34?
The latest contract opportunity under PSC AC34 is TECHNOLOGY LICENSING OPPORTUNITY: True Silicone DLP Printing Platform, special notice from Department of Energy, posted June 29, 2026.
On GovTribe
See everything under PSC AC34
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