PSC AC35: National Defense R&D Services; Defense-Related Activities; R&D Facilities & Major Equipment
Service code
Code facts
- Spend category
- Research and Development
- Part of
-
-
A
- AC
-
A
- Contract awards
- 10 In the last 12 months
- Contract obligations
- $399,815,981 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 | $96,068,937 |
| FY2025 | $399,815,981 |
| FY2024 | $209,696,218 |
| FY2023 | $60,232,699 |
Top contractors by obligations
| Rank | Contractor | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Advanced Technology International | $48,939,851 | |
| 2 | ECS Federal, LLC | $9,481,000 | |
| 3 | Morsecorp, Inc. | $9,022,866 | |
| 4 | Expedition Technology, LLC | $8,550,000 | |
| 5 | Seemann Composites, LLC | $4,248,177 | |
| 6 | Armada, LTD. | $2,731,475 | |
| 7 | Ausgar Technologies, Inc. | $1,797,110 | |
| 8 | W R Systems LTD. | $1,782,971 | |
| 9 | NTI Corporation | $1,562,640 | |
| 10 | TDI Technologies, Inc. | $1,384,237 |
Top funding agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Office of the Secretary of Defense | $50,171,101 | |
| 2 | Department of the Army | $28,818,947 | |
| 3 | Department of the Navy | $16,544,000 | |
| 4 | Washington Headquarters Service | $320,764 | |
| 5 | Defense Threat Reduction Agency | $250,000 | |
| 6 | Defense Information Systems Agency | $17,397 |
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) | $29,719,713 | |
| 2 | 541330 Engineering Services | $8,175,189 | |
| 3 | 336611 Ship Building and Repairing | $4,200,020 | |
| 4 | 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing | $2,654,971 | |
| 5 | 334519 Other Measuring and Controlling Device Manufacturing | $1,217,108 | |
| 6 | 541512 Computer Systems Design Services | $17,397 |
Contract obligations by state
| Rank | Place of performance | Obligated, last 12 months | Share |
|---|---|---|---|
| 1 | California | $32,424,436 | |
| 2 | Virginia | $23,021,816 | |
| 3 | Montana | $20,892,487 | |
| 4 | Massachusetts | $8,989,576 | |
| 5 | Mississippi | $3,552,859 | |
| 6 | Rhode Island | $2,731,475 | |
| 7 | Connecticut | $1,300,000 | |
| 8 | Hawaii | $982,362 | |
| 9 | Maryland | $962,640 | |
| 10 | Arizona | $17,397 |
Shares are of everything obligated under PSC AC35 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 67 listed here. See the rest on GovTribe.
Quick answers
What is PSC AC35?
PSC AC35 is National Defense R&D Services; Defense-Related Activities; R&D Facilities & Major Equipment, a service code in PSC A, Research and Development.
How much do federal agencies spend under PSC AC35?
Federal contracts under PSC AC35 obligated $399,815,981 in fiscal year 2025 and $765,813,835 in fiscal years 2023 through 2027.
Who are the largest contractors under PSC AC35?
The contractors with the most obligated under PSC AC35 in fiscal years 2026 and 2027 are Advanced Technology International ($48,939,851); ECS Federal, LLC ($9,481,000); and Morsecorp, Inc. ($9,022,866).
Which agencies buy the most under PSC AC35?
The agencies that obligated the most under PSC AC35 in fiscal years 2026 and 2027 are Office of the Secretary of Defense ($50,171,101), Department of the Army ($28,818,947) and Department of the Navy ($16,544,000).
Which NAICS codes are used with PSC AC35?
The NAICS codes with the most obligated under PSC AC35 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 336611 Ship Building and Repairing.
Where is the work under PSC AC35 performed?
By place of performance, the states with the most contract obligations under PSC AC35 over the last 12 months are California ($32,424,436), Virginia ($23,021,816) and Montana ($20,892,487).
What is the latest contract opportunity under PSC AC35?
The latest contract opportunity under PSC AC35 is Secured Unclassified Network (SUNet) System Legacy, award notice from ACC Aberdeen Proving Ground, posted September 2, 2026.
On GovTribe
See everything under PSC AC35
- Federal contract opportunities, awards and IDVs under this code
- Funding analysis by contractor, agency and set-aside
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