PSC AD25: R&D – Defense Other: Services (Operational Systems Development)
Service code
Code facts
- Part of
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-
A
- AD
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A
- Contract obligations
- $87,459,729 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 | $65,244,160 |
| FY2025 | $87,459,729 |
| FY2024 | $27,743,475 |
| FY2023 | $101,237,408 |
Top contractors by obligations
| Rank | Contractor | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Leidos, Inc. | $59,954,434 | |
| 2 | Northrop Grumman Systems Corporation | $3,893,050 | |
| 3 | Washington Metropolitan Area Transit Authority | $1,431,316 |
Top funding agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of Transportation | $61,383,727 | |
| 2 | Department of the Navy | $3,860,433 |
Top NAICS codes by obligations
| Rank | NAICS code | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | 488111 Air Traffic Control | $59,954,434 | |
| 2 | 336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing | $3,893,050 | |
| 3 | 485111 Mixed Mode Transit Systems | $1,431,316 |
Contract obligations by state
| Rank | Place of performance | Obligated, last 12 months | Share |
|---|---|---|---|
| 1 | Virginia | $59,949,432 | |
| 2 | Florida | $3,893,050 | |
| 3 | District of Columbia | $1,431,170 |
Contract opportunities
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Quick answers
What is PSC AD25?
PSC AD25 is R&D – Defense Other: Services (Operational Systems Development), a service code in PSC A, Research and Development.
How much do federal agencies spend under PSC AD25?
Federal contracts under PSC AD25 obligated $87,459,729 in fiscal year 2025 and $281,684,772 in fiscal years 2023 through 2027.
Who are the largest contractors under PSC AD25?
The contractors with the most obligated under PSC AD25 in fiscal years 2026 and 2027 are Leidos, Inc. ($59,954,434); Northrop Grumman Systems Corporation ($3,893,050); and Washington Metropolitan Area Transit Authority ($1,431,316).
Which agencies buy the most under PSC AD25?
The agencies that obligated the most under PSC AD25 in fiscal years 2026 and 2027 are Department of Transportation ($61,383,727) and Department of the Navy ($3,860,433).
Which NAICS codes are used with PSC AD25?
The NAICS codes with the most obligated under PSC AD25 in fiscal years 2026 and 2027 are 488111 Air Traffic Control, 336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing and 485111 Mixed Mode Transit Systems.
Where is the work under PSC AD25 performed?
By place of performance, the states with the most contract obligations under PSC AD25 over the last 12 months are Virginia ($59,949,432), Florida ($3,893,050) and the District of Columbia ($1,431,170).
What is the latest contract opportunity under PSC AD25?
The latest contract opportunity under PSC AD25 is Hazard Prediction and Assessment Capability Simulations (HPAC) for Understanding the Environment as a Threat (UET), award notice from Engineer Research and Development Center (USACE), posted July 14, 2020.
On GovTribe
See everything under PSC AD25
- Federal contract opportunities, awards and IDVs under this code
- Funding analysis by contractor, agency and set-aside
- Contacts who buy under this code
- Ask GovTribe AI about this code