PSC AS21: Transportation R&D Services; Aerospace Research; Basic Research
Service code
Code facts
- Spend category
- Research and Development
- Part of
-
-
A
- AS
-
A
- Contract awards
- 2 In the last 12 months
- Contract obligations
- $5,407,306 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 | -$20,704 |
| FY2026 | $9,571,928 |
| FY2025 | $5,407,306 |
| FY2024 | $6,543,532 |
| FY2023 | $8,680,897 |
Top contractors by obligations
| Rank | Contractor | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Diakon Solutions LLC | $5,920,032 | |
| 2 | Northrop Grumman Systems Corporation | $999,973 | |
| 3 | RTX Corporation | $991,427 | |
| 4 | Crash Research & Analysis, Inc. | $794,004 | |
| 5 | Dynamic Science, Inc. | $791,491 | |
| 6 | Woolpert, Inc. | $289,915 |
Top funding agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of Transportation | $7,559,824 | |
| 2 | National Aeronautics and Space Administration | $1,991,400 |
Top NAICS codes by obligations
| Rank | NAICS code | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | 541330 Engineering Services | $5,705,118 | |
| 2 | 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) | $2,281,315 | |
| 3 | 541910 Marketing Research and Public Opinion Polling | $1,585,495 |
Contract obligations by state
| Rank | Place of performance | Obligated, last 12 months | Share |
|---|---|---|---|
| 1 | New Jersey | $5,920,032 | |
| 2 | California | $999,973 | |
| 3 | Connecticut | $991,427 | |
| 4 | New York | $794,004 | |
| 5 | Virginia | $556,018 | |
| 6 | Ohio | $289,915 |
Shares are of everything obligated under PSC AS21 in the last 12 months before deobligations, including work performed abroad or with no place of performance on record.
Contract opportunities
Show all 25
Quick answers
What is PSC AS21?
PSC AS21 is Transportation R&D Services; Aerospace Research; Basic Research, a service code in PSC A, Research and Development.
How much do federal agencies spend under PSC AS21?
Federal contracts under PSC AS21 obligated $5,407,306 in fiscal year 2025 and $30,182,959 in fiscal years 2023 through 2027.
Who are the largest contractors under PSC AS21?
The contractors with the most obligated under PSC AS21 in fiscal years 2026 and 2027 are Diakon Solutions LLC ($5,920,032), Northrop Grumman Systems Corporation ($999,973) and RTX Corporation ($991,427).
Which agencies buy the most under PSC AS21?
The agencies that obligated the most under PSC AS21 in fiscal years 2026 and 2027 are Department of Transportation ($7,559,824) and National Aeronautics and Space Administration ($1,991,400).
Which NAICS codes are used with PSC AS21?
The NAICS codes with the most obligated under PSC AS21 in fiscal years 2026 and 2027 are 541330 Engineering Services; 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology); and 541910 Marketing Research and Public Opinion Polling.
Where is the work under PSC AS21 performed?
By place of performance, the states with the most contract obligations under PSC AS21 over the last 12 months are New Jersey ($5,920,032), California ($999,973) and Connecticut ($991,427).
What is the latest contract opportunity under PSC AS21?
The latest contract opportunity under PSC AS21 is Engineering Technical Support Services, limited / sole source justification from Armstrong Flight Research Center, posted March 10, 2026.
On GovTribe
See everything under PSC AS21
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