PSC AS31: Transportation R&D Services; Water Transportation; Basic Research

Service code

Code facts

Spend category
Research and Development
Contract obligations
$352,703 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 $947,185
FY2025 $352,703
FY2024 -$248,388
FY2023 $2,403,905

Top contractors by obligations

Rank Contractor Obligated, FY2026–FY2027 Share
1 Rhomberg Sersa USA Inc. $508,608
2 University Of South Carolina $330,000
3 Jackson State University $118,527

Top funding agencies by obligations

Rank Agency Obligated, FY2026–FY2027 Share
1 Department of Transportation $947,185

Contract obligations by state

Rank Place of performance Obligated, last 12 months Share
1 Florida $508,608
2 Colorado $330,000
3 Mississippi $118,527

Contract opportunities

Notice Posted Due
Special notice of intent to award to a sole source Special Notice · Fish and Wildlife Service
Transportation via Charter Boat Special Notice · Animal and Plant Health Inspection Service
R/V Boat Captain Solicitation · Office of Acquisitions and Grants (USGS)
Layberth services for two Cape I class Ro/Ro vessels on the US West Coast Solicitation · Maritime Administration
Predictive Scheduling System Development For Railroad Workers Synopses Pre-Solicitation · Federal Railroad Administration
Justification for other than full and open competition Limited / Sole Source Justification · Federal Railroad Administration —
JUSTIFICATION FOR OTHER THAN FULL AND OPEN COMPETITION for “IMPROVEMENTS TO AND SUPPORT OF GPR SYSTEM DEPLOYED ON DOTX 220” Limited / Sole Source Justification · Federal Railroad Administration —
Justification For Other Than Full and Open Competition “Further Refinement and Enhanced Capabilities of AI-TrackRisk” Limited / Sole Source Justification · Federal Railroad Administration —
Justification For Other Than Full and Open Competition"UNSATURATED CHARACTERISTICS OF FOULED BALLAST" Limited / Sole Source Justification · Federal Railroad Administration —
Notice of intent to award a sole source contract, “unsaturated characteristics of fouled ballast" Special Notice · Federal Railroad Administration
NOTICE OF INTENT TO AWARD A SOLE SOURCE CONTRACT, for “IMPROVEMENTS TO AND SUPPORT OF GPR SYSTEM DEPLOYED ON DOTX 220” Special Notice · Federal Railroad Administration
NOTICE OF INTENT TO AWARD A SOLE SOURCE CONTRACT, “Further Refinement and Enhanced Capabilities of AI-TrackRisk” Special Notice · Federal Railroad Administration
Notice of intent to award a sole source contract Special Notice · Federal Railroad Administration
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Quick answers

What is PSC AS31?

PSC AS31 is Transportation R&D Services; Water Transportation; Basic Research, a service code in PSC A, Research and Development.

How much do federal agencies spend under PSC AS31?

Federal contracts under PSC AS31 obligated $352,703 in fiscal year 2025 and $3,455,405 in fiscal years 2023 through 2027.

Who are the largest contractors under PSC AS31?

The contractors with the most obligated under PSC AS31 in fiscal years 2026 and 2027 are Rhomberg Sersa USA Inc. ($508,608), University Of South Carolina ($330,000) and Jackson State University ($118,527).

Which agencies buy the most under PSC AS31?

The agencies that obligated the most under PSC AS31 in fiscal years 2026 and 2027 are Department of Transportation ($947,185).

Which NAICS codes are used with PSC AS31?

The NAICS codes with the most obligated under PSC AS31 in fiscal years 2026 and 2027 are 541330 Engineering Services and 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology).

Where is the work under PSC AS31 performed?

By place of performance, the states with the most contract obligations under PSC AS31 over the last 12 months are Florida ($508,608), Colorado ($330,000) and Mississippi ($118,527).

What is the latest contract opportunity under PSC AS31?

The latest contract opportunity under PSC AS31 is Special notice of intent to award to a sole source, special notice from Fish and Wildlife Service, posted July 24, 2026.

On GovTribe

See everything under PSC AS31

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