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Agency opportunities

Department of Transportation (DOT) contracts

Live DOT solicitations open for bid on SAM.gov. Approximately $12 billion in direct contracts; over $80 billion in grants (much of which flows to state DOT procurement).

64 opportunities open now

Combined Synopsis/SolicitationNONE
Closes tomorrow

Headquarters Building (HQB) Mechanical and Electrical Upgrades at the Mike Monroney Aeronautical Center (MMAC), Oklahoma City, OK.

Transportation, Department of

236220 · Commercial and Institutional Building … Oklahoma Posted Jun 06, 2026
Sources Sought
Closes in 3 days

Legacy Radar Electronics and Cabinet Disposition

Transportation, Department of

562112 · Waste Management and Remediation Servi… Oklahoma Posted Jun 05, 2026
Special NoticeNONE
Closes in 10 days

SOLE SOURCE SPECIAL NOTICE

Transportation, Department of

513110 · Broadcasting and Content Providers District of Columbia Posted Jun 05, 2026
SolicitationSmall Business
Closes Jul 30, 2026

Ground Maintenance and Snow Removal Services

Transportation, Department of

561730 · Landscaping Services New Jersey Posted Jun 05, 2026
Special Notice
Closes in 13 days

Notice of Intent to Single Source: Weston Solutions, Inc. (Weston)

Transportation, Department of

541620 · Environmental Consulting Services Oklahoma Posted Jun 05, 2026
Sources Sought
Closes in 27 days

VHF/FM Radio Equipment, Software, & Associated Support Services

Transportation, Department of

334290 · Other Communications Equipment Manufac… District of Columbia Posted Jun 05, 2026
SolicitationNONE
Closes Jul 20, 2026

Intersection Safety Systems (ISS) Prototyping

Transportation, Department of

541715 · R&D in the Physical, Engineering, and … District of Columbia Posted Jun 05, 2026
Combined Synopsis/SolicitationNONE
Closes tomorrow

Headquarters Building (HQB) Mechanical and Electrical Upgrades at the Mike Monroney Aeronautical Center (MMAC), Oklahoma City, OK.

Transportation, Department of

236220 · Commercial and Institutional Building … Oklahoma Posted Jun 04, 2026
Sources Sought
Closes in 27 days

Request for Information (RFI) regarding the potential to lease new RO/ROs vessels.

Transportation, Department of

532411 · Rental and Leasing Services District of Columbia Posted Jun 04, 2026
Solicitation
Closes in 3 days

S&RTS, Gdansk, Poland

Dept of Defense

488320 · Support Activities for Transportation Posted Jun 04, 2026
Sources Sought
Closes in 27 days

VHF/FM Radio Equipment, Software, & Associated Support Services

Transportation, Department of

334290 · Other Communications Equipment Manufac… District of Columbia Posted Jun 04, 2026
Combined Synopsis/SolicitationNONE
Closes in 27 days

Guam S&RTS Solicitation

Dept of Defense

488320 · Support Activities for Transportation Guam Posted Jun 04, 2026
Special NoticeNONE
Closes in 6 days

Works Association (APWA) Membership

Transportation, Department of

813910 · Religious, Grantmaking, Civic, Profess… District of Columbia Posted Jun 04, 2026
Sources Sought
Closes in 16 days

Renovation of the Thomas P. Stafford Building at the Mike Monroney Aeronautical Center

Transportation, Department of

236220 · Commercial and Institutional Building … Oklahoma Posted Jun 04, 2026
Combined Synopsis/SolicitationSmall Business
Closes in 13 days

Paving Improvements at Eisenhower and Snell Locks

Transportation, Department of

237310 · Highway, Street, and Bridge Constructi… New York Posted Jun 03, 2026
SolicitationNONE
Closes tomorrow

NV FLAP NYE 10(1) Bob Ruud Mem Hwy & Bell Vista Ave

Transportation, Department of

237310 · Highway, Street, and Bridge Constructi… Nevada Posted Jun 03, 2026
Sources SoughtWOSB
Closes tomorrow

ARP HQ Strategic Planning Support

Transportation, Department of

541611 · Administrative Management and General … District of Columbia Posted Jun 03, 2026
Solicitation
Closes in 22 days

WA NP MORA 11(1), Fryingpan Creek Bridge

Transportation, Department of

237310 · Highway, Street, and Bridge Constructi… Washington Posted Jun 03, 2026
SolicitationSmall Business
Closes in 28 days

U.S. Department of Transportation Small Business Innovation Research Fiscal Year 2026 Phase I Solicitation

Transportation, Department of

541715 · R&D in the Physical, Engineering, and … Posted Jun 03, 2026
Special Notice
Closes in 13 days

"How To Do Business With TSA Webinar"

Homeland Security, Department of

Virginia Posted Jun 03, 2026
Sources SoughtSmall Business
Closes tomorrow

ZMP ARTCC Water Treatment Services, MN

Transportation, Department of

221310 · Utilities Minnesota Posted Jun 01, 2026
Sources Sought
Closes in 13 days

Mike Monroney Aeronautical Center (MMAC) D11 Building 219 Renovation

Transportation, Department of

236220 · Commercial and Institutional Building … Oklahoma Posted Jun 01, 2026
SolicitationNONE
Closes in 17 days

Seeking vendors for Remote Tower Systems (RTS) for the National Airspace System (NAS)

Transportation, Department of

488119 · Support Activities for Transportation Posted Jun 01, 2026
SolicitationNONE
Closes tomorrow

NV FLAP NYE 10(1) Bob Ruud Mem Hwy & Bell Vista Ave

Transportation, Department of

237310 · Highway, Street, and Bridge Constructi… Nevada Posted Jun 01, 2026
SolicitationHUBZone
Closes in 14 days

Project TN ERFO FS CHRKE804 2020-2(1) - Cherokee National Forest

Transportation, Department of

237310 · Highway, Street, and Bridge Constructi… Tennessee Posted Jun 01, 2026

Common DOT NAICS codes

NAICS 541330NAICS 237310NAICS 236220NAICS 541715NAICS 541611NAICS 541512NAICS 561210NAICS 237990

About contracting with the DOT

The Department of Transportation's direct contracting footprint is modest compared to DoD or HHS, but its influence on procurement is enormous because most federal transportation money flows out to state and local governments as formula and discretionary grants — and those funds get spent through state DOT procurement. The Federal Highway Administration alone passes more than $50 billion annually to state DOTs, who then award construction and engineering contracts under federal-aid rules. For contractors, this means the bulk of "federal" highway work shows up on state-DOT procurement portals rather than on SAM.gov, even though the funding source is federal. The Federal Aviation Administration is the largest direct DOT contracting office, with sustained procurement for air-traffic-control systems, the NextGen modernisation programme, radar and surveillance equipment, simulators, and engineering support services. The Volpe National Transportation Systems Center in Cambridge, MA, is DOT's in-house R&D centre and contracts for transportation research, modelling, and analysis. The Federal Transit Administration administers grants to transit agencies, with limited direct contracting; the Federal Railroad Administration similarly works largely through grant programmes and Amtrak. NHTSA buys for automotive safety research, crash testing, and standards development. The Maritime Administration runs Title XI loan guarantees, the National Maritime Strategy, and contracts for the Ready Reserve Force ship maintenance. DOT runs an active DBE (Disadvantaged Business Enterprise) programme — though DBE is principally enforced as a flow-down requirement on federal-aid contracts let by state DOTs and transit agencies, not on direct DOT awards. Vendors targeting DOT directly should align with 541330 (engineering), 541715 (R&D), and the IT and consulting codes. Vendors targeting the broader transportation market should also register with state DOT procurement portals — see our state contracts pages for individual state coverage. Federal contract search and SAM.gov alternative tools help filter DOT direct awards.

Read the full DOT contracting guide →