Department of Transportation NAICS 541990 and PSC R425 contractors in District of Columbia

All Other Professional, Scientific, and Technical Services. SUPPORT- PROFESSIONAL: ENGINEERING/TECHNICAL. Use this deepest state-buyer cross-code page to see which visible contractors sit in the exact overlap of buyer, geography, industry, and product-service lane.

District of Columbia · Department of Transportation

Last updated: April 8, 2026

Visible recipients

Mapped obligations

$83,050,917

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Top recipients

Visible recipients tied to Department of Transportation, District of Columbia, NAICS 541990, and PSC R425

Jefferson Consulting Group LLC

Washington, DC

Jefferson Consulting Group LLC is a federal category business profile based in Washington, DC. The current public data layer shows $19,724,067 in visible federal obligations across 103 awards or transactions. Agency for International Development appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541611 (Administrative Management and General Management Consulting Services). The profile also shows meaningful product and service activity in PSC R707.

$83,050,917