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Department of Transportation NAICS 541990 and PSC R425 contractors

All Other Professional, Scientific, and Technical Services. SUPPORT- PROFESSIONAL: ENGINEERING/TECHNICAL. Use this deeper buyer cross-code page to see which visible contractors sit in the overlap between these two lanes under Department of Transportation.

Department of Transportation · NAICS 541990 · PSC R425
Last updated: April 8, 2026

Visible recipients

12

Mapped obligations

$22,534,681,112

State overlap

4

Top recipients

Visible recipients in the Department of Transportation overlap of NAICS 541990 and PSC R425

The Mitre Corporation

Mc Lean, VA

The Mitre Corporation is a federal category business profile based in Mc Lean, VA. The current public data layer shows $995,825,139 in visible federal obligations across 880 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541990 (All Other Professional, Scientific, and Technical Services). The profile also shows meaningful product and service activity in PSC R425.

$17,081,183,080

Applied Research Associates, Inc.

Albuquerque, NM

Applied Research Associates, Inc. is a federal category business profile based in Albuquerque, NM. The current public data layer shows $327,354,498 in visible federal obligations across 564 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541712 (Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology)). The profile also shows meaningful product and service activity in PSC R425.

$1,069,703,475

Noblis, Inc.

Reston, VA

Noblis, Inc. is a federal category business profile based in Reston, VA. The current public data layer shows $263,857,681 in visible federal obligations across 372 awards or transactions. Department of Transportation appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541330 (Engineering Services). The profile also shows meaningful product and service activity in PSC R425.

$1,201,445,576

Axient LLC

Arlington, VA

Axient LLC is a federal category business profile based in Arlington, VA. The current public data layer shows $90,520,563 in visible federal obligations across 83 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541330 (Engineering Services). The profile also shows meaningful product and service activity in PSC R425.

$1,293,253,336

Macaulay-brown, Inc.

Dayton, OH

Macaulay-brown, Inc. is a federal category business profile based in Dayton, OH. The current public data layer shows $86,765,347 in visible federal obligations across 5 awards or transactions. General Services Administration appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541511 (Custom Computer Programming Services). The profile also shows meaningful product and service activity in PSC 7050.

$3,926,425

Ensco INC

Vienna, VA

Ensco INC is a federal category business profile based in Vienna, VA. The current public data layer shows $71,897,543 in visible federal obligations across 124 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541712 (Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology)). The profile also shows meaningful product and service activity in PSC AR16.

$334,192,529

The Bizzell Group LLC

Hyattsville, MD

The Bizzell Group LLC is a federal 8a program participant profile based in Hyattsville, MD. The current public data layer shows $58,681,920 in visible federal obligations across 126 awards or transactions. Department of Health and Human Services 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 U006.

$84,089,625

Inalab Consulting, Inc.

Fairfax, VA

Inalab Consulting, Inc. is a federal 8a program participant profile based in Fairfax, VA. The current public data layer shows $26,223,753 in visible federal obligations across 136 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541330 (Engineering Services). The profile also shows meaningful product and service activity in PSC R499.

$53,077,790

Bowhead Mission Solutions, LLC

Springfield, VA

Bowhead Mission Solutions, LLC is a federal 8a program participant profile based in Springfield, VA. The current public data layer shows $21,299,320 in visible federal obligations across 50 awards or transactions. General Services Administration appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541330 (Engineering Services). The profile also shows meaningful product and service activity in PSC R425.

$428,208,468

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
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