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General Services Administration NAICS 541330 and PSC R421 contractors

Engineering Services. TECHNICAL ASSISTANCE. Use this deeper buyer cross-code page to see which visible contractors sit in the overlap between these two lanes under General Services Administration.

General Services Administration · NAICS 541330 · PSC R421
Last updated: April 8, 2026

Visible recipients

3

Mapped obligations

$420,332,677

State overlap

2

Top recipients

Visible recipients in the General Services Administration overlap of NAICS 541330 and PSC R421

Caci Intelligence Solutions, LLC

Herndon, VA

Caci Intelligence Solutions, LLC is a federal category business profile based in Herndon, VA. The current public data layer shows $622,902,744 in visible federal obligations across 5 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 R423.

$177,756,936

The Cadmus Group LLC

Arlington, VA

The Cadmus Group LLC is a federal category business profile based in Arlington, VA. The current public data layer shows $26,069,830 in visible federal obligations across 289 awards or transactions. Environmental Protection Agency appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541620 (Environmental Consulting Services). The profile also shows meaningful product and service activity in PSC R499.

$126,081,750

Peraton Aerospace & Defense Inc.

Huntsville, AL

Peraton Aerospace & Defense Inc. is a federal category business profile based in Huntsville, AL. The current public data layer shows $1,359,998 in visible federal obligations across 34 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541710 (Research and Development in the Physical, Engineering, and Life Sciences). The profile also shows meaningful product and service activity in PSC R425.

$116,493,991