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Department of Defense NAICS 541990 and PSC R414 contractors

All Other Professional, Scientific, and Technical Services. SYSTEMS ENGINEERING SERVICES. Use this deeper buyer cross-code page to see which visible contractors sit in the overlap between these two lanes under Department of Defense.

Department of Defense · NAICS 541990 · PSC R414
Last updated: April 8, 2026

Visible recipients

3

Mapped obligations

$12,627,392,086

State overlap

1

Top recipients

Visible recipients in the Department of Defense overlap of NAICS 541990 and PSC R414

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.

$11,797,168,185

Linquest Corporation

Herndon, VA

Linquest Corporation is a federal category business profile based in Herndon, VA. The current public data layer shows $317,004,468 in visible federal obligations across 249 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541715 (Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)). The profile also shows meaningful product and service activity in PSC R425.

$297,202,667

Mantech Srs Technologies, Inc.

Herndon, VA

Mantech Srs Technologies, Inc. is a federal category business profile based in Herndon, VA. The current public data layer shows $74,933,149 in visible federal obligations across 77 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.

$533,021,234