Department of Defense NAICS 541990 and PSC AJ12 contractors

All Other Professional, Scientific, and Technical Services. GENERAL SCIENCE AND TECHNOLOGY R&D SERVICES; GENERAL SCIENCE AND TECHNOLOGY; APPLIED RESEARCH. 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 AJ12

Last updated: April 8, 2026

Visible recipients

Mapped obligations

$332,502,272

State overlap

Top recipients

Visible recipients in the Department of Defense overlap of NAICS 541990 and PSC AJ12

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.

$332,502,272