NAICS 541990 and PSC B546 contractors in Virginia

All Other Professional, Scientific, and Technical Services. SPECIAL STUDIES/ANALYSIS- SECURITY (PHYSICAL/PERSONAL). Use this deeper state cross-code page to see which visible contractors sit in the overlap between these two lanes inside Virginia.

Virginia · NAICS 541990 · PSC B546

Last updated: April 7, 2026

Visible recipients

Mapped obligations

$38,660,034

Buyer overlap

Top recipients

Visible recipients in the Virginia overlap of NAICS 541990 and PSC B546

Knowesis, Inc.

Fairfax, VA

Knowesis, Inc. is a federal 8a program participant profile based in Fairfax, VA. The current public data layer shows $8,389,178 in visible federal obligations across 39 awards or transactions. Department of Defense 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 R699.

$38,660,034