Department of Transportation NAICS 561621 and PSC 6350 contractors

Security Systems Services (except Locksmiths). MISCELLANEOUS ALARM, SIGNAL, AND SECURITY DETECTION SYSTEMS. 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 561621 · PSC 6350

Last updated: April 6, 2026

Visible recipients

Mapped obligations

$985,668,533

State overlap

Top recipients

Visible recipients in the Department of Transportation overlap of NAICS 561621 and PSC 6350

M. C. Dean, Inc.

Tysons, VA

M. C. Dean, Inc. is a federal category business profile based in Tysons, VA. The current public data layer shows $366,425,260 in visible federal obligations across 1,299 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 J058.

$985,668,533