Department of Homeland Security NAICS 333318 and PSC D399 contractors

Other Commercial and Service Industry Machinery Manufacturing. IT AND TELECOM- OTHER IT AND TELECOMMUNICATIONS. Use this deeper buyer cross-code page to see which visible contractors sit in the overlap between these two lanes under Department of Homeland Security.

Department of Homeland Security · NAICS 333318 · PSC D399

Last updated: April 2, 2026

Visible recipients

Mapped obligations

$885,338,574

State overlap

Top recipients

Visible recipients in the Department of Homeland Security overlap of NAICS 333318 and PSC D399

General Dynamics One Source LLC

Falls Church, VA

General Dynamics One Source LLC is a federal category business profile based in Falls Church, VA. The current public data layer shows $91,059,554 in visible federal obligations across 162 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541512 (Computer Systems Design Services). The profile also shows meaningful product and service activity in PSC D399.

$885,338,574