Department of Homeland Security NAICS 541211 and PSC D399 contractors

Offices of Certified Public Accountants. 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 541211 · PSC D399

Last updated: April 8, 2026

Visible recipients

Mapped obligations

$175,839,097

State overlap

Top recipients

Visible recipients in the Department of Homeland Security overlap of NAICS 541211 and PSC D399

Mantech Mgs, Inc.

Herndon, VA

Mantech Mgs, Inc. is a federal category business profile based in Herndon, VA. The current public data layer shows -$2,078,725 in visible federal obligations across 5 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 541219 (Other Accounting Services). The profile also shows meaningful product and service activity in PSC R408.

$175,839,097