Agency + NAICS + PSC page

Department of Homeland Security NAICS 561611 and PSC B546 contractors

Investigation and Personal Background Check Services. SPECIAL STUDIES/ANALYSIS- SECURITY (PHYSICAL/PERSONAL). 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 561611 · PSC B546
Last updated: April 8, 2026

Visible recipients

1

Mapped obligations

$3,726,699,270

State overlap

1

Top recipients

Visible recipients in the Department of Homeland Security overlap of NAICS 561611 and PSC B546