Department of Homeland Security NAICS 541720 and PSC R405 contractors

Research and Development in the Social Sciences and Humanities. SUPPORT- PROFESSIONAL: OPERATIONS RESEARCH/QUANTITATIVE ANALYSIS. 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 541720 · PSC R405

Last updated: April 8, 2026

Visible recipients

Mapped obligations

$101,308,569

State overlap

Top recipients

Visible recipients in the Department of Homeland Security overlap of NAICS 541720 and PSC R405

Reli Group INC

Windsor Mill, MD

Reli Group INC is a federal 8a program participant profile based in Windsor Mill, MD. The current public data layer shows $79,433,948 in visible federal obligations across 119 awards or transactions. Department of Health and Human Services 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 R408.

$101,308,569