Department of Homeland Security NAICS 541620 and PSC Z1NA contractors

Environmental Consulting Services. MAINTENANCE OF FUEL SUPPLY FACILITIES. 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 541620 · PSC Z1NA

Last updated: April 7, 2026

Visible recipients

Mapped obligations

$1,001,898,668

State overlap

Top recipients

Visible recipients in the Department of Homeland Security overlap of NAICS 541620 and PSC Z1NA

Weston Solutions INC

West Chester, PA

Weston Solutions INC is a federal category business profile based in West Chester, PA. The current public data layer shows $169,108,559 in visible federal obligations across 378 awards or transactions. Department of Defense appears as the strongest visible awarding agency. Top industry concentration is in NAICS 236220 (Commercial and Institutional Building Construction). The profile also shows meaningful product and service activity in PSC Z2JZ.

$1,001,898,668