Department of Homeland Security NAICS 541512 and PSC R426 contractors

Computer Systems Design Services. SUPPORT- PROFESSIONAL: COMMUNICATIONS. 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 541512 · PSC R426

Last updated: April 7, 2026

Visible recipients

Mapped obligations

-$3,668

State overlap

Top recipients

Visible recipients in the Department of Homeland Security overlap of NAICS 541512 and PSC R426

S4 INC

Bedford, MA

S4 INC is a federal category business profile based in Bedford, MA. The current public data layer shows $2,154,162 in visible federal obligations across 5 awards or transactions. Small Business Administration appears as the strongest visible awarding agency. Top industry concentration is in NAICS 517110 (Wired Telecommunications Carriers). The profile also shows meaningful product and service activity in PSC AZ11.

-$3,668