Department of Defense NAICS 541990 and PSC R429 contractors

All Other Professional, Scientific, and Technical Services. SUPPORT- PROFESSIONAL: EMERGENCY RESPONSE/DISASTER PLANNING/PREPAREDNESS SUPPORT. Use this deeper buyer cross-code page to see which visible contractors sit in the overlap between these two lanes under Department of Defense.

Department of Defense · NAICS 541990 · PSC R429

Last updated: April 8, 2026

Visible recipients

Mapped obligations

$82,126,581

State overlap

Top recipients

Visible recipients in the Department of Defense overlap of NAICS 541990 and PSC R429

Cherokee Nation System Solutions LLC

Tulsa, OK

Cherokee Nation System Solutions LLC is a federal 8a program participant profile based in Tulsa, OK. The current public data layer shows $52,028,893 in visible federal obligations across 480 awards or transactions. Department of State appears as the strongest visible awarding agency. Top industry concentration is in NAICS 561210 (Facilities Support Services). The profile also shows meaningful product and service activity in PSC R408.

$82,126,581