NAICS 541990 and PSC R420 contractors

All Other Professional, Scientific, and Technical Services. SUPPORT- PROFESSIONAL: CERTIFICATIONS AND ACCREDITATIONS (OTHER THAN EDUC OR INFO TECH C&A). Use this cross-code page to see which visible federal contractors sit in the overlap between these two public category lanes.

NAICS 541990 + PSC R420

Last updated: April 6, 2026

Visible recipients

Mapped obligations

$9,286,835

State overlap

Top recipients

Visible recipients in the NAICS 541990 and PSC R420 overlap

Old Harbor Solutions LLC

Anchorage, AK

Old Harbor Solutions LLC is a federal 8a program participant profile based in Anchorage, AK. The current public data layer shows $10,910,344 in visible federal obligations across 66 awards or transactions. Department of Defense 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 R499.

$9,286,835