NAICS + PSC page

NAICS 621511 and PSC Q403 contractors

Medical Laboratories. MEDICAL- EVALUATION/SCREENING. Use this cross-code page to see which visible federal contractors sit in the overlap between these two public category lanes.

NAICS 621511 + PSC Q403

Last updated: April 5, 2026

Visible recipients

Mapped obligations

$4,132,284,287

State overlap

Top recipients

Visible recipients in the NAICS 621511 and PSC Q403 overlap

Loyal Source Government Services LLC

Orlando, FL

Loyal Source Government Services LLC is a federal category business profile based in Orlando, FL. The current public data layer shows $2,274,743,658 in visible federal obligations across 96 awards or transactions. Department of Veterans Affairs appears as the strongest visible awarding agency. Top industry concentration is in NAICS 621111 (Offices of Physicians (except Mental Health Specialists)). The profile also shows meaningful product and service activity in PSC Q403.

$4,132,284,287