NAICS PSC rankings
Top PSC paths for NAICS 621511.
Use this ranking when the research starts with NAICS 621511 and you want the strongest service-code pages attached to Medical Laboratories before moving into deeper intersections.
NAICS PSC rankings
Top PSC paths
These NAICS-scoped rankings are useful when you want a cleaner entry point than the full code page and a faster pivot into geography or service-lane research.
PSC Q403
1 visible recipients · MEDICAL- EVALUATION/SCREENING
PSC 6640
2 visible recipients · LABORATORY EQUIPMENT AND SUPPLIES
PSC 6515
2 visible recipients · MEDICAL AND SURGICAL INSTRUMENTS, EQUIPMENT, AND SUPPLIES
PSC Q201
1 visible recipients · MEDICAL- MANAGED HEALTHCARE
PSC 6630
2 visible recipients · CHEMICAL ANALYSIS INSTRUMENTS
PSC 6550
2 visible recipients · IN VITRO DIAGNOSTIC SUBSTANCES, REAGENTS, TEST KITS AND SETS
PSC Q401
1 visible recipients · MEDICAL- NURSING
PSC Q999
1 visible recipients · MEDICAL- OTHER
PSC AN13
1 visible recipients · HEALTH R&D SERVICES; HEALTH CARE SERVICES; EXPERIMENTAL DEVELOPMENT
PSC Q301
1 visible recipients · REFERENCE LABORATORY TESTING
PSC H266
1 visible recipients · EQUIPMENT AND MATERIALS TESTING- INSTRUMENTS AND LABORATORY EQUIPMENT
PSC F103
1 visible recipients · ENVIRONMENTAL SYSTEMS PROTECTION- WATER QUALITY SUPPORT
PSC B533
1 visible recipients · SPECIAL STUDIES/ANALYSIS- WATER QUALITY
PSC B504
1 visible recipients · SPECIAL STUDIES/ANALYSIS- CHEMICAL/BIOLOGICAL
PSC R408
1 visible recipients · SUPPORT- PROFESSIONAL: PROGRAM MANAGEMENT/SUPPORT
PSC B503
1 visible recipients · SPECIAL STUDIES/ANALYSIS- ARCHEOLOGICAL/PALEONTOLOGICAL
Other NAICS ranking views
Move around NAICS 621511
Use sibling ranking layers when you want to stay inside the same industry lane but switch between geography and service-code analysis.
Directory graph
Move into full directory hubs
Use the NAICS-specific ranking page as a shortcut, then move back into the broader NAICS, state, PSC, and top-list hubs when you want wider browse coverage.