PSC NAICS rankings
Top NAICS paths for PSC R604.
Use this ranking when the research starts with PSC R604 and you want the strongest industry-code pages attached to SUPPORT- ADMINISTRATIVE: MAILING/DISTRIBUTION before moving into deeper intersections.
PSC NAICS rankings
Top NAICS paths
These PSC-scoped rankings are useful when you want a cleaner entry point than the full code page and a faster pivot into geography or industry-lane research.
NAICS 493120
2 visible recipients · Refrigerated Warehousing and Storage
NAICS 541512
2 visible recipients · Computer Systems Design Services
NAICS 561210
2 visible recipients · Facilities Support Services
NAICS 541330
3 visible recipients · Engineering Services
NAICS 325412
2 visible recipients · Pharmaceutical Preparation Manufacturing
NAICS 541990
1 visible recipients · All Other Professional, Scientific, and Technical Services
NAICS 561320
1 visible recipients · Temporary Help Services
NAICS 541614
1 visible recipients · Process, Physical Distribution, and Logistics Consulting Services
NAICS 561499
1 visible recipients · All Other Business Support Services
NAICS 621111
1 visible recipients · Offices of Physicians (except Mental Health Specialists)
NAICS 491110
1 visible recipients · Postal Service
NAICS 722310
1 visible recipients · Food Service Contractors
NAICS 561720
1 visible recipients · Janitorial Services
NAICS 334210
1 visible recipients · Telephone Apparatus Manufacturing
NAICS 561621
1 visible recipients · Security Systems Services (except Locksmiths)
NAICS 446110
1 visible recipients · Pharmacies and Drug Stores
NAICS 334413
1 visible recipients · Semiconductor and Related Device Manufacturing
NAICS 424210
2 visible recipients · Drugs and Druggists' Sundries Merchant Wholesalers
NAICS 541513
1 visible recipients · Computer Facilities Management Services
NAICS 541611
1 visible recipients · Administrative Management and General Management Consulting Services
NAICS 332510
1 visible recipients · Hardware Manufacturing
NAICS 561990
1 visible recipients · All Other Support Services
NAICS 334417
1 visible recipients · Electronic Connector Manufacturing
NAICS 335931
1 visible recipients · Current-Carrying Wiring Device Manufacturing
NAICS 339113
1 visible recipients · Surgical Appliance and Supplies Manufacturing
NAICS 423450
2 visible recipients · Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers
NAICS 339112
1 visible recipients · Surgical and Medical Instrument Manufacturing
Other PSC ranking views
Move around PSC R604
Use sibling ranking layers when you want to stay inside the same service lane but switch between geography and industry analysis.
Directory graph
Move into full directory hubs
Use the PSC-specific ranking page as a shortcut, then move back into the broader PSC, state, NAICS, and top-list hubs when you want wider browse coverage.