PSC NAICS rankings
Top NAICS paths for PSC AD21.
Use this ranking when the research starts with PSC AD21 and you want the strongest industry-code pages attached to R&D- DEFENSE OTHER: SERVICES (BASIC RESEARCH) 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 561612
1 visible recipients · Security Guards and Patrol Services
NAICS 541511
1 visible recipients · Custom Computer Programming Services
NAICS 561720
1 visible recipients · Janitorial Services
NAICS 541512
1 visible recipients · Computer Systems Design Services
NAICS 541330
1 visible recipients · Engineering Services
NAICS 541611
2 visible recipients · Administrative Management and General Management Consulting Services
NAICS 561110
1 visible recipients · Office Administrative Services
NAICS 541712
2 visible recipients · Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology)
NAICS 722310
1 visible recipients · Food Service Contractors
NAICS 541710
1 visible recipients · Research and Development in the Physical, Engineering, and Life Sciences
NAICS 811412
1 visible recipients · Appliance Repair and Maintenance
NAICS 238220
1 visible recipients · Plumbing, Heating, and Air-Conditioning Contractors
NAICS 238210
1 visible recipients · Electrical Contractors and Other Wiring Installation Contractors
NAICS 336611
1 visible recipients · Ship Building and Repairing
NAICS 541350
1 visible recipients · Building Inspection Services
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