PSC NAICS rankings
Top NAICS paths for PSC AC21.
Use this ranking when the research starts with PSC AC21 and you want the strongest industry-code pages attached to NATIONAL DEFENSE R&D SERVICES; ATOMIC ENERGY DEFENSE ACTIVITIES; 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 541712
4 visible recipients · Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology)
NAICS 541710
3 visible recipients · Research and Development in the Physical, Engineering, and Life Sciences
NAICS 541990
1 visible recipients · All Other Professional, Scientific, and Technical Services
NAICS 541380
1 visible recipients · Testing Laboratories and Services
NAICS 541330
2 visible recipients · Engineering Services
NAICS 927110
1 visible recipients · Space Research and Technology
NAICS 541711
1 visible recipients · Research and Development in Biotechnology
NAICS 541715
1 visible recipients · Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
NAICS 334516
1 visible recipients · Analytical Laboratory Instrument Manufacturing
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