NAICS PSC rankings
Top PSC paths for NAICS 221310.
Use this ranking when the research starts with NAICS 221310 and you want the strongest service-code pages attached to Water Supply and Irrigation Systems 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 Y199
1 visible recipients · CONSTRUCT/MISC BLDGS
PSC Y245
1 visible recipients · CONSTRUCT/WATER SUPPLY
PSC Y111
1 visible recipients · CONSTRUCTION OF OFFICE BUILDINGS
PSC Y119
1 visible recipients · CONSTRUCT/OTHER ADMIN & SVCS BLDGS
PSC Y1EB
1 visible recipients · CONSTRUCTION OF MAINTENANCE BUILDINGS
PSC Y1FZ
1 visible recipients · CONSTRUCTION OF OTHER RESIDENTIAL BUILDINGS
PSC S201
1 visible recipients · HOUSEKEEPING- CUSTODIAL JANITORIAL
PSC C211
2 visible recipients · ARCHITECT AND ENGINEERING- GENERAL: LANDSCAPING, INTERIOR LAYOUT, AND DESIGNING
PSC C219
3 visible recipients · ARCHITECT AND ENGINEERING- GENERAL: OTHER
PSC S205
2 visible recipients · HOUSEKEEPING- TRASH/GARBAGE COLLECTION
PSC S114
7 visible recipients · UTILITIES- WATER
PSC F999
1 visible recipients · OTHER ENVIRONMENTAL SERVICES
PSC Z2FA
1 visible recipients · REPAIR OR ALTERATION OF FAMILY HOUSING FACILITIES
PSC Y1NE
1 visible recipients · CONSTRUCTION OF WATER SUPPLY FACILITIES
PSC B503
2 visible recipients · SPECIAL STUDIES/ANALYSIS- ARCHEOLOGICAL/PALEONTOLOGICAL
PSC R418
4 visible recipients · SUPPORT- PROFESSIONAL: LEGAL
PSC U009
1 visible recipients · EDUCATION/TRAINING- GENERAL
PSC B510
1 visible recipients · SPECIAL STUDIES/ANALYSIS- ENVIRONMENTAL ASSESSMENTS
PSC X111
3 visible recipients · LEASE/RENTAL OF OFFICE BUILDINGS
PSC 9130
1 visible recipients · LIQUID PROPELLANTS AND FUELS, PETROLEUM BASE
PSC B537
1 visible recipients · SPECIAL STUDIES/ANALYSIS- MEDICAL/HEALTH
PSC F018
2 visible recipients · NATURAL RESOURCES/CONSERVATION- OTHER FOREST/RANGE IMPROVEMENTS (NON-CONSTRUCTION)
PSC L099
1 visible recipients · TECHNICAL REPRESENTATIVE- MISCELLANEOUS
PSC F003
1 visible recipients · NATURAL RESOURCES/CONSERVATION- FOREST-RANGE FIRE SUPPRESSION/PRESUPPRESSION
PSC R499
2 visible recipients · SUPPORT- PROFESSIONAL: OTHER
PSC S119
4 visible recipients · UTILITIES- OTHER
PSC F099
1 visible recipients · NATURAL RESOURCES/CONSERVATION- OTHER
PSC S209
1 visible recipients · HOUSEKEEPING- LAUNDRY/DRYCLEANING
PSC DA01
1 visible recipients · IT AND TELECOM - BUSINESS APPLICATION/APPLICATION DEVELOPMENT SUPPORT SERVICES (LABOR)
PSC F103
1 visible recipients · ENVIRONMENTAL SYSTEMS PROTECTION- WATER QUALITY SUPPORT
PSC D399
1 visible recipients · IT AND TELECOM- OTHER IT AND TELECOMMUNICATIONS
PSC 9915
1 visible recipients · COLLECTORS' AND/OR HISTORICAL ITEMS
PSC R405
1 visible recipients · SUPPORT- PROFESSIONAL: OPERATIONS RESEARCH/QUANTITATIVE ANALYSIS
PSC Q999
2 visible recipients · MEDICAL- OTHER
PSC R799
1 visible recipients · SUPPORT- MANAGEMENT: OTHER
PSC T009
1 visible recipients · PHOTO/MAP/PRINT/PUBLICATION- AERIAL PHOTOGRAPHIC
PSC 6810
1 visible recipients · CHEMICALS
Other NAICS ranking views
Move around NAICS 221310
Use sibling ranking layers when you want to stay inside the same industry lane but switch between geography and service-code analysis.
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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.