NAICS Sector 22

Utilities NAICS Codes

14 NAICS codes in this sector (221111 to 221330)

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All Utilities NAICS Codes

NAICS Code Title SBA Size Standard
221111 Hydroelectric Power Generation 750 employees
221112 Fossil Fuel Electric Power Generation 950 employees
221113 Nuclear Electric Power Generation 1,150 employees
221114 Solar Electric Power Generation 500 employees
221115 Wind Electric Power Generation 1,150 employees
221116 Geothermal Electric Power Generation 250 employees
221117 Biomass Electric Power Generation 550 employees
221118 Other Electric Power Generation 650 employees
221121 Electric Bulk Power Transmission and Control 950 employees
221122 Electric Power Distribution 1,100 employees
221210 Natural Gas Distribution 1,150 employees
221310 Water Supply and Irrigation Systems $41M avg. receipts
221320 Sewage Treatment Facilities $35M avg. receipts
221330 Steam and Air-Conditioning Supply $30M avg. receipts

About Utilities Federal Contracting

The Utilities sector (NAICS Sector 22) encompasses 14 individual NAICS codes covering a wide range of business activities. Federal agencies contract extensively within this sector, creating opportunities for small businesses that hold the correct NAICS codes and meet the associated SBA small business size standards.

When registering in SAM.gov, selecting the appropriate NAICS codes from the Utilities sector is essential for appearing in contracting officer searches and qualifying for set-aside programs. Each code within this sector has its own SBA size standard — either revenue-based or employee-based — that determines whether your business qualifies as "small" for contracts solicited under that specific code.

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