2022 NAICS industry in sector 31-33 Manufacturing
33391 Pump and Compressor Manufacturing
NAICS 33391 is the US industry code for pump and compressor manufacturing. It covers establishments primarily engaged in manufacturing pumps and compressors, such as general purpose air and gas compressors, nonagricultural spraying and dusting equipment, general purpose pumps and pumping equipment (except fluid power pumps and motors), and measuring and dispensing pumps.
Official definition
This industry comprises establishments primarily engaged in manufacturing pumps and compressors, such as general purpose air and gas compressors, nonagricultural spraying and dusting equipment, general purpose pumps and pumping equipment (except fluid power pumps and motors), and measuring and dispensing pumps.
When to use a different code
Census classifies these close-sounding activities somewhere else. Businesses mainly engaged in:
- Manufacturing fluid power pumps and motors and handheld pneumatic spray guns are classified in Industry 33399, All Other General Purpose Machinery Manufacturing.
- Manufacturing agricultural spraying and dusting equipment are classified in Industry 33311, Agricultural Implement Manufacturing.
- Manufacturing laboratory vacuum pumps are classified in Industry 33911, Medical Equipment and Supplies Manufacturing.
- Manufacturing pumps and air-conditioning systems and compressors for motor vehicles are classified in Industry Group 3363, Motor Vehicle Parts Manufacturing.
- Manufacturing air-conditioning systems and compressors (except motor vehicle) are classified in Industry 33341, Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing.
Codes in 33391
Data last changed November 14, 2026. How this page is built.