Industry Sector

Transportation & Public Utilities

Total Companies


Est. Employment



Establishments primarily engaged in distributing water for sale for domestic, commercial, and industrial use.


SIC Code 4941 - Water Supply is a final level code of the “Transportation & Public Utilities” Division. There are 14,845 companies classified in this industry in the USA with an estimated employment of 198,088 people.

Industry Examples

Common types of examples within SIC Code 4941 - Water Supply are:

  • Water supply systems, except irrigation


For some business types, there may be a similar industry to SIC Code 4941 - Water Supply that is a better classification match. Systems distributing water primarily for irrigation service are classified in SIC Code - 4971.

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Extended SIC Code Categories for SIC 4941

For business marketing and targeting, SIC Codes have been extended to provide more specific classifications within SIC Code 4941 – Water Supply. Extended SIC Codes are being continuously updated to reflect the current business environment.

6-digit SIC

  • 494101 Water Dealers
  • 494102 Water & Sewage Companies-Utility
  • 494103 Water Supply Systems
  • 494104 Water Conservation Products & Services
  • 494105 Water Treatment Management Plant

7-digit SIC

  • 4941001 Water Supply Systems
  • 4941002 Water Dealers
  • 4941003 Water & Sewage Companies-Utility
  • 4941004 Water Conservation Products & Services
  • 4941005 Water Treatment Management Plant

8-digit SIC

  • 49410000 Water Supply