NAICS Code 221320 - Sewage Treatment Facilities

Government Level - NAICS 6-Digit

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Total Verified Companies: 386
Contact Emails: 6,938
Company Websites: 288
Phone Numbers: 338
Business Addresses: 386
Companies with Email: 268
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Last Updated: 05/26/2025

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Looking for more companies? See NAICS 22132 - Sewage Treatment Facilities - 386 companies, 6,938 emails.

NAICS Code 221320 Description

This industry comprises establishments primarily engaged in operating sewer systems or sewage treatment facilities that collect, treat, and dispose of waste. Source: Census.gov

NAICS Code 221320 - Sewage Treatment Facilities is a final level code of the “Utilities” Sector. There are 386 companies verified as active in this industry in the USA with an estimated employment of 7,050 people.

Industry Sector

Utilities

Annual Payroll

$368,509,000

Total Revenue

$1,761,563,000

SBA Size Standard

Annual Revenue Limit of $22,000,000

Parent Category - 5-digit Level (less specific)

Industry Examples of NAICS 221320

Common types of examples within NAICS Code 221320 - Sewage Treatment Facilities are:

  • Collection, treatment, and disposal of waste through a sewer system
  • Sewage disposal plants
  • Sewage treatment plants or facilities
  • Sewer systems
  • Waste collection, treatment, and disposal through a sewer system

Industry Image

Example photo for industry NAICS 221320 - Sewage Treatment Facilities . This image represents an activity or product found in this industry.

Cross-References

For some business types, there may be a similar industry to NAICS Code 221320 - Sewage Treatment Facilities that is a better classification match. Operating waste treatment or disposal facilities (except sewer systems or sewage treatment facilities)--are classified in NAICS Code 56221 - Waste Treatment and Disposal; Operating water treatment plants and/or operating water supply systems--are classified in NAICS Code 221310 - Water Supply and Irrigation Systems; Pumping (i.e., cleaning) cesspools, portable toilets, and septic tanks or renting portable toilets--are classified in U.S. NAICS Code 562991 - Septic Tank and Related Services; and Cleaning and rodding sewers and catch basins--are classified in U.S. NAICS Code 562998 - All Other Miscellaneous Waste Management Services.

Companies

SICCODE.com compiles comprehensive business data and executive contact leads for businesses within NAICS Code 221320 - Sewage Treatment Facilities . Some of the leading and most notable companies are listed below. To order a list of companies within NAICS Code 221320 - Sewage Treatment Facilities for marketing (postal mailing, telemarketing, emailing) or analytics-use, click on the link below to “Buy Business List”. Our data analysts are standing by to assist in your list setup and target marketing.

Industry Executives

Would you like to email executives in NAICS Code 221320 - Sewage Treatment Facilities ? Below are some of the common job titles available to be targeted.

  • Business Development
  • Chairman
  • C-Level
  • Director
  • Engineering
  • Executive Director
  • Facilities
  • Finance
  • Human Resource
  • IT
  • Manager
  • Marketing
  • Manufacturing
  • Operations
  • Owner
  • Partner
  • President
  • Principal
  • Purchasing
  • Sales
  • Vice President

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Executive Email List

Questions & Answers

  • What is the SBA NAICS 221320 revenue limit?

    Businesses with an annual revenue under $22,000,000 are considered small businesses by SBA.

  • How many active businesses operate in NAICS Code 221320?

    There are 386 verified business locations operating primarily in this industry.

  • What was the total revenue for NAICS Code 221320?

    In 2017 the total revenue for Sewage Treatment Facilities was $1,761,563,000

  • What was the annual payroll for NAICS Code 221320?

    In 2017 the annual payroll for Sewage Treatment Facilities was $368,509,000

  • How many people work in NAICS Code 221320?

    The number of reported paid employees is 7,050.