2022 NAICS national industry in sector 81 Other Services (except Public Administration)
812191 Diet and Weight Reducing Centers
NAICS 812191 is the US industry code for diet and weight reducing centers. This U.S.
- Code
- 812191 (2022 NAICS)
- Title
- Diet and Weight Reducing Centers
- Part of
- Other Personal Care Services
- SBA small business limit
- Average annual receipts up to $27.5 million
- Closest UK SIC
- 96090 (details)
Changes coming. The NAICS 2027 revision applies to data from 1 January 2027, and SBA proposed new size standards on 20 August 2026. The values on this page are the ones in force today; we update this page when the official files change.
Official definition
This U.S. industry comprises establishments primarily engaged in providing non-medical services to assist clients in attaining or maintaining a desired weight. The sale of weight reduction products, such as food supplements, may be an integral component of the program. These services typically include individual or group counseling, menu and exercise planning, and weight and body measurement monitoring.
When to use a different code
Census classifies these close-sounding activities somewhere else. Businesses mainly engaged in:
- Operating physical fitness facilities are classified in Industry 713940, Fitness and Recreational Sports Centers.
- Providing personal fitness training services without operating a fitness facility are classified in Industry 812990, All Other Personal Services.
- Operating health resorts and spas that provide lodging are classified in Industry 721110, Hotels (except Casino Hotels) and Motels.
- Providing medical or surgical weight reduction are classified in Sector 62, Health Care and Social Assistance.
Activities listed under 812191
The Census index assigns these 4 activities to this code. If your business matches one, this is your code.
- Diet centers, non-medical
- Diet workshops
- Weight loss centers, non-medical
- Weight reducing centers, non-medical
SBA size standard for 812191
To count as a small business for SBA loans and federal contracts under NAICS 812191, your business (including affiliates) must not exceed $27.5 million in average annual receipts. Check your business.
Source: SBA table of size standards, effective March 17, 2023.
Closest UK SIC 2007 codes
There is no official one-to-one link between NAICS and UK SIC. These codes share the same international class (ISIC Rev. 4: 9609), so treat them as a starting point and check the definition.
Built from Census concordances 2022→2017 NAICS and 2017 NAICS→ISIC Rev. 4.
Similar codes to compare
Data last changed November 14, 2026. How this page is built.