NAICS 621340:
Offices of Physical, Occupational and Speech Therapists, and Audiologists

This industry comprises establishments of independent health practitioners primarily engaged in one of the following: (1) providing physical therapy services to patients who have impairments, functional limitations, disabilities, or changes in physical functions and health status resulting from injury, disease or other causes, or who require prevention, wellness or fitness services; (2) planning and administering educational, recreational, and social activities designed to help patients or individuals with disabilities regain physical or mental functioning or adapt to their disabilities; and (3) diagnosing and treating speech, language, or hearing problems. These practitioners operate private or group practices in their own offices (e.g., centers, clinics) or in the facilities of others, such as hospitals or HMO medical centers.

Audiologists' officesRecreational (e.g., art, dance, music) therapists' officesIndustrial therapists' offices+3 examples
Speech pathologists' officesOccupational therapists' officesPhysical therapists' offices

Matching SIC code: 8049 Offices and Clinics of Health Practitioners, Not Elsewhere Classified

Largest companies with NAICS 621340

Updated Nov 9, 2026
RankCompanyHeadquartersEmployees
1
Select Rehabilitationselectrehab.com
Glenview, US7.3K
2
Athleticoathletico.com
Oak Brook, US6.8K
3
Confluent Healthconfluenthealth.com
Louisville, US6.2K
4
ATI Physical Therapyatipt.com
Downers Grove, US5.4K
5
The Stepping Stones Group, LLCthesteppingstonesgroup.com
Boston, US5K
6
U.S. Physical Therapy, Inc.usph.com
Houston, US4.3K
7
Ivy Healthivyrehab.com
White Plains, US4.1K
8
PT Solutions Physical Therapyjoinptsolutions.com
Atlanta, US3.3K
9
HealthPro Heritagehealthpro-heritage.com
Cockeysville, US3.1K
10
FOX Rehabilitationfoxrehab.org
Cherry Hill Township, US3.1K

Not this code?

Similar activities the Census classifies elsewhere.

Questions about NAICS 621340

Which businesses use NAICS 621340?
Audiologists' offices, industrial therapists' offices and speech pathologists' offices, and similar businesses in the Health Care and Social Assistance sector. This industry comprises establishments of independent health practitioners primarily engaged in one of the following: (1) providing physical therapy services to patients who have impairments, functional limitations, disabilities, or changes in physical functions and health status resulting from injury, disease or other causes, or who require prevention, wellness or fitness services; (2) planning and administering educational, recreational, and social activities designed to help patients or individuals with disabilities regain physical or mental functioning or adapt to their disabilities; and (3) diagnosing and treating speech, language, or hearing problems.
What SIC code matches NAICS 621340?
SIC 8049, Offices and Clinics of Health Practitioners, Not Elsewhere Classified, from the US Census Bureau's concordance between the two systems.
How many companies have NAICS 621340?
26,205 companies with a website carry NAICS 621340 as their primary code in Crustdata's data, worldwide.
Find any company's NAICS codeType a company name or website and get its codes with their titles.
Look up a company
Every company with NAICS 621340Search all 26,205 of them, filter by country, size and location, and export them. Start with a free Crustdata account.
Sign up free

Code titles, definitions, examples and SIC matches: NAICS 2022 and the Census concordances, US Census Bureau. Company counts and lists: Crustdata, companies with a website, each by its primary code, updated weekly. Employee counts are estimates.