NAICS 621330:
Offices of Mental Health Practitioners (except Physicians)
This industry comprises establishments of independent mental health practitioners (except physicians) primarily engaged in (1) the diagnosis and treatment of mental, emotional, and behavioral disorders and/or (2) the diagnosis and treatment of individual or group social dysfunction brought about by such causes as mental illness, alcohol and substance abuse, physical and emotional trauma, or stress. 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.
Matching SIC code: 8049 Offices and Clinics of Health Practitioners, Not Elsewhere Classified
Where it sits
- 62Health Care and Social AssistanceSector
- 621Ambulatory Health Care ServicesSubsector
- 6213Offices of Other Health PractitionersIndustry group
- 62133Offices of Mental Health Practitioners (except Physicians)NAICS industry
- 621330Offices of Mental Health Practitioners (except Physicians)National industry
Largest companies with NAICS 621330
Updated Nov 9, 2026| Rank | Company | Headquarters | Employees |
|---|---|---|---|
| 1 |  BetterHelpbetterhelp.com | San Jose, US | 4.2K |
| 2 |  Autism Learning Partnersautismlearningpartners.com | Monrovia, US | 2.2K |
| 3 |  Proud Moments ABAproudmomentsaba.com | New York, US | 2K |
| 4 |  Thriveworksthriveworks.com | Lynchburg, US | 1.9K |
| 5 |  Butterfly Effectsbutterflyeffects.com | Deerfield Beach, US | 1.6K |
| 6 |  Almahelloalma.com | New York, US | 1.4K |
| 7 |  ComPsychcompsych.com | Chicago, US | 1.2K |
| 8 |  Kyokyocare.com | Daly City, US | 1.2K |
| 9 |  Attain ABAattainaba.com | Washington, US | 942 |
| 10 |  Intercare Therapy, Inc.intercaretherapy.com | Los Angeles, US | 802 |
Not this code?
Similar activities the Census classifies elsewhere.
- 621112Offices of Physicians, Mental Health SpecialistsEstablishments of psychiatrists, psychoanalysts, and psychotherapists having the degree of M.D. (Doctor of Medicine) or D.O. (Doctor of Osteopathic Medicine)
- 621420Outpatient Mental Health and Substance Abuse CentersOutpatient mental health and substance abuse centers
- 6241Individual and Family ServicesEstablishments primarily engaged in providing nonresidential counseling services for substance abuse, mental health, suicide intervention, and other crisis intervention social services to children and youth, the elderly, persons with disabilities, and all other individuals and families
Questions about NAICS 621330
What SIC code matches NAICS 621330?
How many companies have NAICS 621330?
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.