2022 NAICS national industry in sector 61 Educational Services
611630 Language Schools
NAICS 611630 is the US industry code for language schools. It covers establishments primarily engaged in offering foreign language instruction (including sign language).
- Code
- 611630 (2022 NAICS)
- Title
- Language Schools
- Part of
- Other Schools and Instruction
- SBA small business limit
- Average annual receipts up to $20.5 million
- Closest UK SIC
- 85410, 85421, 85422 (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 industry comprises establishments primarily engaged in offering foreign language instruction (including sign language). These establishments are designed to offer language instruction ranging from conversational skills for personal enrichment to intensive training courses for career or educational opportunities.
When to use a different code
Census classifies these close-sounding activities somewhere else. Businesses mainly engaged in:
- Offering academic courses that may also offer language instruction are classified according to type of school.
- Providing translation and interpretation services are classified in Industry 541930, Translation and Interpretation Services.
Businesses that use this code
Activities listed under 611630
The Census index assigns these 6 activities to this code. If your business matches one, this is your code.
- Foreign language schools
- Language schools
- Schools, language
- Second language instruction
- Sign language instruction
- Sign language schools
SBA size standard for 611630
To count as a small business for SBA loans and federal contracts under NAICS 611630, your business (including affiliates) must not exceed $20.5 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: 8549), so treat them as a starting point and check the definition.
- 85410Post-secondary non-tertiary educationUK SIC
- 85421First-degree level higher educationUK SIC
- 85422Post-graduate level higher educationUK SIC
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.