2022 NAICS national industry in sector 92 Public Administration
928110 National Security
NAICS 928110 is the US industry code for national security. It covers government establishments of the Armed Forces, including the National Guard, primarily engaged in national security and related activities.
- Code
- 928110 (2022 NAICS)
- Title
- National Security
- Part of
- National Security and International Affairs
- SBA small business limit
- No SBA size standard is listed for this code.
- Closest UK SIC
- 84210, 84220, 84230 (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 government establishments of the Armed Forces, including the National Guard, primarily engaged in national security and related activities.
Examples Census gives
- Air Force
- Military police
- Army
- Military training schools (except military service academies)
- Marine Corps
- National Guard
- Military courts
- Navy
When to use a different code
Census classifies these close-sounding activities somewhere else. Businesses mainly engaged in:
- Operating college-level military service academies are classified in Industry 611310, Colleges, Universities, and Professional Schools.
- Regulating and administering water transportation, such as the U.S. Coast Guard and the Merchant Marine are classified in Industry 926120, Regulation and Administration of Transportation Programs.
Activities listed under 928110
The Census index assigns these 13 activities to this code. If your business matches one, this is your code.
- Air Force
- Air traffic control, military
- Armed forces
- Army
- Courts, military
- Marine Corps
- Military bases and camps
- Military police
- Military reserve armories and bases
- Military training schools (except academies)
- National Guard
- Navy
- Space Force
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: 8421, 8422, 8423), 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.