What's the NAICS and SIC code for an it consulting business?
For an it consulting business, use NAICS 541512 (Computer Systems Design Services) in the US and SIC 62020 (Information technology consultancy activities) in the UK.
United States, NAICS 2022
541512 Computer Systems Design Services
Computer Systems Design Services covers planning and designing systems that combine hardware, software and communications.
SBA small business limit: $34 million average annual receipts.
United Kingdom, SIC 2007
62020 Information technology consultancy activities
Information technology consultancy activities, including computer consultancy.
Use this code when you register with Companies House or file your confirmation statement.
When a different code fits better
These are the codes most often confused with the main answer. Pick by the activity that earns most of your revenue.
| Code | Title | Use it if |
|---|---|---|
| NAICS 541511 | Custom Computer Programming Services | you mainly write custom code for clients |
| NAICS 541513 | Computer Facilities Management Services | you mainly run clients' computer systems or data centres on site |
| NAICS 541519 | Other Computer Related Services | you mainly do other computer work such as software installation or disaster recovery |
| SIC 62012 | Business and domestic software development | you mainly build software or websites for clients |
| SIC 62090 | Other information technology service activities | you mainly do installation, repair or other IT support |
Good to know
Choose by what clients pay you for most: advice and system design, custom code, or ongoing support.
You can list more than one code. Companies House accepts up to four SIC codes, and SAM.gov lets you add several NAICS codes, with one marked as primary.
What the code affects
- SBA programs and federal contracts: your NAICS code sets the size limit you must stay under to count as small. Check your size.
- SAM.gov registration: contracting officers search by NAICS, so list every code you can deliver work under.
- Companies House: your SIC code appears on the public register and in your confirmation statement.
Related business types
Codes checked against the US Census 2022 NAICS index and the ONS UK SIC 2007 index. Information only; confirm with the agency you file with.