What's the NAICS and SIC code for a concrete contractor?
For a concrete contractor, use NAICS 238110 (Poured Concrete Foundation and Structure Contractors) in the US and SIC 43999 (Other specialised construction activities n.e.c.) in the UK.
United States, NAICS 2022
238110 Poured Concrete Foundation and Structure Contractors
Poured Concrete Foundation and Structure Contractors.
SBA small business limit: $19 million average annual receipts.
United Kingdom, SIC 2007
43999 Other specialised construction activities n.e.c.
Other specialised construction activities n.e.c., where ONS indexes concrete work.
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 238990 | All Other Specialty Trade Contractors | you mainly lay driveways, paving or patios |
Good to know
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.