Request for a list of all SIA approved contractors
Published 30 March 2026
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Request
Please could you provide a current list of all companies approved under the SIA’s Approved Contractor Scheme (ACS), including:
- company name
- ACS number (if applicable)
- approval sectors
- head office address and region
Response
We confirm that the SIA holds this information.
The information you have requested is exempt under section 21 of the Freedom of Information Act 2000, as the information is readily accessible within the public domain.
For ease of reference, you may find a list of approved contractors on our register of approved contractors which contains the information requested.
[Ref: FOI 0581]