SIA Contact Number 2026 — How to Reach the Security Industry Authority
The short version: SIA Contact Number 2026 — How to Reach the Security Industry Authority — published rates, real UK playbook, SIA-licensed.
The Security Industry Authority (SIA) is the UK regulator for private security. If you need to check a CPO licence, complain about an unlicensed officer, query your own licence application or raise an SIA-licensed-related issue, here are the up-to-date 2026 SIA contact details and the right route for each query.
Main SIA Contact Number
0300 123 9298. Lines are open 09:00–17:00 Monday to Friday, closed weekends and bank holidays. Calls cost no more than a standard UK landline call.
SIA Email
Main contact: info@sia.homeoffice.gov.uk. Licence applications and online account queries are answered fastest through your online SIA account, not by email.
Postal Address
Security Industry Authority, PO Box 49768, London, WC1V 6WY.
How to Check an SIA Licence (Free, Instant)
Go to register.the-sia.org.uk and enter the licence number printed on the front of the card. The register confirms name, sector (CP, DS, SG, KH, CCTV, VI, CL), expiry and live status. Always verify before deployment.
When to Contact the SIA vs the Police
Unlicensed security operating live: SIA enforcement (use the online reporting form). Crime committed by a licensed officer: 999 first, then SIA. Disputed billing or contract issue: not an SIA matter — civil court.
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About the Author
Roy
Director, VIP Protection Services
Roy is a Director of VIP Protection Services, overseeing SIA-licensed close protection, executive protection, corporate security and residential security across the UK. He personally writes and reviews every guide, checking each against current SIA licensing rules and BS 7858:2019 screening standards before publication.
- SIA Close Protection licensed officers
- BS 7858:2019 screened (5-year vetting)
- Documented assignment planning
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