What Is an SIA Licence and Why Does It Matter?
The Security Industry Authority (SIA) is the regulatory body responsible for licensing the private security industry in the United Kingdom. Any individual working as a security guard, door supervisor, CCTV operator, close protection officer, or vehicle immobiliser must hold a valid SIA licence before they can legally work in a licensable role.
For security companies, the stakes are significant. Employing an unlicenced operative — even unknowingly — can result in prosecution, unlimited fines, and reputational damage that is difficult to recover from. As a security company director or manager, understanding SIA licence compliance is not optional. It is a legal and commercial imperative.
Which Roles Require an SIA Licence?
The SIA licences the following activities under the Private Security Industry Act 2001:
- Door supervisor — individuals working on licensed premises, including pubs, nightclubs, and entertainment venues
- Security guard — operatives protecting premises, property, or assets
- Close protection officer — personnel providing personal protection (bodyguards)
- CCTV (public space surveillance) operator — individuals operating CCTV equipment in public spaces
- Cash and valuables in transit — operatives transporting cash or high-value goods
- Key holder — individuals responding to alarms and holding keys to premises
- Vehicle immobiliser — operatives fitting or removing vehicle clamps on private land
Front-line managers who directly supervise any of the above must also hold the appropriate SIA licence for the role they are managing.
How to Check Whether a Guard Is Licenced
The SIA maintains a publicly accessible licence register at services.sia.homeoffice.gov.uk. You can search by name or licence number to verify whether someone holds a current, valid licence. The register shows:
- Licence type and sector
- Licence expiry date
- Whether the licence is active, expired, or suspended
While manual checking is possible, it creates a significant operational burden for companies managing dozens or hundreds of operatives. A licence that was valid when an employee joined may have expired months or years later — and without a system to flag these expiries proactively, the risk of inadvertently deploying an unlicenced guard is real.
Consequences of Non-Compliance
Operating with unlicenced personnel exposes your company to serious risk:
- Criminal prosecution — employing an unlicenced individual in a licensable role is a criminal offence under the Private Security Industry Act 2001. Both the individual and the company can face prosecution.
- Unlimited fines — courts can impose unlimited financial penalties on companies found guilty of employing unlicenced operatives.
- Loss of contracts — most local authorities, NHS trusts, and corporate clients specify SIA compliance as a contractual requirement. Non-compliance can void contracts immediately.
- Damage to ACS status — if your company holds or is pursuing SIA Approved Contractor Scheme (ACS) accreditation, repeated compliance failures will jeopardise your standing.
- Reputational damage — SIA enforcement actions are publicly recorded. Being named in a prosecution can destroy trust with existing and prospective clients.
Best Practices for SIA Licence Compliance
1. Record Licence Details at Onboarding
Capture each operative’s SIA licence number, licence type, and expiry date before they begin work. Never deploy a guard before you have physically sighted their licence and verified it against the SIA register.
2. Set Expiry Reminders
An SIA licence is valid for three years. It is easy to overlook renewals in the day-to-day running of a busy security company. Build a system — whether a spreadsheet or dedicated software — that alerts you at least 90 days before any licence expires, giving you sufficient time to prompt the operative to renew.
3. Conduct Regular Spot Checks
Do not rely solely on onboarding checks. Run periodic audits against the SIA register, particularly for long-serving employees whose licences may have renewed, been suspended, or lapsed without your knowledge.
4. Maintain Records for Audit
Keep documentary evidence of your licence checks, including the date each check was performed, who performed it, and the licence status at that time. If an SIA inspector or client ever requests evidence of your compliance processes, you need a clear audit trail.
5. Automate Where Possible
Manual checking of the SIA register is time-consuming and error-prone at scale. Purpose-built guard management software can automate licence verification against the SIA Public Register, flagging expired or suspended licences before deployment decisions are made.
How TacDesk Helps UK Security Companies Stay Compliant
TacDesk is a guard management platform built specifically for UK security companies. Its SIA Public Register auto-sync feature checks each operative’s licence status directly against the SIA register and flags any anomalies — expired licences, suspended licences, or licence type mismatches — so that managers are alerted before an unlicenced operative is deployed.
Rather than manually checking each guard individually, compliance managers can view licence status across their entire workforce from a single dashboard. Expiry alerts are generated automatically, giving your team the lead time needed to prompt renewals before licences lapse.
Combined with TacDesk’s ACS compliance module, security companies can maintain the documentation and process evidence required to achieve and retain SIA Approved Contractor Scheme accreditation.
Summary: Key Points for Security Company Managers
- All front-line security operatives in licensable roles must hold a current SIA licence
- Employers are legally responsible for verifying licence status before deployment
- Licence status can change — a guard who was compliant yesterday may not be compliant today
- Proactive expiry management and regular register checks are essential
- Automated systems reduce risk and provide an auditable compliance trail
SIA licence compliance is one of the most fundamental obligations of running a private security company in the UK. Getting it right protects your business, your clients, and the operatives who rely on you for their livelihoods.
Want to see how TacDesk automates SIA compliance for your workforce? Get in touch with the team or explore our features page.