Eligibility for SIU Membership
SIU is UK based, however we also accept membership from the overseas.
SIU members come from a wide variety of practices including, but not limited to the following;
GROUP A
- Security Guards
- Door Supervisors
- CP Operatives
- CCTV Operatives
- CVIT Operatives
- Security Managers
- Security Directors
GROUP B
- Event Stewards
GROUP C
- Physical Security Consultants
- Cyber Security Consultants
- Risk Management Consultants
- Information Security Officers
- Private Investigators
- Fraud Investigators
- Security Engineers
GROUP D
- Information Security Officers
GROUP E
- Enforcement Officers
GROUP F
- First Aiders
- Fire Marshals
- First Responders
- ECAs
- Ambulance Technicians
- Paramedics
- Specialist Paramedics
- Specialist Nurses
- Security Industry Trainers
- First Aid and Clinical Trainers
GROUP G
- Members of the Armed Forces
- Armed Forces Veterans
GROUP H
- Members of the Police Forces
- Police Forces Veterans
GROUP I
- Students
GROUP J
- Special Interest and Invited Groups
GROUP K
- SIU's members' immediate family members
Please note Police Service employees who wish to join SIU must also belong to their designated trade union or the Police Federation.

Find out more about SIU member benefits by clicking here.