Become a Citywide Security Subcontracting Partner
Security subcontractors across the UK are invited to register their interest in working with Citywide Security Company UK. If your business supplies dependable SIA-licensed officers and understands the demands of professional guarding, we would like to hear from you.
Our Subcontracting Partnership Network connects local security companies with assignments suited to their coverage, experience and available resources. We welcome established providers serving one city, several regions or multiple UK locations.
- ✅ Introduce your company and the areas you cover.
- ✅ Tell us which security services your team can deliver.
- ✅ Build a working relationship around clear duties, communication and agreed terms.
This is a business partnership enquiry. Individuals seeking employment should visit Careers. Registration does not guarantee approval or assignments.
Register Your Interest
Use the subject Security Subcontractor Partnership. In your message, include your legal business name, company number if applicable, website, business address, coverage areas, services and available officer capacity.
Contact Citywide Security
Send us a message and a member of our team will respond as soon as possible.
Need an Urgent Response?
For urgent security requirements, please call us directly on 020 3900 0000 — we're available 24/7.
Looking for a Quote?
For security service quotes, please use the Quote Request Form so we can capture your site details properly.
Response Times
Contact enquiries: within 4 hours.
Quote requests: within 2 hours.
Urgent security: call us directly.
We will review your enquiry and request supporting documents where appropriate. Read our Privacy Policy.
What Is the Subcontracting Partnership Network?
The network brings independent UK security businesses together with Citywide to support client assignments locally. Each opportunity is considered against the site requirements, your team’s capabilities and the coverage you can reliably provide.
How the Partnership Works
- ✅ Register: share your business details and operational coverage.
- ✅ Review: discuss experience, licences, insurance and suitability.
- ✅ Agree: confirm duties, hours, rates and payment terms before accepting work.
- ✅ Deliver: follow the agreed instructions, reporting and escalation arrangements.

Security Subcontracting Coverage Across the UK
We welcome enquiries from security companies covering the cities below and surrounding areas. Tell us your practical travel radius, mobilisation availability and any additional regions your team serves.
Why Join Our Security Partnership Network?
✅ Relevant Opportunities
Be considered for assignments that match your services, locations and operational capacity, from temporary coverage to longer-term requirements.
✅ Clear Assignment Briefs
Agree the site, officer numbers, hours, duties and reporting expectations before deployment, so your team understands what the assignment requires.
✅ Coordinated Communication
Establish named contacts and escalation arrangements for attendance, incidents, client requirements and changes to the agreed scope.
✅ Agreed Commercial Terms
Confirm rates, invoicing requirements and payment terms in writing before work begins. Each assignment is subject to its own agreement.
Services Your Company Can Support
Tell us which services you provide, your sector experience and any limitations on availability.
- ✅ Construction Site Security
- ✅ Retail Security Services
- ✅ Mobile and Static Security Guards
- ✅ Reception Security Services
- ✅ Event Security Services
- ✅ Warehouse Security Services
Explore our full security services range.
What We Look For in a Partner
- ✅ Clear business identity and reliable operational contacts.
- ✅ Appropriate current SIA licences for the people and activities involved.
- ✅ Relevant insurance and experience for the proposed assignment.
- ✅ Reliable attendance, supervision and relief arrangements.
- ✅ Professional conduct, incident reporting and site communication.
Tell us about any current accreditations. SIA individual licensing and company ACS approval are different. The ACS is voluntary; any assignment-specific approval requirements will be discussed during review. Read the SIA guidance.
Ready to Introduce Your Security Business?
Register your interest using the form above. Give us a clear picture of your services, coverage and capacity so we can assess where a partnership may fit.
Register Your InterestPrefer to speak to our team? Contact Citywide Security Company UK.