Phase One Security Ltd

9-10, Cranbourne St, Brighton, East Sussex, BN1 2RD

  • Tel:  0800 0096898

About us

“Whether you need one security guard for an evening or fifty security guards for a 3-year term, we can help you.”

Phase One Security was formed in 2007 and since then has steadily grown into one of the leading security service providers. We have established an excellent reputation for the quality of our security services and security personnel who are all vetted to BS7858, a Standard set by British Standards Institute (BSI).

We hold costructionline and safecontractor accreditations and all our staff are fully SIA licenced and trained enabling us to provide our clients with assurance that their premises are being guarded by trained security professionals.

The difference from choosing us to our competitors is we can completely tailor a range of security services to meet your companies criteria and our flexible approach allows us to revise the service wherever necessary, guaranteeing you the utmost cost-effective security service for your business. With many years of security experience amongst our staff, we utilize our knowledge and ability to deliver you the most comprehensive service.

Services and products

  • retail security
  • office security
  • mobile security patrols
  • keyholding service
  • industrial security
  • event security
  • estate security
  • drug testing
  • Construction Security
  • Demolition Security
  • 24 Hour Security
  • Concert Security
  • Festival Security
  • Store Detectives
  • Private Detectives
  • Security Guards
  • Security Officers
  • Security Services
  • Residential Security
  • Mobile Security Patrols
  • Guard Dogs
  • Dog Handlers
  • Sniffer Dogs
  • Nightclub Security
  • Door Supervisors
  • Hotel Security
  • Office Security


  1. Great Company


    Phase One Security provided a superb security service and the team conducted themselves with professionalism and discretion at all times. Well done guys, and thank you! I will look no further than this company for all my future security needs – Phase One’s event security are the best that we have had.

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  2. Professional Company


    I was overwhelmed by the professionalism of your retail security: they arrived early to do a site assessment and kept me up to date with all goings on throughout the night. I couldn't be happier with the service you provided. Thank you.

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  3. Westridge Construction


    We would like to thank the Phase One Security team for a job well done. We are extremely pleased that the build was completed without theft or damage, and look forward to working with them in the future. Some traits that stood out were the well-presented guards, cost effective solutions, friendliness and punctuality.

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