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The Approved Contractor Scheme (ACS) is a voluntary programme developed by the SIA, designed to establish baseline performance standards in delivering outsourced security services. Just over 2500 companies (min 5 employees) currently operate in the UK’s private security industry. Approximately 750 of these are assessed as part of the SIA ACS. 

Recently and for the second year running, we were audited by our partners – The National Security Inspectorate (NSI).

ACS companies can score a maximum of 145, with zero being scored as a satisfactory level of accreditation. Only companies who meet these standards and continue to meet them when annually audited are permitted to advertise their membership of ACS. 

It is a mandatory requirement of GSS’s clients that we maintain our accreditation as an ACS-accredited company. 

This year, our ACS audit included the following: 

  • An assessment of our company leadership and management processes
  • A full-service delivery review, including several site visits incorporating client and employee interview
  • Our compliance with the IR35 agency worker legislation and key control procedures, including adherence to BS:7858
  • A review of our financial, resource planning and customer relationship management procedures

After our audit, we obtained a score of 123 – an improvement of one point from our last audit – another point increase, following annual score improvements since 2010.

We want to thank the NSI and their assigned auditor Natalie Ginn for facilitating a comprehensive and constructive audit experience.

A huge thanks and congratulations to all of our colleagues for their support with the audit and for their ongoing focus on continuous improvement.

This audit score is testimony to our team’s efforts during the last year, and we couldn’t be prouder of this remarkable collective achievement.