> Accreditations

  Quality Accreditations

Quality remains at the forefront of all of our business operations, and as such we constantly strive for excellence in quality, demonstrated by our numerous accreditations recognising this, as confirmed below:-



SIA ACS Accredited
GMS were one of the first companies to be registered under the SIA as a registered Approved Contractor (ACS).
GMS Security Services Ltd holds the SIA Approved Contractor Status for the provision of Security Guarding and Key Holding services
Through using such an approved supplier, our clients are ensured that we are committed to customer service and the licensing of staff. It takes a holistic view of how well an organisation is managed and an approved organisation must demonstrate to an independent assessor, on an annual basis, that it has met defined standards. Ultimately, we must be able to exhibit clear customer focus and an increased flexibility in all of our business operations.


  BS EN ISO 9001:2008
We are accredited to BS EN ISO 9001:2008 in particular to:-
BS7499 Code of Practice – Security Guarding
BS7858 Code of Practice – Screening
BS7984 Code of Practice – Keyholding and Alarm Response

Download PDF

BS EN ISO 14001 – Environmental Management Standard
Identify and control the environmental impact of its services, improve
its environmental performance continually and to implement a
systematic approach to setting environmental objectives.

Download PDF
  BS EN ISO 18001 Health and Safety Standards
OHSAS 18001 is the latest certification specification for Occupational Health and Safety Management Systems. Registration to OHSAS 18001 by an independent, third party, certification body demonstrates a commitment to implement, maintain and improve the way in which GMS manage our Health and Safety system.

Download PDF

ISO 27001:2005 Information Security
Is a specification for the management of Information Security. It is applicable to all sectors of industry and commerce and not confined to information held on computers. The standard helps organisations to ensure they are always appropriately protected.

 Information security can be characterised as the preservation of:

  • Confidentiality
  • Integrity
  • Availability
Obtaining this accreditation demonstrates that we have addressed, implemented and controlled the security of our information.


A body formed in 1997, helps to assess companies health and safety competence via their Health & Safety Policy Statement, their organisation for heatlh & safety and their arrangements to a standard acceptable. 

CHAS was formed with two main aims:

  • To improve health and safety standards across Great Britain
  • To reduce duplicated safety applications for both supplier and buyers
Some beneifts to GMS particapating in the CHAS Scheme:
  • Shows compliance with important parts of health and safety law
  • Approved to work for all CHAS` buyers.

The National Britannia Safecontractor Scheme
Which assesses the health and safety competency of contractors
and service providers.


Buying Force, the specialist service charge procurement team and partner of choice, providing an intelligent added value procurement service that delights and exceeds clients’ expectations.


Family Business Awards create an ethical, friendly and supportive community for family businesses

Work with us!