GSL Dardan was formed in January 2009, through the merger of established companies ISL Dardan Security and Gardwell Security, which have a trading history dating back to 1973. With a staff role numbering over 500, managed from nine regional offices, GSL Dardan is one of the UK's leading independent providers of private security services and security equipment. Uniquely, GSL Dardan is also the only company capable of delivering a true solution comprising the spectrum of security elements in the East of England.

The company has been providing security officers since 1973 and is accredited by the National Security Inspectorate (NSI) as complying with BS 7499 (Manned Guarding), BS 7858 (Vetting and Screening), BS 7984, (Key Holding and Response Services) and BS 7872 (Cash in Transit Services).

GSL Dardan is also an Approved Contractor of the Security Industry Authority (SIA), the regulator responsible for implementing the Private Security Act 2001.

GSL Dardan is accredited to ISO 9001:2008 and is currently seeking accreditation to ISO 14001 and ISO 18001.

Our professionalism, trained workforce, flexibility, responsiveness, and innovative approach to security are the keys to our success.

• Norfolk (Norwich, Great Yarmouth & Kings Lynn)
• Suffolk (Stowmarket & Woodbridge, Ipswich & Lowestoft)
• North Essex (Colchester)
• Cambridgeshire (Peterborough)
• Aberdeen
• South Lincs (Stamford & Spalding)