GSL Dardan (GSLD) is the Eastern region's leading independent provider of private security services and security systems. The company 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.The company employs over 500 staff delivering front-line security services to businesses from all industry sectors within the Eastern Region and in London. Accredited by the , GSL Dardan is ranked in the top 10% of the .In 2012 a new division was launched to provide event security solutions across the Eastern region.