OCS has completed the acquisition of City Group Security, an established nationwide security company founded in 1993 and ranked among the top 30 security businesses in the UK.
The acquisition strengthens OCS’s UK security capability. City Group Security brings 600 new colleagues into OCS and increases operational density across London and the South East, complementing OCS’s existing nationwide security footprint.
The business delivers static guarding, canine security, mobile patrols, keyholding and alarm response. Its self-delivered canine security operation is a particular addition for OCS, bringing specialist expertise in-house and supporting future growth of the service for customers.
City Group Security’s experience extends across logistics, local government, education and utilities. The utilities footprint increases OCS’s strength in the sector, supporting customers in critical environments where site protection, resilience and operational reliability matter.