Symera Partners has announced the acquisition of CIS Security, a UK-based security specialist, in partnership with the company’s management team. Founded more than 57 years ago by the Palmer family, CIS provides premium security services, front-of-house and technology-enabled solutions to major commercial properties, public bodies, cultural institutions, and other critical sites across more than 300 UK locations. The transaction enables the Palmer family to retire from ownership while ensuring CIS’s continued independence.

CEO Neill Catton and the existing senior leadership team will remain in place to lead the business. Symera will supply strategic capital and resources to support CIS’s investment in people, technology, service capabilities, and broader UK growth. The deal reflects a family succession strategy focused on preserving operational continuity and long-term value.

Editor’s note: This news brief was produced with the assistance of artificial intelligence.