CIS Security Limited

Security and InvestigationsEngland, United Kingdom1001-5000 Employees

CIS Security Limited is a London-based, independent security and investigations provider with a long-standing presence in the UK market. It operates across three divisions: core security services, CIS Front Of House for managed reception services, and CIS Innovative Solutions offering a mix of digital, physical, and strategic capabilities. The company emphasizes a robust management structure and active quality monitoring, with staff selected for their fit to roles and service standards maintained above industry norms. Having grown organically for more than five decades, it positions itself as a leading independent guarding firm focused on service excellence and ongoing innovation.

Its client base comprises organizations navigating complex digital, regulatory, and customer-facing environments, seeking a partner capable of handling day-to-day security needs as well as broader risk-management challenges. Based in London, the company operates in the security and investigations sector, stressing flexible delivery and adaptation to changing environments. A notable recent development is a set of partnerships formed in 2026 with the Institute of Strategic Risk Management and Bank of China to support The London Forum, signaling ongoing collaboration with risk-management and financial-services stakeholders.

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