The Keyholding Company
Security and InvestigationsEngland, United Kingdom51-200 Employees
The Keyholding Company, based in London, is a tech-enabled mobile security provider offering alarm response, mobile patrols, locks and unlocks, emergency and temporary guarding, vacant property checks, and access services. It uses a proprietary platform to handle job booking, data analysis, and access management, supporting data-driven risk decisions and cost control for clients. The company is known for its flexibility and rapid response, underpinned by a technology-led approach. The firm operates the UK's largest national security network, working with around 200 accredited partners to deliver coverage across national infrastructure, banks, public sector, and commercial offices, and serves thousands of clients with more than 30,000 live properties. It holds NSI certification, placing it in the top 5% of security companies for quality of service and regulatory compliance, and it is B Corp certified; it also reports working with 93% of the UK's top 30 facilities management firms. In 2026 it launched the Protection Readiness Tracker to support compliance with Martyn's Law guidance.