5 Best Security Guard Companies in London (2026)

DoubleR Security is an SIA-licensed London security company covering club and pub security, event security, stadium and retail security, hotel security, construction site security, dog handler security, and close protection. It works across a broad range of venue types and client needs rather than specialising narrowly in one sector, positioning itself as a general-purpose provider for corporate, hospitality, and private clients. The company is run by managing director Razvan Rusei.

Spartan Elite Security is a Mayfair-based executive protection company founded in 2017 and described on its own site as ex-Special forces owned and operated. It specialises in close protection for celebrities, ultra-high-net-worth individuals, professional athletes, diplomatic missions, and business executives, alongside asset protection and event security for high-profile productions. The company has worked on multi-day film and photoshoot productions requiring coordinated close protection teams across several locations.

Emblem Security is a Fleet Street-based security company offering security guards, CCTV installation, fire alarm systems, alarm systems, key holding, and facilities management. It has built a long-standing reputation in the London security industry, with reviews spanning back nearly a decade, covering everything from urgent construction site cover to private event security. The company positions itself as a broad security and facilities provider rather than a single-service specialist.

Fahrenheit Security is a Mayfair-based security guard company offering guarding services for private events and corporate clients across London. Reviewers describe hiring the company for large hosted events requiring crowd control, guest management, and a visible but approachable security presence. The company has built a strong reputation among event organisers specifically, based on the detail and consistency of its reviews.

Priority First Building Management is a premium building management and security company covering corporate security, construction security, key holding, CCTV monitoring, and concierge and front-of-house management, alongside full building operations. It manages high-value London properties and states it currently secures well over a billion pounds in assets across the city. The company blends traditional security guarding with wider property operations like maintenance coordination and compliance.