Managed commercial security for Class A office buildings

You run the building. We’ll handle security. 

Kastle designs, installs, monitors, and manages commercial security systems that create a seamless tenant experience, simplify operations, and protect people and property.

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Securing 1 billion+ square feet of commercial properties

Over 3,400+ Class A buildings rely on Kastle for commercial security that protects spaces, improves tenant experiences, and simplifies operations.

Purpose-built for commercial building complexities

For more than 50 years, Kastle has helped commercial property owners, operators, and tenants solve security and operational challenges with one managed security partner.

Building security solutions that make every day easier

Move beyond the badge and give tenants the convenience they expect. Kastle delivers hands-free entry, faster visitor check-ins, and seamless movement throughout your property.

  • Mobile credentials let tenants unlock doors with a phone – not a key card.

  • QR code visitor check-in gets guests through the lobby faster.

  • One credential for the parking garage, lobby, elevator, and office suite.

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Why customers choose Kastle

Exceptionally rated for ease of use, setup, and support.

Rated 4.6 out of 5 on G2

9.3

Ease of use

#1

In physical security, spring 2025
  • Effortless remote access with stellar support.
    Ana C. Assistant Property Manager
  • Great products and fast, helpful customer service.
    Edgar G. Manager
  • Convenient phone-as-a-key access and a great visitor portal.
    Philanthropy
  • Excellent products and fast service.
    Paula E. Office Manager
  • User-friendly and smooth experience with always-available support.
    Commercial real estate

More from Kastle

Explore trends, insights, and best practices from the leading managed security provider.

Trusted credentials. Verified compliance.

Kastle is SOC 2, NDAA, and CCPA compliant, with a TMA (The Monitoring Association) Five Diamond designation.
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