Innovation: We Lead the Way in Managed Access Solutions

Innovation is in our DNA. We pioneered managed access as a service in 1972 and have been leading the way ever since.  From surveillance footage that’s as easy to search as Google, to opening a door automatically with your smartphone, our security solutions are as cutting-edge as they are delightful to use.


To over 10,000 commercial, multifamily, enterprise, and educational facilities.

Protecting over 460M square feet of space across the U.S. and Australia.

Investing over $60M in customer-facing technology, systems, and equipment.

The industry's best J.D. Power ratings for service excellence across millions of users.


A Complete Managed Security Solution

Kastle Systems provides comprehensive, turnkey security solutions for more than 10,000 premier sites across the United States and abroad. Our award-winning end-to-end managed security approach allows you to focus on your core business while we monitor and maintain your security.


Words From Our Clients


Security at Your Service: Our White Glove Approach

We are your single, accountable partner for all of your security needs. Our White Glove service approach to your security means that we support you around the clock with a proactive and dedicated account team. This emphasis on customer service makes your property safer and your life easier.