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For over 25 years, Mutual has served a diverse range of upscale commercial and residential clients.

Founded in 1989, Mutual Security Services, a wholly owned subsidiary of Kastle Systems International LLC, has been providing technology based managed security solutions for a diverse range of upscale commercial and residential clients– including leaders in jewelry, fine art and antiques, financial services, and luxury retail– in the New York Metropolitan area for over twenty five years. Mutual’s proprietary, UL listed Five Diamond Certified and New York City fire department approved central station (located in the heart of mid-town Manhattan) is the base of operations for monitoring an installed customer base of thousands of sites in the tri-state area.

In 2013, Mutual Security Services and its sister company Stat Land Security Systems (the leading security provider in the Staten Island market) were acquired by Kastle Systems International LLC, ( a national integrated security provider headquartered in Falls Church, VA. Ranked in the top one percentile of US security companies, according to SDM magazine, Kastle’s complementary and broad suite of products and services including advanced video monitoring and greater geographic coverage help support Mutual’s clients nationwide. The Kastle family currently protects more than 10,000 client sites domestically and internationally and has offices in Los Angeles, San Francisco, Dallas, Houston, Chicago, Atlanta, New York, Philadelphia, and Sydney, Australia.

Mutual Security Services is an authorized installation and service dealer for the leading security technology companies including:
  • Bosch Security Systems, Inc.
  • Vigilant/Edwards Fire Products Inc.
  • Sony Electronics Inc.
  • DSX Access Control Systems Inc.
  • Milestone Video Software Solutions
  • AXIS IP Camera Corp.
  • Siedle Corp.
  • Speco Video Technologies
  • Geovision Inc.

“Our only mission is to protect you and your assets. That’s why your security needs are Mutual’s one and only priority. Our staff is trained to respond quickly and efficiently to all contingencies related to your safety and protection. We understand that we are in a serious business protecting billions of dollars and that’s why we are always at the top of our game. Our motto has always been: “Security by professionals for professionals” which has never been more true than it is today.”