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Timeline Express Announcements

Guarding Our Seniors

The Guardian Medical Monitoring division is established to help seniors with personal help buttons, medication management, and wander management devices. The division was sold in 2022.

Growth Through Mergers

Automatic Alarm and Certified Alarm, both owned by Milton Pierce’s sons Richard and Douglas, merge with Guardian Alarm.

Armored Cars Begin Patrol

The Guardian Armored Security division is established to provide armored car and cash processing services. This division was sold in 2007.

Continued Growth

Guardian Alarm is ranked the 14th largest security company in the United States and has continued to be top-ranked.

Milton Pierce Starts Guardian Alarm

During the Great Depression and at the age of 15, Milton Pierce started a burglar alarm company in his neighborhood. A few years later, he expanded and purchased Guardian Alarm in Detroit, Michigan.

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