In 1980, Dory Retherford started working at Per Mar as a third shift dispatcher to gain experience in the security industry. 

Per Mar Security Services, a provider of total security solutions for residential and commercial clients based in Davenport, Iowa, received the Five Diamond Certification from The Monitoring Association (TMA). 

Per Mar Security Services, a provider of total security solutions for residential and commercial clients based in Davenport, Iowa, received Five Diamond Certification from The Monitoring Association (TMA).

Per Mar has hired the team from Armor Security, and is operating out of its Bloomington, Minn., location. 

Brian Duffy becomes the third generation of the Duffy family to lead Per Mar.

Per Mar will continue to serve customers out of the Valparaiso location.

Per Mar Security Services, a provider of total security solutions for residential and commercial clients based in Davenport, Iowa, has acquired Stearns Sound & Security of Waupaca, Wis. 

Per Mar Security Services, a provider of total security solutions for residential and commercial clients based in Davenport, Iowa, has acquired American Pride Security Services of Bloomingdale, Ill. 

Per Mar Security Services, based in Davenport, Iowa, announced the hire of Chris Edwards as president of Electronic Security.

Per Mar Security Services has acquired All Channel Electronics based in Madison, Wis.