SOUTHFIELD, Mich.—Guardian Alarm, a Midwest residential and commercial fire, security and automation systems provider, has announced the acquisition of Sievers Security, based in Cleveland, Ohio.

SOUTHFIELD, Mich.—Guardian Alarm, a privately held national security company based here, unveiled Virtual Guardian, a multi-dimensional security program that leverages remotely-monitored video and ...

SOUTHFIELD, Mich.—Guardian Alarm, a super-regional security company based here, has revamped its website, hired a marketing company, and bolstered its sales team as part of an overall successful ...