Allied Universal, a security and facility services company in North America, has acquired Security Integration Inc., a security systems company based in San Rafael, Calif.

This is CertaSite’s sixth acquisition in Michigan and expands CertaSite’s service territory into the Upper Peninsula. 

Doyle Security Systems Inc., a provider of residential and commercial security, fire and medical monitoring systems in Upstate, Western and Central New York as well as Western Pennsylvania has announced the acquisition of two security companies: Hart Alarm in Albany, N.Y. and Austin Security in Olean, N.Y.