Stanley Convergent Security Solutions Inc. of Naperville, Ill. purchased the alarm business of Pyramid Alarm Inc., a security company headquartered in Lansing, Ill. Pyramid Alarm has been in business since 1978 and has expertise in installing, servicing, inspecting, maintaining and monitoring intrusion alarms, fire alarms, access control and video surveillance systems.

The purchase of the business operations includes commercial, residential and municipal customers in the Illinois and Indiana markets. Terms of the sale were not disclosed.

“The acquisition of Pyramid Alarm continues our commitment to growing our electronic security platform strategically in the United States. We are excited to add more density to our customer base in the Illinois and Indiana markets. The addition of Pyramid Alarm creates additional efficiencies for our existing operations in those markets and solidifies our relationship with local law enforcement and municipalities across Chicagoland,” explained Tony Byerly, president and chief operating officer, Stanley CSS North America and United Kingdom Direct.

Pyramid Alarm’s customers will be serviced by the existing Stanley CSS office located in Downers Grove, Ill.