Alarm.com Acquires Shooter Detection Systems

Guardian Alarm Acquires Columbus-Based SDG Security

September 30, 2024

Professional Services

Guardian Alarm has completed the acquisition of Columbus-based SDG Security, expanding its footprint in Ohio and enabling the company to offer its residential and commercial security and fire alarm services to more customers in the Columbus market. The deal brings SDG's customers and local team into Guardian Alarm's operations; SDG co-owner Bruce Reedy commented on confidence in Guardian Alarm continuing SDG's tradition of service.

Schneider Geospatial Acquires Systems Development Group

September 6, 2024

Cloud & SaaS

Schneider Geospatial, a portfolio company of Align Capital Partners, has acquired Systems Development Group (SDG), a provider of geo-centric property record and analysis solutions for local governments. SDG’s Image Mate Online and supporting services will be integrated into Schneider’s parcel management SaaS portfolio, expanding its GovTech capabilities and adding over 1,000 local-government clients across 34 states; the deal is the fourth add-on since Align’s 2022 investment in Schneider.

Guardian Alarm Acquires Controllor Security Systems

January 9, 2026

Professional Services

Guardian Alarm, a Southfield, Michigan-based full-service security company, has acquired Controllor Security Systems, a long-established Metro Detroit security provider serving residential and commercial customers for more than 40 years. The acquisition expands Guardian Alarm's presence in Michigan and brings Controllor's local customers access to Guardian's broader portfolio of monitoring, video surveillance, access control and life-safety services.

Guardian Alarm Acquires ProAlert Security Systems

December 19, 2024

Professional Services

Guardian Alarm, a Southfield, Michigan–based full-service security company, has completed its acquisition of Cincinnati-based ProAlert Security Systems. The deal expands Guardian Alarm's customer base and capabilities in the Cincinnati market, allowing it to deliver security and fire alarm services to more residential and commercial customers.

Guardian Alarm Acquires S&S Security Alarms

January 1, 2025

Professional Services

Guardian Alarm, a large full-service U.S. security company, has acquired S&S Security Alarms of Searcy, Arkansas. The deal marks Guardian Alarm's entry into Arkansas and Guardian will continue to operate the local business under the S&S Security Alarms name to serve residential and commercial customers with enhanced capabilities and innovation.

Alarm.com Acquires Majority Stake in Noonlight

October 19, 2022

Cloud & SaaS

Alarm.com completed a majority-stake acquisition of Noonlight, a connected safety and event management platform that provides context-aware emergency response and monitoring. Noonlight will continue to operate independently from its St. Louis headquarters while leveraging Alarm.com's platform, resources, and partner network to expand its offerings.