With revenues exceeding $42 million and 125 employees, Advent systems Inc. has been providing integrated technology solutions since 1994. With offices in Chicago and Little Rock as well as satellite operations in Texas, the company helps protect property and assets with the design, installation and service of integrated electronic security systems.

"For more than 25 years, we've been dedicated to providing our customers with the highest level of service and quality," said Michael Walsdorf, president of Advent Systems Inc. "We believe Allied Universal supports our business strategy and overall core values, which will result in a continuation of that high level of service and quality to our clients. We're also thrilled to present a path to the future to our employees, who have been an integral part of our growth and success from the beginning."

The addition of Advent Systems will expand the Allied Universal Technology Services division within the Midwest region. Allied Universal Technology Services provides electronic access control, video surveillance, fire/life safety, alarm monitoring, emergency communications, hosted /managed services and a variety of Global Security Operating Center (GSOC-as-a-Service) offerings.

"I have known Mike Walsdorf and John Lothrop for 25 years and have successfully partnered with them on many occasions," said Carey Boethel, president of Dallas-based Allied Universal Technology Services. "It is truly an honor to be partnering with them again as we continue to expand our national footprint."

Advent Systems was represented by Stifel in the transaction.