Hart Alarm in Albany, N.Y. a 47-year-old second-generation company, has sold its alarm business to Doyle Security Systems in Rochester, N.Y. Doyle has been in business since 1919.
With nearly 23,000 subscribers, of which roughly 60 percent are residential customers, Doyle Security Systems Inc. Rochester, N.Y., is currently ranked No. 44 by recurring monthly revenue in the SDM 100.
Welcome to this annual special supplement of SDM titled Monitoring TODAY. Whether you operate your own central station or use the services of a third-party monitoring company, this issue contains
