Doyle Security Systems, based in Rochester, N.Y., has the acquired the security division of DFT Communications (Dunkirk & Fredonia Telephone Co.), a family-owned company founded in Fredonia, N.Y., in the 1890s.

DFT’s 2,100 security accounts (55 percent of which are commercial, 45 percent residential) will now be monitored by Doyle Security’s emergency response center, while service and installation work will continue to be provided by DFT Security employees who will be joining the Doyle team.

Along with the acquired accounts, Doyle Security will be retaining DFT Security’s Fredonia office and seven employees. Fredonia will become the 10th Doyle branch in New York, joining Buffalo, Olean, Syracuse, Watertown, Albany, Fishkill and Catskill, N.Y., plus Erie, Pa., and the corporate headquarters in Rochester.

“DFT has earned an incredible reputation in the security and life safety industry, and we couldn’t be prouder to be merging with their security division,” stated Doyle Security President and CEO Jack Doyle. “Our mutual passion for customer service and our alignment on values really makes this an excellent fit for us.”

DFT Communications shares many common traits with Doyle Security including being a family-owned company for more than 100 years, according to an announcement. DFT will retain their internet and phone services, staff and accounts.

Doyle Security Systems, ranked No. 23 on the 2024 SDM 100, states that it is the largest security company in New York. Family owned and operated since 1919, the company services more than 45,000 residential and commercial customers across New York and Pennsylvania.