5 Feb 2026

Telguard, a pioneer in security and life-safety communications, proudly marks its 40th anniversary, celebrating four decades of innovation, reliability, and customer-first service.

Founded in 1986 by William De Nicolo, Telguard emerged from a simple but powerful idea: everyone deserves the peace of mind that comes with a truly secure home or business. At a time when landline-based alarm systems could be disabled with a single snip of wire, Telguard pioneered cellular communication technology to ensure uninterrupted protection.