The Millennia Group is an electronics manufacturing service (EMS) provider that contracts with OEMs (original equipment manufacturers) to provide electronics design, prototyping, testing, and assembly, as well as supply chain management and inventory programs. Millennia operates through three subsidiaries. Triangle Circuits creates printed circuit boards (PCB); Millennia Design offers electronic engineering and design services; and Millennia Technology provides electronics manufacturing services to the medical, instrumentation, telecommunications, and consumer electronics markets. The company was established in 1999. Michael D'Ambrosio Sr., the company's chairman and CEO, owns The Millennia Group.