Edward T. Dunn

Baird Corp. manufactures laboratory instruments. The private company is based in Franklin, MA.

The Chelsea Clock LLC is a clock manufacturing company that has been in operation since 1897. The company's clocks, including the Chelsea Ship's Bell and Barometers, are handmade using forged brass cases to last for generations. The company is based in Chelsea, MA. The company is one of the oldest and largest clock manufacturers in the world, known for designing and building some of the most exquisite clocks. John Kirby Nicholas has been the CEO of the company since 2005.

ZOLL Medical Corp. develops and markets medical devices and related software solutions for emergency care. It provides products for defibrillation and monitoring, circulation and CPR feedback, data management, fluid resuscitation, and therapeutic temperature management. The firm provides technologies which help fire professionals, clinicians, and rescuers in providing critical care and resuscitation treatment. It also designs software that automates data documentation and management for both clinical and non-clinical information. The company was founded by William Bright, Rolf S. Stutz, Paul M. Zoll, Leigh Stein, and Thomas M. Claflin in 1980 and is headquartered in Chelmsford, MA.