Who is the registered agent for service for progressive insurance in Massachusetts?

Typically, the office of the insurance regulator (often called the "Insurance Commissioner") serves as the registered agent for suits against insurance companies. An insurance company normally assents to this process when it becomes authorized to write insurance in that state. Once served, the insurance commissioner's office has a process by which it transmits the summons and complaint to a contact person designated by the insurer, usually at the Home Office of the insurer.