In 1982, Jim Stone, former insurance commissioner for the Commonwealth of Massachusetts, had a vision for the future. He would form a new kind of auto insurance company - one that would: Define a new, higher standard of customer service for the industry; Establish deeper, more productive relationships with its independent agents; Provide an unusually rewarding workplace for creative, empowered employees; and Develop a new generation of technological and analytical tools for every aspect of the business Plymouth Rock’s success in Massachusetts led to expansion into the New Hampshire market with the creation of Mt. Washington Assurance Corporation in 1991. Mt. Washington is a thriving business that takes pride in offering revolutionary benefits that have set standards for others to imitate. Our values as a company reflect the values and history traditionally associated with the state we call home: honesty, loyalty, friendliness, hard work and the pursuit of excellence. As we grow, we promote service, integrity, stability, innovation and commitment, all of which help to drive our success and to yield a better experience for those we are privileged to serve. Mt. Washington Assurance Corporation is rated "A- (Excellent)" for financial strength by A.M. Best, the insurance industry's premier independent rating service.