A. T. Matthews & Dier is an Independent Insurance Agency that has served the Watertown Area since 1903. Mission Statement To deliver quality insurance products to consumers with a high level of service, and to earn lasting relationships built on a foundation of honesty, integrity and trust. Our Commitment Our insurance agency will strive to provide a level of service that is better than our competition. Though price will always be an issue, it is my firm belief that individuals still place a high value on service and recognize the need for professional, competent insurance advice and quality insurance products. As the President of A. T. Matthews & Dier, it is my objective to provide our customers with the best of both.