William ‘Bill’ Thomas CID, Chairman of the Board William M. Thomas, known to his clients as “Bill,” began his career with TIS in 1965 just after graduating from the University of Tennessee with a degree in Banking and Insurance. Bill’s unrivaled work ethic, leadership, and business strategy helped grow TIS from just 3 employees to 150 employees strong today. With a passion for both insurance and people, Bill served as a multi-line insurance agent working with both businesses and individuals to provide all lines of insurance and risk management services.