COMPANY HISTORY - Clarence Stevens, founder of our firm located in Oshawa, Ontario, has over 35 years experience providing accounting, tax and business advisory services to clients in marketing, restaurant, retail, manufacturing, construction, real estate and the service industry. When it comes to bookkeeping, tax preparation and all other accounting-related services in the Durham Region, Clarence Stevens Accounting & Tax Services is an undisputed leader, helping businesses and individuals understand their financial standing and maximize their growth. If you are looking for a dynamic, ethical Accounting Firm, get in touch with us today.