Sims and Company CPAs Professional Corporation is a dynamic mid-sized public accounting firm located near Mount Pleasant and Eglinton in Toronto. Sims has been in business for over 40 years and provides various services such as the preparation of financial statements, business plans, and forecasts. It also offers clients tax and estate planning as well as assistance with selling and buying a business. Along with an extensive network of specialist professionals, Sims & Company has built a substantial practice based on big firm expertise but with small firm personal service.