Sisterson & Co. LLP
In 1926, encouraged by a client impressed by his work, Douglas G. Sisterson opened his own accounting firm. The firm started with a clear philosophy - commit to excellence, the highest of ethics, and personal service in every engagement. Over the years, the firm has successfully adapted to changes in the world and in the industry. Mr. Sisterson's name is still on the door and his philosophy has been carried on through the years. Today, Sisterson is one of the largest independent and locally-owned certified public accounting and financial consulting firms in western Pennsylvania.