Our Business, Is Growing Yours! For over 70 years our firm has been providing accounting services to individuals, businesses, non-profits and municipalities throughout the greater Houston area. From our office we have provided services to individuals and companies around the globe. We have been there for generations of managers and leaderships. Our services have helped companies all of sizes grow to become larger and more successful organizations. In this era when employee loyalty lasts only a couple of years you can be sure that Doran & Johnston will be here, like we have been for over 70 years.