Almost 30 years ago Clare and Kathy Tannas started up a consulting company to do vegetation inventories. This company quickly grew in to a native seed production facility and environmental consulting company. By 2011 ESRS had grown into one of the largest native plant suppliers in Alberta. Additionally ESRS continued to expand its educational program teaching over 60 people a year in annual plant identification courses and continuing to increase the number of environmental consulting services available through the company. To continue this growth it was decided that a new dedicated consulting company was needed and so in November 2011 Tannas Conservation Services Ltd. was born and true to the family tradition, remains a family run company led by Steven and Eileen Tannas.