Rettich knows that successfully building a small business is more craft and art than science. He coaches small business clients from almost every industry, and of almost every size, from 100,000 to over 10 million in revenues. He is a mentor, speaker, and contract instructor at the Peter B. Gustavson School of Business at the University of Victoria. He sits on community boards and supports community economic development as a facilitator and consultant. He is a volunteer with Junior Achievement Canada, educating high school students in the fundamentals of business and career development. At the 2013 BC Economic Summit, he participated as a moderator and speaker.