Formerly an associate of Fujitsu Consulting, David was a Fujitsu Consulting Fellow and a member of Fujitsu's Global Strategic Consulting Council. He has consulted to a number of Canada's largest corporations, and five provincial governments. He has worked internationally on assignments in the United States, Europe, Eastern Europe and South America.

A member of the Professional Writers Association of Canada, David monitors trends in business and technology. He has written columns for Computing Canada and GIS World, and was editor of GIS World Report/Canada. His articles have appeared in Computerworld, UniForum Monthly, Government Computer News and The Globe and Mail. He has contributed to three books.

David is a member of the World Future Society; the Foresight Network; the Futures Education and Research Network; the Alberta-based futures organization, the Alliance for Capitalizing on Change; and the advisory board of the Accelerating Studies Foundation, based in Mountain View, California.

A long-time business strategist and university-trained ecologist, David has explored the synergies between these two disciplines since the mid-1980s. He coined the term 'enterprise ecology' in 1988 to describe the application of ecological principles to competition, innovation, and strategy in business.