Sustainable Research Group (SRG) was created as a Limited Liability Company (LLC) in January of 2001 and reorganized with its present members in 2002.


William A. Stough, Chief Executive Officer, has over 30 years experience in providing technical assistance in the fields of environmentally sustainable business initiatives, industrial ecology, pollution prevention and ISO 14001 environmental management systems. Mr. Stough is the founder and past president of the West Michigan Sustainable Business Forum, and has helped organize regional sustainable business networks in Michigan, North Carolina, Illinois, Indiana and Alabama. He has served as a business sustainability advisor to EPA’s Green Supplier Network, the Business and Institutional Furniture Makers Association, the Design Center for the Environment, and the City of Grand Rapids, Michigan.


Stough worked as an ANSI-RAB registered ISO 14001 Environmental Management System Auditor and was the technical Manager for the development of the ANSI/BIFMA e3 Sustainable Product Standard. Mr. Stough also served as president of the board of directors for the Center for Environmental Study, the West Michigan Environmental Action Council, the Land Conservancy of West Michigan, the Michigan Association of Environmental Professionals, and the Green Manufacturer Network. Bill is a recipient of the Michigan Sustainable Business Forum’s 2002 Individual Achievement Award and was nominated for Lawrence Technological University’s Business Innovator of the Year Award in 2009. Bill can be reached at: bstough@sustainableresearchgroup.com


Thomas Fehsenfeld, PhD, Chief Financial Officer, is President of Crystal Flash, a family owned fuels distribution and resource recovery company. It serves residential, commercial and industrial customers throughout Michigan with sales of approximately $250 million per year. Crystal Flash is part of The Heritage Group, headquartered in Indianapolis, Indiana. The Heritage Group is a diversified family of companies involved in asphalt production, construction, environmental remediation, petroleum distribution, petroleum refining, and stone and aggregate production.


Fehsenfeld is widely recognized in the business community as an environmental leader by being an early advocate of the strategic value of sustainability. He was a founding member of the West Michigan Sustainable Business Forum in 1994, and is the recipient of numerous awards for his contributions in such areas as used oil recycling, water quality and sustainable business practices. Fehsenfeld was a partner in the company that built the first commercial wind powered generators in the State at Mackinaw City, Michigan. He is a past president of the board of directors of the West Michigan Sustainable Business Forum.