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The faculty at Green Mountain College is very experienced both professionally and with teaching sustainable business online. The combination of the small class size, experienced faculty, and established online teaching of Green Mountain College guarantee that students involved in the Sustainable MBA program receive the best program possible. Students are also able to connect with professionals involved in sustainability due to the backgrounds and connections of their instructors.


Karen Martinsen

Karen Martinsen Fleming
MBA Program Director, Associate Professor of Business;
MBA, Harvard University; AB, Dartmouth College

Karen Martinsen Fleming is an Associate Professor and Director of the Sustainable MBA Program at Green Mountain College.

Prior to joining Green Mountain College, Karen held executive positions at her own sustainable business, Seventh Generation and Stonyfield Farm as well as management positions at traditional consumer packaged goods companies including Procter & Gamble and Ocean Spray Cranberries. As Senior Vice President of Marketing at Seventh Generation, she crafted the growth strategy and led the relaunch of the brand, new product development, and the company’s first national advertising campaign. As Vice President of Marketing at Stonyfield Farm, Inc., she developed and launched yobaby!, one of the most successful new products in Stonyfield Farm history, and developed the company’s first ever major advertising campaign.

Karen also consults as a green branding expert to companies across a range of industries. She is adjunct marketing and branding instructor and member of board of advisors for the Business Center at the University of Vermont School of Business, was a charter member of the Organic Trade Association Marketing Committee, and has spoken at the Harvard University School of Business, University of Chicago School of Business, Vermont Women’s Business Owner Network, Natural Products Expo West, and other venues.



Steven Letendre

Steven Letendre
Associate Professor of Management & Environmental Studies;
Ph.D., University of Delaware

Prof. Steve Letendre’s research involves the economic analysis of emerging environmental technologies and the development of policies and regulations to promote a sustainable energy future. He has been researching and writing in the areas of sustainable energy and alternative transportation for over ten years. Steve has been involved with a small group of researchers investigating the technical requirements and benefits of integrating battery and hybrid electric vehicles with the utility grid, referred to as vehicle to grid (V2G). A large study of the V2G potential in California was funded by the California Air Resources Board – the California government agency responsible for air quality issues.

In addition, Steve has collaborated with colleagues from the State University of New York’s Atmospheric Research Center and the U.S. Department of Energy’s National Renewable Energy Laboratory to investigate the value of solar energy in various niche markets. He is also interested in the role of the non-profit sector in promoting sustainable energy. He sits on the board of SolarFest (, a small, local nonprofit providing energy education through the performing arts. He also is an active member of the Northeast Sustainable Energy Association, the American Solar Energy Society, and Renewable Energy Vermont.



Matthew Mayberry

Matthew Mayberry
Associate Professor of Business;
M.Ed. University of Vermont; M.B.A. Stanford University; Ph.D. Massachusetts Institute of Technology; B.A. University of California, San Diego

Since 1991, when he transitioned from experimental physics to business, Dr. Matt Mayberry has consulted, taught and facilitated groups around the world. He has over 25 years of computer modeling experience and has developed business simulations for applications in strategy, operational improvement and leadership development. His industry experience includes hospitality, health care, high tech, transportation, telecommunications, chemicals, pulp and paper, energy, pharmaceuticals, restaurants, consumer goods, retail, education and the public sector.
Dr. Mayberry’s most recent work with organizations has focused on leadership and organizational transformation. Applying concepts from systems theory, he works with leaders to help them see their business from new perspectives, understand the causes of persistent patterns of results, design high-leverage change interventions and learn from experimentation. In his spare time, Dr. Mayberry enjoys a variety of outdoor activities and occasionally he’ll arrange a piece of popular music (e.g. Pink Floyd, Coldplay, etc.) for his wife, a professional harpist.


Jacob Park

Jacob Park
Associate Professor of Business & Public Policy;
M.S., Massachusetts Institute of Technology

Prof. Jacob Park, who has taught at Green Mountain College since 2002, specializes in the teaching and research of global environment and business strategy, corporate social responsibility, business ethics, and community-based entrepreneurship and innovation. A former financial journalist with Fortune Magazine, global environmental policy advisor to Japan’s Ministry of Economy, Trade and Industry, and a United Nations research specialist on Asian environmental and urban development issues, he worked as a senior research consultant and Japanese and Asian equity specialist in the Governance and Socially Responsibility Investment Group of ISIS Asset Management, a London-based investment company.
An editorial/review board member of the Journal of Corporate Citizenship, Business Strategy and the Environment and the Greener Management International, his most recent book is the Ecology of the New Economy: Sustainable Transformation of Global Information Technology, Communication, and Electronics Industries (Greenleaf Publishing, 2002). He is currently working on two edited books, Sustainable Global Governance and Ecological Modernization & Asia-Pacific.



Bill Prado

Bill Prado
Associate Professor of Management; Director, Business Program;

Dr. Prado has over 15 years of practitioner experience, generally in global business and specifically in cross-border risk management and financing (including asset-based, credit-secured, sales, and export financing). The experience he brings is based on conducting business throughout the world, including in Spanish or French when needed. His background in structured finance, risk management, trade/export financing, tax-based leasing and commercial banking began with five years as an international banker, financing the exports of Fortune 1000 companies. Dr. Prado also worked for manufacturers for more than ten years, first financing the international sales of large communication systems, and later financing aircraft and rail product sales.

Soon after being invited to join Green Mountain College’s full-time faculty in 2004, Dr. Prado became a key team member in the development and implementation of Green Mountain College’s M.B.A. in Sustainable Business. That experience sparked Dr. Prado’s current interest in the development of sustainable business practices that result in competitive advantage for businesses — and in the role of business education in promoting sustainable business success.



Spence Putnam

Spence Putnam
Adjunct Professor of Business;
MEd, University of Vermont; MAT, University of Massachusetts; BA, Swarthmore College

From 2002 to April 2007, Prof. Spence Putnam was the Executive Director to Vermont Businesses for Social Responsibility, the largest and oldest organization of its kind in the country, helping the association grow to over 650 member businesses accounting for $4 billion in annual sales. Prior to that, he served on the board of VBSR for five years while working as General Manager of Danforth Pewterers in Middlebury for two years. Before Danforth Pewterers he was Vice President of Operations at the Vermont Teddy Bear Company for twelve years, where he helped lead the company through its transition from a manufacture company to a specialized gift company. He led the Cooperative Education Program at the University of Vermont for seven years, and has been active in local and civic affairs, including service as a member of the boards of the United Way, CommunityAction, Agency on Aging, The Vermont Sustainable Jobs Fund, and the UVM College of Agriculture Advisory Board.