Our Team


Jeffrey Hollender – CEO & Co-founder, ASBC

Jeffrey Hollender is CEO, co-founder and Board Chair of the American Sustainable Business Council, which through its national member network represents more than 250,000 businesses in a wide range of industries. He was co-founder and CEO of Seventh Generation, which he built into a leading natural product brand known for its authenticity, transparency,


David Levine
Co-founder and President

David is the co-founder and president of the American Sustainable Business Council. He has worked as a social entrepreneur for over 30 years focusing on the development of whole systems solutions for a more sustainable society through building strategic partnerships and broad stakeholders initiatives. Previously, he was the founding


Tymika Davis
ASBC Administration

Tymika Davis is a finance professional functioning as the organization’s ASBC Administration. She has a strong background in Legal, Finance and Marketing. Tymika has held a variety of business analyst positions at Federal Agencies and for the private sector.  She holds a Masters in Business Administration (MBA) that provides theoretical and practical training for business and a BA in Business Management


Colton Fagundes
Policy Manager

Colton Fagundes comes from a background in both environmental policy and the natural products industry. He has a Masters of Global Environmental Policy from American University and has worked extensively on issues of sustainability and agricultural policy for multiple organizations. Prior to that, he had been working on and


Kathleen Hutton
Director, Digital Communications

Kathleen has over 16 years of non-profit experience working for environmental and university institutions. She has held various analytical, technical, and stewardship positions within development, communications, and marketing departments. Before joining ASBC, Kathleen was the Website and Social Media Senior Manager for Manomet


Thomas Oppel
Executive Vice President, ASBC; Former Chief of Staff, Secretary of the U.S. Navy

Thomas Oppel has more than three decades of experience in management, communications, policy and political campaigns.

From 2009 to 2017, he served as Chief of Staff to the 75th Secretary of the United States Navy, Ray Mabus, responsible for overseeing the development, execution and communication of the Secretary’s policies, goals and objectives throughout the Navy and Marine Corps, the Pentagon, the federal


Mary Wynn Ryan
Director of Marketing Communications

Mary Wynn Ryan is a hands-on marketing communications executive and award-winning editor, writer, and creative director with extensive experience in business associations, design/furnishings/building products, real estate/facilities and professional services. She has provided strategic planning, marketing communications and custom editorial for corporate and membership organizations of all sizes.


Christian Sanchez
Policy Associate

Christian Sanchez is a social science researcher with experience in multilateral, non-profit and governmental organizations. As a consultant for prestigious institutions such as UN – Migrations and Colombia’s Attorney General, he has been able to document human rights violations against isolated communities that experienced the consequences of prolonged armed conflicts. With a background in political science and international relations, he is also interested in broader fields such as sustainability and policy making.


Ali-Reza Vahabzadeh
Vice President of Memberships & Chief of Staff to CEO

Ali-Reza “A.R.” Vahabzadeh is a solutions-geared organizational development professional with strong experience in relationship management and marketing. He has worked in business development and investor relations roles for companies such as Morgan Stanley, Citigroup and J.P. Morgan Chase in the U.S., Europe and Middle East.