Our dedicated board consists of forward-thinking investors, nonprofit leaders, educators, and entrepreneurs—including several Echoing Green Fellows—with the insight and experience to help us in building an organization focused on the future while rooted securely in our history.


Dave Hodgson, General Atlantic



Dave Hodgson has been with General Atlantic for more than 30 years, having joined the firm in 1982. He worked to build the GA partnership and was foundational in developing our focus of identifying and assisting companies globally in all areas of their growth. He serves as a director of a number of public and private companies, including Hyperion Insurance Group, Pierpont Securities, TriNet and InsightExpress.

Dave is Co-Chairman of the board of Echoing Green, a provider of fellowship support for entrepreneurs that he helped found in 1987. He also serves as Chairman of the Boards of Trustees of Johns Hopkins Medicine, The Johns Hopkins Health System Corporation and The Johns Hopkins Hospital, and as a trustee of Johns Hopkins University; as Chairman of the Manhattan Theatre Club; and as a member of the Dartmouth College Board of Trustees.

Dave graduated summa cum laude from Dartmouth College in 1978, with an AB degree in Mathematics and Social Sciences. He is a member of Phi Beta Kappa and received the Kemeny Prize in computing at his alma mater. He earned an M.B.A. from the Stanford University Graduate School of Business in 1982.

Maya Ajmera



Maya Ajmera is the President and CEO of Society for Science & the Public (SSP) and Publisher of its award-winning magazine Science News and its family of media properties. Founded in 1921, SSP works to promote the understanding and appreciation of science and the vital role it plays in human advancement. It is best known for its world-class science competitions including the Intel Science Talent Search, Intel Science and Engineering Fair, and Broadcom MASTERS. Maya was a member of the Honors Group of the Westinghouse Science Talent Search now sponsored by Intel.

Maya is a 1993 Echoing Green Fellow. She founded and led for eighteen years The Global Fund for Children (GFC), a non-profit organization that invests in innovative, community-based organizations working with some of the world’s most vulnerable children and youth. Under Maya's 18 years of leadership, GFC grew from a seedling vision into one of the largest networks of grassroots organizations working on behalf of vulnerable children. To date, GFC has awarded more than $35 million to over 600 grassroots organizations in 80 countries, touching the lives of nearly 10 million children.

Maya is also an award winning children's book author of over twenty titles including Children from Australia to Zimbabwe, Faith, To Be a Kid and most recently Healthy Kids with over four million readers worldwide. She is the recipient of numerous leadership awards including the 2011 Henry Crown Fellowship at the Aspen Institute. Her work and life story have been profiled by such media outlets as CNN, The Oprah Winfrey Show, Financial Times, NPR, and many others.

Maya has held several academic appointments including the Sanford School of Public Policy at Duke University and the Paul H. Nitze School of Advanced International Studies at Johns Hopkins University. Maya is a trustee of the North Carolina School of Science and Mathematics, serves on the Board of Visitors of the Sanford School of Public Policy at Duke University and a board member of New Global Citizens and Kids in Need of Defense. Maya received a master's degree in public policy from the Sanford School of Public Policy at Duke University and a bachelor's degree in biology from Bryn Mawr College.

Marc Saiontz, American Securities



Marc Saiontz, managing director, has been with American Securities since 1996. Marc concentrates his investment efforts on the healthcare, industrial and service sectors. He is currently a director of Specialty Care, Unifrax and Unison Holdings. He also previously worked extensively on the firm's investments in NEP Broadcasting, Weasler Engineering, Xerium Technologies, CTB International and Anthony International.

Marc temporarily left American Securities to attend Stanford Graduate School of Business and during this time he worked overseas with a European-based telecommunications and infrastructure investment firm. He rejoined American Securities upon receiving his MBA. Earlier in his career, Marc was with Morgan Stanley Capital Partners where he focused on private equity investments.

Esther T. Benjamin, Laureate Education



Esther Benjamin is CEO for Africa Operations with Laureate Education, Inc., a global leader in providing access to high quality, innovative institutions of higher education. Previously, Esther served in the Obama Administration as Associate Director for Global Operations for the Peace Corps, responsible for overseeing programs in nearly 80 countries. Following the 2008 presidential elections, she served on the Obama-Biden Presidential Transition Team.

Esther worked at the International Youth Foundation (IYF) as chief financial officer, then as vice president for business development responsible for the development of global programs and partnerships in 75 countries. She was executive director for resource development at the International Partnership for Microbicides (IPM), a global non-profit biotechnology organization. In 1999, President Bill Clinton appointed Esther a White House Fellow. In this capacity, she served with Secretary of Labor Alexis Herman on international policies and programs. In 1994, she was appointed United Nations Humanitarian Affairs officer, responsible for coordinating humanitarian aid in Somalia. She worked with the World Bank History Project on the Brookings Institution’s 1997 publication entitled The World Bank: Its First Half Century. Esther worked in management consulting with Grant Thornton and with Arthur Andersen.

Esther is a fellow with the U.S.-Japan Foundation and the U.S.-Southern Africa Center for Leadership and Public Values. She participated in Asia Society’s Asia 21 Initiative and the Remarque Forum for young leaders in Europe and the United States. She holds two master’s degrees from American University in international affairs and applied economics. She is a trustee of North Central College, where she was a College Scholar and earned her bachelor’s degree in political science and English.

Steven P. Buffone, Gibson Dunn



Steven P. Buffone is a Partner in the New York office of Gibson Dunn. He serves as Co-Chair of the Firm's Corporate Transactions Practice Group and Energy and Infrastructure Practice Groups. He is a corporate transactional lawyer who has represented clients in mergers and acquisitions, public and private issuances of debt and equity securities, venture capital financings, corporate restructurings and bankruptcies and general corporate counseling.

Steve is a cum laude graduate of the Georgetown University School of Foreign Service and THE Cornell and Stanford Law Schools. He is a member of the New York and California bars and is active in firm management, having previously served as Co-Partner in Charge of the New York office and as a member of the firm's Executive Committee.

Steve is Chairman of the Board of Directors of Do Something.Org, a national charity that inspires and trains teenagers to be leaders in community service. He is also chairman of the Board of the National Crisis Text Line, which is making crisis support lines available to young people who prefer to text rather than call. Steve serves on the Board of Governors ofGeorgetown University, the Board of Visitors of the Georgetown University School of Foreign Service and as a member of Georgetown’s Campaign Executive Council. He is a former member of the Board of Visitors of Stanford Law School. He is on the Members Advisory Committee of Exclusive Resorts. A former member of the Sister City Commission of New York City, Steve is a member of the Council of Foreign Relations. Steve was recently honored for his pro bono and community service activities by receiving the Cornerstone Award from the Lawyers Alliance of New York, the Outstanding Citizen Award from Do Something and the Point of Light Award from the Points of Light Foundation.

Peter Campbell, Education Growth Partners



Peter is the Managing Partner and Founder of Education Growth Partners, a private equity firm dedicated solely to providing growth capital to proven, high potential education services companies that offer compelling solutions addressing the unmet needs in education. Peter has over 25 years experience successfully investing in, and helping drive the scaling of, high-growth education, media, and information services firms.

Guy de Chazal



Guy is former Managing Director of Morgan Stanley and President of Morgan Stanley Venture Partners (MSVP). He serves on the boards of Lionbridge Technologies (LIOX), Roam Technologies, Uhlig, and AMC, the Asset Management subsidiary of International Finance Corporation, and served on the board of the National Venture Capital Association (NVCA). In 2004 and 2005 he was an adjunct professor at Columbia Business School, teaching Venture Capital to second year MBA students. Prior to his twenty-two years at Morgan Stanley, he worked at Citicorp Venture Capital and, before that, McKinsey and Co. In the nonprofit sector, Guy serves on two boards; Echoing Green and Fountain House, a residential, service, and advocacy program for people living with mental illness. Guy has a BS in Engineering from Manchester University in the UK and an MBA from Harvard Business School. He is married to Kitty Choate and has two children, Justine and David.

Cheryl Dorsey, Echoing Green



An accomplished social entrepreneur with expertise in health care, labor issues and public policy, Cheryl Dorsey was named President of Echoing Green in May 2002. She is the first Echoing Green Fellow to lead the social venture fund, which has awarded over $36 million in start-up capital to nearly 600 social entrepreneurs worldwide since 1987. Read more.




Betsy Fader currently serves as Advisor for Strategy and New Programs at the Helmsley Charitable Trust. Prior to her current work, Ms. Fader served as Chief Program Officer at the Doris Duke Charitable Foundation where she assisted with strategic planning for the Foundation's program areas and properties, and oversaw the Foundation's grants program on Child Abuse Prevention, as well as the grants program of the Doris Duke Foundation for Islamic Art. Prior to her arrival to DDCF, Betsy was the Executive Director of Student Pugwash USA -- the "junior" arm of the Pugwash Conferences on Science and World Affairs (which in 1995 won the Nobel Prize for Peace). Betsy also worked as a legislative assistant in Washington, DC and as a Parliamentary Assistant in the House of Commons in London, where her work focused on alternative energy technology, biomedical research policy, higher education policy and ethics in research. Betsy holds a Master's degree in Education and Social Policy from Harvard University and a BA in Political Science from Vanderbilt University. She also serves on the board of Computers for Youth.




Marianne Gimon works as an independent consultant specialized in gender and international development. She worked with the UNICEF Syria Country Office on developing protection interventions for vulnerable adolescent Iraqis living in Syria. She previously worked for the Population Council, the Social Science Research Council, the United Nations Development Program and Equilibres et Populations. She taught English in Yantai, China as a Worldteachvolunteer. Marianne is a family council member of the Flora Family Foundation, a board member of the Hewlett Foundation, and a board member of Echoing Green. She earned her Bachelor of Arts at Brown University and her Master's Degree from the School of International and Public Affairs of Columbia University.




David Issroff is a private investor residing in New York with his wife, Lisa, and three children. Born in South Africa, David was educated in the United Kingdom and the United States, where he graduated from Wesleyan University. Prior to moving to NYC in 2006, David was a Partner with Glencore International AG of Switzerland, where he was responsible for the global Ferro Alloys and Nickel Division of one of the world’s largest suppliers of a wide range of commodities to industrial consumers. In this capacity, David served as a non-executive Director of various public corporations in South Africa, Switzerland and the U.K., including Xstrata Plc from 2002-2006. Together with his wife Lisa, David founded the Issroff Family Foundation, whose mission is to provide support for youth in Southern Africa, Israel and NYC in a tangible and sustainable way that will give them a basis for uplifting their lives and realizing their potential. David serves on the boards of various private portfolio investment companies and several non-profit organizations.

Andrew Kassoy, B Lab



B Lab is a nonprofit organization that is building a global movement to redefine success in business so that all companies compete to be best for the world.  B Lab is driving systemic change by creating the norms and institutions that allow companies to use their businesses as a force for good. This includes: 1) shining a spotlight on the leaders of this movement, the Certified B Corporations; 2) celebrating and rewarding leaders through its Best for the World and B the Change campaigns; 3) helping all companies Measure What Matters using its free B Impact Assessment; 4) driving investment capital to businesses and setting the standard for impact measurement, benchmarking, improvement, and reporting using its B Analytics platform and GIIRS ratings; 5) creating a new corporate form, the Benefit Corporation, that expands fiduciary duty for companies to consider the interests of their stakeholders, not just their shareholders; and 6) identifying policy opportunities to scale the B Corp movement. Certified B Corporations meet higher standards of social and environmental performance, transparency, and legal accountability. As of October 2013, there are more than 850 Certified B Corporations from over sixty industries and twenty-eight countries; twenty states, including Delaware, have enacted benefit corporation legislation and over 400 companies have adopted this new corporate form; more than 15,000 businesses are measuring what matters using B Lab’s B Impact Assessment; and more than 100 investors and fund managers representing over $6 billion in assets across thirty countries are using B Analytics and GIIRS ratings.

Prior to co-founding B Lab, Andrew spent sixteen years in the private equity business; as a Partner at MSD Real Estate Capital, an affiliate of MSD Capital, the $12 billion investment vehicle for Michael Dell, and as Managing Director in Credit Suisse First Boston's Private Equity Department, a founding partner of DLJ Real Estate Capital Partners, and President of its international business.

He is a Board Member of Echoing Green, an Advisor to the NYU Reynolds Fellows Program, and a member of the U.S. Working Group of the G8 Social Impact Investing Task Force. He is a former board member of the Freelancers Union. He was raised in Boulder, Colorado and graduated with Distinction from Stanford University where he was a Truman Scholar and President's Award winner. He is a Henry Crown Fellow at the Aspen Institute. Andrew lives in New York City with his wife, Margot Brandenburg, and two sons, the Emperor Maximilian (nine years) and the Boy King Jedidiah (seven years).

Dr. Marie Kelly



Dr. Marie Kelly was most recently a Partner with CTPartners Board Consultants, a premier practice committed to performance, quality and results. Marie collaborated closely with clients to build effective boards, recruiting leadership talent dedicated to outstanding governance.

Marie’s career includes thirteen years with Merrill Lynch and Company as Managing Director of Global Institutional Marketing for Fixed Income Products. She also led the Firm’s Diversity Initiative. Previously, she was with McKinsey and Company for seven years as senior engagement manager where she served U.S. and overseas multinational clients with an emphasis on global strategy development, organization design, and financial management. Her clients included industry leaders in financial services, healthcare, technology, transportation, consumer products, and manufacturing.

After graduating from The University of Kansas with a Bachelor's degree in Mathematics, Marie earned a Master’s degree in Finance and a Doctorate in International Business from The Pennsylvania State University. At Penn State she taught International Business and conducted original research on the U.S. banking system and on global investment decision making. Her book “Foreign Investment Evaluation Practices of U.S. Multinational Corporations” and subsequent articles on global decision making have become source references for international business curriculums in colleges and universities around the world. She is based in the firm’s New York headquarter.

Marie is also a member of Echoing Green Development Committee. Believing deeply in the power of education to transform lives, Marie has devoted herself to Boards in this arena including: Prep for PrepThe Collegiate SchoolThe Spence School, Trinity College Board of Visitors at Duke University, and the Dean's Council at Weill Cornell Medical College.

Josh Mailman, Social Venture Network



Josh Mailman founded Social Venture Network (SVN) with Wayne Silby of Calvert Group in 1987. He also started the Threshold Foundation (1981) and Business for Social Responsibility (1992).  Today, he continues to be an active investor in the most game-changing for-profit and nonprofit enterprises he can find. He believes we must assist in a reimagining of how finance can advance positive societal change. 

Mr. Mailman's nonprofit board activities currently include Echoing Green, the New Africa Center at 110th Street, Mailman School of Public Health at Columbia University, the Fund for Global Human Rights, and the Calvert Foundation. He is a founding trustee of the Sigrid Rausing Trust U.K., and initiator of Synergos Middle East Social Innovators Program. He is also Managing Director of Serious Change L.P., a $70M sole L.P. impact investment vehicle started in 2006. Mr. Mailman first became acquainted with Echoing Green through his friends Van Jones and Gillian Caldwell, who were 1994 and 1996 Echoing Green Fellows, respectively.

Carter McClelland, Union Square Advisors



Carter McClelland is the Chairman of, and a Partner at, Union Square Advisors. Prior to joining Union Square Advisors, Mr. McClelland most recently served as President of Bank of America New York Market and Chairman of Banc of America Securities. Previously he was President and Chief Executive Officer and member of the board of directors of Deutsche Bank North America. Mr. McClelland's Wall Street career spans more than 30 years, including 21 years at Morgan Stanley, where he was Chief Administrative Officer and a member of the firm’s operating committee. He holds a B.S. in Aeronautical Engineering and an MBA from Stanford University.

Ajay Nagpal, Millenium Management LLC



A veteran financial executive, Ajay Nagpal brings more than two decades of experience to his role as Chief Operating Office of Millennium Management overseeing various business areas of Millennium’s global activities. Millennium is a global investment management firm with more than 1,300 employees, over $20 billion in assets under management, and offices in the United States, Europe, and Asia. 

Prior to joining Millennium, Ajay Nagpal was the head of the Prime Services Division for Barclays, having transitioned to Barclays as part of the acquisition of Lehman Brothers U.S. businesses. In this position, he oversaw businesses such as fixed-income financing, equity-related financing and prime brokerage, futures clearing and execution, and OTC derivatives clearing. 

Ajay Nagpal was a Managing Director with Lehman Brothers from 2001-2008. He began as Head of Liquid Market Sales in Fixed Income. In 2005, he transitioned to the role of Global Head of Equities Sales. Mr. Nagpal began his career at JP Morgan in 1992 and rose to Managing Director responsible for Municipal Derivatives before transitioning to Head of Fixed Income Derivatives Marketing for Financial Institutions. 

Ajay Nagpal earned a bachelor’s degree in International Relations and South Asian studies at Brown University before going on to complete a Masters of Public Policy from Harvard University’s Kennedy School of Government. A proud father of four, Mr. Nagpal has been married to his wife, Debbie, for 19 years.

Diana Propper de Callejon, Expansion Capital Partners



Diana has more than twenty years of experience investing in and building sustainability and values-led companies. Diana is a Managing Director at Cranemere, a holding company that takes long term positions in privately held, middle-market companies without a view of selling them. Cranemere's indefinite ownership horizon allows its companies to continue their growth and development while strengthening the culture and values which are key to their success. Diana leads Cranemere’s investment activities focused on sustainability market leaders and values-led companies across diverse sectors including energy, consumer products, green building, food and healthy living.

Diana's interests in harnessing private equity and markets to solve environmental and social problems were catalyzed during her 1990 Echoing Green fellowship during which she was based in the Brazilian Amazon providing loans to small businesses that harvested and exported non-timber forest products such as nuts, fruits and oils. Customers included Ben & Jerry's and Body Shop. The investments were designed to build a local economy in the Amazon that provided an alternative to logging and livestock development that depended on large scale deforestation.

Diana is a frequent speaker on sustainable investing at conferences (e.g. The Family Office Forum, Milken Institute, Wall Street Green Trading Summit) and has also written on the subject, most recently contributing the chapter, “Integrated Value – A New Private Equity Model for Driving Value Creation” for Private Equity International’s book, The Guide to Responsible Investment. Diana holds a BA, summa cum laude, from Duke University, and an MBA from the Harvard Business School.

Adam Shapiro, East Rock Capital



Adam Shapiro is a Partner and Co-Founder of East Rock Capital, LLC, an investment management firm that manages long-duration investment pools on behalf of a small number of families. Previously, he served as a Vice President in the Special Situations Group at Goldman Sachs. Prior to Goldman Sachs, he worked in the Private Equity and Mezzanine Finance Groups at Darby Overseas Investments, Ltd., an emerging markets investment fund founded by former Treasury Secretary Nicholas Brady. Adam received an MBA from Columbia University, was a Fulbright Scholar in Argentina, and graduated from Yale with a B.A. in Ethics, Politics, and Economics.

Karen Sherwood, Imagine Entertainment



Karen Kehela Sherwood is an independent producer pursuing a wide range of projects in movies and television. After Sherwood completed her bachelor’s degree in communication studies at UCLA, she joined Imagine Entertainment as Brian Grazer’s assistant and quickly rose up the ranks. She was appointed President of Production in 1992 at the age of 29; five years later, she became Co-Chairman of Imagine Films. As Co-Chairman, Sherwood worked closely with partners Brian Grazer and Ron Howard in the development and production of Imagine Entertainment’s motion picture slate. She also guided the company’s development staff in their tracking, acquiring and shepherding of all Imagine film projects from concept through to their theatrical releases.

In 2001, Sherwood executive produced A Beautiful Mind, directed by Ron Howard and starring Russell Crowe and Jennifer Connelly. The film won four Academy Awards including Best Picture and Best Director. She served as Producer alongside Brian Grazer on Blue Crush, and as Executive Producer on the tense drama Inside Man and the Academy Award nominated Frost/Nixon. Sherwood also contributed to the summer blockbuster Angels & Demons, directed by Ron Howard and starring Tom Hanks, the Ridley Scott directed Robin Hood and American Gangster, and Tower Heist starring Ben Stiller and Eddie Murphy.

Sherwood recently helmed the Imagine Writers Lab from 2010-2012. The Lab consisted of nine writers working as both creative executives and staff writers, adapting acquired and original material for Imagine Entertainment, financed by Reliance Big Entertainment. She is now working to get those screenplays produced. One of them, THE GOOD LIE, was made in 2013 starring Reese Witherspoon about the Lost Boys of Sudan and a group of them who come to America to start a new life. THE GOOD LIE is set to release in September 2014.

Jerome Vascellaro, TPG



Jerome Vascellaro is a partner of TPG, the firm’s Chief Operating Officer and a member of the firm’s Management Committee. Prior to joining TPG in 2006, Mr. Vascellaro was a senior Director at McKinsey & Company. During his 28 years at McKinsey & Company, he served clients in a range of industries in the United States and Europe to improve the effectiveness of their organizations, develop strategies for entering new businesses and markets, and turn around troubled businesses. In addition, Mr. Vascellaro held several leadership and management positions at McKinsey & Company where he was responsible for worldwide activities, including oversight of critical personnel activities and the partner personnel processes. He has a B.S. in Engineering from Brown University, where he graduated with highest honors, and an M.B.A. from Harvard Business School, where he graduated as a Baker Scholar. Mr. Vascellaro is Vice Chancellor of the Board of Trustees and Fellows of Brown University and co-chairs Brown’s Comprehensive Campaign. He is also on the board of Echoing Green Foundation for social entrepreneurship and is a Trustee of the California Academy of Sciences.

Robbert Vorhoff, General Atlantic



Robbert Vorhoff is a Managing Director at General Atlantic, a global growth equity firm, where he has worked since 2003.  Based in New York, Mr. Vorhoff is head of General Atlantic's global Healthcare sector.

Mr. Vorhoff currently serves as a member of the Board of Directors for MedExpress Urgent Care. Previous portfolio responsibilities include Align Networks, Grupo Qualicorp in Brazil, RiskMetrics Group and NYSE Euronext. Prior to joining General Atlantic, Mr. Vorhoff was with Greenhill Capital Partners, where he focused on investments in the financial services, energy and education sectors.  He began his career in the Mergers & Acquisitions and Restructuring advisory group of Greenhill & Co.

Mr. Vorhoff received a B.S. in Commerce with a concentration in Finance from the McIntire School of Commerce at the University of Virginia. While at UVA, he was awarded the William M. Shermet Scholarship by the McIntire faculty on the basis of academic performance, character and leadership. Mr. Vorhoff remains actively involved with the University of Virginia as a member of the McIntire School of Commerce Advisory Board. He is also involved with a number of non-profit organizations in the New York community, including serving on the board of directors of Echoing Green.

Daniel Weiss



Daniel (Dan) Weiss was formerly Publisher at Large at St. Martin's Press. He has worked for over thirty-five years in the fields of communications, publishing and entertainment, producing books, magazines, television and digital media. A graduate of NYU's School of the Arts in Film and Television, Dan began his career in educational television, making short animated films for Sesame Street, documentaries for the government and public service organizations, and political commercials. In the early seventies, he transitioned into book publishing with positions at Golden Books, Scholastic and Simon and Schuster, eventually forming Daniel Weiss Associates, Inc. (DWAI), in 1980, an independent producer of books, television and merchandise for children and adult audiences. Dan sold DWAI in 2000 to AlloyOnline, a teen marketing company. In 2001, Dan initiated and closed the transaction wherein SparkNotes.com, a start-up online publisher, was acquired by Barnes & Noble, Inc. Until 2009, Dan was President and Publisher of Spark Publishing, including Quamut.com and Flash Books, units of Barnes & Noble. Dan is on the boards of Charity Navigator, the leading online charity evaluator, and Figment.com, an online community for young writers.

Larry Wieseneck



Larry Wieseneck stepped down from Barclays in June 2014 as Head of Global Distribution and Structuring. Prior to this he served as the Chief Strategy Officer for Corporate and Investment Banking at Barclays. Mr. Wieseneck was also a member of the Corporate and Investment Banking Executive Committee. Prior to this role, Mr. Wieseneck was Head of Global Finance and Risk Solutions, a position he held since September 2008 when Barclays acquired the North American assets of Lehman Brothers. (Mr. Wieseneck was with Lehman Brothers for 11 years.) Mr. Wieseneck is a member of the Board of Overseers of the School of Social Policy & Practice at the University of Pennsylvania and was formerly a board member of New Jersey SEEDS. He holds a BS in Economics, Finance & Political Science from The Wharton School and an MBA from NYU’s Stern School of Business.