Josh Mailman

Investor & Senior Advisor

Managing Director of Serious Change LP, a $75M sole LP impact investment vehicle started in 2006; Co-founder of the Threshold Foundation (1981), Social Venture Network (1987), and Business for Social Responsibility (1992). Board member of 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; Founding trustee of the Sigrid Rausing Trust U.K., and initiator of Synergos Middle East Social Innovators Program.

Mark Miles

Investor & Advisor

American inventor and entrepreneur with over 100 technical patents filed; founded Etalon Inc., Iridigm Display Corporation, and HotEarth Enterprise. Iridigm was acquired by Qualcomm for $170M in 2004 and rebranded as Qualcomm Mems Technology (QMT); Latest research and development work includes providing direction, technical leadership and support for R&D in Solar Thermal Cogeneration; Board member of Green City Force, an AmeriCorps program that engages young people from low income backgrounds in national service related to the environment.

Heidi Krauel Patel is an Advisor to Impact America Fund.

Heidi Krauel Patel


Lecturer on Institutional Impact Investing at the Stanford University Graduate School of Business. Former President and Head of Communities Investing for New Island Capital, an institutional-scale and 100% mission-focused investment advisor to a single ultra high network family (2010-2015). Acumen Fund Fellow with D.light Design India (2008-9) and Director at Pacific Community Ventures (2003-2008), serving businesses creating quality jobs in California’s low-income communities. Founding member of AOL Time Warner Ventures and Investment Banking analyst with Deutsche Bank and CSFB. AB from Princeton and an MBA from Stanford.

Charmaine McClarie is an Advisor to Impact America Fund.

Charmaine McClarie


Executive coach with 20+ years of experience working with C-suite leaders and their potential successors. She has worked with leaders in 27 industries across five continents, including top executives from Adobe Systems, Coca-Cola, DuPont, Humana, Johnson & Johnson, Starbucks, T-Mobile and others. Charmaine has been profiled in People, Forbes, Harvard Management Update, The London Times, and The New York Times. She is on the faculty at the University of Missouri Kansas City Bloch School of Management, EMBA program, and is a visiting lecturer at the Smith College Executive Education program.

Rick Larson


Senior Vice President and Director of Special Initiatives for Natural Capital Investment Fund, The Conservation Fund’s business lending arm that provides patient capital to triple-bottom-line natural resource-based businesses; Former Managing Director of SJF Ventures and National Director of REAL Enterprises, a nationwide entrepreneurship education program for rural youth and adults; Adjunct Professor at Columbia Business School and Duke University’s Fuqua School of Business, where he teaches courses in impact investing and financing social ventures.