MIINT team

Brian Trelstad, Partner, Bridges Fund Management

Brian Trelstad is a Partner at Bridges Ventures. He has over 10 years of impact investing experience, having served until 2012 as the Chief Investment Officer of Acumen Fund, where he oversaw $55M of investments into companies that were delivering health, water, energy, and agriculture services to economic base of the pyramid in South Asia and Sub-Saharan Africa. Brian was also a co-founding board member of the Aspen Network of Development Entrepreneurs (ANDE) and was one of the principal architects of impact management software tool, Pulse, and the Impact Reporting and Investment Standards (IRIS).

Brian Walsh, Head of Corporate Impact, Liquidnet

Brian Walsh oversees corporate impact for Liquidnet, a New York-based financial services company that uses technology and a trusted global network to make capital markets more efficient. As executive director of Liquidnet For Good, Brian is responsible for using the resources of Liquidnet to have a positive impact in the world. Liquidnet provides its employees with the inspiration and the opportunity to give back through local programs in the communities where the company has operations and through a groundbreaking partnership with the Agahozo-Shalom Youth Village (ASYV), an innovative home, community, and high school for orphans in Rwanda. Liquidnet is also focused on leveraging its expertise, core strengths, and knack for innovation to help make the work of the social sector more effective; and works to accelerate the practice of impact investing through programs and partnerships that build the capacity of this emerging field.

Sherryl Kuhlman, Managing Director, Wharton Social Impact Initiative

Sherryl leads the Wharton Social Impact Initiative at the University of Pennsylvania’s Wharton School. Drawing on “business strategies for a better world,” Sherryl is strengthening the impact investing ecosystem, with a specific focus on impact assessment and innovative finance.

Kuhlman approaches her role with a blend of nonprofit and academic experience, informed by more than 10 years of involvement in social impact management, partnership development, outcomes measurement and strategy. She joined the Wharton Social Impact Initiative in October 2010, and has a Ph.D, in Ethics and an M.B.A. from the Wharton School.


Jacob Gray, Managing Director, Threshold Group; Senior Fellow, Wharton Social Impact Initiative

With more than 20 years in the impact investing field, Gray is a seasoned venture capital impact investor, business developer and thought leader, and a founding member of much of the Greater Philadelphia region’s impact ecosystem. He joins Threshold Group from his role as Senior Director of the Wharton Social Impact Initiative, where he led the establishment of Wharton’s role as a clear leader among peer institutions in the impact investing field. He led the growth of the Wharton Impact Investing Partners to its prominence as the largest and most active student-run impact investment VC fund among peer institutions.

In partnership with founder Bridges Ventures, Gray co-developed the MBA Impact Investing Network and Training (MIINT) into the pre-eminent experiential learning platform for impact investing. Last year MIINT trained 620 students from 25 of the world’s top business and policy schools.

Gray also helped develop Wharton’s prominence as an impact investing thought leader. He was instrumental in the project that led to the landmark Wharton research report, Great Expectations: Financial Performance and Mission Preservation in Impact Investing, the industry’s first rigorous, independent evaluation of impact investing private equity financial performance, credited with helping to dispel the myth that impact and financial performance may be negatively correlated. 

Joanne Gan, Fund Manager, New Initiatives Fund, DeutscheBank

Joanne is currently a Fund Manager at DeutscheBank’s New Initiatives Fund. She was previously an Associate at Bridges on the US team.  She joined Bridges in 2013 from Kiva where she led partnerships with high impact social businesses and microfinance institutions in the Asia-Pacific region as Portfolio Manager.  Prior to Kiva, Joanne was an Assistant Vice President in the Credit Research team at Barclays Capital.  She spent four years covering the high grade utilities, retail, and consumer sectors at Barclays and Lehman Brothers. Joanne holds a MS in Management Science & Engineering and a BA in Economics and International Relations from Stanford University.


Jennifer Signori, Senior Vice President of ESG and Impact Investing, Neuberger Berman

Jennifer Signori is Senior Vice President of ESG and Impact Investing at Neuberger Berman, where she is responsible for integrating environmental, social, and governance across asset classes and developing new investment strategies. Jennifer has over ten years of experience in impact investing and financial services. Previously, Jennifer was a Director at Bridges Fund Management, where she led the impact management of U.S. growth equity and real estate private equity investments, in addition to driving strategic initiatives and supporting industry field building globally. She began her career in investment banking at J.P. Morgan, where she originated and structured syndicated leveraged loans in the real estate and hospitality sector and public finance bonds in the governmental, transportation, and energy sectors, working on over $18 billion in transactions. Jennifer also worked at Next Street, where she led advisory engagements with a focus on impact investing and community development finance, and while pursuing her MBA, at Imprint Capital, an impact investing advisory firm, where she conducted investment analysis on private and public debt and equity opportunities.

Jennifer received a B.S. of Foreign Service in International Economics from Georgetown University and an MBA in Finance and Entrepreneurial Management from The Wharton School at the University of Pennsylvania, where she received the Wharton Lauder Fellowship.


Tasha Seitz, Chief Investment Officer, Impact Engine

Tasha Seitz is the Chief Investment Officer for Impact Engine, a venture fund that invests financial and human capital in early-stage, for-profit technology businesses that are improving education, health, economic empowerment, and resource efficiency. Tasha has two decades of venture capital investment experience as a partner with JK&B Capital, a technology venture capital firm based in Chicago with over a billion dollars under management.  As a partner, she has been responsible for identifying, evaluating and making investments in early stage start-up software companies, serving on the board of directors, managing growth, coaching and hiring management teams and exiting investments through sale or initial public offering.  In addition to her investing roles, Tasha serves as Adjunct Professor of Social Enterprise at the Kellogg School of Management. Tasha has served as the board chair for Spark Ventures, a non-profit venture philanthropy organization investing in NGOs serving vulnerable children in developing countries.  She is also founder and former board chair for the Chicago chapter of Social Venture Partners. 


Yigal Kerszenbaum, Managing Director, The Employment Technology Fund

Yigal Kerszenbaum is the Managing Director of The Employment Technology Fund (ETF).  Yigal is a ~10-year veteran of the impact investing community. Yigal has executed dozens of investments across multiple sectors and geographies, including the US, Latin America, Europe, Sub-Saharan Africa, India and South-East Asia.

Prior to joining the ETF, Yigal managed a $60MM global portfolio of Impact Investments for The Rockefeller Foundation, including ~25 investments in the form of debt, equity and guarantees. In addition to transactional work, he led the innovative finance and strategy work for several of the Foundation’s initiatives and was instrumental in the formation and implementation of a co-investment partnership with the Overseas Private Investment Corporation (OPIC)—the first partnership of its kind for both OPIC and The Rockefeller Foundation. Previously, He worked as an investment professional on the private equity team at Developing World Markets (DWM), an impact investment fund manager and advisor focused on inclusive finance. Prior to that role he “cut his finance teeth” at a global 2bn+ private equity manager and advisor, 57 Stars. Yigal is a graduate of UC San Diego and Georgetown University’s McDonough School of Business.


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Nick Ashburn, Senior Director, Impact Investing, Wharton Social Impact Initiative

Nick Ashburn is the Senior Director of Impact Investing at the Wharton Social Impact Initiative, where he leads WSII's work across thematic areas and geographies. Nick has led projects with major foundations, government agencies, and large financial institutions on a range of projects, including innovative finance for the Sustainable Development Goals, research on impact investing in public and private markets, and investing in early-stage impact venture capital with Wharton Impact Investing Partners.

Nick has taught in the School of Social Policy & Practice at the University of Pennsylvania and at the LBJ School of Public Affairs at the University of Texas-Austin. He holds a master’s degree from the Penn and is also fluent in German.

Fun fact: Nick co-hosts "Dollars & Change" on SiriusXM Channel 111 - Business Radio powered by the Wharton School - a show dedicated to the intersection of business and finance for social impact.

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Zoe Schlag, Founder & Executive Director, UnLtd USA

Zoe is the Managing Director of the Techstars Impact Accelerator in Austin. She is the Founder & Executive Director of UnLtd USA, providing seed funding and venture support to entrepreneurs tackling pressing social and environmental challenges.

Prior to UnLtd USA, Schlag worked with the portfolio management team at UnLtd India, and has worked with social ventures across the US, India, Argentina and Africa. Zoe is an Aspen Ideas Scholar, a World Economic Forum Global Shaper and holds a bachelor's degree in international relations from Tufts University.


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Dustin Rosen, Founder & Managing Partner, Wonder Ventures

Dustin Rosen is a Managing Partner and Founder of Wonder Ventures and is an investor in technology companies. Since he began his career, he’s been on every side of the business, from running and selling his own technology start-up to investing in dozens of others, as well as using this expertise to advise numerous entrepreneurs.

In 2010, Dustin founded Pose, and as CEO, led the company through development, growth and three rounds of venture capital funding before guiding it through an acquisition. Prior to Pose, Dustin worked at the Mailroom Fund, an LA-based venture capital group comprised of the William Morris Agency, Accel Partners, Venrock, and AT&T. Before this, he worked at the William Morris Agency.

He received a B.S. in Economics from The Wharton School of the University of Pennsylvania.

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Impact & Business Development Associate, Bridges Fund Managment

Prior to joining Bridges, Sarah was a Development Associate at Moving in the Spirit, an arts and youth-development focused non-profit in Atlanta, Georgia. She assisted with annual and capital fundraising efforts, and brings experience in arts and community development. Sarah holds a BA from Emory University in English and Dance/Movement Studies.


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Tyler Hoffman, Team Coordinator, Wharton Social Impact Initiative

Tyler is the Team Coordinator for the Wharton Social Impact Team, where he manages various events and activities including the online component of the MIINT program. Before Wharton, he served as Theater Director and Coordinator for a K-12 training program in the Greater Philadelphia Area and New Jersey. Tyler holds a BA in Theatre Arts from West Chester University.