MIINT team

Brian Trelstad, Partner, Bridges Ventures

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, Former Senior Associate, Bridges Ventures

Joanne was an Associate at Bridges Ventures 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, Director, Bridges Ventures

Jennifer is a Director at Bridges Ventures on the US team. Prior to joining Bridges Ventures in 2015, Jennifer was a Managing Associate at Next Street, an urban economic development advisory firm, where she led project teams on a range of client engagements related to impact investing and community development solutions. Prior to Next Street, Jennifer was an investment banker at J.P. Morgan, where she originated and restructured syndicated leveraged loans in the real estate, lodging and gaming sectors, and structured public finance bonds in the governmental, transportation, and energy sectors, working on over $18 billion in transactions. While pursuing her MBA, Jennifer also worked on the investments team at Imprint Capital, an impact investing advisory firm, where she conducted investment analysis on private and public debt and equity opportunities. 

Jennifer holds a B.S. in Foreign Service with a major in International Economics from Georgetown University and an MBA in Finance and Entrepreneurial Management from The Wharton School, University of Pennsylvania.

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, Associate, Rockefeller Foundation

Yigal Kerszenbaum joined The Rockefeller Foundation in 2013. Yigal manages the Foundation's Program Related Investments (PRI) portfolio and works on the Innovative Finance initiative, which seeks to catalyze an efficient industry that can deploy investment capital in an effort to address social challenges at scale.

Prior to joining the Foundation, Yigal served as a Private Equity Investment Associate covering Latin American for Developing World Markets (DWM), a US-based Impact Investment firm that primarily invests in inclusive financial institutions (IFINs). Previously, Yigal worked as an MBA Associate at 57 Stars, an independent asset manager focused on investing in primary and secondary private equity partnerships and co-investments in select markets primarily in emerging markets.

Yigal received his MBA from Georgetown University and his BA in Economics and Finance from University of California, San Diego where he graduated with Summa Cum Laude and Phi Beta Kappa Honors. He is Fluent in Spanish, and conversant in Hebrew and Portuguese.