Sam Hummel, Sustainable Purchasing Leadership Council

President & CEO

Sam has led the Sustainable Purchasing Leadership Council’s (SPLC) engagement with Fortune 500 corporations, government agencies, universities, and NGOs since recruiting the Council’s founding members in 2013. As a trusted advisor, Sam provides members with executive support for implementing strategic sustainable purchasing programs that drive innovative business practices throughout supply chains. In his prior role as Director of Outreach & Operations, Sam created SPLC’s membership program and the in-person and virtual collaboration spaces that enable the organization’s vibrant community of sustainable procurement leaders to network, share best practices, and execute projects together. Before his work with SPLC, Sam was instrumental in growing the Association for the Advancement of Sustainability in Higher Education (AASHE), whose Sustainability Tracking Assessment & Rating System provides guidance and recognition to institutions of higher education for sustainability leadership. Sam created and oversaw the green purchasing program for Duke University & Health System while working as the university’s environmental sustainability coordinator. He got his start in responsible supply chain work in 1999 while helping Duke University develop programs to eliminate sweatshops from its licensed apparel supply chains. As an entrepreneur, Sam has experience marketing renewable energy and organic food.  He graduated from Duke University with a bachelor’s degree in Computer Science.


Erin Robert, JPMorgan Chase

Head of Capital Strategies of Sustainable Finance

Erin Robert is Head of Capital Strategies at JPMorgan Sustainable Finance. She leads the firm’s client engagement efforts in the sustainability space and partners across business lines to enhance sustainability and ESG-themed product offering.
Erin previously spent 10 years in J.P. Morgan’s Corporate and Investment Bank in various roles across Markets and Investment Banking. She began her career in Public Finance, where she structured debt financings for municipal utilities, and most recently headed the Commodities Structuring team for the Americas, deploying capital to corporate clients through asset-based financings.
Erin holds a Bachelor of Arts from College of the Holy Cross in Worcester, MA.


Jennifer N. Broome, American Forests

CFRE, Vice President of Philanthropy

Jennifer N. Broome, CFRE, is vice president of philanthropy at American Forests, a nonprofit organization dedicated to protecting and restoring forests by planting millions of trees in dozens of forest conservation projects in wild landscapes across the country and expanding urban tree canopies in cities and towns across America.  Jennifer has over 17 years of fundraising experience, including major and principal donor solicitation, foundation and corporate relations, and annual fund and direct marketing management, resulting in a career fundraising total of more than $80 million.

Before joining American Forests, Jennifer was chief development officer for the Nuclear Threat Initiative (NTI), a nonprofit, nonpartisan organization with a mission to strengthen global security by reducing the risk of use and preventing the spread of nuclear, biological, chemical, radiological, and cyber weapons. A member of Phi Beta Kappa, she received dual bachelor’s degrees with distinction from The Ohio State University and is fluent in French. She has a master’s degree in Philanthropic Studies from the Center on Philanthropy at Indiana University.


Gary Levitan, JPMorgan Chase

VP Category Manager

Gary Levitan is the global category manager for energy, utilities, and sustainability.  As such, he supports the global real estate’s sustainability organization to realize its vision to become carbon neutral by 2020.  Gary started his energy and sustainability career almost 15 years ago as a credit portfolio manager for retail energy and natural gas provider Hess Corp. (now Direct Energy) and transitioned shortly after that to the C&I demand-side space.  Over the past decade, Gary has sourced and managed well over 10 GWh of clean, renewable and convention energy for various large commercial, industrial, and financial corporations.  Before joining JPMC, Gary was responsible for some of the largest “Brick and Mortar Retail” energy conservation projects in North America.


Nadine Cino, CEO & Co-Inventor

TygaBoxSystems Inc.


Nick Hamulak, Vice President of Global Supplier Services

JPMorgan Sourcing Group