Mayberg Foundation Staff
Todd J. Sukol
Todd J. Sukol
Todd J. Sukol is a seasoned philanthropic leader, strategic advisor, and practitioner-scholar in nonprofit leadership at the Lilly Family School of Philanthropy at Indiana University. He currently serves as executive director of the Mayberg Foundation, where he leads efforts to proliferate Jewish wisdom and values through innovative grantmaking and affiliated high impact initiatives.
Todd's research in pursuit of a professional doctorate centers on Six Dynamics Theory (6DT)—a conceptual framework identifying recurring interpersonal and psychological dynamics in nonprofit organizations. The theory provides practical leadership responses to common tensions such as mission-drive vs. discipline, lay/professional dynamics, and the fragmentation often found in the social sector.
Previously, Todd led the consulting firm Do More Mission, where he helped philanthropists and nonprofit organizations achieve greater impact. He was the founding executive director and primary fundraiser for the Koby Mandell Foundation, where he continues to serve on the board.
With deep belief in what Robert L. Payton called “voluntary action for the public good,” Todd brings a unique combination of heart, intellect, and practicality to every endeavor. He is most passionate about supporting extraordinary people as they bring their best gifts into the world.
Amanda Mizrahi
Hanan Rubin
Hanan Rubin
Hanan Rubin is a social entrepreneur and public-sector leader with extensive experience across civil society, local government, and social-impact technology. Over the past two decades, he has founded, led, or played a key role in some of Israel’s most influential social initiatives, including Awakening in Jerusalem, The Upside-Down Hat, A New Spirit in the Teachers’ Union, The Attention Revolution, and Derech Eretz.
Alongside his work in the social sector, Hanan has been actively involved in Israel’s cultural institutions, serving on the boards of the Israel Museum, the Tower of David Museum, Ticho House, and Between Heaven and Earth.
Hanan later entered public service and was elected to the Jerusalem City Council as a representative of the Awakening (Hitorerut) movement. During his tenure, managing the youth, families, and student portfolios and served as chair of the Municipal Funding Committee, overseeing approximately NIS 100 million annually in grants to local organizations. In these roles, he led reforms in public-space planning, modernized playground design and implementation, restructured municipal funding mechanisms for nonprofit organizations, and participated as a member of the Planning and Building Committee in major urban policy decisions.
In recent years, Hanan has focused on integrating social impact with business and technology. He has co-founded or partnered in a number of mission-driven companies, including RiseUp, Donateit, Canga, GoodSprings, and Emek LeHar, among others. These ventures develop technological solutions to social challenges in Israel and collectively represent valuations in the hundreds of millions of dollars.
Hanan is married to Halel, and they live in Alon, east of Jerusalem, with their six children.
Rachel Mohl Abrahams
Rachel Mohl Abrahams
Rachel Mohl Abrahams serves as the senior advisor for education grants and programs. She brings to her work as a grantmaker and change agent more than two decades of experience in Jewish educational project design, program management and evaluation.
Previously Rachel served as a senior program officer at The AVI CHAI Foundation where she specialized in Jewish education grantmaking and day school initiatives. With a particular affinity for and expertise in personalized learning, Rachel has been a champion for integrating these methodologies into Jewish education spaces.
Rachel holds an M.A. in Bible from Bernard Revel Graduate School and a J.D. from the Cardozo School of Law, and she began her career as an attorney specializing in family law. She lives with her family in New York.
Naftali Ejdelman
Zohar Hahn-Brafman
Rina Schiff
Aggie Grossman
Marni Darby
Jewish Education Innovation Challenge Staff
Ruchel Green
Ruchel Green
Ruchel Green has dedicated over 20 years to formal and informal Jewish education. She holds a master’s degree focused on Educational Technology and spent years serving Jewish day schools throughout the Greater Washington area.
In 2016, Ruchel was selected for HaKaveret: The JEIC Team Challenge, collaborating with ten national educational leaders to design forward-thinking approaches for Jewish learning. This experience reinforced her commitment to leveraging research and bold ideas to radically improve the quality of Jewish day school education across North America.
Jewish education is both Ruchel’s profession and her daily reality. Raised by two Jewish educators, she and her husband have five children who have attended Jewish day schools. Both personally and professionally, she is deeply invested in ensuring a vibrant Jewish future. In her free time, Ruchel enjoys reading about Jewish education and Israel, and she is also an AFAA-certified spin instructor.
Rabbi Shmuel Feld
Rabbi Shmuel Feld
Rabbi Shmuel Feld proudly serves as the founding director of the Jewish Education Innovation Challenge. He was a principal and classroom educator in several Jewish Day Schools before joining JEIC in 2012.
Rabbi Feld’s vision of education was shaped by his personal Torah study and day school learning. He earned a Bachelor of Arts degree from University of Chicago and a Master of Science in Education from Harvard Graduate School of Education. Additionally, he completed graduate-level coursework at the Lynch School of Education of Boston College. Rabbi Feld holds one of three ordinations granted by Rabbi Gedalia Dov Schwartz.
His favorite job is husband and father of three sons in Silver Spring.
MyZuzah Staff
Rachel Berezin
Rachel Berezin
Rachel Berezin, MyZuzah CEO, has 18 years of leadership experience in the areas of fundraising, strategic development, team building and engagement. Before joining MyZuzah, she was Director of Endowment for PJ Library, Vice President for Development at the Jewish Federation of Greater Hartford, and Campaign Director at the Jewish Federation of Western Massachusetts.
Rachel started her career with PJ Library when it was a pilot program in Western MA. She also was on the national team that, working with local partners, established PJ Library in more than 75 North American communities. Her responsibilities also included working with international partners.
Rachel brings this experience along with a collaborative, metrics-based work style, built on teams working together strategically to attain and exceed collective goals.
Lori Hoch Stiefel
Lori Hoch Stiefel
Lori Hoch Stiefel is a seasoned Jewish communal professional and strategic partner with deep experience across Federations, JCCs, Hillel, BBYO, and the Harold Grinspoon Foundation’s PJ Library. Over the past decade+, she has worked at the intersection of community engagement, leadership development, and relationship-driven strategy—helping organizations clarify their vision, strengthen partnerships, and turn big ideas into meaningful impact.
Originally from Montreal and now based in Charleston, South Carolina, Lori brings both a big-picture lens and a deeply human approach to her work. She is known for building trust quickly, asking the right questions, and creating spaces where people feel seen, supported, and inspired to lead.
When she’s not working, Lori can be found making a joyful mess in the kitchen experimenting with vegan recipes and herbal remedies, attempting (with mixed success) to sew her own wardrobe, and keeping up with life alongside her husband and three children.
Aggie Grossman
Aggie Grossman
As the MyZuzah Associate Director of Engagement, Aggie works with the MyZuzah team to further the goal of providing a kosher, fair-trade mezuzahs to any Jewish home that needs one. She is focused on nurturing MyZuzah's relationships with partners, developing new program ideas, and helping the whole team's operations run smoothly. She holds a Bachelor of Arts in Jewish Studies as well as a Master of Public Health.
Julie Lobb
Julie Lobb
Julie Lobb, MyZuzah Project Associate, leads data management and logistics for the MyZuzah team. Prior to joining MyZuzah, she served as a human resources business partner for over 12 years, specializing in developing and driving plans to optimize talent, structure, process, and culture in organizations. Julie graduated from the University of Virginia.
STAMP Staff
