Leadership
Staff & Consultants

Matthew Hart
Director

Marina Gonzalez Flores
Senior Officer for Program, Events, and Member Engagement

Mauro Cabral Grinspan
Senior Officer for Gender Justice & Equity
Matthew Hart
Founder and Principle of the Paris-based Lafayette Practice, Hart has previously served as Senior Strategist for Europe for Funders Concerned about AIDS, and National Director for Public Engagement at Solutions for Progress.
Hart also serves as the President of the Board of Directors of the Calamus Foundation (DE), and has previously served as a member of The Civil Marriage Collaborative, a board member of Funders for LGBTQ Issues, Philadelphia Cultural Fund, Philadelphia’s Sustainable Business Network, and The Leeway Foundation; and the community funding board of Bread & Roses Fund. A Jonathan Lax Academic Fellow, Hart received degrees in Urban Studies and Cultural Anthropology from Temple University.
Marina Gonzalez Flores
Mauro Cabral Grinspan
Cabral Grinspan has more than 20 years of experience in the field of trans and intersex advocacy; he co-founded GATE in 2009 and served as its Executive Director for five years. He is also a member of different Boards, including the International Advisory Board of the LGTBI Program at Human Rights Watch, the Editorial Board of Sexual and Reproductive Health Matters, and the Advisory Board of the project “Intersex – New Disciplinary Approaches (INIA)”.
Cabral Grinspan participated in the elaboration of the Yogyakarta Principles and the Yogyakarta Principles+10, being a signatory of both documents. He holds a Degree in History by the Universidad Nacional of Cordoba (Argentina), and had continued postgraduate studies in the fields of philosophy and public policy.

Ezra Berkley Nepon
Senior Program Officer for Knowledge and Learning
Ezra Berkley Nepon
Nepon’s experience in philanthropy goes back to co-founding a small public fund in 1998, The Self-Education Foundation, which made small grants to groups using self-education as a liberatory tool. Previous development work includes serving as Director of Grassroots Fundraising for Sylvia Rivera Law Project, and Development Coordinator for the William Way LGBT Community Center. More recently, Nepon worked as partner in The Lafayette Practice, co-authoring reports including “Who Decides: How Participatory Grantmaking Benefits Donors, Communities and Movements.”
Nepon received an M.A. Degree from Goddard College with a concentration in Transformative Language Arts, and was a 2014 recipient of the Leeway Foundation Transformation Award. They are the author of two books – most recently, Dazzle Camouflage: Spectacular Theatrical Strategies for Resistance and Resilience. In 2019, Nepon joined the board of the Leeway Foundation.

Jay Postic
Research Consultant,
Global Resources Report
Jay Postic

Dave Scamell
Senior Consulting Advisor,
Government Relations and Field Engagement
Dave Scamell
Most recently, Dave was the Director of International Advocacy at American Jewish World Service (AJWS), where he established the organization’s International Advocacy department and oversaw advocacy to influence international policy institutions, including the U.N., and international funding organizations. Prior to joining AJWS, he worked at the Open Society Foundations, leading the foundations’ work on the legal and health rights of trans people and sex workers. At both AJWS and OSF, Dave spearheaded funder advocacy that has catalyzed resources for the global trans and intersex movements.

Celeste Smith
Operations Manager
Celeste Smith

Executive Committee Members
Co-Chairs

Mukami Marete
GPP Executive Committee Co-Chair
UHAI EASHRI, Co-Executive Director
MUKAMI MARETE
Before joining UHAI, she had worked with Kenya Human Rights Commission (KHRC) in the finance and administration department and was actively involved in the sexual and reproductive health rights program and in particular right to safe abortions and rights of LGBTI people.
Mukami is a mother of two and believes that love makes a family. She wants to be able to bring up her African children to be resilient in a patriarchal, racist, imperialist and sexist world that she finds herself in.

David Sampson
GPP Executive Committee Co-Chair
The Baring Foundation, Deputy Director
DAVID SAMPSON

Francisco O. Buchting
Horizons Foundation, Vice President of Grants, Programs, and Communications
FRANCISCO O. BUCHTING
As the Vice President of Grants, Programs, and Communications at Horizons Foundation, Francisco oversees all of the foundation’s grantmaking, programmatic strategies, and communication activities. His 25 plus years of experience in government, philanthropy, academia, nonprofit organizations, and community activism have blended scientific expertise, commonsense public health experience, research, organizational re-engineering, and grantmaking.
Francisco’s career includes bilingual clinical practice in behavioral medicine with a special focus on chronic diseases. He has co-authored a bimonthly newspaper column on health, written numerous research articles, and produced research reports. He has also served on numerous community-based organization boards and museum advisories.
Francisco holds a Ph.D. and M.A. in clinical psychology from Boston University, along with B.S. in Psychology and B.A. in philosophy from the University of California, Davis.

Rebecca Fox
Astraea Lesbian Foundation for Justice, Vice President of Programs
REBECCA FOX

Alli Jernow
Arcus Foundation, Social Justice Program Vice President
ALLI JERNOW

GPP Working Group and Task Force Chairs
Government & Multilaterals
Task Force Co-Chairs
Responding to “Anti-Gender”
Task Force Co-Chairs

Caroline Kouassiaman
Co-Chair, Government/Multilaterals Task Force
Caroline Kouassiaman
Caroline is a queer Pan-African feminist of Ivorian and African-American heritage, and has lived in Burkina Faso, Cameroon, Côte d’Ivoire, Ghana and Uganda. She holds a B.A. in Economics and Diplomacy & World Affairs from Occidental College, a Master of Public Administration degree and a master’s in international relations from the Maxwell School of Syracuse University (US). Caroline works for a world where LGBTQI persons – in their full and beautiful diversity – have the opportunity, autonomy and resources to live full, healthy and violence-free lives on their own terms.

Justus Eisfeld
Co-Chair, Government/Multilaterals Task Force
Justus Eisfeld

Medina Haeri
Co-Chair, RAGI Task Force
Medina Haeri
Medina Haeri is a programme officer with the Oak Foundation’s Issues Affecting Women Programme. In that role, Medina connects feminist and women’s organisations and movements around the world with resources to strengthen their work and help advance their agendas. Medina leads the anti-trafficking and exploitation portfolio and supports global movement building work. Prior to working for Oak Foundation, Medina worked in the Women and War unit of the International Committee of the Red Cross (ICRC), ensuring that the organisation’s interventions better reflected the needs, vulnerabilities and capacities of women and girls in conflict and post-conflict settings. She has also worked with the International Rescue Committee supporting refugee resettlement in Thailand and with indigenous women’s collectives building economic development projects in Guatemala. Medina was born in Iran and immigrated to the US at a young age – following the path of many migrants in search of a brighter future. She immigrated again as a young adult to Switzerland to build a family and purse her professional ambitions. Medina holds a master’s degree in international affairs from the Fletcher School of Law and Diplomacy at Tufts University.

Prachi Patankar
Co-Chair, RAGI Task Force
Prachi Patankar
Individual Donors Working Group
Co-Chairs
Trans & Intersex Funding Task Force Co-Chairs

Adrian Coman
Co-Chair, Individual Donors Working Group
ADRIAN COMAN

Ise Bosch
Co-Chair, Individual Donor Working Group
ISE BOSCH

Viviane Simakawa
Co-Chair, Trans and Intersex Funding Task Force
VIVIANE SIMAKAWA

Félix Endara
Co-Chair, Trans and Intersex Funding Task Force