24 rising nonprofit leadership speakers on Mezzo - including Jessica Sibley, Artis Stevens, and Claire Sadler. Each with the talks, gig history, and co-appearances to back it up.
Jessica Sibley
Chief Operating Officer, UNICEF | Driving Global Social Impact
Artis Stevens
President & CEO at Big Brothers Big Sisters of America
Claire Sadler
WACL President 2025/26 and Chief Marketing and Fundraising Officer | The British Heart Foundation
Esther Benjamin
Not-for-Profit/Foundation Leader
Vera de Kok
Wikimedia editor, Wikimedia Media Contributor of the Year 2025
Vivek Maru
CEO of Namati | Empowering Legal Empowerment Worldwide
Chelsea Clinton
Vice Chair | Clinton Foundation
Alexandre Mars
Social Impact Entrepreneur | Founder of Epic Foundation Bridging Business and Philanthropy
Rye Barcott
U.S. Marine and Harvard MBA | Co-founder transforming lives in Sub-Saharan Africa's largest informal settlement
Agnès Callamard
Secretary General | Amnesty International
Kathleen Caliento
Not-for-Profit/Foundation Leader
Andrew Calkins
Not-for-Profit/Foundation Leader
Byron Auguste
Not-for-Profit/Foundation Leader
Lori Alhadeff
Not-for-Profit/Foundation Leader
Karen Barr
Managing Director, Individual Giving at Share Our Strength | No Kid Hungry
Atnre Alleyne
Not-for-Profit/Foundation Leader
Anthony Calhoun
Not-for-Profit/Foundation Leader
William Brown
Not-for-Profit/Foundation Leader
Naomi Boyer
Not-for-Profit/Foundation Leader
Lawrence Bartley
Not-for-Profit/Foundation Leader
Rajiv Shah
President at The Rockefeller Foundation
Ishmam Raidah Rahman
Director, Audience and Donor Strategy at International Rescue Committee
Lindsay Marino Long
VP, Donor Engagement & Retention at Faircom NY
Deborah Garcia
Chief Development Officer at MSF USA