Sir Richard Branson

Businessman & Founder of Virgin Group

Gillian Caldwell

Chief Climate Officer & Deputy Assistant Administrator at the US Agency for International Development (USAID)

Edward Norton

Academy Award-Winning Actor & Filmmaker Known for "Birdman," "Glass Onion" & "A Complete Unknown"; Environmental Advocate & Social Entrepreneur

Father Michael Lapsey

SSM Director, Institute for Healing Memories

Carl Pope

Senior Advisor to UN Envoy for Cities and Climate; Former CEO and Chairman of the Sierra Club

David Bornstein

Author, Fixes column in The New York Times and Founder, Solutions Journalism Network

William McDonough

Sustainable Design Innovator, Circular Economy Pioneer, Architect

Ted Turner

Media Mogul & Philanthropist

Reihan Salam

President of the Manhattan Group for Policy Research; Former Executive Editor of National Review

Ray Kurzweil

Chairman of Kurzweil Technologies, Inventor & Futurist; Author of "How to Create a Mind"

Vinod Khosla

Founder & Manager of Khosla Ventures; Founding CEO of Sun Microsystems

Parag Khanna

Managing Partner at FutureMap; Strategic Advisor to Governments & Global Companies; Bestselling Author; TED Speaker

Geoff Colvin

Senior Editor-at-Large at Fortune & Bestselling Author

Geoff Colvin Speaker Reel

Kevin Czinger

President and CEO Coda Automotive.

Brian O'Keefe

Senior Executive Editor at Fortune

Tony Fadell

Co-Creator of the iPod & iPhone; Founder and Former CEO, Nest Labs; Bestselling Author of "Build"; Principal of Build Collective

The first secret of great design | Tony Fadell | TED

Simon Zhao Lv

Founder and CEO, Non-Profit Incubator

Mark Campanale

Founder Director , UK Social Investment Forum

Yves Cabannes

Chair of the Development Planning Unit, University College London

Tralance Addy

President and CEO, WaterHealth International

Victor d’Allant

Social Edge, Executive Director

William Drayton

Founder and CEO, Ashoka

Carl Bass

President & CEO of Autodesk

Brian Hoffstein

Contributing Writer

Jeffrey Israel

Author & Jewish Studies Professor at Williams College

Pat Mitchell

Media Executive, Emmy-Winning Producer, Women's Leadership Advocate

Shashi Tharoor

Indian Politician, Former UN Diplomat, Author

Fay Twersky

President and Director of The Arthur M. Blank Family Foundation

Brian Trelstad

Chief Investment Officer, Acumen Fund

Steven Rathgeb Smith

Professor of Public Policy, University of Washington