Alex Laskey

Founder and Former President at OPOWER

Alexander Tsiaras

Editor-in-Chief and Founder/CEO, TheVisualMD.com

Alexis Madrigal

Senior Editor at The Atlantic & Author of "Powering the Dream: The History and Promise of Green Technology"

Alf Rehn

Author, Speaker & Professor of Innovation, Design, and Management at the University of Southern Denmark

Alfred Lui

Chief Design Officer at Seer Labs, Inc.

Alfred Poor

Health Tech Futurist & Writer

Alfred Poor, The Health Tech Futurist

Alfredo Jaar

Chilean-born architect, artists and film maker who lives in New York.

Alison Gopnik

Professor & World Leader in Children's Learning and Development

Alison Kosik

CNN Business Correspondent

Alison Moore

CEO, Comic Relief US

Aliza Licht

Founder & President of LEAVE YOUR MARK LLC; Author, Consultant & Podcaster

Allan Karl

World Traveler and Author of "The Beginning at the End of the Road"

Allan McLennan

Co-founder/market leader/advocator in software defined/smart TV, on-demand OTT subscription service originator, and founder data analytics platforms

Allen Olivo

Acting CMO for PayPal; Former Vice President, Global Brand Marketing for Yahoo!

Allen Sinai, PhD

Chief Global Economist, Strategist, and President of Decision Economics, Inc.

Alvin Poussaint

Psychiatrist, Media Consultant & Author

Amanda Bennett

Executive Editor, Bloomberg News Author, "The Cost of Hope"

Amanda Drury

Co-anchor of CNBC's "Street Signs"

Amanda Johns Vaden

Keynote Speaker, Executive Coach, Founding Partner at Southwest Consulting

Amanda Steinberg

Social Entrepreneur & Chief Revenue Officer at Revolution Messaging

Amar Hanspal

SVP of Products, Autodesk

Ambassador Daniel B. Shapiro

U.S. Ambassador to Israel (2011-2017)

Ambassador Munir Akram

Former Permanent Representative to the UN from Pakistan

Amit Singhal

Software Engineer at Google Inc.

Amity Shlaes

Chair of the Coolidge Foundation, Economic Thinker, NYT Best-Selling Author

Amy Lockwood

Deputy Director of Stanford's Center for Innovation in Global Health

Amy Porterfield

Social Media Strategist - Specializing in Facebook Marketing; Co-author of "Facebook Marketing All-In-One for Dummies"

Anastasia Goodstein

Award-Winning Blogger & Tween Marketing Expert

Andrea P. Howe

Author, Speaker, Educator & Founder of BossaNova Consulting Group

Andrea Pino

Women's & Civil Rights Activist; Founder of End Rape on Campus