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Our Leadership Team

Creating a better internet

Leading the charge to create a better internet

Our Executive Team

Brian O’Kelley

CEO and Co-Founder

Michael Rubenstein

President

Jonathan Hsu

Chief Financial Officer


Ryan Christensen

Chief Operating Officer


Catherine Williams

Chief Data Scientist


Ben John

Chief Technology Officer


Nithya Das

Chief People and Legal Officer








Kris Heinrichs

SVP, Finance


Eric Hoffert

SVP, Video Technology


Julie Kapsch

SVP, Services


Ron Lissack

SVP, Chief Architect


Patrick McCarthy

SVP, Marketplace Partnerships


Dave Osborn

SVP, Global Accounts


Andrew Rutledge

SVP, North American Sales & Account Management


Tom Shields

Chief Strategy Officer


Tim Smith

SVP, Technical Operations


Marcus Startzel

SVP, Commercial


Theresa Vu

SVP, Engineering


Joshua Zeitz

SVP, Marketing and Communications


Our Board of Directors

Elisabeth DeMarse

Chairman, CEO, and President, TheStreet, Inc.

Ed Gillis

Business Consultant and Private Investor

Dave O’Hara

Chief Operating Officer, Microsoft Advertising

Brian O’Kelley

CEO and Co-Founder, AppNexus

Michael Rubenstein

President, AppNexus

Mike Tyrrell

Partner, Venrock

Dave Yuan

General Partner, Technology Crossover Ventures (TCV)

Robert Callahan

Chairman, Longueview