David A. Steinberg, Co-Founder, Chairman & CEO

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David co-founded Zeta and has been on the board of directors since 2007. With over 30+ years of achievement as an entrepreneur and as CEO of 5 successful companies, Mr. Steinberg has an impressive track record of scaling businesses in the technology industry. Before Zeta, he was the founder and CEO of InPhonic, a seller of wireless phones and communications products and service, as well as the Chairman and CEO of Sterling Cellular. Mr. Steinberg is Chairman and an active participant of the David Steinberg Family Foundation, which focuses on supporting disadvantaged children. He holds a BA in Economics from Washington & Jefferson College.

Steven Gerber, President and Chief Operating Officer

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Steven has been a Zeta leader since 2009. Mr. Gerber oversees the day-to-day management of the Company, including product development, business development, customer success and operations. He has more than 20 years of experience in data-driven digital technology. Previously, Mr. Gerber was a Senior Vice President at Tranzact LLC and held management positions at Bain & Company and Digitas LLC. He holds a BA from Northwestern University and an MBA from Columbia University.

Christopher Greiner, Chief Financial Officer

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Christopher has been a Zeta leader since 2020. He has over 20 years of proven success in the technology industry. Prior to joining Zeta, Mr. Greiner served as Chief Financial Officer of LivePerson Inc., an AI-powered conversational cloud provider, from 2018 through March 2020 and before that spent five years at Inovalon, a cloud-based healthcare and life sciences analytics company, first as Chief Product and Operations Officer and then as Chief Financial Officer. Mr. Greiner also held roles of increasing executive responsibility at IBM from 1999 until 2012 and Computer Sciences Corporation (CSC) from 2012 to 2013. He holds a BBA in Finance and Economics from Baylor University.

Crystal Eastman , Chief Marketing Officer

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Crystal Eastman joined Zeta in 2021 and is responsible for global marketing strategy and execution, including brand activation, performance marketing, communications, events and sponsorships, client engagement and Zeta’s employer brand. Previously, Crystal was Head of Global Marketing for The Trade Desk (TTD), where she was responsible for all global go-to-market activities, including their ConnectedTV campaign. Crystal is a versatile marketing leader, having spent her career driving Brand Strategy, Customer Acquisition, and Loyalty for iconic brands, such as American Express, BlackRock, Allstate, and Goldman Sachs. She also earned the American Express Pinnacle Award for exceptional leadership in 2013.

Steve Vine, EVP of Mergers and Acquisitions and General Counsel

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Prior to Zeta, Steve was SVP of Corporate Development and General Counsel at PulsePoint, where he led multiple acquisitions and the transformation into a leading Content Marketing platform.

Christian Monberg, Chief Technology Officer and Head of Product

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Christian has served as a Zeta leader since 2017. He is responsible for overseeing the product and technical vision in support of Zeta's business strategy, with his primary focus on developing and acquiring key AI, data and identity assets in support of the Zeta Marketing Platform. Prior to joining Zeta, Chris co-founded Boomtrain, an AI-powered marketing platform acquired by Zeta Global. As Additionally, Chris was the VP of Interaction at Hornall Anderson and the founder of HAX, Omnicom's first R&D lab, which enabled inter-disciplinary teams to redraw the boundaries of interactive design with cutting-edge technologies.Christian holds a B.S. of Engineering from the University of Vermont.

Neej Gore, Chief Data Officer

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Neej has been a Zeta leader since 2017. Neej is responsible for the Zeta’s global data and analytics strategy, creating growth for brands by transforming data into actionable business insights, developing Zeta’s identity graph and driving further innovation within the Opportunity Explorer platform. With over 20 years of experience in digital marketing, Neej is an experience leader with a deep background in data machine learning, marketing technologies and sdcaling businesses. Prior to his current role, Neej was President of the Zet Data Cloud division, Chief Business Officer at Boomtrain and founder of two digital marketing platforms. Neej holds a Bachelor of Science in Computer Science and Engineering from Cornell University.

Juliet Schuler, Chief Diversity and Inclusion Officer; Partner, Global Clients

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Juliet leads Zeta’s DEI strategy for the business, and internal/external programming with our five Employee Resource Communities. D&I is a fundamental part of Zeta’s strategy, where Juliet is also responsible for Zeta’s employee culture. As part of her Partner, Global Clients remit, she consults with Zeta’s international clients to drive maximum business results. Prior to this, Juliet was Zeta’s Managing Director, EMEA.

Before joining Zeta, Juliet worked in leadership positions at eBay, and various agencies (DDB, Ogilvy, Blast Radius) delivering omnichannel marketing. Juliet has more than 20 years of marketing experience having worked in New York City, Paris, Amsterdam and London, she is currently based in London.

Denise Lang, Senior Vice President, Human Resources and Assistant General Counsel

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Denise oversees human resources, employee development and talent acquisition.

Prior to Zeta, Denise began her career as an associate in the corporate practices of David and Gilbert and Dewey Ballantine where her practice focused on mergers and acquisitions and financing transactions, as well as advising on a variety of securities and corporate law matters. Denise also served as Associate Corporate Counsel at PulsePoint, a content marketing platform company using data to accelerate healthcare marketing. At PulsePoint, she was responsible for merger and acquisition, compliance as well as general corporate and employment matters.

Denise holds a Bachelor of Arts in Spanish and Business Administration from Vanderbilt University and her J.D. from Tulane Law School. She currently resides in New Jersey.