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Tim Vanderhook

CEO, Co-Founder & ChairmanViant Technology

Irvine, CA

Member Since February 2022


Tim Vanderhook is Co-Founder, CEO and Chairman of the Board of Viant Technology (Nasdaq: DSP). He leads the company’s strategic vision, driving innovation and product development of Viant’s self-service DSP for omnichannel advertising, Adelphic®. For more than 2 decades, Tim, alongside his brother Chris Vanderhook, has steered Viant’s mission of automating the planning, buying, and measurement of advertising through technology and innovation. Furthermore, Tim’s early vision led to the development and standardization of using web cookies for behavioral targeting that pioneered interest-based digital advertising practices commonly in use today. In addition to Viant, Tim also co-founded XUMO in 2011, one of the largest ad supported Over-The-Top (OTT) streaming services, which was acquired by Comcast in February 2020. Recognized for his digital advertising expertise and innovation, Vanderhook has authored several patents including Internet Connected Household Identification, Upfront Advertising Purchasing Exchange and User Demographic Profile Methods. Tim is a serial entrepreneur and investor, avid sports fan and resides with his wife Laura and their four children in Orange County, California.

Published content

How to crack the code of CTV in digital advertising


Embracing CTV is not just a trend, but a transformative shift in how brands connect with audiences effectively.

Advertisers, how good is your AI?


There is a new way of doing business. It’s powered by AI and harnesses the power of automation to help marketers drive efficiency and growth for their brands.

Sustainability in ad tech: There’s never been a better time than now to take action


Recently, sustainability has taken center stage for an industry where the carbon impact may be less obvious, yet no less significant: advertising technology.

Why now is the time to punch above your weight–and how to do it


For many, there may be an impulse in the midst of economic headwinds to retrench, pull back, and protect what they have. That instinct is understandable, but it may be a mistake.

Company details

Viant Technology

Company bio

Viant® (NASDAQ: DSP) is a leading advertising software company that enables marketers to plan, execute and measure omnichannel ad campaigns through a cloud-based platform. Viant’s self-service Demand Side Platform, Adelphic®, powers programmatic advertising across Connected TV, Linear TV, mobile, desktop, audio, gaming and digital out-of-home channels. In 2022, Viant was recognized as a Leader in the DSP category, earned Great Place to Work® certification and Co-Founders Tim and Chris Vanderhook were named EY Entrepreneurs of the Year. To learn more, please visit



Area of focus

Ad Targeting
Ad Exchange
Ad Network

Company size

201 - 500