Kristen O'Hara
Chief Business Officer at DoubleVerify
O'Hara is known for driving strategic growth and enterprise partnerships at DoubleVerify, and for her broader advocacy of transparency, brand safety, and measurement accountability in digital advertising.
Last updated May 30, 2026 by the ATDb Editorial Team
Kristen O'Hara is a seasoned advertising technology executive best known for her leadership at DoubleVerify, where as Chief Business Officer she oversees strategic partnerships, business development, and go-to-market strategy for one of the industry's most critical digital media measurement and verification platforms. Her work sits at the intersection of brand safety, ad fraud prevention, and attention measurement — areas that have become foundational to how major advertisers and agencies evaluate media quality in programmatic environments. Before joining DoubleVerify, O'Hara built a distinguished career at Time Warner (later WarnerMedia), where she served as Chief Revenue Officer and held senior roles spanning advertising sales, digital strategy, and client partnerships. Her tenure at a major media company gave her deep fluency in both the buy and sell sides of the advertising ecosystem, informing her ability to bridge the needs of brands, agencies, and platforms in her current role. She has been a consistent advocate for supply chain transparency and accountability in digital advertising. O'Hara is recognized as a senior operator in AdTech with a track record of scaling enterprise partnerships and shaping industry conversations around measurement integrity. At DoubleVerify — which went public on the NYSE in 2021 — she has played a key role in expanding the company's footprint among global advertisers navigating the challenges of privacy-centric measurement, the deprecation of third-party cookies, and the growing demand for attention-based metrics as a complement to traditional viewability standards.
Chief Revenue Officer
WarnerMedia (Time Warner) (approx. 2010-2019)
Senior Vice President, Advertising Sales & Strategy
Time Warner (approx. 2005-2010)
- Bachelor's Degree, details not publicly confirmed
- Serves as Chief Business Officer at DoubleVerify following its 2021 NYSE IPO, helping scale the company's enterprise partnerships globally
- Led advertising revenue and strategy at WarnerMedia, one of the largest media companies in the world
- Instrumental in positioning DoubleVerify as a trusted measurement infrastructure provider for major global advertisers and agencies