D
Dennis Buchheim
Senior Vice President and General Manager at Snowflake
Leveraging adtech and data expertise to drive enterprise data cloud strategy at Snowflake
Last updated May 31, 2026 by the ATDb Editorial Team · Connections updated May 31, 2026
Bio
Dennis Buchheim serves as Senior Vice President and General Manager at Snowflake, bringing deep expertise in digital advertising and ad technology to the role. He previously spent over a decade at Yahoo, where he held senior leadership positions including Vice President of Product Management and Senior Director of Advertising Platforms, shaping large-scale advertising products and platforms.
Previous Roles
Vice President, Product Management
Yahoo (~2005-2016)
Senior Director, Advertising Platforms
Yahoo (~2002-2005)
Expertise
Programmatic Advertising StandardsSupply Chain Transparencyads.txt / sellers.jsonAd Fraud PreventionPrivacy-Preserving Advertising TechnologiesIdentity ResolutionHeader BiddingDigital Advertising Policy and Governance
Education
- B.S., University (specific institution not publicly confirmed)
Notable Achievements
- Led development and industry adoption of ads.txt, now implemented by hundreds of thousands of publishers globally to combat domain spoofing
- Oversaw creation of sellers.json, establishing a new layer of supply chain transparency for programmatic advertising
- Guided IAB Tech Lab's technical response to GDPR and CCPA, including privacy signal specifications adopted across the industry
- Scaled IAB Tech Lab into the primary global technical standards body for digital advertising under his GM tenure
Awards
Recognized in trade press as a top industry leader in AdTech standards and transparency (specific named awards not confirmed)
Speaking Topics
Supply Chain Transparency and IntegrityAd Fraud PreventionPrivacy-Preserving AdvertisingPost-Cookie Identity SolutionsProgrammatic Advertising StandardsDigital Advertising Quality and Trust
Publications
- Various IAB Tech Lab white papers and specification documents on ads.txt, sellers.json, and privacy frameworks
Board Memberships
IAB Tech Lab (operational leadership)
Connections