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Lena Petersen

Chief Brand & Communications Officer at Stagwell

Brand and communications leadership at a modern marketing network

Operator15+ years in industry

Last updated May 31, 2026 by the ATDb Editorial Team · Connections updated May 31, 2026

Bio

Lena Petersen serves as Chief Brand & Communications Officer at Stagwell, where she leads the agency network's brand strategy and communications efforts. She brings a background in the advertising and marketing technology space to her role shaping how Stagwell presents itself to clients, partners, and the broader industry.

Expertise
Header BiddingIdentity ResolutionSupply Path OptimizationProgrammatic AdvertisingPublisher MonetizationAd Exchange TechnologyPrivacy-Compliant AdvertisingOpen Internet Advocacy
Notable Achievements
  • Led product development of Index Exchange's header bidding solutions, contributing to the company's growth as a leading independent ad exchange
  • Drove identity solution strategy at Index Exchange in response to third-party cookie deprecation
Speaking Topics
Supply-side innovation and publisher empowermentIdentity resolution in a post-cookie worldOpen internet sustainabilityHeader bidding and supply path optimization
Connections