Matt Kilmartin

Matt Kilmartin is best known as the co-founder and CEO of Habu, a data clean room software company that enables brands, publishers, and platforms to collaborate on data in a privacy-preserving way. Under his leadership, Habu became one of the most prominent players in the data clean room and identity resolution space, helping major enterprises navigate the deprecation of third-party cookies and the shift toward first-party data strategies. Habu was acquired by LiveRamp in early 2024, marking a significant milestone in the consolidation of the data collaboration market. Prior to founding Habu, Kilmartin held senior roles at companies including Millennial Media and other digital advertising firms, building deep expertise in programmatic advertising, mobile marketing, and data-driven media buying. His career trajectory reflects a consistent focus on the intersection of data, identity, and media activation — areas that have become central to the modern AdTech stack. Kilmartin is widely regarded as a thought leader on data clean rooms, privacy-safe data collaboration, and the future of identity in advertising. He has been a frequent voice in industry discussions around how brands can maintain measurement and targeting capabilities in a post-cookie world, and his work at Habu helped define best practices for clean room adoption across the ecosystem.

• Bachelor's Degree, University of New Hampshire

• Co-founded Habu, one of the leading data clean room platforms in the AdTech industry
• Led Habu through its acquisition by LiveRamp in early 2024
• Helped define enterprise data clean room best practices adopted by major brands and publishers