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Matt Landeman

Operator

Matt Landeman is a senior media executive at dentsu, one of the world's largest advertising and media agency networks, where he serves in a leadership capacity overseeing media investment and strategic partnerships. His work spans the full spectrum of media buying and planning, connecting clients with audiences across linear, digital, and emerging media channels at scale. Landeman has built his career within the dentsu ecosystem, developing expertise in negotiating and managing media investments on behalf of major advertisers. His role as Chief Investment Officer positions him at the intersection of media supply, audience strategy, and client outcomes, working to maximize the value of media spend across dentsu's portfolio of clients. With a career rooted in agency media operations, Landeman represents the operator archetype within the advertising industry — focused on execution, investment efficiency, and building relationships with media partners that translate into competitive advantage for clients.

Company: dentsuBased: New York, New York, United States

Last updated Oct 6, 2026 by ATDb automated enrichment

AI-drafted from public sources1 source cited

Years in industry
15 years

Bio

Matt Landeman is a senior media executive at dentsu, one of the world's largest advertising and media agency networks, where he serves in a leadership capacity overseeing media investment and strategic partnerships. His work spans the full spectrum of media buying and planning, connecting clients with audiences across linear, digital, and emerging media channels at scale. Landeman has built his career within the dentsu ecosystem, developing expertise in negotiating and managing media investments on behalf of major advertisers. His role as Chief Investment Officer positions him at the intersection of media supply, audience strategy, and client outcomes, working to maximize the value of media spend across dentsu's portfolio of clients. With a career rooted in agency media operations, Landeman represents the operator archetype within the advertising industry — focused on execution, investment efficiency, and building relationships with media partners that translate into competitive advantage for clients.

Expertise & education

Expertise

Media InvestmentMedia BuyingMedia PlanningAgency OperationsLinear TelevisionDigital MediaClient StrategyMedia Partnerships

Speaking topics

Media Investment StrategyAgency-Client PartnershipsMedia Buying Innovation

Recognition

Notable achievements

  • Appointed Chief Investment Officer at dentsu, overseeing media investment strategy across a major global agency network
  • Led large-scale media investment operations within dentsu's Amplifi investment unit