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Andrew Buckman

Operator

Andrew Buckman is Chief Executive Officer of Publisher Collective, appointed in January 2026. A programmatic sell-side veteran, he previously led EMEA for OpenX, was CEO of Sublime, and held senior roles across the open-web advertising ecosystem including Index Exchange.

Last updated Jun 6, 2026 by the ATDb Editorial Team

Role
Chief Executive Officer
Company
Publisher Collective
Based
New York, New York, United States
Connections
1
Years in industry
15 years

Bio

Andrew Buckman is Chief Executive Officer of Publisher Collective, appointed in January 2026. A programmatic sell-side veteran, he previously led EMEA for OpenX, was CEO of Sublime, and held senior roles across the open-web advertising ecosystem including Index Exchange.

Career

  • Managing Director, EMEA

    Index Exchange · prior to COO role

Expertise & education

Expertise

Programmatic AdvertisingSupply-Side Platforms (SSP)Header BiddingPublisher MonetizationAd Exchange OperationsGlobal Business OperationsOpen Web AdvertisingIdentity and Privacy Solutions

Speaking topics

Independent programmatic infrastructurePublisher monetization strategiesThe future of the open webSupply-side platform innovation

Recognition

Notable achievements

  • Scaled Index Exchange's global operations as COO, supporting billions of daily programmatic ad transactions
  • Expanded Index Exchange's international presence and publisher partnership network
  • Helped position Index Exchange as a leading independent alternative to walled garden ad ecosystems
Connection details