Leonhard Sauer currently serves as the Buyer Development Director for Central and Eastern Europe at Index Exchange, a position held since October 2025. Prior to this role, Leonhard held various titles at PubMatic from July 2020 to September 2025, including Country Manager for Central Europe and Director of Advertiser Solutions. Experience also includes a tenure as Senior Advertising Sales Manager for Programmatic at eBay Advertising and as Enterprise Account Director at Adform. Leonhard's earlier career features leadership roles in digital media optimization at G+J Electronic Media Sales GmbH and digital sales at Media Impact GmbH & Co. KG. Leonhard began in sales management at OMS Vermarktungs GmbH & Co. KG. Academic qualifications include a Diplom Medienökonom in Medienwirtschaft from Rheinische Fachhochschule Köln, completed between 2003 and 2006.
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