Meet the SpotX Team

Léon Siotis

Managing Director, UK & Southern Europe

Léon Siotis brings nine years of digital advertising experience to SpotX from companies including BrightRoll – which was acquired by Yahoo! in October 2014 – Rubicon Project, MySpace and AOL’s He joined BrightRoll in 2011 and helped build the team and client portfolio on the buy and sell-side. Prior to that, he worked with demand-side platforms (DSPs) and agencies across EMEA at Rubicon Project to monetize display inventory on Europe’s leading publishers, including launching programmatic buying across the region. This followed two years at MySpace and a stint at At SpotX, Siotis works with leading publishers and broadcasters in the UK and Southern Europe to help them manage their video inventory and maximize advertising revenue. Léon holds a BA in Industrial Relations from the University of McGill in Montreal Canada and is currently living in London.

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