SEO-DAY GmbH
SEO-DAY GmbH, based in Leverkusen, organizes SEO-Day in Cologne, one of the leading SEO conferences in the German-speaking market.
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Category Business
Updated Jul 12, 2026
SEO-DAY GmbH, based in Leverkusen, is the organizer behind SEO-Day . Its managing director is Fabian Rossbacher , from whose Cologne and Düsseldorf SEO meetups the conference emerged in 2011.
What it does
The company runs the annual conference at Cologne's RheinEnergieSTADION and its ExpertDay pre-event, curating a speaker program around SEO, GEO and AI.