Dirk Graber studied business administration in Marburg, Hong Kong, Moscow, and Leipzig. He received his degree in business administration from the Leipzig University of Applied Sciences (HHL). Before founding Mister Spex, Graber worked as a consultant for the Boston Consulting Group for several years.

He gained his first e-commerce experience while still at university thanks to internships at eBay and Jamba. He also worked at KPMG and Commerzbank. As founder, Co-CEO and part of the Mister Spex Management Board, he is responsible in particular for the areas of business development, IT, data analytics, operations and purchasing.

Dr. Mirko Caspar studied business administration at the Westphalian Wilhelms-University of Münster. In addition, he gained his PhD in brand strategies with Professor Heribert Meffert.

Dr. Caspar worked as a management consultant with a focus on strategy, marketing and brand management at McKinsey before he took on a leadership role at Universal Music Germany. In 2006 he co-founded the virtual world company Metaversum and acted as one of the managing directors. He has also co-founded the agencies Userlutions GmbH and Caspar-Feld Marketing-Performance GmbH. Since 2011 he has been Co-CEO at Mister Spex. Today he is part of the Management Board and in charge of marketing, category management, product management, as well as the retail stores and international markets.

Joël Kaczmarek is founder of digital kompakt and moderates the discussion. This podcast is produced in cooperation with digital kompakt, an online trade magazine on digital business models, companies and developments.

Peter Fricke has been with Deutsche Börse Group for thirteen years and has been responsible for Deutsche Börse Venture Network since April 2017. Previously, he worked at Eurex in Sales and Business Development Asia/Middle and headed the representative office in Singapore. Peter Fricke studied economics at the University of Mannheim and Chulalongkorn University in Bangkok, Thailand.