Maël Corboz, Founder & CEO
Professional football player & Sustainability expert
Maël, a passionate professional soccer player at SC Verl in the German third tier. After obtaining a degree in Mechanical Engineering with a focus on energy systems from the University of Maryland College Park in 2015, he ventured to Germany to advance his football career. Along the way, he noticed that environmental protection and sustainability were often overlooked in many clubs. There often exists a gap between a club's sustainability goals and the actual investments in time and effort.
This realization led Maël to delve deeper into the intersections between football and sustainability. As a result, he co-founded elevengreen with the aim to bridge the divide between clubs' aspirations for sustainability and the feasible means of implementation. elevengreen is the product of his passion for football and commitment to a more sustainable future in sports.
Josef Krieg, Partner
Sustainability & Communication
Josef brings rich experiences from politics, economics, civil society, and academia. He served as a personal assistant to Dr. Heiner Geißler, a member of the German Bundestag, as well as a security policy spokesperson and personal assistant to the Minister of Defense, Volker Rühe. His roles as Communications Director at the Robert Bosch Foundation in Stuttgart and Stiftung Mercator in Essen have significantly shaped his career. Josef is a lecturer in organizational communication at Zeppelin University in Friedrichshafen. His diverse expertise culminated in the founding of "ideas2communicate GmbH," specializing in sustainability strategy, reporting, and communication. Since July 2023, he has been a proud partner at elevengreen.
Oliver Schraft, Partner
Sustainability & Marketing
For nearly 30 years, Oliver has been involved in professional sports as a press officer, media director, and executive team member at VfB Stuttgart and VfL Wolfsburg. His close collaborations with media, clubs, associations, and sponsors have forged an impressive international network. Today, he shares his comprehensive knowledge in sports, corporate social responsibility (CSR), and sustainability as an independent communication consultant and coach for sports, business, and NGOs. Oliver is the founder of the communication consultancy OUTOFTHEBOX and has been a partner at elevengreen since 2023.
Stefan Frödert, Partner
Finances & Strategy
Stefan serves as a bridge between football and the business world, contributing his expertise in finance, strategy, sports, and sustainability as a partner at elevengreen since 2023. Stefan's own football career took him to Germany's 1. FSV Mainz 05 U23 team and the highest college league (NCAA D1) in the USA. His recent role as Chief of Staff at DFL Deutsche Fußball Liga GmbH provided deep insights into executive management. Prior to that, he spent nearly 8 years at BASF, a DAX-listed company, working on international projects in Hong Kong, Japan, Mexico, and the USA. His expertise spans finance, mergers and acquisitions (M&A), strategy, sustainability, and transformation processes linked to the EU Green Deal.
In addition to a Bachelor's degree in International Management and Finance from Towson University in the USA, Stefan holds a Master of Science in Management from the University of Mannheim (majoring in Business Administration). Furthermore, Stefan is a CFA charterholder and has extensive experience in the fields of finance and portfolio management.
