
Six clubs from the Bundesliga and the second division (VfL Wolfsburg, Werder Bremen, VfB Stuttgart, FC St. Pauli, SC Paderborn 07 and Bayer 04 Leverkusen) took part in the 'sustain Club' sustainability certification and as part of that process Bayer 04 were awarded the 'sustain Club silver’ certification.
With the achievement of this certification, the sextet of clubs assumed a pioneering role in professional sport. In cooperation with the Swiss organisation 'sustainable///sports', a pilot phase was held to develop the 'sustainedClub' standard, which was certified by the independent expert organisation DEKRA. It was the first recognised sustainability standard and orientation point in professional football.
"As a club, we are very happy about achieving silver status. I'd like to thank everybody who made a contribution to that," said Fernando Carro, chairman of the board at Bayer 04. "In this assessment by the experts, we not only recognise an award but we also value it as an additional incentive to continue to develop in the area of sustainability."
The six participating clubs have accepted the challenges relating to sustainability in professional football and are committed to a better future in the three areas of sustainability (economy, ecology and community). The standard involves the establishment of a CSR and sustainability management system, sustainability analysis and the identification of concrete improvement opportunities.

Midfielder Ruby Grant is leaving Bayer 04 Leverkusen and joining Portuguese runners-up Sporting CP a year before her contract expires. The 24-year-old has been at the Werkself since January 2025.
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Bayer 04 have loaned Brazilian full-back Arthur to Bundesliga side Werder Bremen for one year. Arthur Augusto de Matos Soares – the full name of the right-back – has a contract with Leverkusen until 30 June 2031. At Werder, the 23-year-old is expected to make an impact and help the long-established club further consolidate their position in the Bundesliga.
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Bayer 04 have loaned defender Jeanuel Belocian to Spanish top-flight side Racing Santander. The 21-year-old defender joins the team currently ninth in La Liga until the end of the current 2026/27 season. Belocian’s contract remains valid until 30 June 2029. Last season, the 1.86-metre-tall U21 international was loaned to VfL Wolfsburg for six months.
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He knows the dressing room, the pitch and the club. But, above all, he knows the feeling of playing for the Werkself at the BayArena: Moussa Diaby is back in Leverkusen after three years. The lightning-fast winger has signed a contract with Bayer 04 until 2031 and he will once again wear the number 19 jersey. The left-footed player previously played for the club from 2019 to 2023, having arrived in the Rhineland from his native France as a promising young talent and eventually leaving the club – having established himself as one of the Bundesliga’s best attackers – to join Aston Villa in the Premier League. Now he has returned to Bayer 04 from Al-Ittihad FC in Saudi Arabia.
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