Vestiaire Collective, a leading global platform for pre-owned luxury fashion, has promoted Bernard Osta to chief executive officer. He succeeds Maximilian Bittner, who has led the company for the past seven years.
Bittner remains a shareholder but no longer holds a position in the company.
Based in Paris, Osta has been part of Vestiaire Collective since May 2021. He had been chief strategy officer from May 2021 to August 2023, and chief financial officer from September 2023 to September 2025. Before joining Vestiaire, Osta spent time advising businesses strategically as an investment banker for 15 years at Lazard (2006 to 2011) and Goldman Sachs (2011 to 2021) in New York and Paris. He also serves as independent member of the supervisory board of media and entertainment group Vivendi.
A statement from Vestiaire’s board said: “We want to thank Maximilian Bittner for his dedication and the significant role he has played in the development of the company since he joined in late 2018. We wish him every success in his future professional projects. Looking forward, we are very happy to open a new chapter under the leadership of Bernard. We have worked very closely with him since he joined Vestiaire Collective. His intimate knowledge of the company, international experience and great leadership will be invaluable assets for Vestiaire Collective in its next phase of growth.”
Osta said: “I am very honored to take the role of chief executive officer of Vestiaire Collective and lead the highly talented team we have built over the years. Vestiaire Collective has secured a unique position as the ultimate trusted marketplace in the highly attractive pre-loved luxury fashion industry. Together, we will continue to transform fashion giving a second life to the most desirable pieces, at the service of a more sustainable model. This is a particularly exciting moment for the company. With the rise of AI, we have an extraordinary opportunity to accelerate on our product roadmap, deliver the most engaging customer experience and gain market share.”
Under this new leadership, Vestiaire will continue to deliver on its mission to transform the fashion industry toward a more sustainable future by focusing on several strategic priorities. According to the company, they include driving innovation at the crossroads of luxury, technology and sustainability; implementing the company’s extensive AI-enabled product roadmap to improve the buyers’ and sellers’ experience at an accelerated pace; increase Vestiaire’s reach and brand awareness through innovative and impactful marketing in its core regions across Europe, the U.S. and Asia-Pacific, and invest in the company’s leading authentication capabilities to further confirm its strategic position as the ultimate trusted marketplace in the pre-loved fashion industry.
Vestiaire, a certified B Corp., features a catalog of over 5 million items and is active in 70 countries.
Last July, the company named Samina Virk global chief marketing officer, adding to her current duties as U.S. chief executive officer. Earlier this year, Vestiaire wrapped up a three-year campaign to tackle textile waste, which has included a ban on fast-fashion brands. In November 2023 Vestiaire blacklisted 30 fashion brands including H&M, Mango, Uniqlo and Zara from being bought, sold or listed on its platform, and continued adding brands such ultra-fast-fashion players Temu and Shein. The company began an influencer education campaign in November 2024 to help change the narrative around popular social media “hauls,” call attention to marketing tactics and nudge consumer behavior.
Last week, the company said it became the first pre-owned fashion business to monetize its avoided emissions into measurable and additional carbon credits. The company’s new approach involves issuing credits that quantify the amount of emissions that were prevented from being used when consumers purchased pre-loved fashion instead of buying new.
During Bittner’s tenure as chairman and CEO, Vestiaire acquired and integrated U.S competitor Tradesy in 2022 and built strategic partnerships with brands such as Gucci, Chloé, Burberry and e-commerce platform Mytheresa. Prior to joining Vestiaire, Bittner was a senior advisor for Alibaba Group.
