Vojtech Vosecky is one of the most influential voices on the circular economy in Europe. Founder of The Circular Economist and former co-founder of the Institute of Circular Economy.

He has worked with hundreds of public and private entities—from CEOs to local governments—guiding their sustainable transformation journeys. As an inspirational speaker with consistently 5-star ratings, Vojtech has appeared at major conferences and forums across Europe.

In 2022, LinkedIn named him one of the Top Green Voices to follow, and in 2024, Favikon ranked him the #1 Green Creator on LinkedIn. With over 150,000 followers, he’s known for making circularity approachable, practical, and impactful.

At FEST Congress 2025, Vojtech will challenge industry leaders to go beyond compliance and use circular thinking as a lever for innovation and sustainable business transformation.

Sabine Oberhuber is a pioneer of the circular economy and Co-founder of Turntoo, a Dutch firm supporting companies and cities in building circular strategies and business models.

She is known for shaping early thinking around material value, product-as-a-service models, and long-term sustainability.

At FEST Congress 2025, Sabine will share practical insights drawn from groundbreaking work with companies like Philips and Bosch—revealing how rethinking ownership and material use can reshape entire industries.

Dr. Thomas Schachner is one of the leading executive figures in the European sanitary industry and a key force behind the success of the GROHE brand in Europe. Appointed as Leader of LIXIL Europe in 2025, he is responsible for driving sustainable growth, operational excellence, and value creation across the continent.

Known for his passion for process simplification, go-to-market innovation, and scalable growth, Thomas will share his vision for how strong leadership and smart systems can drive transformation in an evolving market.

At FEST Congress 2025, his keynote will connect industry trends with real-world execution — offering a rare opportunity to learn from one of the most experienced voices in the field.

Christina Lindbäck is Corporate Sustainability Officer at Ahlsell Group, based in Stockholm. She brings decades of high-level experience in sustainability leadership, law, and public policy—having held senior roles at companies like NCC and Ragn-Sells, and having served as Deputy Director General at the Swedish Ministry of Environment.

At FEST Congress 2025, Christina will focus on how the CSRD (Corporate Sustainability Reporting Directive) can support strategic business development. Drawing on her deep experience in both public and private sectors, she will show how double materiality can be applied as a meaningful tool for decision-making, compliance, and innovation.

Henk-Jan Wegman is CEO of Rensa Family, where he leads the company’s efforts to integrate sustainability and circular practices into the HVAC and sanitary supply chain. With over 15 years of industry experience, he brings a strong strategic vision focused on waste reduction, resource efficiency, and collaboration across the value chain.

At FEST Congress 2025, he will share how circular economy thinking can drive innovation and business opportunity while reducing environmental impact. His work emphasises the importance of cross-sector partnerships and practical, scalable solutions.

Hanna Hallin is Chief Sustainability Officer at Saint-Gobain Distribution Sweden, where she leads sustainability and communications across five companies in the building materials sector. With global leadership experience from H&M Group and a strong background in change management, business integration, and strategic partnerships, Hanna brings deep insight into embedding sustainability in complex supply chains.

Her work spans transparency, stakeholder engagement, and ESG data disclosures, with roles in Europe and Asia and as a spokesperson on climate and human rights. She has also served on several national and international boards, including the Swedish National Committee to UNESCO.

At FEST Congress 2025, Hanna will speak on sustainability in supply chains, highlighting how companies can manage risks, foster innovation, and build resilient partnerships.