Pollutec 2025 is the leading meeting place for stakeholders committed to the environment. For over 45 years, the exhibition has brought together the most innovative solutions to accelerate the ecological transition and open new markets. With 11 sectors of expertise, inspiring conferences, and countless networking opportunities, Pollutec is the must-attend event to shape a sustainable future. HSL attendance: Exhibitor – with Région SudMarie Sorensen Guillaume, Renaud Alouche & Carla GuittonOctober 7–10, 2025Lyon, France

K-Show 2025 is the world’s leading trade fair for the plastics and rubber industry. The event brings together experts from production, processing, and related sectors such as automotive, electronics, medical technology, packaging, construction, and mechanical engineering. It is the key global platform to discover groundbreaking innovations, explore a wide range of products and services in machinery, equipment, raw materials, and measurement technology, and to establish valuable international connections. HSL attendance: VisitorBelén MorenoOctober 8–15, 2025Düsseldorf, Germany

H2 Technology Expo Europe is the must-attend conference and exhibition exclusively dedicated to advanced technologies for the hydrogen and fuel cell industry. The event will gather the entire hydrogen value chain to showcase solutions for low-carbon hydrogen production, efficient storage and distribution, and innovative applications for various industries. ▶️ HSL attendance: Exhibitor (Booth 5H70) 👩‍🔬 Marie Sorensen Guillaume & Belén Moreno Fresneda 📆 October 21–23, 2025

The Business Booster 2025 is InnoEnergy’s flagship event for sustainable energy innovation. This international two-day networking event brings together over 150 cutting-edge sustainable energy technologies under one roof, creating a dynamic space for startups, investors, corporates, and policymakers to connect, collaborate, and accelerate the energy transition. For its 2025 edition, the event will take place in Lisbon, continuing its tradition of rotating across major European innovation hubs. ▶️ HSL attendance: Exhibitor👨‍🔬 Pierre-Emmanuel Casanova & Renaud Alouche📆 October 22–23, 2025📍 Lisbon, Portugal

Slush 2025 is one of the world’s leading gatherings for startups and investors. With an investor-to-founder ratio higher than in Silicon Valley, the event brings together top VCs, founders, and operators under one roof to share insights, build companies, and unlock new opportunities. Across four stages, attendees will hear from iconic speakers, while the dedicated meeting tool enables 20,000+ meetings at the heart of the venue. Beyond the conference, Slush Week offers legendary side events across Helsinki, hosted by partners and the startup community. Belén MorenoNovember 19–20, 2025Helsinki, Finland