Ilona Miszczak appointed CEO of Leca®
Ilona Miszczak joined Leca as CEO on June 1st, bringing with her strong experience from the building materials industry. Her professional background combines strategic insight with hands-on leadership and a passion for sustainable solutions in construction.
Ilona Miszczak, an economist by education, is dedicated to helping people and businesses advance through a balance of logic and innovation. With over 20 years in the building glass industry, including 15 years at Saint-Gobain Glass, she specialises in market and product development and leads specification-based sales across Europe, seeking opportunities beyond the products themselves.
Joining Leca® feels like a natural next step for her. It combines her appreciation for nature-inspired products, a blend of tradition and precision in production, an international perspective, and a strong focus on specifications. Most impressive during her visits was the dedication and expertise of the team, creating an environment where she feels at home.
She is especially motivated by teamwork, a hands-on approach, and the opportunity to create meaningful impact through practical execution. She thrives when working with committed people, solving real challenges together, and turning ideas into tangible results.
Ilona draws inspiration from both Leca’s heritage and its recent accomplishments. The company has established a strong position in sustainable construction using biomass in production, its commitment to reducing CO₂ emissions, and innovative product applications like the Filtralite range. For her, it’s about products that originate from nature and remain in harmony with it — and that truly matters to her.
In the coming months, she plans to engage actively with all teams, learn from their insights and ideas, and foster strong collaboration. She also aims to gain a deep understanding of the business — its production processes, key challenges, customer expectations, and the competitive landscape, including substitute materials. All of this will be done while maintaining a clear focus on delivering the company’s short- and mid-term business objectives.
As part of the Saint-Gobain Group, Leca® has a strong role and opportunity to leverage shared expertise and resources. Ilona sees potential in closer collaboration with other brands, from a shared specification pipeline for infrastructure projects to support in DIY sales and joint development of lightweight building solutions. Operationally, she values knowledge sharing between production countries, benchmarking, and identifying synergies to help control and reduce costs.
Did you know?
People are often surprised to learn that Ilona can deadlift 75 kg.
Favourite quotes:
Two quotes resonate deeply with her. One, which she often repeats to herself when facing big challenges, is: “How do you eat an elephant? One bite at a time.” It reminds her to stay calm and take things step by step.
The other is something she recently heard on a podcast, quoting Richard Branson: “Business opportunities are like buses — there's always another one coming.” It’s a great reminder not to dwell on missed chances but to stay open and ready for what’s next.
