Press Release
Constantia Flexibles receives A rating in CDP Supplier Engagement Assessment
Vienna, Austria
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About Constantia Flexibles
Constantia Flexibles is the world’s third-largest producer of flexible packaging. Based on the guiding principle of ‘People, Passion, Packaging’, about 8,500 employees manufacture tailor-made packaging solutions at 37 sites in 18 countries. Many international companies and local market leaders from the consumer and pharma industries choose the products of Constantia Flexibles. Sustainability is a top priority in product development at Constantia Flexibles: the company was rated Platinum by EcoVadis in 2024 and 2025 and earned an A rating for climate change from CDP. www.cflex.com
Biography
Our experts
Prof. Dr.-Ing. Achim Grefenstein
SVP Group R&D
Martina Wagner
VP Group Sustainability
Dr. Dietmar Lenko
Head of Consumer Innovation & Product Sustainability, VP
Prof. Dr.-Ing. Achim Grefenstein
SVP Group R&D
Martina Wagner
VP Group Sustainability
Martina Wagner is Vice President Group Sustainability of Constantia Flexibles since September 2025.
Leading the Group Sustainability team, Martina Wagner is a service partner to internal colleagues for all sustainability-related inquiries at Constantia Flexibles. She is responsible for the internal and external reporting of the company and collaborates along the value chain within various initiatives. For that, Martina Wagner amplifies the environmental ambition throughout the company and with partners on both corporate and product levels.
She knows the industry; she knows the needs. In 2015, Martina Wagner started as a Corporate Sustainability Specialist at Constantia Flexibles, putting the knowledge she gained at the university into practice. Later she changed to the product level. Through her, the company has expanded and strengthened its Life Cycle Assessment (LCA) capabilities, which are now considered one of its USPs. She is science-driven, and her know-how on sustainability and recycling of packaging completes Martina Wagner's profile. Martina Wagner is an indispensable part of the packaging manufacturer and passionately drives fields such as the ESG roadmap. Through her dedication and commitment, Constantia Flexibles made it onto the A-list for Climate Change by CDP in 2021.
Martina Wagner is 32 years old and was born and raised in Vienna, Austria. She received a Master's degree in Bioresources- and Environmental Management at the University of Applied Life Sciences (BOKU) Vienna, focusing on waste & energy management.
Dr. Dietmar Lenko
Head of Consumer Innovation & Product Sustainability, VP
Dietmar Lenko is Head of Consumer Innovation & Product Sustainability, VP since 2025. Moreover, he is Strategic Product Manager Sustainability for Home Care since 2020.
Innovations were raised to a new level at Constantia Flexibles by Dietmar Lenko. Since 2017, he has been steering the Group Innovation portfolio and leading innovation projects with external partners and customers. For this purpose, he has implemented a group-wide innovation project stage gate software. He was vital in developing the innovation strategy, including the Constantia Flexible innovation themes. Design thinking and the creation of a new ideation setup was done to fill the innovation pipeline. In addition to his role as Head of Technical Innovations, Dietmar Lenko is responsible for sustainable product developments in the Home Care area. His greatest successes in recent years have been the introduction of the mono PE laminate EcoLamPlus for standup pouches with zipper and for flowpacks for wet wipes.
Creative ideas that serve the environment and customers drive Dietmar Lenko. Therefore, he gathered extensive know-how as a student and in the industry. Before he joined Constantia Flexibles, he worked as a Program Manager Engineering TDI in Shanghai, where he implemented and qualified new processes to manufacture printed circuit boards used in high-end electronics. Whether it is the sustainability of packaging and its recycling or the development process and design of experiments, he is an expert in the fields of materials, especially polymers, chemistry, and the modification of surfaces.
Dietmar Lenko is 37 years old and was born and raised in Styria, Austria. He received a Master`s degree in Polymer Engineering and Science at the University of Leoben, followed by a Ph.D. at the University of Leoben in Polymer chemistry. In addition to his role at Constantia Flexibles, he is currently a guest lecturer at the FH Joanneum in Graz, Austria. In his leisure time, Dietmar Lenko enjoys traveling the world and doing sports in- and outdoors, like CrossFit, road biking, hiking, and snowboarding.