Ahlstrom’s 2025 net sales remained resilient in a challenging market environment, amounting to €2.93 billion ($3.46 billion), down 1.2%. At constant currency, net sales increased by 1.4% in 2025, primarily driven by the acquisition of Stevens Point in May 2025. Adjusted for the business portfolio changes, including the acquisitions of Stevens Point and EBF as well as the divestment of the Aspa pulp mill and Abrasives and currency fluctuations, net sales declined 0.4%. At constant currency, Core divisions grew 9.4% and 1% excluding acquisitions.

In May 2025, Ahlstrom introduced a new segmental structure, transitioning from three to four reporting segments. The reporting segments are Filtration & Life Sciences, Protective Materials, Food & Consumer Packaging and Performance Material Cluster. In 2025, net sales were €775.5 million ($915.4 million) for Filtration & Life Sciences, €800.1 million ($944.4 million) for Protective Materials, €807.2 million ($952.8 million) for Food & Consumer Packaging,and €604.7 million ($713.7 million) for the Performance Material Cluster.

“In 2025, Ahlstrom strengthened its position as a leading sustainable specialty materials company through disciplined execution of our strategic agenda,” says Helen Mets, president and CEO. “We continued to strengthen our portfolio with the acquisitions of Stevens Point operations in Food & Smart Packaging and EBF in Lab & Life Sciences, while divesting the non-core Abrasives businesses. Despite a softer market environment, we delivered resilient net sales and improved profitability, driven by our disciplined pricing, procurement savings and acquisitions. Our innovation pipeline and commitment to sustainability have progressed; innovative products now represent 33% of our sales, and 66% of our offerings are now Safe and Sustainable by Design. We achieved record employee safety (TRIR) and eNPS scores and see our deep customer relationships reflected in our continued top decile customer loyalty scores.  
 
“Looking ahead to 2026, our refined strategy and recent acquisitions provide strong momentum. We remain committed to safety, reliability and continuous improvement, leveraging digital and AI solutions. Thank you to our employees, customers, suppliers and partners for your ongoing support as we continue to build Ahlstrom’s leadership in specialty materials.” 

Strategic Roadmap 

Ahlstrom is streamlining its Wisconsin manufacturing strategy by right-sizing the Mosinee site. This includes closing the pulp mill and two older paper machines this year, while upgrading the two remaining paper machines with advanced technologies and automation.  

In addition, Ahlstrom has also announced the initiation of a formal consultation process concerning the potential closure of the Radcliffe (U.K.) site. A decision will be taken pending the outcome of the consultation.