Siemens Mobility has reached a historic milestone in its fiscal year 2025 results, reporting that 87 percent of its total revenue is now fully taxonomy-aligned.
The figure represents the highest level of compliance since the European Union introduced its environmental and social classification system. Additionally, the company maintained 100 percent taxonomy eligibility, confirming that its entire portfolio—spanning high-speed trains, rail infrastructure, and digital signaling software—is capable of contributing directly to the global climate transition.
For investors and public authorities, these audited results provide a transparent guarantee that capital is being channeled into activities that demonstrably reduce environmental footprints.
Circular economy:
The company’s sustainability success is rooted in its Eco-Design methodology, which embeds resource efficiency and circularity into every product from the initial drawing board. A standout achievement in 2025 was the deepening of the green steel supply chain. Approximately one-fifth of the steel volume delivered to Siemens Mobility this year came from the CO₂-reduced greentec steel edition produced by voestalpine.
Furthermore, Siemens Mobility has established a comprehensive circular economy ecosystem. It unites operators and recyclers to ensure that critical materials are recovered and reused at the end of a train’s lifecycle, going beyond standard regulatory requirements.
Thought leadership:
For Siemens, these figures are not just accounting metrics but a reflection of a systematic shift in business operations. Andreas Mehlhorn, Head, Sustainability, Siemens Mobility, highlighted that this performance is becoming a critical competitive advantage in global tenders.
“The EU Taxonomy is becoming increasingly relevant for our customers, financial actors, and public authorities. Our externally audited taxonomy alignment rate of 87 percent underscores our leadership and shows that we are systematically embedding sustainability in our business—from product development and manufacturing to the supply chain.”
Driving global decarbonization:
The impact of Siemens Mobility’s technology is being felt globally, from the 2,000-kilometer high-speed rail network in Egypt to hydrogen-powered trains in Europe. By integrating industrial AI and digital interlocking systems, the company is enabling operators to increase passenger capacity while simultaneously lowering energy consumption.
As the transportation sector continues to face pressure to decarbonize, Siemens Mobility’s 2025 performance serves as a blueprint for how industrial giants can successfully align profitable growth with the planet’s environmental objectives.

