Myllium Acquires Altenburg & Wymenga for Sustainable Development

Myllium, an international collective of specialist firms dedicated to nature, climate, and sustainable development, has announced its acquisition of Altenburg & Wymenga (A&W), a prominent ecological research consultancy based in Feanwâlden and Amsterdam, Netherlands. This acquisition, which was officially announced on February 20, 2026, marks a significant step in Myllium’s mission to enhance its capabilities in addressing complex environmental challenges.

The newly formed group comprises over 400 experts from seven firms, pooling their knowledge and resources to innovate and lead projects that support both people and the planet. Myllium’s formation responds to the urgent need for effective solutions to combat nature degradation, which poses an existential threat to biodiversity and business sustainability.

Altenburg & Wymenga, known for its strong local anchoring and expertise in ecological research, will contribute significantly to Myllium’s mission. The firm specializes in areas such as ecology, landscape planning, environmental law, and strategic advisory, providing a comprehensive approach to sustainable land and water management.

“By coming together as a culturally aligned collective with a shared purpose, we’ve become even better and stronger,” said a representative from Myllium. “Importantly, while benefiting from our collective strength, we’re also preserving each independent company’s identity and entrepreneurial spirit.”

The acquisition aligns with a growing global demand for advanced nature expertise, driven by evolving regulations and the recognition that biodiversity risk directly impacts businesses worldwide. Myllium aims to become the leading international partner for companies navigating complex nature-related challenges within five years.

As part of the acquisition, the previous owners of A&W, Eddy Wymenga and Wibe Altenburg, have re-invested to become shareholders in Myllium, ensuring a stable foundation for the group’s mission. This strategic move is expected to enhance Myllium’s market position, allowing it to attract larger international clients and innovate solutions for biodiversity risk management.

Looking ahead, Myllium plans to integrate A&W’s operations while maintaining its independent identity. The group will focus on leveraging combined expertise to address environmental challenges and streamline project management through shared methodologies.

In conclusion, Myllium’s acquisition of Altenburg & Wymenga not only strengthens its capabilities in sustainable development but also positions the group to lead in addressing the pressing environmental issues facing businesses today.