Ecovative, a pioneer in mycelium-based technologies for sustainable food and materials, today announced the sale of its Netherlands-based subsidiary, Ecovative Spawn & Substrate BV, to the Klerken family, founders of Scelta Mushrooms.

Under the Klerken family’s ownership, the business will be renamed OurCelia, marking a new chapter in its support of the mushroom industry and introducing new solutions to mushroom farmers globally. This transition reflects a marriage of strengths: Ecovative’s leadership in mycelium innovation, stretching two decades, and the Klerken family’s deep roots in the global mushroom industry, dating back to 1963. Together, the two organizations will maintain a close, long-term relationship to advance the supply of world-class spawn products to both mushroom and mycelium producers. Ecovative previously acquired Lambert Spawn Netherlands in 2022 from its U.S. parent company, Lambert Spawn, founded in 1919 and recognized as the world’s oldest spawn producer. With this foundation, the Dutch spawn activities are now continuing under the Klerken family as OurCelia.

“Ecovative is proud to have grown the global supply chain for Agaricus and AirMycelium spawn from the Netherlands, and we are confident that under the Klerken family’s stewardship, OurCelia will thrive as a dedicated supplier to mushroom growers and mycelium producers worldwide,” said Eben Bayer Co-founder and CEO, Ecovative. “This step allows Ecovative to sharpen its focus on scaling AirMycelium production across our food and materials businesses in the United States, while ensuring the Dutch spawn business continues to serve the industry with excellence.” “The mushroom industry has been at the heart of our family for generations,” said Jan Klerken Sr., founder of Scelta Mushrooms. “With OurCelia, we are building on that heritage by expanding our business to include spawn and substrate production. This is a natural continuation of our commitment to advancing mushroom cultivation and supporting growers for decades to come.” In addition, Ies Hooglugt will continue in his role as managing director, ensuring continuity and trusted leadership for employees, customers, and partners of the company

Looking Ahead with OurCelia

For the Klerken family, OurCelia is more than a new company — it is a bold step to shape the future of the mushroom industry. With deep roots that stretch back generations, the family has always believed in the power of mushrooms to nourish people and transform industries. OurCelia will build on that legacy by reimagining spawn and substrate production for a new era, delivering cutting-edge solutions that help mushroom farmers grow stronger businesses, diversify their crops, and expand into new markets. By combining tradition with forward-looking innovation, the Klerken family aims to make OurCelia a global leader in advancing fungi as a cornerstone of sustainable food, agriculture, and materials for decades to come.

About OurCelia

OurCelia is a Dutch producer of high-quality mushroom spawn and substrates, rooted in decades of expertise within the global mushroom industry. Founded in 2025 following the acquisition of Ecovative Spawn & Substrate BV by the Klerken family, also founders of Scelta Mushrooms, the company builds on a long heritage of innovation and entrepreneurship in mushroom cultivation. By combining tradition with cutting-edge technologies, OurCelia supports growers worldwide with reliable, sustainable solutions that strengthen their businesses and open new opportunities for the future.