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Viridian Represents PureTerra Ventures as Anchor Investor in Membrion's $20M Series B-1 Round

Posted by Jen Baroletti | Oct 07, 2025 | 0 Comments

Viridian represented Dutch venture capital fund PureTerra Ventures as a major investor in Membrion's $20 million Series B-1 round. The round included investments from a range of major new and existing investors, including Pangaea Ventures, Ecolab, Inc., and W. L. Gore & Associates. They are joined by The Lewis Family Office and existing investors Safar Partners, Lam Research, Indico Ventures and GiantLeap Capital.

The new round brings total funding for Membrion to $43 million since its inception, fueling rapid growth as it transforms industrial wastewater into a reusable resource through it's provision of adaptive water infrastructure. 
 
Viridian professionals Jeff SpauldingJen Baroletti and Joelle Ingalls advised PureTerra Ventures in the round. 
 
About Viridian
Viridian provides practical and cost-efficient guidance to venture capital funds and emerging companies. For more information, visit Viridian's Emerging Companies webpage. 
 
About PureTerra Ventures
PureTerra Ventures is a specialist venture capital fund focused on investing in disruptive water technologies with great financial returns and a positive social impact. PureTerra Ventures has a global investment scope with its head office in Amsterdam, The Netherlands. The fund combines strong entrepreneurial experience, a proven track record in driving sales and a vast network in the global water technology market to create a unique value proposition for investors and portfolio companies alike.
 
About Membrion

Membrion provides adaptive water infrastructure that helps industrial facilities future-proof their operations. Breakthrough ceramic desalination technology enables manufacturers to recover clean water and critical minerals from the toughest waste streams, ensuring reliability in the face of regulatory shifts, climate pressures, and evolving production demands. Backed by leading investors and Fortune 500 partners, Membrion is shaping the future of industrial infrastructure, where resilience and sustainability are inseparable  Learn more at membrion.com.  

Membrion Press Release: Membrion secures $20 million to lead the future of industrial water circularity | Membrion

About the Author

Jen Baroletti
Jen Baroletti

Jen specializes in startup and emerging companies, focusing on structuring and facilitating private equity financings and financial modeling in connection with raising capital and evaluating strategic transactions.

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