What is Membrion?
Membrion specializes in producing flexible, electro-ceramic desalination membranes designed for high-efficiency water recovery. These membranes are engineered to yield up to 98% water recovery, even in the most demanding industrial environments. Key advantages include low fouling, reduced cleaning requirements, superior oxidizer resistance, ultra-low pH stability, and overall economic viability. The company's technology opens new possibilities for water recycling in manufacturing processes, enabling operations at previously inaccessible pH levels and with difficult trace chemicals.
How much funding has Membrion raised?
Membrion has raised a total of $57.3M across 8 funding rounds:
Angel/Seed
$1.5M
Series A
$9M
Series B
$7M
Series B
$5.5M
Multiple Rounds
$34.3M
Angel/Seed (2018): $1.5M with participation from Sierra Angels, E8, Sand Hill Angels, and Bellingham Angel Investors
Series A (2021): $9M led by Washington Research Foundation, Bellingham Angel Investors, and SeaChange Fund.
Series B (2023): $7M supported by FreeFlow, Safar Partners, GiantLeap Capital, and PureTerra Ventures
Series B (2023): $5.5M featuring Indico Capital Partners, New York Angels, Harvard Business School Alumni Angels of Greater New York, Samsung Ventures, GiantLeap Capital, and Lam
Private Equity (2025): $11.3M, investors not publicly disclosed
Series B (2025): $20M with participation from Pangaea Ventures, PureTerra Ventures, GORE, and Ecolab
Debt (2025): $1M, investors not publicly disclosed
Debt (2025): $2M, investors not publicly disclosed
Key Investors in Membrion
PureTerra Ventures
PureTerra Ventures is a specialist venture capital firm that invests globally in disruptive water technologies and early-stage water companies. Their mission is to address the growing challenges in the water ecosystem caused by population growth, industrialization, and climate change. They provide funding and support to entrepreneurs developing advanced scientific hardware and AI-driven software solutions aimed at creating a climate-resilient world. With a strong team of water experts and entrepreneurs, PureTerra Ventures is dedicated to scaling innovative water solutions to ensure clean water access for all.
FreeFlow
FreeFlow is an inventory management platform designed to streamline remarketing efforts for businesses dealing with returned, obsolete, or excess stock. It serves as a business-to-business marketplace, allowing clients to efficiently remarket inventory while maintaining control over pricing and buyer participation. With over 20 years of expertise, FreeFlow provides a secure online environment for buyers to bid on inventory from leading brands, enhancing value recovery and sustainability. The platform offers tailored go-to-market strategies and specialized services to help clients optimize their inventory disposition processes.
Safar Partners
Safar Partners is a technology venture fund that focuses on investing in innovative startups emerging from leading universities such as MIT, Harvard, and the University of Rochester. With over $1 billion under management, the firm targets investments in cleantech, AI/IT, robotics, and life sciences, aiming for significant returns while addressing global challenges like climate change and healthcare. Their unique approach combines early-stage investment with a commitment to environmental, social, and governance factors, ensuring a positive impact alongside financial success. Safar's extensive network of academic and industry experts supports portfolio companies throughout their growth journey.
What's next for Membrion?
The substantial enterprise-level funding Membrion has attracted signals a pivotal growth phase for the company. This capital infusion is expected to accelerate the scaling of its manufacturing capabilities and expand its market reach. Strategic investments from prominent venture capital firms specializing in cleantech and industrial innovation suggest a clear trajectory towards broader adoption of Membrion's advanced water recovery solutions. The company is well-positioned to address critical global water scarcity challenges and capitalize on the increasing demand for sustainable industrial water management.
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