About Membrion
Membrion is an Environment company based in Seattle (United States) founded in 2016. High-performance membranes for flow batteries are developed. Membrion has raised $46.5 million across 15 funding rounds from investors including Samsung Venture Investment, Lam Capital and Indico Capital Partners. Membrion offers products and services including Electro-Ceramic Desalination System and CeramIX Membranes. Its focus areas include Environment Tech, Water and Wastewater Management Tech, Water Treatment and Commercial. Its legal entity is Membrion, Inc. Its competitors include Aclarity, Soane Energy and Hillstone Environmental; 1 of its 3 listed competitors has raised funding.
Company details
Membrion was founded in 2016 and is based in Seattle, United States. Operations focus on the development of ion-exchange membranes within the energy storage sector. High-performance solutions are created to lower costs and enhance efficiency in flow batteries. The initial product targets redox flow batteries, with further applications explored in pharmaceutical purification, fuel cells, and reverse osmosis systems.
- Headquarters Seattle, United States
- SectorsEnvironment
- Email••••••••
- Website membrion.com
- Social LinkedIn X
- Legal Name Membrion, Inc.
- Total Equity Funding$46.5M (USD)
in 15 rounds
- Latest Funding Round$11.33M (USD), Series B
Jun 2025
- InvestorsSamsung Venture Investment
& 16 more
Products & Services of Membrion
Membrion offers a comprehensive portfolio of products and services, including Electro-Ceramic Desalination System and CeramIX Membranes.
System for removing ions from industrial wastewater streams
Membranes designed for treating acidic wastewater efficiently
Funding Insights of Membrion
Membrion has successfully raised a total of $46.5M across 15 strategic funding rounds. The most recent funding activity was a Series B round of $11.33 million completed in June 2025. This substantial capital infusion reflects strong investor confidence in the company's business model, growth potential, and market opportunities. The funding enables strategic expansion, product development, market penetration, and operational scaling to drive long-term value creation and competitive advantage.
- Total Funding $46.5M
- Total Rounds 15
- Last Round Series B — $11.33M
- First Round $225,000
(Dec 2016)
- Investors Count 17
Latest 10 of 15 funding rounds of Membrion with amounts and investors; the two latest post-money valuations are shown, the rest are part of the premium plan.
| Date | Amount | Transaction Name | Valuation | Lead Investors | Investors |
|---|---|---|---|---|---|
| Jun 2025 | $11.33M | Series B | – | – | – |
| Feb 2025 | $1M | Series B | – | – | – |
| Nov 2024 | $1.95M | Series B | – | – | – |
| Aug 2023 | $12.5M | Series B | – | Samsung Venture Investment, Lam Research Capital | – |
| Jan 2023 | $7M | Series B | – | PureTerra Ventures | |
| Sep 2021 | $3M | Series A | – | – | – |
| Jun 2021 | $1.33M | Grant | – | – | |
| Sep 2020 | $256,000 | Grant | – | – | |
| Mar 2020 | $6M | Series A | – | Bellingham Angel Investors | |
| Feb 2019 | $150,000 | Grant | – | – |
17 investors in total: 17 institutional.
Investors in Membrion
Membrion has secured backing from 17 investors, including venture fund and institutional investors. Prominent investors backing the company include Samsung Venture Investment, Lam Capital and Indico Capital Partners.
| Investor | Description | Founded Year | Domain | Location |
|---|---|---|---|---|
Venture capital investments are made in promising startups. | 1999 | samsungventure.co.kr | Seocho, South Korea | |
Investments are made in innovative technology companies by Lam Capital. | lamcapital.com | |||
Venture capital firm investing in seed & series A stage tech companies | indicocapital.com | Lisbon, Portugal | ||
| hbsangelsny.com | ||||
Early-stage technology startups are funded by New York Angels network. | newyorkangels.com | New York, United States | ||
PureTerra Ventures is focused on investing in water technology startups. | pureterra.com | Amsterdam, Netherlands | ||
Safar Partners is engaged in investing in technology startups. | 2018 | safar.partners | Cambridge, United States | |
Early-stage venture capital investments in deep tech health solutions are provided by Freeflow. | 2019 | freeflow.io | Berkeley, United States | |
Early-stage ventures are supported with capital and expertise by this group. | 2005 | bellinghamangelinvestors.com | Bellingham, United States | |
Early-stage venture capital is provided to US companies across sectors. | wrfseattle.org | Seattle, United States |
Investor details for Membrion
The complete investor list, round-by-round participation and investor portfolios require an active premium plan.
- Complete investor list
- Round participation
- Investor portfolios
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People of Membrion
19 people are tracked at Membrion (8 in leadership, 11 in team).
| Name | Role | Group |
|---|---|---|
Greg Newbloom | Founder & CEO | Leadership |
Emily Rabe | Director, R&D | Leadership |
Phil Pickett | COO | Leadership |
Rachel Malone | Chief Of Staff | Leadership |
Samuel Lee | Sales Director | Leadership |
Tracy Bantegui Sweden | Sales Director | Leadership |
Thomas Mitchell | Chief Financial Officer / Chief Operating Officer | Leadership |
Joshua Summers | VP Of Customer Success | Leadership |
Stephanie Candelaria | Senior Research Engineer | Team |
Roland George | Sales And Marketing Associate | Team |
Unnati Rao | Staff Research Engineer | Team |
Eden Rivers | Project Manager | Team |
Aditya Salunkhe | Sr. Research Engineer (customer Success) | Team |
Pim Rowe | Office Manager | Team |
Yiheng Zhang | Consultant | Team |
Ryan Flores | Laboratory Technician | Team |
Josie Rowe | Administrative Assistant | Team |
Mike Botros | Applications Engineering Team Lead | Team |
Logan Sayyadi | Engineer | Team |
Complete people profiles for Membrion
Full employee and board profiles, team structure, tenure and professional contact details require an active premium plan.
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- Team structure
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Timeline of Membrion
3 dated milestones of Membrion across 9 years, from founding to its latest funding, stage changes and deals.
- Founded Membrion is founded.
- Funding First funding round of $225K.
- Funding Latest funding round, Series B, of $11.3M.
Competitors of Membrion
Membrion has 3 listed competitors in our database, 1 of them funded. They include Aclarity, Soane Energy and Hillstone Environmental.
| Company Name | Domain | Founded | HQ Location | Total funding | Employees | Description |
|---|---|---|---|---|---|---|
| aclaritywater.com | 2017 | Hadley, United States | $20.2M | Water treatment solutions are provided via electrochemical oxidation processes. | ||
| soaneenergy.com | 2006 | Cambridge, United States | 8 | Chemical solutions are developed for cleaner oil extraction. | ||
| hillstone-environmental.com | 2015 | Denver, United States | Mobile wastewater treatment technology for oil and gas is provided. |
Detailed competitors of Membrion
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- Full competitor set
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Web traffic of Membrion
The website of Membrion (membrion.com) receives about 3.5K visits a month.
- Monthly visits3.5K
▲ 62.6% vs previous month
Top companies in Waste & Water Management Systems
3 companies that operate in the same segment as Membrion (Waste & Water Management Systems) in United States, ranked by their profile score on The Company Check.
| Company | Description | Founded | Location | Total funding | Revenue | Employees |
|---|---|---|---|---|---|---|
Waste collection and management services are provided nationwide. | 1968 | Houston, Texas, United States | USD 25.2 B | 61,700 | ||
Integrated waste management services are provided nationwide. | 1998 | Phoenix, Arizona, United States | USD 16.59 B | 42,000 | ||
Smart water dispensers with flavored options are provided for offices. | 2013 | Boston, Massachusetts, United States | USD 135.53 M | 102 |
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Related news about Membrion
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Frequently Asked Questions about Membrion
Membrion was founded in 2016.
Membrion is headquartered in Seattle, United States. It is registered at Seattle, Washington, United States.
Membrion is a funded company, having raised a total of $46.5M across 15 funding rounds to date. The company's 1st funding round was a Grant of $150K, raised on Dec 2016.
Membrion was founded in 2016 and is based in Seattle, United States. Operations focus on the development of ion-exchange membranes within the energy storage sector. High-performance solutions are created to lower costs and enhance efficiency in flow batteries. The initial product targets redox flow batteries, with further applications explored in pharmaceutical purification, fuel cells, and reverse osmosis systems.
Membrion's top competitors include Aclarity, Soane Energy and Hillstone Environmental.
Membrion offers Electro-Ceramic Desalination System and CeramIX Membranes.
Membrion has 17 investors. Key investors include Samsung Venture Investment, Lam Capital, Indico Capital Partners, HBS Alumni Angels of Greater New York, and New York Angels.
Membrion operates through Membrion, Inc..