Membrion
Membrion is a Seattle-based clean technology company and developer of flexible ceramic ion exchange membranes capable of being used in wastewater cleaning and in energy storage solutions.
Seedtable Score
34
Startups
11
Funding Rounds
$48.5m
Money raised
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Funding
Funding series
Funding Series Analysis
The company Membrion has raised a total of $35.76m in funding over 11 rounds.
Key Insights:
- Membrion October 2025 Series B Funding Round: $20m
- Membrion, Inc. Series B round, August 8, 2023: $12.5m
- Membrion, Inc. funding round, September 2021: $3m
- Membrion, Inc. Grant (money), September 9, 2020: $256k
- Membrion, Inc. Series A round, March 2020: $6m
- Membrion, Inc. Grant (money), February 2019: $3.2m
- Membrion, Inc. Seed round, December 2018: $485k
- Membrion, Inc. Seed round, September 2018: $1m
- Membrion, Inc. Grant (money), September 2018: $748k
- Membrion, Inc. funding round, August 2018: $1.35m
Membrion October 2025 Series B Funding Round
$20m
Membrion, Inc. Series B round, August 8, 2023
$12.5m
Membrion, Inc. funding round, September 2021
$3m
Membrion, Inc. Grant (money), September 9, 2020
$256k
Membrion, Inc. Series A round, March 2020
$6m
Membrion, Inc. Grant (money), February 2019
$3.2m
Membrion, Inc. Seed round, December 2018
$485k
Membrion, Inc. Seed round, September 2018
$1m
Membrion, Inc. Grant (money), September 2018
$748k
Membrion, Inc. funding round, August 2018
$1.35m
Industries
Membrion is active in the following industries: