Active Membranes
PrivateLast Round
Seed
Jul 9, 2024
Total Funding Raised
$30,000
Momentum
Top 25%
of companies Caplight tracks
Company Overview
Active Membranes operates in Energy & Sustainability and is based in Moorpark, California. Its latest recorded funding round was a Seed round in July 2024.
Active Membranes is a cleantech company that develops and manufactures patented electro-active membranes designed to reduce scaling and fouling in water desalination and treatment processes.
Sector
Energy & Sustainability
Verticals
Water Treatment, Advanced Materials
Business Model
B2B
Customer Profile
Hardware Sales, Services & Consulting, Government Contracts
AI Layer
Non-AI
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Active Membranes Comparables
Compare Active Membranes with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Aqua Membranes | 79% | |
| Swirltex Inc. | 78% | |
| WembraneX | 75% |
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Active Membranes Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Seed | Jul 9, 2024 | ||||
| Grant | Jan 17, 2024 |
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Key People
Founding team and executive leadership
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Active Membranes Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Echo River Capital | Seed |
| UCLA Anderson Venture Accelerator | Grant |
| Natural Ventures | Seed |
Market signals
Structured signals derived from secondary market and firmographic data.
- Aug 21, 2026
Monthly visitors grew 298% MoM, from 466 to 1.9K.
- Jan 20, 2026
Monthly visitors increased 40% MoM.
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Active Membranes Filings
Explore SEC and related filing metadata, where available.
| Type | Date | Amount Offered | Amount Sold | Filing | Pages | Download |
|---|
Filing documents are not displayed on this public page. Request access to learn about available coverage.
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Frequently Asked Questions
Common questions about Active Membranes's valuation, stock price, and market status.
Is Active Membranes a public or private company?
Active Membranes is a private company.
What is the current stock price of Active Membranes?
Active Membranes is a private company, so its shares have no public market price. Caplight tracks Active Membranes's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.
How much is Active Membranes worth (valuation)?
Valuation information for Active Membranes is not publicly available.
Can I buy Active Membranes stock?
Active Membranes shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.
When was Active Membranes's last funding round?
Active Membranes's most recent funding round was Seed on July 9, 2024.
Who are the main investors in Active Membranes?
Key investors in Active Membranes include Natural Ventures.
Will Active Membranes IPO soon?
No public IPO plans have been announced for Active Membranes.
How can I track Active Membranes secondary market activity?
Caplight tracks bids, offers, and trades in Active Membranes's shares on secondary markets.