REDstack
PrivateLast Round
VC Round
Jan 28, 2025
Total Funding Raised
$5.3M
Company Overview
REDstack operates in Energy & Sustainability and is based in Heerenveen. Its latest recorded funding round was a VC Round in January 2025.
REDstack is a clean energy company that develops and commercializes Reverse Electro-Dialysis (RED) technology to generate sustainable energy from salinity gradients.
Sector
Energy & Sustainability
Verticals
Renewable Energy, Water Treatment, Carbon Capture, Circular Economy
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.
REDstack Comparables
Compare REDstack with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Sweetch Energy | 82% | |
| MediSun Energy | 82% | |
| AQUABATTERY | 71% |
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REDstack Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| VC Round | Jan 28, 2025 | ||||
| Grant | Mar 28, 2023 |
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Key People
Founding team and executive leadership
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REDstack Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| PureTerra Ventures | VC Round |
| Waddenfonds | Grant |
Market signals
Structured signals derived from secondary market and firmographic data.
- May 15, 2026
Monthly visitors grew 58% MoM.
- Jan 8, 2026
Monthly visitors increased 35% MoM.
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REDstack 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 REDstack's valuation, stock price, and market status.
Is REDstack a public or private company?
REDstack is a private company.
What is the current stock price of REDstack?
REDstack is a private company, so its shares have no public market price. Caplight tracks REDstack's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.
How much is REDstack worth (valuation)?
Valuation information for REDstack is not publicly available.
Can I buy REDstack stock?
REDstack shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.
When was REDstack's last funding round?
REDstack's most recent funding round was VC Round on January 28, 2025.
Who are the main investors in REDstack?
Key investors in REDstack include PureTerra Ventures.
Will REDstack IPO soon?
No public IPO plans have been announced for REDstack.
How can I track REDstack secondary market activity?
Caplight tracks bids, offers, and trades in REDstack's shares on secondary markets.