UniSieve
PrivateLast Round
Series A
Oct 8, 2026
Total Funding Raised
$19.81M
Momentum
Top 1%
of companies Caplight tracks
Company Overview
UniSieve is a cleantech company that develops and manufactures advanced molecular separation membrane technology for industries such as chemical manufacturing and energy to reduce carbon dioxide emissions and operational costs.
Sector
Energy & Sustainability
Verticals
Carbon Capture, Advanced Materials, Clean Manufacturing
Business Model
B2B
Customer Profile
Hardware Sales, Services & Consulting
AI Layer
Non-AI
Keywords
Historical Pricing
Historical view of private secondary pricing and transaction trends.
UniSieve Comparables
Compare UniSieve with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Osmoses | 87% | |
| SepPure Technologies | 83% | |
| Via Separations | 83% |
UniSieve Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Series A | Oct 8, 2026 | ||||
| Seed | Apr 26, 2023 | ||||
| Pre Seed | Nov 4, 2020 | ||||
| Grant | Sep 2, 2020 | ||||
| Accelerator | Oct 24, 2019 | ||||
Grant | Sep 11, 2018 |
UniSieve Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Amadeus Capital Partners | Series A, Seed |
| European Innovation Council Fund | Pre Seed |
| Climate KIC | Pre Seed, Accelerator, Grant |
| Supernova Invest | Series A |
| Founderful | Series A, Seed, Pre Seed |
| Venture Kick | Grant |
| Qemetica Ventures | Seed |
Market signals
Structured signals derived from secondary market and firmographic data.
- Oct 8, 2026
$9M round led by Supernova Invest.
- Apr 26, 2023
$5.5M raised from Qemetica Ventures and Zurcher Kantonalbank.
Recent news
Latest coverage and updates
- receives_financingOct 13, 2026
UniSieve Ltd raises $9M in Series A financing led by Orano Venture Fund, with participation from Amadeus APEX Technology Fund, Founderful, Zürcher Kantonalbank, and Guenat Holding, to expand membrane production in Switzerland on Oct 8th '26.
UniSieve 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.
Request accessFrequently Asked Questions
Common questions about UniSieve's valuation, stock price, and market status.
Is UniSieve a public or private company?
UniSieve is a private company.
What is the current stock price of UniSieve?
UniSieve is a private company, so its shares have no public market price. Caplight tracks UniSieve's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.
How much is UniSieve worth (valuation)?
Valuation information for UniSieve is not publicly available.
Can I buy UniSieve stock?
UniSieve shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.
When was UniSieve's last funding round?
UniSieve's most recent funding round was Series A on October 8, 2026.
Who are the main investors in UniSieve?
Key investors in UniSieve include Supernova Invest, Founderful, Founderful.
Will UniSieve IPO soon?
No public IPO plans have been announced for UniSieve.
How can I track UniSieve secondary market activity?
Caplight tracks bids, offers, and trades in UniSieve's shares on secondary markets.