NanoSieve
PrivateLast Round
Accelerator
Sep 29, 2025
Total Funding Raised
$207,058
Momentum
Top 50%
of companies Caplight tracks
Company Overview
NanoSieve is a gas safety technology company that develops a platform combining real-time detection and reduction of flammable and toxic gases.
Sector
Frontier & Industrial Tech
Verticals
Energy Management, Environmental Monitoring, Sensors, Defense Tech, Energy Storage
Business Model
B2B
Customer Profile
Hardware Sales, Government Contracts, Hardware + Subscription
AI Layer
Non-AI
Keywords
Historical Pricing
Historical view of private secondary pricing and transaction trends.
NanoSieve Comparables
Compare NanoSieve with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Fortive Corporation | 65% | |
| Carrier Global Corporation | 63% | |
| MSA Safety | 62% |
NanoSieve Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Accelerator | Sep 29, 2025 | ||||
| Grant | Sep 22, 2025 | ||||
| Accelerator | Sep 12, 2025 | ||||
| Accelerator | May 1, 2025 | ||||
| Grant | Oct 3, 2024 | ||||
Grant | Mar 29, 2024 |
NanoSieve Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| EnergyTech Cypher | Accelerator |
| University of Arizona Center for Innovation | Accelerator |
| United States Air Force | Grant |
| PortXL | Accelerator |
| 35 Mules | Grant |
| Department of Energy | Grant |
Market signals
Structured signals derived from secondary market and firmographic data.
- Nov 6, 2025
Monthly visitors increased 63% MoM.
- Sep 29, 2025
Received funding from PortXL.
Recent news
Latest coverage and updates
- attends_eventSep 16, 2026
NanoSieve, Inc. attended event 2026 NSC Safety Congress & Expo on Sep 16th '26.
- recognized_asSep 16, 2026
NanoSieve, Inc. recognized as winner of the 2026 Work to Zero Safety Innovation Challenge at 2026 NSC Safety Congress & Expo on Sep 16th '26.
NanoSieve 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 NanoSieve's valuation, stock price, and market status.
Is NanoSieve a public or private company?
NanoSieve is a private company.
What is the current stock price of NanoSieve?
NanoSieve is a private company with no public stock price. No recent secondary market data is available.
How much is NanoSieve worth (valuation)?
Valuation information for NanoSieve is not publicly available.
Can I buy NanoSieve stock?
NanoSieve shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors. Visit https://www.caplight.com to learn more.
When was NanoSieve's last funding round?
NanoSieve's most recent funding round was Accelerator on September 29, 2025.
Who are the main investors in NanoSieve?
Key investors in NanoSieve include EnergyTech Cypher, University of Arizona Center for Innovation, United States Air Force, PortXL, 35 Mules.
Will NanoSieve IPO soon?
No public IPO plans have been announced for NanoSieve.
How can I track NanoSieve secondary market activity?
Caplight tracks bids, offers, and trades for private companies. Visit https://www.caplight.com to monitor NanoSieve's secondary market activity and sign up for updates.