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
Sensors, Environmental Monitoring, Incident Response, Defense Tech, IoT Hardware
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 Comps
Public and private peers based on sector, stage, and business model.
| Company | Status | Est. Valuation | Rev Multiple |
|---|---|---|---|
| OpenAI | Private | $86.0B | ~40x |
| Cohere | Private | $5.0B | -- |
| Competitor 1 | Public | $XX.XB | XXx |
| Competitor 2 | Public | $XX.XB | XXx |
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.
NanoSieve Filings
SEC and related filings with document metadata.
| Typed | Date | Amount Offered | Amount Sold | Filling | Pages | Download |
|---|---|---|---|---|---|---|
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Frequently Asked Questions
Common questions about NanoSieve's valuation, stock price, and market status.