SirenOpt
PrivateLast Round
Early Stage
VC
Sep 18, 2026
Total Funding Raised
$9.47M
Momentum
Top 1%
of companies Caplight tracks
Company Overview
SirenOpt is an advanced manufacturing technology company that provides a real-time sensing and software platform for the cost-effective production of micro- and nano-materials using cold atmospheric plasma and machine learning.
Sector
Frontier & Industrial Tech
Verticals
Smart Manufacturing, Semiconductors, Sensors, Energy Storage, Advanced Materials
Business Model
B2B
Customer Profile
Hardware + Subscription, Subscription SaaS
AI Layer
Application
Keywords
Historical Pricing
Historical view of private secondary pricing and transaction trends.
SirenOpt Comparables
Compare SirenOpt with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Liminal Insights Inc. | 75% | |
| k-Space Associates, Inc. | 73% | |
| Glimpse | 71% |
SirenOpt Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Early Stage VC | Sep 18, 2026 | ||||
| Grant | Oct 8, 2025 | ||||
| Grant | Sep 1, 2024 | ||||
| Seed | Jul 23, 2024 | ||||
| Accelerator | Apr 4, 2023 |
SirenOpt Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Impact Science | Seed |
| Access Industries | Seed |
| Climate Club | Seed |
| HV Fund | Grant |
| Wireframe Ventures | Seed |
| Voyager Ventures | Grant |
| Berkeley SkyDeck | Seed, Accelerator |
Market signals
Structured signals derived from secondary market and firmographic data.
- Sep 18, 2026
$19.4M raised in early stage VC funding.
- Aug 21, 2026
Monthly visitors grew 109% MoM, reaching 16.7K.
SirenOpt 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 SirenOpt's valuation, stock price, and market status.
Is SirenOpt a public or private company?
SirenOpt is a private company.
What is the current stock price of SirenOpt?
SirenOpt is a private company with no public stock price. No recent secondary market data is available.
How much is SirenOpt worth (valuation)?
Valuation information for SirenOpt is not publicly available.
Can I buy SirenOpt stock?
SirenOpt 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 SirenOpt's last funding round?
SirenOpt's most recent funding round was Series A on October 15, 2025.
Who are the main investors in SirenOpt?
Key investors in SirenOpt include HV Fund, Voyager Ventures, InMotion Ventures.
Will SirenOpt IPO soon?
No public IPO plans have been announced for SirenOpt.
How can I track SirenOpt secondary market activity?
Caplight tracks bids, offers, and trades for private companies. Visit https://www.caplight.com to monitor SirenOpt's secondary market activity and sign up for updates.