Sirenopt
Oakland, US · Founded 2022 · Delaware corporation · 39 employees on LinkedIn · 5 known investors
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Siren Optics builds material analysis systems that use cold atmospheric plasma and AI to perform real-time, non-destructive inspection of materials such as wafers, films, coatings, and battery components. Its PlasmaSens products range from benchtop units to robot-arm and inline systems for quality control in semiconductor, packaging, glass, aerospace, and battery manufacturing.
Founders & leadership
Sirenopt was founded in 2022 by Jared O'Leary and ALI MESBAH.

Board
Investors · 5
How we know: InMotion Ventures's portfolio page · Not right? Tell us
How we know: Wireframe Ventures's portfolio page · the VCSheet dataset · Not right? Tell us
How we know: board seat on SEC Form D · Not right? Tell us
How we know: the VCSheet dataset · Not right? Tell us
Reported raises · per SEC filings
Form D private placements$29.1M disclosed across 2 rounds · 2024–2026
▶$19.4MraisedSep 2026 · 17 investors · ManufacturingRule 506(b)
- JARED O'LEARYExecutive Officer, Director
- ALI MESBAHDirector
- TOM CHIDirector
- MATTHEW BLAINDirector
- PHILIP HARPERDirector
- Offering amount
- $32.4M
- Amount sold
- $19.4M
- First sale
- Sep 2026
- Incorporated
- Corporation, Delaware, 2022
- Federal exemptions
- 06b
▶$9.6MraisedJul 2024 · 17 investors · Other TechnologyRule 506(b)
- Jared O'LearyExecutive Officer, Director, Promoter
- Matthew BlaineDirector
- Offering amount
- $9.6M
- Amount sold
- $9.6M
- First sale
- Jun 2024
- Incorporated
- Corporation, Delaware, 2022
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
Related companies · 2
Companies working in the same space as Sirenopt.
Frequently asked questions
- What does Sirenopt do?
- Siren Optics builds material analysis systems that use cold atmospheric plasma and AI to perform real-time, non-destructive inspection of materials such as wafers, films, coatings, and battery components. Its PlasmaSens products range from benchtop units to robot-arm and inline systems for quality control in semiconductor, packaging, glass, aerospace, and battery manufacturing.
- Who founded Sirenopt?
- Sirenopt was founded by Jared O'Leary, ALI MESBAH in 2022.
- Who are Sirenopt's investors?
- Sirenopt's investors include InMotion Ventures, UNION Labs Ventures, Wireframe Ventures, At One Ventures, Voyager Partners.
- How much funding has Sirenopt raised?
- Sirenopt has disclosed $29.1M raised across 2 rounds.
- Where is Sirenopt headquartered?
- Sirenopt is headquartered in Oakland, US.





