Loading organizations...

§ Private Profile · Oakland, CA, USA
SirenOpt is a technology company.
SirenOpt delivers manufacturing intelligence solutions for nanoscale materials, offering non-destructive, real-time, and inline characterization and classification. Their proprietary platform integrates advanced sensing with specialized software, leveraging cold atmospheric plasma technology, machine learning, and predictive analytics to enhance the cost-effective production of micro- and nano-materials and thin films.
The company was co-founded in 2022 by Jared O'Leary, who holds the CEO position, alongside Professor Ali Mesbah and Joel Paulson. O'Leary, a UC Berkeley PhD, and Mesbah, a UC Berkeley Associate Professor and O'Leary's former advisor, conceived the company with the insight that combining cold plasma sensing with advanced analytics could address critical measurement gaps in materials manufacturing.
SirenOpt's technology is utilized by manufacturers across various sectors, including semiconductors, electronics, batteries, and aerospace, with a particular application in lithium-ion battery component coatings. The company's vision is to empower the creation of superior, safer, and more reliable materials, transforming previously obscured measurement data into actionable, multi-layered material insights for advanced production.
SirenOpt has raised $22.9M across 3 funding rounds.
SirenOpt has raised $22.9M in total across 3 funding rounds.
SirenOpt has raised $22.9M in total across 3 funding rounds.
SirenOpt's investors include Jan Marchewski, InMotion Ventures, California Energy Commission, Voyager Ventures, Founder Collective, LocalGlobe, Shorea Ventures, Visionaries Club, Fredrik Hjelm, Jan Dzulko, Martin Olczyk, Sarah Sclarsic.
SirenOpt is a technology company developing non-destructive, real-time materials characterization platforms using cold atmospheric plasma and machine learning to inspect and control manufacturing processes for advanced materials.[1][2][3][4] Its PlasmaSens™ platform solves critical bottlenecks in defect detection and quality control for industries like batteries, semiconductors, aerospace, power generation, and electronics, enabling faster R&D, higher yields, and sustainable production without destructive testing.[2][3][4] Founded in 2022 and headquartered in Oakland, California (with operations in Berkeley), SirenOpt has raised a $6.6M seed round and a strategic Series A investment, plus $2.4M in California Energy Commission grants, fueling in-line factory deployments planned for early 2026 amid strong customer demand.[1][2][5]
The company serves manufacturers of high-performance micro- and nano-materials, offering benchtop systems for lab analysis, robot-arm mounted tools for piece-to-piece inspection, and roll-to-roll solutions for continuous production lines up to 1.5m wide, targeting substrates like cathodes, anodes, separators, and coatings.[1][4] This addresses pain points in advanced manufacturing where traditional methods are slow, costly, and destructive, positioning SirenOpt for growth in high-throughput sectors driving electrification and smart materials.[2][3]
SirenOpt emerged as a commercial spin-out from the Mesbah Lab in the Chemical & Biomolecular Engineering Department at the University of California, Berkeley, founded in 2022 by Jared O’Leary (CEO & Co-founder), Ali Mesbah, and Joel Paulson.[1][3] The co-founders were researching learning-based methods to characterize, model, and control stochastic systems with nonlinear dynamics, focusing on cold atmospheric plasmas (CAPs)—weakly ionized gases at room temperature—initially for treatment applications.[3]
The pivotal "aha" moment came accidentally: they discovered CAP combined with physics-informed machine learning could create a real-time, non-destructive platform for advanced materials intelligence, transforming plasma systems into a multifaceted material fingerprinting tool.[3] Early traction built on lab validations at their California headquarters, leading to expanded use cases, seed funding of $6.6M in 2024, strategic investment, and grant awards to scale toward factory integrations.[2][5]
SirenOpt rides the wave of advanced materials manufacturing for electrification and sustainability, where demand for batteries, semiconductors, and aerospace components surges amid global pushes for EVs, renewables, and chip sovereignty.[2][4] Timing is ideal: manufacturing yields remain a yield/cost bottleneck due to destructive testing, while AI and plasma tech enable non-destructive, inline QC at scale—critical as roll-to-roll production ramps for gigafactories and next-gen electronics.[1][2][3]
Market forces like U.S. manufacturing resurgence (via grants like California Energy Commission's) and supply chain localization favor SirenOpt's California roots and IP in plasma-ML synergies.[2] It influences the ecosystem by accelerating R&D cycles, boosting material performance (e.g., creep resistance in aerospace), and enabling sustainable processes, potentially reducing waste in high-stakes sectors and democratizing precision inspection beyond labs.[3][4][6]
SirenOpt is primed for explosive growth with 2026 factory deployments, leveraging seed/Series A funds and grants to expand teams and customer pilots in batteries and beyond, targeting a multi-billion-dollar inline inspection market.[2][5] Trends like AI-native manufacturing, plasma tech maturation, and sustainable materials will propel it, as hyperscalers and OEMs demand real-time intelligence for yield optimization. Its influence could evolve from lab innovator to ecosystem enabler, powering defect-free production in the smart materials era—transforming blind spots into the competitive edge that defines next-gen manufacturing.
SirenOpt has raised $22.9M across 3 funding rounds. Most recently, it raised $8.9M Grant / Other Equity in October 2025.
| Date | Round | Lead Investors | Other Investors | Status |
|---|---|---|---|---|
| Oct 14, 2025 | $8.9M Grant | JAN Marchewski, InMotion Ventures | California Energy Commission, Voyager Ventures | Announced |
| Oct 1, 2025 | $7M Series U | — | Founder Collective, LocalGlobe, Shorea Ventures, Visionaries Club, Fredrik Hjelm, JAN Dzulko, Martin Olczyk | Announced |
| Jul 1, 2024 | $7M Seed | Visionaries Club, Sarah Sclarsic | Founder Collective, LocalGlobe, Shorea Ventures, Fredrik Hjelm, JAN Dzulko, Martin Olczyk, Access Industries, Berkeley SkyDeck Fund, Climate Capital, Climate Club, Courtyard Ventures, Impact Science Ventures, Union Labs, Wireframe Ventures | Announced |