Pascal, a US-based climate technology startup developing solid refrigerant cooling systems, announced $8.5 million in additional venture funding on October 21, 2026. The financing was co-led by Sazze Partners and LB Investment, with participation from KDB Silicon Valley.
The Watertown, Massachusetts-based company also secured $839,000 in grant funding, comprising a $500,000 grant from the US Department of Energy’s Advanced Research Projects Agency-Energy (ARPA-E), a $239,000 InnovateMass grant and a $100,000 Climatetech Tax Incentives Program award from the Massachusetts Clean Energy Center.
The latest venture investment and grants represent approximately $9.3 million in additional funding, bringing Pascal’s reported total funding to $17.3 million.
Founded in 2023 by Adam Slavney, Jinyoung Seo and Jarad Mason, Pascal emerged from research conducted at Harvard University. Slavney serves as CEO, Seo as CTO and Mason as Chief Science Officer.
Pascal develops cooling technology using solid refrigerants as an alternative to conventional gaseous refrigerants, including hydrofluorocarbons (HFCs). Its materials are designed to operate at pressures comparable to those used in existing refrigeration systems.
According to the company, its solid refrigerants are non-flammable, non-toxic and free from per- and polyfluoroalkyl substances (PFAS). The technology is being developed for applications including commercial refrigeration, air conditioning, industrial cooling and data centers.
Pascal plans to use the new capital to advance its initial commercial deployments with a multinational beverage manufacturer. The startup has completed a working prototype of its pilot refrigerator and is preparing to test the system in a commercial setting.
The planned deployment will assess the technology’s energy efficiency and operating costs. Pascal expects to move into the next phase of the project in early 2027.
The company also opened a 21,000-square-foot headquarters facility in Watertown in September 2026 to expand its engineering, prototyping and testing capabilities.
The funding will support Pascal’s transition from technology development toward commercial applications, initially focusing on beverage refrigeration before pursuing larger cooling systems.
