# Pascal

> Pascal is a Cambridge, Massachusetts climate-tech company commercializing solid refrigerants to replace the greenhouse-gas coolants that make air conditioners, heat pumps, and refrigerators bad for the climate. Spun out of Harvard in 2023, Pascal builds cooling systems around barocaloric materials - wax-like layered solids that absorb and release heat when squeezed and released - working at pressures low enough to run on today's mass-market HVAC hardware. The company raised an $8M seed round in 2024 and aims to eliminate refrigerant emissions while cutting cost and boosting efficiency.

- **Founded:** 2023
- **Headquarters:** Cambridge, Massachusetts, United States
- **Founders:** Adam Slavney (Co-Founder & CEO), Jinyoung Seo (Co-Founder & CTO), Jarad Mason (Co-Founder & Chief Science Officer)
- **Team size:** ~25 employees
- **Products:** Solid refrigerant materials, Solid-state heat pumps & cooling systems
- **Notable:** Named one of C&EN's 10 Startups to Watch for 2024, Raised $8M seed round led by Engine Ventures with Khosla Ventures, Reduced barocaloric operating pressures by orders of magnitude to below ~10 bar - a first for the material class

## Products & services

- **Solid refrigerant materials** — A new class of barocaloric solids - layered crystals with long, flexible molecular chains that release heat when compressed and absorb heat when released, operating below ~10 bar with zero global warming potential.
- **Solid-state heat pumps & cooling systems** — Cooling and heating devices engineered around the solid refrigerant, designed to be smaller and more efficient than gas systems while remaining compatible with existing HVAC compressors and supply chains.

## Achievements

- Named one of C&EN's 10 Startups to Watch for 2024
- Raised $8M seed round led by Engine Ventures with Khosla Ventures
- Reduced barocaloric operating pressures by orders of magnitude to below ~10 bar - a first for the material class
- Spun a Harvard research discovery into a working proof-of-concept cooling system

## Latest updates

- **2024-05** — Announced $8M seed round led by Engine Ventures, with Khosla Ventures and Blindspot Ventures, to scale from proof-of-concept to a commercially relevant demonstration system.
- **2024-09** — Named one of C&EN's 10 Startups to Watch for 2024.

## Links

- Website: https://pascaltechnology.com
- LinkedIn: https://www.linkedin.com/company/pascal-technologies

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Profile page: https://yespress.io/pascal
Published by YesPress — https://yespress.io
Last updated: 2026-07-03