Sure Chill

Sure Chill is a cooling technology company that develops and distributes innovative, battery-free refrigeration solutions designed to maintain a constant temperature of 4°C without a continuous power source. Originally developed to protect temperature-sensitive vaccines in developing countries, the company's patented technology utilizes the unique physical properties of water to store thermal energy, providing up to 10–13 days of continuous cooling during power outages. Sure Chill's medical refrigerators are approved by the World Health Organization (WHO), purchased by UNICEF, and supported by major global health organizations like the Bill & Melinda Gates Foundation and Gavi. In March 2025, the company entered administration, with FRP Advisory appointed to manage its affairs.