Global Cooling, Inc.

Stirling Ultracold manufactures ultra-low temperature (ULT) freezers for laboratory and biomedical sample preservation. The company specializes in -80°C and -100°C freezer systems powered by proprietary free-piston Stirling engine technology, which significantly reduces energy consumption compared to conventional vapor-compression systems. Product lines include the VAULT100 upright ULT freezer (down to -100°C), the SU105UE undercounter compact model, the ULT25NEU portable ultra-low freezer for field and remote site deployment, and standard refrigerators and freezers for precision temperature control. All models utilize natural refrigerants and feature high-density storage capacity suitable for biobanks, research institutions, vaccine storage, and tissue banking. The SU780XLE was the first ULT freezer to achieve ENERGY STAR certification; the company's freezers have received My Green Lab ACT Ecolabel recognition for environmental sustainability. Applications include COVID-19 vaccine cold chain logistics, cancer research biorepositories, hospital lab operations, and remote clinical sites. The company emphasizes operational cost reduction through lower energy draw, reduced HVAC strain, and dependable continuous operation. Manufacturing, service, and support are based in Athens, Ohio. Stirling Ultracold products are available directly and through laboratory supply distributors worldwide.