Stirling Ultracold, a brand of Global Cooling Inc., designs and markets a new generation of environmentally friendly ultra-low temperature (ULT) freezers operating between -20°C and -86°C. Unlike conventional compressor or cascade systems, these units are based on patented free-piston Stirling engine technology, originally developed for the energy, aerospace and industrial sectors. Thanks to this innovative technology and a strong commitment to customer experience, Stirling Ultracold offers reliable, sustainable and efficient solutions for preserving biological samples. The company stands out as a leader in decentralised ULT storage and strives to minimise the environmental impact of research while offering long-term value to its users.