Allatherm

Allatherm SIA is a Latvian engineering company specializing in advanced two-phase heat transfer devices for space thermal management applications, including heat pipes and loop heat pipes. The company develops and manufactures thermal control solutions for satellites and spacecraft, providing passive heat transport systems that enable precise temperature regulation of sensitive onboard electronics and payloads without mechanical pumps or power consumption. Allatherm was founded by two Latvian-based PhDs and has established collaboration relationships with major European and international space organizations including ESA, Airbus Defence and Space, Thales Alenia Space, DLR, and JAXA for thermal control projects. The company has also developed a Xenon Refueling Compressor for the ESA Lunar Gateway programme, expanding its capabilities beyond thermal management into spacecraft fluid handling for future deep space exploration missions. Allatherm contributes to Latvia's growing space technology sector and to European spacecraft thermal engineering capabilities.