Top list · Worldwide

Cooling tech startups worldwide

74 cooling tech startups worldwide have raised money in rounds we track. These are the 50 that have raised the most, $719M between them, with the United States the most common home.

$719Mraised by these 50
74on our record in all
United Statesmost common home
Submerraised the most
  1. 1SubmerSubmer is a cleantech company based in Barcelona, founded in 2015 by Daniel Pope and Pol Valls.

    Submer is a cleantech company based in Barcelona, founded in 2015 by Daniel Pope and Pol Valls.

    Founded 2015Rubi, Spain$76Mlast round Dec 2024
  2. 2AccelsiusAccelsius is a technology company based in Austin, Texas, specializing in advanced liquid cooling solutions for data centers, high-performance computing (HPC),

    Accelsius is a technology company based in Austin, Texas, specializing in advanced liquid cooling solutions for data centers, high-performance computing (HPC),

    Founded 2022Austin, United States$65Mlast round Jan 2026
  3. 3Turbine Air SystemsTurbine Air Systems designs and manufactures modular cooling and energy systems for a wide range of industries.

    Turbine Air Systems designs and manufactures modular cooling and energy systems for a wide range of industries.

    Founded 1999Houston, United States$62Mlast round Sept 2013
  4. 4Dandelion EnergyDandelion Energy is a leading residential geothermal company based in Mount Kisco, New York.

    Dandelion Energy is a leading residential geothermal company based in Mount Kisco, New York.

    Founded 2017Mount Kisco, United States$56Mlast round Jul 2026
  5. 5IceotopeIceotope is a Sheffield-based technology company founded in 2005, specializing in precision liquid cooling solutions for data centers, high-performance computin

    Iceotope is a Sheffield-based technology company founded in 2005, specializing in precision liquid cooling solutions for data centers, high-performance computin

    Founded 2005Catcliffe, United Kingdom$48Mlast round Jul 2022
  6. 6BeneChillBeneChill is a medical device company developing non-invasive cooling technologies for the healthcare industry.

    BeneChill is a medical device company developing non-invasive cooling technologies for the healthcare industry.

    Founded 2004United States$36Mlast round Feb 2013
  7. 7TitanX Engine CoolingTitanX Engine Cooling provides engine cooling solutions to trucks, buses, off-highway equipment and industrial diesel engine manufacturers.

    TitanX Engine Cooling provides engine cooling solutions to trucks, buses, off-highway equipment and industrial diesel engine manufacturers.

    Founded 1961Sölvesborg, Sweden$29Mlast round Mar 2013
  8. 8CorintisCorintis is a Swiss semiconductor technology company based in Lausanne, specializing in microfluidic cooling solutions for high-power chips used in artificial i

    Corintis is a Swiss semiconductor technology company based in Lausanne, specializing in microfluidic cooling solutions for high-power chips used in artificial i

    Founded 2022Lausanne, Switzerland$25Mlast round Dec 2025
  9. 9BarocalBarocal is a Cambridge University spin-out founded in 2019, focused on developing solid-state cooling and heating technologies.

    Barocal is a Cambridge University spin-out founded in 2019, focused on developing solid-state cooling and heating technologies.

    Founded 2019Cambridge, United Kingdom$23Mlast round May 2026
  10. 10Water HorizonWater Horizon is a French deep-tech startup focused on sustainable energy solutions, particularly in industrial waste heat recovery and low-carbon cooling and heating.

    Water Horizon is a French deep-tech startup focused on sustainable energy solutions, particularly in industrial waste heat recovery and low-carbon cooling and heating.

    Founded 2017Cugnaux, France$21Mlast round Nov 2025
  11. 11LiquidStackLiquidStack isa liquid cooling that provides hyperscale, edge, and computing.

    LiquidStack isa liquid cooling that provides hyperscale, edge, and computing.

    Founded 2012Marlborough, United States$20Mlast round Sept 2024
  12. 12Geothermal InternationalGeothermal International is involved in the design and installation of heating and cooling systems.

    Geothermal International is involved in the design and installation of heating and cooling systems.

    Founded 2000United Kingdom$19Mlast round Dec 2011
  13. 13JETCOOL TechnologiesJETCOOL Technologies is a hardware startup that develops compact cooling solutions for high-power electronics.

    JETCOOL Technologies is a hardware startup that develops compact cooling solutions for high-power electronics.

    Founded 2019Littleton, United States$17Mlast round Oct 2023
  14. 14Kiutrakiutra GmbH is a deep-tech company based in Munich, Germany, focused on developing and manufacturing cryogen-free cooling solutions for quantum technologies.

    kiutra GmbH is a deep-tech company based in Munich, Germany, focused on developing and manufacturing cryogen-free cooling solutions for quantum technologies.

    Founded 2018Munich, Germany$15Mlast round Oct 2025
  15. 15Cooltech ApplicationsCOOLTECH provides cleantech solutions based on magneto caloric cooling, replacing traditional gas cooling systems.

    COOLTECH provides cleantech solutions based on magneto caloric cooling, replacing traditional gas cooling systems.

    Founded 2003France$12Mlast round Dec 2013
  16. 16Infinite CoolingInfinite Cooling is a renewables and environment company that specializes in wastewater management and recycling.

    Infinite Cooling is a renewables and environment company that specializes in wastewater management and recycling.

    Founded 2017Cambridge, United States$12Mlast round Nov 2026
  17. 17Bedrock EnergyBedrock Energy is a clean-tech company based in Austin, Texas, founded in 2022.

    Bedrock Energy is a clean-tech company based in Austin, Texas, founded in 2022.

    Founded 2022Austin, United States$12Mlast round Jan 2025
  18. 18VigilentVigilent is a software company based in Oakland, California, specializing in AI-driven cooling plant optimization for data centers and mission-critical facilities.

    Vigilent is a software company based in Oakland, California, specializing in AI-driven cooling plant optimization for data centers and mission-critical facilities.

    Founded 2008Oakland, United States$11Mlast round Jun 2013
  19. 19NovoLINCNovoLINC is a thermal interface materials startup located in Pittsburgh, Pennsylvania.

    NovoLINC is a thermal interface materials startup located in Pittsburgh, Pennsylvania.

    Founded -Pittsburgh, United States$10Mlast round Dec 2025
  20. 20Attune MedicalNow part of Haemonetics!

    Now part of Haemonetics!

    Founded 2009Chicago, United States$10Mlast round Oct 2017
  21. 21CoolIT SystemsCoolIT Systems is engaged in the design and manufacture of electronic cooling systems and system integration services.

    CoolIT Systems is engaged in the design and manufacture of electronic cooling systems and system integration services.

    Founded 2001Calgary, Canada$10Mlast round Oct 2011
  22. 22blue activityBlue Activity GmbH is a CleanTech startup based in Heidelberg, Germany, founded in 2019.

    Blue Activity GmbH is a CleanTech startup based in Heidelberg, Germany, founded in 2019.

    Founded 2021Heidelberg, Germany$9.8Mlast round Mar 2026
  23. 23Amulaire Thermal TechnologyAmulaire Thermal Technology was established in June, 2011.

    Amulaire Thermal Technology was established in June, 2011.

    Founded 2011New Taipei City, United States$9.5Mlast round Apr 2009
  24. 24Maxwell LabsMaxwell Labs is pioneering high performance radiative cooling technology for next-generation data centers, transforming heat into light.

    Maxwell Labs is pioneering high performance radiative cooling technology for next-generation data centers, transforming heat into light.

    Founded 2019Saint Paul, United States$7.9Mlast round Feb 2026
  25. 25CryogenxCryogenx is a London-based medical device manufacturer established in 2019.

    Cryogenx is a London-based medical device manufacturer established in 2019.

    Founded 2019London, United Kingdom$7.6Mlast round Aug 2026
  26. 26Sure ChillSureChill is a technology company focused on providing innovative cold storage solutions for the healthcare and pharmaceutical sectors.

    SureChill is a technology company focused on providing innovative cold storage solutions for the healthcare and pharmaceutical sectors.

    Founded 2009Cardiff, United Kingdom$6.5Mlast round Jul 2019
  27. 27StrataphyStrataphy is a deep-tech geothermal cooling company based in Al Khobar, Saudi Arabia, founded in 2025.

    Strataphy is a deep-tech geothermal cooling company based in Al Khobar, Saudi Arabia, founded in 2025.

    Founded 2025Al Khobar, Saudi Arabia$6.0Mlast round Nov 2025
  28. 28MegaCool TechnologiesCooling AI efficiently with generative-designed, scalable hardware

    Cooling AI efficiently with generative-designed, scalable hardware

    Founded -Leuven, Belgium$5.9Mlast round Feb 2026
  29. 29HysoptHysopt is a software company that offers HVAC simulation and calculation software to improve a building's heating and cooling installations.

    Hysopt is a software company that offers HVAC simulation and calculation software to improve a building's heating and cooling installations.

    Founded 2013Deurne, Belgium$5.5Mlast round Nov 2022
  30. 30Axiom CloudAxiom Cloud is an AI-powered refrigeration management software company based in San Jose, California.

    Axiom Cloud is an AI-powered refrigeration management software company based in San Jose, California.

    Founded 2014San Jose, United States$5.0Mlast round Feb 2024
  31. 31Skycool SystemsSkyCool Systems is a cleantech company based in Mountain View, California, founded in 2016.

    SkyCool Systems is a cleantech company based in Mountain View, California, founded in 2016.

    Founded 2016Mountain View, United States$5.0Mlast round Aug 2023
  32. 32GridFree AIGridFree AI is a data center infrastructure company based in The Woodlands, Texas, specializing in grid-independent power and cooling solutions for AI and hyper

    GridFree AI is a data center infrastructure company based in The Woodlands, Texas, specializing in grid-independent power and cooling solutions for AI and hyper

    Founded 2025Spring, United States$5.0Mlast round Jun 2025
  33. 33ActasysActasys is a development-stage company based in Brooklyn, NY, specializing in advanced hardware and software solutions for sensor cleaning, thermal management c

    Actasys is a development-stage company based in Brooklyn, NY, specializing in advanced hardware and software solutions for sensor cleaning, thermal management c

    Founded 2013New York, United States$5.0Mlast round Dec 2020
  34. 34QuoherentQuoherent is a quantum computing startup located in Huntsville, Alabama.

    Quoherent is a quantum computing startup located in Huntsville, Alabama.

    Founded 2021Winston-Salem, United States$4.7Mlast round Oct 2023
  35. 35OctaiPipeOctaiPipe is an AI-powered optimisation software solution that delivers up to 30% savings in cooling energy use with zero disruption.

    OctaiPipe is an AI-powered optimisation software solution that delivers up to 30% savings in cooling energy use with zero disruption.

    Founded 2016London, United Kingdom$4.3Mlast round Dec 2025
  36. 36OxiCoolOxiCool develops environmentally-friendly cooling units and air conditioning technologies.

    OxiCool develops environmentally-friendly cooling units and air conditioning technologies.

    Founded 2006United States$3.8Mlast round Mar 2014
  37. 37Silent PowerSilent Power is a renewable energy company based in Bahrain, founded in 2019 and headquartered in Sanabis, Manama.

    Silent Power is a renewable energy company based in Bahrain, founded in 2019 and headquartered in Sanabis, Manama.

    Founded 2018Manama, United States$3.5Mlast round Sept 2011
  38. 38NeoCarbonNeoCarbon is a Berlin-based climate tech company founded in 2021.

    NeoCarbon is a Berlin-based climate tech company founded in 2021.

    Founded 2021Berlin, Germany$3.5Mlast round Dec 2023
  39. 39TempronicsTempronics develops solid-state cooling and power generation system that converts waste heat into electricity in automobiles and industrial processes.

    Tempronics develops solid-state cooling and power generation system that converts waste heat into electricity in automobiles and industrial processes.

    Founded 2006Tucson, United States$3.4Mlast round Mar 2010
  40. 40HYBRICO Energy TechnologiesHYBRICO Energy Technologies is a software-enabled energy solutions provider based in Guatemala City.

    HYBRICO Energy Technologies is a software-enabled energy solutions provider based in Guatemala City.

    Founded 2016Ciudad de Guatemala, Guatemala$3.2Mlast round Dec 2023
  41. 41ChromasunChromasun manufactures high temperature micro-concentrators for solar cooling and process heating applications.

    Chromasun manufactures high temperature micro-concentrators for solar cooling and process heating applications.

    Founded 2008San Jose, United States$3.0Mlast round Apr 2010
  42. 42STAC TechnologySTACs Technology zero-emissions cooling solutions upcycle the District Energy industry's services and reach

    STACs Technology zero-emissions cooling solutions upcycle the District Energy industry's services and reach

    Founded 2016Hellerup, Denmark$3.0Mlast round Jul 2022
  43. 43NelumboNelumbo is Providing radical, lasting technological improvements to the heating and cooling industry.

    Nelumbo is Providing radical, lasting technological improvements to the heating and cooling industry.

    Founded 2015Menlo Park, United States$2.9Mlast round May 2024
  44. 44ThermoLiftThermoLift is developing a disruptive and transformational thermally driven heat pump for heating cooling

    ThermoLift is developing a disruptive and transformational thermally driven heat pump for heating cooling

    Founded 2012United States$2.8Mlast round Jul 2015
  45. 45BaryonBaryon develops energy efficiency technologies with applications in building cooling, water production, cold chain, and others.

    Baryon develops energy efficiency technologies with applications in building cooling, water production, cold chain, and others.

    Founded -Wilmington, United States$2.1Mlast round Aug 2021
  46. 46American DG EnergyAmerican DG Energy Inc.

    American DG Energy Inc.

    Founded 2001Waltham, United States$2.1Mlast round Oct 2010
  47. 47Gyre EnergyGyre Energy is an Oxford-based company that develops AI-powered software solutions for the cooling and refrigeration industry.

    Gyre Energy is an Oxford-based company that develops AI-powered software solutions for the cooling and refrigeration industry.

    Founded 2025London, United Kingdom$2.1Mlast round Jul 2026
  48. 48Mater-AIMater-AI is a UK-based startup founded in 2023 that focuses on developing AI-driven thermoelectric materials.

    Mater-AI is a UK-based startup founded in 2023 that focuses on developing AI-driven thermoelectric materials.

    Founded 2023London, United Kingdom$2.0Mlast round Dec 2025
  49. 49Harvest ThermalHarvest Thermal develops a control system for home use that integrates heating, hot water, and cooling with thermal storage.

    Harvest Thermal develops a control system for home use that integrates heating, hot water, and cooling with thermal storage.

    Founded 2019Berkeley, United States$2.0Mlast round Sept 2024
  50. 50SolarSubSolarSub is an environmental firm that offers floating solar cooling system.

    SolarSub is an environmental firm that offers floating solar cooling system.

    Founded -Edinburgh, United Kingdom$1.8Mlast round Sept 2026
Total fundinghow the list is ranked
15 November 2026updated nightly
Rounds we tracksource: Millionrounds

Companies whose own description names this theme, ranked by the total they have raised in rounds we hold. Nobody pays to be on a list.

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