# Top 30 Heat Pump Startups Worldwide by Funding (2026)

> The 30 best-funded heat pump startups worldwide, ranked by total funding raised: $792M combined. With founding year, headquarters and each company's rounds.

Source: https://millionrounds.com/top-lists/heat-pump-startups (Millionrounds; every figure on the page links to its filing or article)

- 1 [**Elvy** Elvy is a Stockholm-based energytech startup founded in 2023, specializing in AI-optimized, subscription-based home energy systems.](https://millionrounds.com/company/elvy) Elvy is a Stockholm-based energytech startup founded in 2023, specializing in AI-optimized, subscription-based home energy systems. *Founded* 2023 Stockholm, Sweden **$595M** last round Oct 2026
- 2 [**Cala Systems** We design, manufacture, and sell the world's first intelligent heat pump water heater.](https://millionrounds.com/company/cala-systems) We design, manufacture, and sell the world's first intelligent heat pump water heater. *Founded* 2020 Boston, United States **$24M** last round Oct 2026
- 3 [**Rendesco** Rendesco's mission is to transform the heating business by creating geothermal networks using ground-source heat pump technology.](https://millionrounds.com/company/rendesco) Rendesco's mission is to transform the heating business by creating geothermal networks using ground-source heat pump technology. *Founded* 2012 London, United Kingdom **$21M** last round Apr 2026
- 4 [**Bradford Energy** Bradford Energy offers an air source heat pump heat network.](https://millionrounds.com/company/bradford-energy) Bradford Energy offers an air source heat pump heat network. *Founded* 2021 London, United Kingdom **$20M** last round May 2023
- 5 [**Zero Homes** Zero Homes is a technology company based in Denver, founded in 2021-2022.](https://millionrounds.com/company/zero-homes) Zero Homes is a technology company based in Denver, founded in 2021-2022. *Founded* 2021 Denver, United States **$17M** last round Feb 2026
- 6 [**HeatTransformers** HeatTransformers is a Netherlands-based technology company founded in 2018, focused on hybrid and all-electric heat pump solutions.](https://millionrounds.com/company/heattransformers) HeatTransformers is a Netherlands-based technology company founded in 2018, focused on hybrid and all-electric heat pump solutions. *Founded* 2018 Woerden, Netherlands **$16M** last round Apr 2023
- 7 [**Kensa Contracting** Kensa Contracting is a consulting firm that design, supply, install, own and operate shared ground heat pumps for various projects.](https://millionrounds.com/company/kensa-contracting) Kensa Contracting is a consulting firm that design, supply, install, own and operate shared ground heat pumps for various projects. *Founded* 2012 Truro, Cornwall, United Kingdom **$14M** last round Apr 2024
- 8 [**ecop Technologies GmbH** ecop Technologies GmbH is an Austrian clean-tech company founded in 2007, with its establishment in Vienna noted in 2011.](https://millionrounds.com/company/ecop-technologies-gmbh) ecop Technologies GmbH is an Austrian clean-tech company founded in 2007, with its establishment in Vienna noted in 2011. *Founded* 2007 Wiener Neudorf, Austria **$12M** last round May 2025
- 9 [**GALVANY** GALVANY is a Green-Tech company based in Berlin that focuses on the heat transition.](https://millionrounds.com/company/galvany) GALVANY is a Green-Tech company based in Berlin that focuses on the heat transition. *Founded* 2021 Berlin, Germany **$12M** last round Jun 2026
- 10 [**Vamo** Vamo specializes in heat pumps and provides proficient guidance and planning, as well as rapid and easy installation.](https://millionrounds.com/company/vamo) Vamo specializes in heat pumps and provides proficient guidance and planning, as well as rapid and easy installation. *Founded* 2022 Köln, Germany **$7.6M** last round Oct 2024
- 11 [**Montamo** montamo is a Berlin-based technology-enabled services company founded in 2023 by Alexander Böhm and Ole Schaumberg.](https://millionrounds.com/company/montamo) montamo is a Berlin-based technology-enabled services company founded in 2023 by Alexander Böhm and Ole Schaumberg. *Founded* 2023 Berlin, Germany **$6.5M** last round Mar 2025
- 12 [**Ecovision** Ecovision Renewable Energy designs and installs solar photovoltaics, heat pumps, biomass, solar thermal and underfloor heating services.](https://millionrounds.com/company/ecovision) Ecovision Renewable Energy designs and installs solar photovoltaics, heat pumps, biomass, solar thermal and underfloor heating services. *Founded* 2006 Tetbury, United Kingdom **$6.0M** last round Aug 2014
- 13 [**Podero** Podero is a clean energy software company based in Vienna, Austria, founded in 2022.](https://millionrounds.com/company/podero) Podero is a clean energy software company based in Vienna, Austria, founded in 2022. *Founded* 2022 Vienna, Austria **$5.7M** last round Feb 2025
- 14 [**EQUIUM** EQUIUM is a French deep-tech company founded in 2017 and based in Saint-Herblain, specializing in acoustic heat pumps that utilize thermoacoustic technology.](https://millionrounds.com/company/equium) EQUIUM is a French deep-tech company founded in 2017 and based in Saint-Herblain, specializing in acoustic heat pumps that utilize thermoacoustic technology. *Founded* 2017 Saint-Herblain, France **$5.4M** last round Jan 2023
- 15 [**nuuEnergy** nuuEnergy is a German company based in Munich, specializing in heat pump installation and heating solutions.](https://millionrounds.com/company/nuuenergy) nuuEnergy is a German company based in Munich, specializing in heat pump installation and heating solutions. *Founded* 2023 Munich, Germany **$5.1M** last round Feb 2026
- 16 [**Installio** Installio is a UK-based clean energy installation company focused on scaling heat pump and clean energy installations across the country.](https://millionrounds.com/company/installio) Installio is a UK-based clean energy installation company focused on scaling heat pump and clean energy installations across the country. *Founded* 2024 London, United Kingdom **$3.8M** last round Nov 2025
- 17 [**Nusku** Nusku makes home heating system using heat pump technology.](https://millionrounds.com/company/nusku) Nusku makes home heating system using heat pump technology. *Founded* 2022 Bristol, United Kingdom **$3.7M** last round Oct 2026
- 18 [**EnergySage** EnergySage is an online marketplace for energy systems, including rooftop solar, community solar, storage, and heat pumps.](https://millionrounds.com/company/energysage) EnergySage is an online marketplace for energy systems, including rooftop solar, community solar, storage, and heat pumps. *Founded* 2009 Boston, United States **$3.5M** last round May 2015
- 19 [**Airthium** Airthium is a French deeptech-greentech startup founded in March 2016, based in Villebon-sur-Yvette, near Paris.](https://millionrounds.com/company/airthium) Airthium is a French deeptech-greentech startup founded in March 2016, based in Villebon-sur-Yvette, near Paris. *Founded* 2016 Les Loges-en-Josas, France **$3.2M** last round Mar 2024
- 20 [**ThermoLift** ThermoLift is developing a disruptive and transformational thermally driven heat pump for heating cooling](https://millionrounds.com/company/thermolift) ThermoLift is developing a disruptive and transformational thermally driven heat pump for heating cooling *Founded* 2012 United States **$2.8M** last round Jul 2015
- 21 [**Sensibo** Sensibo is a technology company focused on smart home climate control solutions.](https://millionrounds.com/company/sensibo) Sensibo is a technology company focused on smart home climate control solutions. *Founded* 2014 Redwood City, United States **$2.6M** last round Sept 2016
- 22 [**Tarnoc** Tarnoc's mission is to accelerate the energy transition to sustainable heating of households.](https://millionrounds.com/company/tarnoc) Tarnoc's mission is to accelerate the energy transition to sustainable heating of households. *Founded* 2019 Delft, Netherlands **$1.4M** last round Jun 2025
- 23 [**NOX Energy** NOX Energy is a Belgian-American startup founded in 2024, dedicated to enhancing energy efficiency by connecting devices like heat pumps to electricity markets.](https://millionrounds.com/company/nox-energy) NOX Energy is a Belgian-American startup founded in 2024, dedicated to enhancing energy efficiency by connecting devices like heat pumps to electricity markets. *Founded* 2024 Antwerp, Belgium **$1.0M** last round Dec 2024
- 24 [**DREM** DREM, or Distributed Renewable Energy Movement, is a leading heat pump installer based in Sweden.](https://millionrounds.com/company/drem) DREM, or Distributed Renewable Energy Movement, is a leading heat pump installer based in Sweden. *Founded* 2022 Stockholm, Sweden **$1.0M** last round Nov 2024
- 25 [**Lumo Energy** Lumo Energy Limited is a UK-based energy optimisation company focused on enhancing the value of residential solar, battery, EV charger, and heat pump systems.](https://millionrounds.com/company/lumo-energy) Lumo Energy Limited is a UK-based energy optimisation company focused on enhancing the value of residential solar, battery, EV charger, and heat pump systems. *Founded* 2023 Cambridge, United Kingdom **$712K** last round Apr 2025
- 26 [**EasyServ** EasyServ develop a system that will allow the service company for heat pumps](https://millionrounds.com/company/easyserv) EasyServ develop a system that will allow the service company for heat pumps *Founded* 2014 Halmstad, Sweden **$551K** last round Apr 2019
- 27 [**Mutha Cuva** Mutha Cuva makes it simple to keep your heat pump running efficiently, your home warm, and your energy bills low.](https://millionrounds.com/company/mutha-cuva) Mutha Cuva makes it simple to keep your heat pump running efficiently, your home warm, and your energy bills low. *Founded* 2025 Newcastle upon Tyne, United Kingdom **$335K** last round Oct 2025
- 28 [**Hex Energy** Hex Energy designs, installs, maintains, and monitors heat pump and solar systems.](https://millionrounds.com/company/hex-energy) Hex Energy designs, installs, maintains, and monitors heat pump and solar systems. *Founded* 2015 Nuneaton, United Kingdom **$313K** last round May 2023
- 29 [**Futraheat** Futraheat is a pioneer in the revolutionary TurboClaw high temperature heat pump technology.](https://millionrounds.com/company/futraheat) Futraheat is a pioneer in the revolutionary TurboClaw high temperature heat pump technology. *Founded* 2021 Surbiton, United Kingdom **$141K** last round Feb 2026
- 30 [**Lighthouse Pools** Lighthouse Pools is the sole distributor of Zodiac Pool Care’s heat pumps.](https://millionrounds.com/company/lighthouse-pools) Lighthouse Pools is the sole distributor of Zodiac Pool Care’s heat pumps. *Founded* 2010 Plymouth, United Kingdom **$52K** last round Dec 2014

**Total funding** how the list is ranked

**15 November 2026** updated nightly

**Rounds we track** source: 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.

## Who backed them?

Open any company for its rounds and investors, or search the investors who back heat pump startups worldwide in the app, with filters, lists and exports.

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## More lists worldwide

[See all](https://millionrounds.com/top-lists?r=Global)

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