HeatVentors secures €4 Million in Series A to accelerate global expansion of intelligent thermal batteries

HeatVentors Kft., a pioneer in intelligent thermal energy storage, has successfully closed its €4.032 million Series A funding round to drive international growth and scale its breakthrough technology. The capital will reinforce HeatVentors’ technical infrastructure, accelerate product development for multi-megawatt hour storage applications, and support entry into strategic markets such as data centers, district heating networks, and large-scale cooling systems – with a particular focus on the Europe and Middle East, where cooling demand is exceptionally high.

Source: HeatVentors

Founded in 2017, HeatVentors develops and manufactures proprietary Intelligent Thermal Batteries that, combined with advanced regulation technology, deliver up to 25% energy savings in both cooling and heating systems. These versatile solutions enable renewable energy storage, waste heat recovery, data centre cooling and reliable HVAC operations. HeatVentors’ technology is already deployed in seven countries, with nearly 80 storage units installed, including in Hungary, Germany, Oman, and Portugal.

HeatVentors’ solutions are trusted by 4- and 5-star hotels, leading industrial manufacturers, modern office buildings, major international insurers, and key players among global energy giants.

The Series A round was led by a prominent international consortium of investors: Kék Bolygó Klímavédelmi Magántőkealap (Blue Planet Venture Capital Fund - Hungary), InnoEnergy – pan European impact investor, and Impulsus Clean Technologies GmbH (Germany), with V3 Partners Investment Zrt. (Hungary) serving as investment advisor. Their support marks a crucial milestone in HeatVentors’ expansion strategy.

“Energy storage has become recognized across virtually all major markets as an indispensable enabler of decarbonization,” said József Kakas, CEO of HeatVentors Kft. “This investment not only positions our intelligent thermal battery systems for global prominence, but also fortifies our technological capabilities for international scale-up – catalyzing our global expansion.”

About the Investors

• Kék Bolygó Klímavédelmi Magántőkealap (Blue Planet Venture Capital Fund) invests in innovative, technology-driven companies that support Hungary’s environmental and climate protection goals, with a focus on sustainable development, emissions reduction, renewable energy, energy storage, and the circular economy.

• InnoEnergy is industrialising clean tech innovation to enable and grow a global net zero economy. Active in Europe and the US, the company invests in early-stage start-ups and the current and future workforce, building resilient clean tech value chains that drive sustainable economic growth. Through its ecosystem – with 1,400 partners and 39 shareholders spanning industry, finance, public policy, and academia – the company scales the energy transition at speed. Today, InnoEnergy supports 160+ clean tech start-ups and scale-ups, 4 of which are industrial unicorns. These companies have raised more than €30 billion to date, created 40,000 jobs, and are on track to generate €110 billion in revenue and reduce 2.1 gigatons of CO2 by 2030. Its first investment into the company was made in 2019.

• Impulsus Clean Technologies GmbH acts as a corporate investor and enabler for innovative startups in wind energy, e-mobility, and recycling, fostering sustainable industrial ventures.