Hamburg-based 1KOMMA5°, a home electrification startup and ClimateTech unicorn, has extended its €150 million pre-IPO funding round initially closed in December 2024 to accelerate organic growth and scale Heartbeat AI, their energy management software and virtual power plant (VPP).
The extension brings Sabanci Climate Ventures, the ClimateTech investment arm of Sabanci Group, on board as a new shareholder. Existing investors include Hamilton Lane, CalSTRS, G2VP, Porsche Ventures, Eurazeo, b2venture, eCapital, 2150vc, Norrsken, Blue Elephant Ventures, the Haniel and Schürfeld family offices, and Jan Klatten.
Philipp Schröder, CEO and Co-founder of 1KOMMA5°, says: “We are excited to have the backing of another strong long-term investor, supporting us on our way to market leadership in the megamarket of home electrification. Despite two years of recession in Germany and regulatory challenges, we’ve maintained profitable growth.
“With Heartbeat AI, we are now aiming to become the last energy company consumers will ever subscribe to in their lifetime by replacing conventional utilities via AI-based, automated direct electricity procurement – delivering always the cheapest and cleanest electricity, for decades to come!”
Founded in 2021 by Jannik Schall, Micha Grueber, Michael Hinderer, Philip Liesenfeld, and Philipp Schröder, 1KOMMA5° now employs around 2,500 people worldwide and serves over 120,000 customers. They are a ClimateTech startup for CO2-neutral energy, heat and mobility. The company operates around 80 locations in 7 markets worldwide, serving as a one-stop shop for intelligent, integrated energy solutions such as photovoltaics, electricity storage, heat pumps and EV charging stations.
The company says they have continuously grown its revenue and remains profitable in its core hardware solution business, even amid a recession and a declining market for solar and heat pumps across Europe, while making significant investments in Heartbeat AI and its virtual power plant to boost software income.
From 2025 to 2027, the company plans to invest over €100 million in expanding its software business centered around Heartbeat AI. The energy management software currently controls over 500 megawatts of flexibility capacity, making it the largest holistic residential virtual power plant in Europe.
To date, 1KOMMA5° has raised almost €400 million in equity and remains debt-free.
This comes after the February announcement that they achieved a €520 million in revenue for 2024 – growing its organic sales by 36% to €490 million – while remaining debt-free and expanding its Heartbeat AI energy management platform, as reported by EU-Startups.
Read the orginal article: https://www.eu-startups.com/2025/07/german-climatetech-startup-1komma5-extends-e150-million-pre-ipo-round-bring-in-new-investors-and-scale-their-heartbeat-ai/
