MARUNOUCHI INNOVATION PARTNERS invests in 1KOMMA5

Marunouchi Innovation Partners invested in 1KOMMA5°, the Hamburg-based residential energy company, as a new shareholder through its climate-tech growth fund, in a growth equity round disclosed on 12 October 2026 that valued the business at €1.4bn. Existing shareholders took part alongside it. The round was raised against the company’s own targets rather than audited figures: 1KOMMA5° expected revenue of €450–900M for 2026, growth of 35% to 40%, an EBITDA of €25–50M and an EBITDA margin of [members only], with its hardware business already profitable. At the time it operated in seven countries and employed 3,000 people. The proceeds were earmarked for developing the AI capabilities of its Heartbeat platform and for studying an entry into the United States, a market where the company had considered a listing before shelving those plans in 2025 as renewable energy and trade policy became harder to anticipate. Marunouchi’s experience in climate technologies was presented as support for assessing partnerships and market risk ahead of any launch there.