Seed · Climate Tech · London, United Kingdom · Founded 2022
Boldr is a London-based climate tech startup that retrofits home heating and cooling systems with smart energy-saving products managed through a software platform. Founded in 2022, the company has already shipped over 6,000 units across Europe and North America and has forecasted revenues of $2m. The startup recently raised a $3.2m seed round in 2025 to advance its mission of turning homes into active grid participants, helping homeowners reduce costs while supporting grid operators. Investors include Ada Ventures, Techstars, and Viva Holdings, with the company positioning itself to become the "Apple of home energy".
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