Boldr

Save energy & live sustainably with smart home climate products

London, United Kingdom · Founded 2022 · $4.4M raised

Headquarters
London
Founded
2022
Business Model
B2C
Total Funding
$4.4M
Last Round
$3.2M SeedSep 2025
Rounds
2

About

Boldr makes intelligent home climate products that help homeowners save energy and reduce costs. The company's flagship product, the Kelvin smart infrared heater, heats people directly rather than the whole room, allowing users to lower their thermostat while staying comfortable. Boldr also offers smart thermostats for mini-split AC and heat pump systems, enabling remote control, scheduling, and energy monitoring via smartphone. Products are designed for both residential consumers and HVAC contractors.

Summary

Boldr is a Clean Tech company based in London, United Kingdom, founded in 2022. It has raised $4.4M in total across 2 rounds, most recently a $3.2M Seed round in Sep 2025. Investors include Ada Ventures, Unconventional Ventures and Inclimo Climate Tech.

Tech & App Stack

7 technologies & apps tracked

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Funding History

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SeedSeed RoundSep 2025
$3.2M

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Seed — per-round amounts, valuations, and who invested in each round.

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