Founded in 2020 in London, Tewke develops Tap, a smart light-switch–sized device that installs in minutes and works in homes lacking a neutral wire, covering over 90% of UK housing. Tap’s nine on-board sensors feed data into the firm’s proprietary Tewke OS and the recently introduced TewkeAI framework, enabling contextual, AI-driven optimisation of lighting, heating and other electrical loads to align consumption with time-of-day tariffs. The company designs and patents its own hardware, firmware and operating system in-house. Beyond energy savings, Tewke aims to create a broader intelligent, user-centred living environment through neuro-symbolic AI systems now in development. The new capital will fund go-to-market execution and an expanded engineering team. Tewke’s growth is further supported by non-equity grants from Innovate UK. No revenue or user figures were disclosed.

Total raised

$6M

Funding rounds

2

Latest round

Equity

Latest activity

Feb 2026