London-based Tewke, a company focused on energy optimisation
and home automation, has closed its second funding round of £1.5 million. The
round included participation from JamJar Investments, Cur8 Capital, Energy Mix Ventures and Project Ventures, as well as angel investor Vlad Yatsenko,
co-founder and CTO of Revolut.
Read our earlier interview with Tewke co-founders Piers
Daniell and Rowan Dixon.
Founded in 2020 by Piers Daniell and Rowan Dixon, Tewke
develops smart home technology designed to simplify energy management. Its
flagship product, Tap, is designed and engineered in the UK and requires no
rewiring. It works in homes without a neutral wire, making it compatible with
more than 90% of UK housing. The company positions the device as an alternative
to more complex, installer-led smart home systems.
Beyond lighting control, Tap is designed to support household
energy optimisation by helping users shift electricity use in line with
time-of-day tariffs to reduce costs and emissions. It forms part of Tewke’s
broader strategy to improve home energy efficiency through contextual,
AI-driven intelligence. The company develops its core technology in-house,
including patented hardware and firmware as well as its proprietary operating
system, Tewke OS.
Piers Daniell, co-founder and CEO of Tewke, said the
company’s goal extends beyond energy optimisation to creating a more
intelligent, sustainable, and user-centred living environment.
Building next-generation electronics and AI in the UK has
been a monumental technical challenge. Seeing people install Tap in minutes and
start saving energy immediately is a powerful reward. This funding enables us
to scale what we’ve proven works and double down on engineering excellence,
added Rowan Dixon, co-founder of Tewke.
In 2025, Tewke also introduced TewkeAI alongside Google, a
contextual AI framework that uses data from Tap’s nine onboard sensors to
analyse behaviour, movement, air quality, and temperature patterns within the
home.
The funding will support go-to-market execution and the
expansion of Tewke’s engineering team, including the development of neuro-symbolic
AI systems to improve residential energy performance. The company’s growth is
also supported by non-equity funding from Innovate UK.