A London climate-tech company whose Tap touchscreen light switch fits existing wiring and helps homes cut energy costs by using electricity at cheaper times.
Tewke is a UK smart-home company founded in 2020. Its first product, Tap, is a touchscreen light switch that replaces an ordinary switch and fits an existing back box without any rewiring. A key design feature is that it works in homes with no neutral wire, which the company says covers most UK homes. As well as setting different lighting scenes in each room, Tap shows live electricity prices, helping people use energy when it is cheaper, and has sensors for temperature, air quality, humidity and movement. The company plans to add security, media and thermostat control through software updates, and is developing an AI assistant called TewkeAI.
The company was founded by Piers Daniell, who started an IT consultancy at the age of 15 and later built a telecommunications business, Fluidata, now known as FluidOne. He has said the idea for Tewke came when his family moved into a home with an advanced automation system that was hard to use, and they then saved a lot on their bills by changing tariff and how they used appliances. In an interview, he described the mission as making homes understand how people live, so they can anticipate needs and manage energy intuitively. He also said he wanted to build hardware that stays relevant for about 15 years and improve it with frequent software updates.
A profile in a technology magazine gives Tewke's location as London, and trade press describes it as a UK start-up that develops its hardware, firmware and operating system in-house. It says its work is a hardware and AI platform built entirely in the UK. Tewke is a certified B Corp, belongs to the Made in Britain collective, and won a Red Dot Award for design concept. Tap was shown at the CES technology show in 2025. The first target is about 5,000 switches in UK homes, followed by growth into the US and Middle East, with a cheaper version planned for social housing.
The pages we could read do not name other team members, give a headcount or describe the workplace, so we do not describe the culture. They do show a founder-led company that works closely with electricians and installers, since the product is meant to be fitted in under half a day by a contractor, and presents itself as an opportunity for electrical businesses.
A company like Tewke employs electronics and firmware engineers, software and AI developers, industrial and user-interface designers, installation and customer support staff, and sales and partnership people who work with electricians, builders and housing providers. Its focus on energy and homes suits people interested in climate, design or engineering, and as a young company it likely needs people who can work across several areas.
Website: tewke.com
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