Tewke, a London-based company reshaping how homes manage energy, has raised £1.5 million in its second funding round. The round brought together JamJar Investments, Cur8 Capital, Energy Mix Ventures, Project Ventures, and notable angels, including Revolut co-founder and CTO Vlad Yatsenko.
The investment arrives as Tewke’s flagship product, Tap, continues to earn strong acclaim. In a standout review, T3 Magazine called Tap “quite probably the smartest light switch ever made,” noting its potential to become “the Apple of smart home control.” Designed and engineered in the UK, Tap installs without rewiring and works in homes without a neutral wire, making it compatible with over 90% of UK housing stock.
Revealing the total funding raised to TFN, Tewke stated, “Total equity funding to date is £2.75 million (excluding debt and grants).”
With the new funding, Tewke will expand its engineering team to develop neuro-symbolic systems that sharpen this behavioural understanding and further elevate energy performance.
A simple interface with deep intelligence
When asked about the founders’ backgrounds, Tewke told TFN: “Piers Daniell and Rowan Dixon are the co-founders of Tewke. Piers started his first company in his bedroom and then went on to found Fluidata (now Fluid One), a telecoms business which he exited to private equity in 2019. Rowan studied Design Engineering at Imperial before working for Microsoft. They met during COVID as Piers looked to start his next company in the energy industry.”
Founded in 2020, Tewke was built with a clear goal to make smart home technology intuitive, accessible, and sustainable. Daniell, who previously scaled and exited Fluidata, now leads a team focused on cutting unnecessary energy consumption by rethinking the most familiar household interface, the light switch.
The company is chaired by Sir James Wates, Chairman of the RFU and former Chairman of the Wates Group, adding decades of operational and construction expertise to its leadership.
Turning the light switch into a smart energy hub
Tap is more than a lighting controller. It acts as a real-time energy guide, nudging households to shift electricity use to align with time-of-day tariffs. By helping people consume power more cleanly and cheaply, Tap reduces both bills and emissions. This function marks the first step in Tewke’s broader mission to enable homes to manage energy proactively through context-aware, intelligence-driven automation.
Explaining the pain point Tap solves, Tewke said: “They are able to fully automate devices within the home, and act as a universal touch point to control everything from lights, heating, media, to monitoring energy usage and a home’s health. With Tewke’s energy insights, they are able to reduce energy bills in homes by 30%, which they demonstrated in real-world environments via their partnership with Octopus Energy using their Agile Tariff.”
The company’s progress over the past year underscores that vision. Tewke achieved B Corp certification, joined the Made in Britain collective, and won a Red Dot Award for Design Concept. Each milestone reflects a commitment to sustainability, responsible manufacturing, and seamless design.
Building future-ready home intelligence
At Slush 2025, Tewke unveiled TewkeAI alongside Google, a contextual intelligence framework built to interpret data from Tap’s nine onboard sensors. These sensors capture behaviour patterns, movement, air quality, temperature, and other signals that shape how energy is used inside the home.
Tewke develops every layer of its technology internally, including patented hardware, custom firmware, and its own operating system, Tewke OS. Tap’s debut at CES 2025 drew strong interest from installers, distributors, and energy-focused consumers, validating its potential as a scalable mainstream device.
Looking ahead
As Tewke accelerates its market rollout across the UK and prepares for international expansion, it has opened a new funding round to support growth. Additional non-equity funding from Innovate UK further strengthens its roadmap. With Tap as its foundation, Tewke is building a future where every home becomes more efficient, responsive, and resilient, without complexity standing in the way.
Discussing the plan ahead, the company revealed: “Tewke will continue to launch new over-the-air software features to every Tewke Tap, bringing functionality such as advanced room-by-room heating control, video doorbell integrations and advanced automations using the 9 internal sensors in Tewke Tap.”
Furthermore, “Tewke will also be launching a new, more cost-effective product, Tap One. This is in answer to demand from house builders and consumers for a device that has the same level of beautiful design as Tap and its core capabilities, but at a lower price point.”
What about diversity?
Highlighting the team’s structure, the company added: “Tewke has an international team, with over 60% of the team not being British. The team is 20% female.”
Piers Daniell, CEO of Tewke, commented: “Having the backing of some of the UK’s most respected investors, including JamJar and a founder of one of Britain’s most successful tech companies, is a powerful validation of our team, our mission, and the product we’ve built. We’re not just optimising energy; we’re creating a more intelligent, sustainable and user-centred way of living.”
Rowan Dixon, Co-founder, added: “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.”
