69 Best Hardware Startups in London to Watch in 2025

The Definitive Seedtable Ranking of Hardware Startups in London

We track 71,000+ companies and rank them dynamically using our Seedtable Score – a score that uses quantitative and qualitative data points to signal the momentum behind a company. We then monitor the list manually leveraging our expertise as founders and investors.

There are 80 start-ups with an aggregate funding of $4.5b. The average funding per company in this subset is $65.2m.

Last update to the database: Sep 2, 2025. See changelog.

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8

Funding Rounds

$204.2m

Money raised

Elvie is a London-based consumer electronics company making sexual health and pregnancy products for women.

Location:

Key people:

1

Funding Rounds

$16.0m

Money raised

An educational technology company with a focus on STEAM lesson plans involving computers. It has offices around the world, the main one being in London, England. It was founded in 2014.

Location:

Key people:

6

Funding Rounds

$66.7m

Money raised

PhaseCraft is a quantum algorithms developer founded in 2018 by Ashley Montanaro, John Morton and Toby Cubitt.

Location:

Key people:

4

Funding Rounds

$149.0m

Money raised

An artificial intelligence company that is developing the technology to automate computer numerical control milling machines. It is located in London, England and was founded in 2015.

Location:

Key people:

13

Funding Rounds

$2.0b

Money raised

SumUp is a payments processing platform for small businesses founded in 2012 by Stefan Jeschonnek.

1

Funding Rounds

Audio technology company using artificial vocal recognition for music creation

3

Funding Rounds

$30.0m

Money raised

A company developing a scalable and modular quantum computer powered by photonics.

Location:

Key people:

1

Funding Rounds

$2.7m

Money raised

An artificial Intelligence company that has developed a wearable device for voice communications. It is located in London, England and was founded in 2017.

2

Funding Rounds

$14.0m

Money raised

Neurofenix invented the NeuroBall, an intelligent controller for special video games, aimed at making stroke rehabilitation fun.

Location:

Key people:

2

Funding Rounds

$9.8m

Money raised

Quantum Motion is a company that develops scalable arrays of qubits using CMOS silicon processes.

Location:

Key people:

1

Funding Rounds

$6.6m

Money raised

A company that creates software automates the design of electronic circuits. It is located in London, England and was founded in 2018.

4

Funding Rounds

$442.0m

Money raised

Arrival is a London based company developing and manufacturing zero-emission, public transportation vehicles.

Location:

Key people:

1

Funding Rounds

$1.2m

Money raised

Bonnet is a company developing an app that acts as one subscription for all EV charging networks.

7

Funding Rounds

$358.0m

Money raised

Operator of an online car auction platform designed to facilitate the sale of used cars.

7

Funding Rounds

$24.1m

Money raised

Robotic underfloor insulation solutions provider for energy-efficient homes.

Location:

Key people:

10

Funding Rounds

$148.5m

Money raised

Infogrid is an AI-driven building monitoring tech founded in 2018.

2

Funding Rounds

$3.5m

Money raised

A company offering an in-home male fertility test and mobile application.

Location:

Key people:

3

Funding Rounds

$23.4m

Money raised

Recycleye Ltd is an AI-automated waste management founded in 2019.

2

Funding Rounds

$24.5m

Money raised

Soter Analytics uses wearable sensors to measure the activities of industrial workforces, analytics to calculate the probability of injury.

Location:

Key people:

4

Funding Rounds

$11.6m

Money raised

Giraffe360 is a London-based real estate company.

1

Funding Rounds

$600.0m

Money raised

Quantinuum is a developer of the world's highest-performing quantum computer founded in 2021 by Ilyas Khan.

Location:

Key people:

1

Funding Rounds

$2.3m

Money raised

Callaly is a company that manufacutres an develops personal care products for women.

3

Funding Rounds

$14.0m

Money raised

brytlyt is a transformational Serverless Acceleration for Analytics founded in 2013 by Richard Heyns.

Location:

Key people:

2

Funding Rounds

$10.0m

Money raised

Emotech is an AI Startup company.

3

Funding Rounds

$19.9m

Money raised

Ceryx Medical is a developer of bioelectronic therapies for heart failure founded in 2016 by Julian Paton.

1

Funding Rounds

$30.0m

Money raised

Celoxica provides ultra-low latency market data access and order execution solutions for the advanced trading community.

2

Funding Rounds

$2.6m

Money raised

Sex therapy app company based in Rickmansworth, England.

2

Funding Rounds

$58.7k

Money raised

DESOLENATOR is a London-based solar-powered desalination and water purification technology developer.

Location:

Key people:

4

Funding Rounds

$69.0m

Money raised

Platform offering augmented reality solutions to significantly reduce construction project costs.

Location:

Key people:

2

Funding Rounds

$1.1m

Money raised

Digitstain is a London-based medical device company developing a digital solution for cancer grading and prognosis, capable of being integrated in existing clinical processes.

Location:

Key people:

5

Funding Rounds

$3.4m

Money raised

Developer of e-bikes. The company develops folding, chainless, electric bicycle compatible with smartphones.

Location:

Key people:

1

Funding Rounds

$6.0m

Money raised

Flow is GitHub for hardware. Our mission is to trigger the next industrial revolution by rapidly accelerating engineering iteration.

Location:

Key people:

3

Funding Rounds

$21.1m

Money raised

Provider of hardware and software solutions for smart electricity grids.

Location:

Key people:

2

Funding Rounds

$2.7m

Money raised

Recommerce platform - E-commerce, SaaS and on-demand buyback of consumer electronics

1

Funding Rounds

$1.2m

Money raised

Tabletop machines that streamline the product development cycle.

Location:

Key people:

1

Funding Rounds

$3.2m

Money raised

Sensible Object was a London-based augmented reality video game developer.

Location:

Key people:

2

Funding Rounds

$1.0m

Money raised

Pushme is a London-based company founded in 2016 that produces shareable batteries for bicycles.

2

Funding Rounds

$14.0m

Money raised

Healthtech and electrical distribution company specializing in advanced air purification solutions.

1

Funding Rounds

$9.5m

Money raised

Online marketplace where users sell unwanted vouchers for cash and buy discounted gift cards.

Location:

Key people:

1

Funding Rounds

$10.0m

Money raised

Jinn is a company founded in 2016 by Arjun Bhatnagar, Arpit Bansal, Ibby Syed and Gabe Ficht.

1

Funding Rounds

$13.3m

Money raised

Technology company and truck manufacturer focusing on zero-emission Battery Electric and H2FC range-extended vehicles.

2

Funding Rounds

$13.6m

Money raised

Acurable is a wearable medical devices developer founded in 2016 by Emilio Sanz Pereiras.

Location:

Key people:

1

Funding Rounds

CensorNet's award-winning cloud-based security software delivers enterprise-class security and flexibility to over 4,000 customers around the world.

1

Funding Rounds

$2.2m

Money raised

Poplar Studio is a London-based company offering 3D and AR previews of products for e-commerce websites, social commerce, and the metaverse.

Location:

Key people:

1

Funding Rounds

$7.3m

Money raised

Spaceflux is an AI-powered space situational awareness solutions provider founded in 2022 by Marcel Debczynski , Marco Rocchetto and Ingo Waldmann.

Location:

Key people:

1

Funding Rounds

$3.0m

Money raised

Duel is a London-based company founded in 2015 by Paul Archer.

2

Funding Rounds

$17.0m

Money raised

Platform providing custom development services, prioritized roadmaps, support contracts, and commercial products.

3

Funding Rounds

$1.4m

Money raised

Swytch Technology is a London-based company founded in 2017.

1

Funding Rounds

$1.3m

Money raised

LGN Innovations is a company developing Edge AI for autonomous cars founded in 2019.

1

Funding Rounds

$640.0k

Money raised

Airex is a smart ventilation control that builds intelligent air ventilation units using atmospheric sensors and cloud algorithms.

1

Funding Rounds

$1.9m

Money raised

SERG was founded to make the gesture control of technology accessible for everyone and easier to use than ever before.

1

Funding Rounds

ROLI is a London-based company founded in 2009.

Industries:

Location:

1

Funding Rounds

$1.8m

Money raised

Cargo Systems Inc. is a company founded in 1980.

1

Funding Rounds

$130.0k

Money raised

On a mission to power the pharmacy of the future, giving people the confidence to make the most of their medicines.

1

Funding Rounds

$4.0m

Money raised

We provide robotic developers with enterprise grade ROS development & run time environment (Robotics engine platform).

Location:

Key people:

1

Funding Rounds

$8.0m

Money raised

Team of doctors and technology experts united to help the world hear better.

1

Funding Rounds

$14.0m

Money raised

Provider of autonomous weapon systems for defense sector.

1

Funding Rounds

$1.2m

Money raised

ZELP (Zero Emissions Livestock Project) is a London-based consulting firm working to increase sustainability and animal welfare in the beef and dairy industry.

1

Funding Rounds

$3.6m

Money raised

Advance hydrogen and direct air capture hardware platform.

Location:

1

Funding Rounds

$5.0m

Money raised

Samphire Neuroscience is a wearable device developer to tackle period pain founded in 2021 by Alex Cook.

Location:

Key people:

2

Funding Rounds

$4.8m

Money raised

App and debit card ecosystem that makes it easy to fight climate change.

3

Funding Rounds

$11.5m

Money raised

Audoo is a platform ensuring accurate royalty payments for artists founded in 2018.

8

Funding Rounds

$6.6m

Money raised

Goldilock is a Non-IP-controlled cybersecurity solution founded in 2020.

Industries:

Location:

3

Funding Rounds

$35.5m

Money raised

Technology company focused on creating sustainable urban food production and supply systems.

$3.8m

Money raised

Platform providing accessible, affordable, and clinically-validated brain health solutions.

2

Funding Rounds

$16.0m

Money raised

Technology that turns any smartphone or tablet into a tool for measuring blood pressure, pulse, and breathing rate.

$8.7m

Money raised

Platform bringing together top urban food technologies to counter the upcoming global food crisis.

1

Funding Rounds

$1.8m

Money raised

Platform offering complete home protection against digital threats.

1

Funding Rounds

$5.4m

Money raised

Platform that digitally connects staff to enhance their success and safety at work.

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