With a wealthy historical past in coal mining, Cardiff has since developed right into a tech hub. In addition to castles and being the birthplace of Roald Dahl, the Welsh capital has a bourgeoning expertise sector in areas akin to drugs, banking and local weather options.
We’ll be introducing you to 5 of the businesses you have to be looking out for.
Antiverse
Based: 2017
Sector: Medtech
Antiverse designs antibodies by way of machine studying, together with g-protein coupled receptors and ion channels, with the power to provide an antibody inside six months. The corporate is headquartered in Cardiff and has workplaces in Boston, USA.
In its newest Sequence A funding spherical in March 2026, Antiverse raised round £7 million ($9.3 million). This makes their complete funding to this point round $20 million (round £15 million).
Burbank
Based: 2021
Sector: Banking
Burbank guarantees to allow shopper authentication anyplace by utilizing a faucet and PIN system, making authentication less complicated and extra extensively accessible. It’s the one accessible card-present on-line fee system.
In March 2025, Burbank raised £5 million by way of its first and solely seed spherical.
Bloemteknik
Based: 2023
Sector: Climatetech
Bloemteknik is a vertical farming enterprise to assist sort out the rising international meals disaster. It affords numerous vertical farming and greenhouse options for various plant rising wants.
The corporate has raised round £3.2 million in funding, together with £2.5 million from Foresight Group in January 2026. It additionally secured £700,000 in funding from Innovate UK in February 2026.
Nisien.ai
Based: 2023
Sector: Cybersecurity
The phrase ‘Nisien’ comes from Welsh folklore. Within the Mabinogion, one twin brother, Efnisien, spreads hate and battle, whereas the opposite (Nisien) spreads peace and reconciliation. That’s what they need to emulate in on-line communities, by decreasing on-line threats and inspiring respectful dialogue whereas defending freedom of expression.
Niesen has solely had one funding spherical, however has raised $1 million (round £740,000), in line with PitchBook. Different sources say that the determine is undisclosed.
EyeDP
www.eyedp.com
Based: 2025
Sector: AI
EyeDP makes use of AI to make doc verification extra environment friendly. It automates the processing, automation and validation of those paperwork in real-time. It could actually decide up fraud, errors and provide you with a abstract of what’s within the doc. On prime of that, it has recommendations on find out how to enhance it.
As a comparatively younger enterprise, there have been no funding rounds for EyeDP but, however watch this house.
Extra tech firms in UK cities
6 of probably the most thrilling tech firms in Edinburgh – This time we’re off to bonnie Scotland to find among the most fun expertise firms within the nation’s capital, Edinburgh
5 of probably the most thrilling tech firms in Birmingham – Learn on to search out out about probably the most thrilling tech firms in Birmingham and why it’s an important place to do enterprise
9 of probably the most thrilling tech firms in Belfast – Belfast is one to look at in relation to tech companies. Listed here are 9 firms primarily based within the metropolis that may pique your curiosity
Six of probably the most thrilling tech firms in Leeds – Lately, Leeds has discovered itself turning into the house of among the nation’s most fun startups and a hub for a tech business that features healthtech, information, AI and extra
12 of probably the most thrilling tech firms in Bristol – Bristol and Bathtub’s tech sector is without doubt one of the quickest rising within the UK and a hotspot for cleantechs. Listed here are among the most fun startups to regulate
