Funded Artificial Intelligence Startups in United Kingdom
The 50 most recent funding rounds for UK-based artificial intelligence companies in this set span May to November 2025, with London accounting for the larg…
The 50 most recent funding rounds for UK-based artificial intelligence companies in this set span May to November 2025, with London accounting for the large majority of companies listed. Disclosed deal sizes range from $10K (Wanderlens, Seed, June 2025) to $1.1B — Nscale closed a Series B at that figure in September 2025, the largest in this set. Synthesia followed with a $200M venture round in October 2025 and Xelix raised $160M in a Series B in July 2025, while the bulk of activity sits in early-stage rounds: Seed and Pre-Seed deals are the most numerous, many below $10M.
Beyond London, Cambridge contributes Hiverge (Seed, $5M) and Healx, Oxford-area companies include Salience Labs and Allia, Edinburgh-based Persi raised an $890K Pre-Seed in May 2025, and Liverpool's OBT Live closed a $3M Series A in June 2025. Ten rounds in this set list undisclosed amounts, making aggregate totals for the full 50 unreliable.
Most recent rounds
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Frequently asked
What are the largest disclosed rounds among these 50 UK AI companies?
Nscale closed a $1.1B Series B in September 2025, the largest disclosed amount in this set. Synthesia followed with a $200M venture round in October 2025, Xelix raised $160M in a Series B in July 2025, and Dexory secured $100M in a Series C in October 2025.
How concentrated is UK AI startup activity in London versus other cities?
London accounts for the large majority of the 50 companies listed. Cambridge contributes Hiverge and Healx, Oxford-area companies include Salience Labs and Allia, Edinburgh-based Persi raised a Pre-Seed in May 2025, and Liverpool's OBT Live closed a Series A in June 2025 — but no non-London city generates a comparable cluster.
What funding stages are most common in this dataset?
Seed is the most frequent stage, appearing roughly 15 times, followed by Pre-Seed at around 12 rounds. Series B accounts for five rounds — PhysicsX, Nscale, Mimica Automation, Omnea, and Xelix — and there is one Series C (Dexory). Series Unknown and Venture - Series Unknown make up most of the remainder.
Which companies closed the most recent rounds?
The five most recently dated rounds are PhysicsX (Series B, $20M, November 22 2025), Synthesia (Venture - Series Unknown, $200M, October 29 2025), Dexory (Series C, $100M, October 15 2025), Supermemory (Pre-Seed, $3M, October 7 2025), and Salience Labs (Venture - Series Unknown, undisclosed, October 3 2025).
How many rounds in this set have undisclosed amounts?
Ten of the 50 rounds list undisclosed amounts, including Salience Labs, Oxford Dynamics, Glassbox, Quorso, Healx, Vertassit, Aichitect, SPIN Analytics, Pangaea Data, and LynxCraft. These span Pre-Seed through Series Unknown stages, so any aggregate capital figure for the full set will be materially understated.
What does the early-stage deal size range look like for UK AI right now?
Among disclosed Pre-Seed rounds, amounts run from $340K (AVIEL Intelligence) to $8M (Palabra.ai). Disclosed Seed rounds span $10K (Wanderlens) to $13M (SpAItial), though outliers at both ends suggest high variance at early stages rather than a tight market norm.
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