Fractile, founded in London in 2022, designs AI inference chips that place memory and compute together. It raised a $220 million Series B in May 2026, led by Accel, Factorial Funds and Founders Fund, at a reported valuation of about $1 billion.
At a glance
| Price from | Custom |
| Best for | Data centres running large AI models |
From Fractile's own website.
What stands out
- Backed by top US investors
- Targets the cost of running AI models
Worth knowing
- First chip not yet shipping
- Performance claims not yet independently tested
How it ranks
Fractile is ranked 4th of 10 in Best Deep Tech Startups in the UK (Lister Score 93.3).
#4 in Best Deep Tech Startups in the UK · Lister Score 93.3
Fractile says its in-memory architecture can run inference 25 times faster at a tenth of the cost, with its first chip planned for 2027..
| Rank | Best Deep Tech Startups in the UK | Score |
|---|---|---|
| 1 | Wayve | 97.2 |
| 2 | CuspAI | 95.9 |
| 3 | Oxford Quantum Circuits | 94.6 |
| 4 | Fractile | 93.3 |
| 5 | Quantum Motion | 92.0 |
| 6 | Nscale | 90.7 |
| 7 | Humanoid | 89.4 |
| 8 | PhysicsX | 88.1 |
| 9 | Riverlane | 86.8 |
| 10 | Phasecraft | 85.5 |
Frequently asked questions
How does Fractile rank on Lister?
Fractile is ranked 4th of 10 in Best Deep Tech Startups in the UK (Lister Score 93.3).
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