Phasecraft, a spinout from UCL and the University of Bristol, writes hardware-agnostic algorithms that let today's imperfect quantum computers tackle real problems. It raised a $34 million Series B in September 2025.
At a glance
| Price from | Custom |
| Best for | Companies exploring early quantum applications |
From Phasecraft's own website.
What stands out
- Founded by university quantum scientists
- Hardware agnostic
Worth knowing
- Smaller funding than hardware peers
- Commercial use cases still emerging
How it ranks
Phasecraft is ranked 10th of 10 in Best Deep Tech Startups in the UK (Lister Score 85.5).
#10 in Best Deep Tech Startups in the UK · Lister Score 85.5
Phasecraft's Series B was co-led by Plural, Playground Global and Novo Holdings' Quantum Fund..
| 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 Phasecraft rank on Lister?
Phasecraft is ranked 10th of 10 in Best Deep Tech Startups in the UK (Lister Score 85.5).
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