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London's Top Deep Tech Startups

Article · Scaling Europe · 12 Aug 2026

London's Top Deep Tech Startups

London Deep Tech is the strongest it has ever been. Here are the companies to join in the space.

1. Fractile — $220M Series B (May 2026; Accel, Founders Fund, Factorial); in-memory AI inference chips for cheaper, faster inference.

2. Humanoid — $152M Series A (Jul 2026; Prime Movers Lab, Bosch, Schaeffler) at $1.35bn; industrial humanoid and wheeled robots.

3. Quantum Motion — $160M Series C (May 2026; DCVC, Kembara); silicon-CMOS spin-qubit quantum computers on standard chip fabrication.

4. Isomorphic Labs — $2.1bn Series B (2026, led by Thrive) after $600M (Mar 2025); AI drug-design engine

5. PhysicsX — $300m Series C for its AI-native engineering simulation.

6. Orbital Materials — $50M Series B (May 2026); AI-driven discovery of new materials for datacentres and carbon capture.

7. Dexory — $80M Series B (2025, led by DTCP); autonomous warehouse robots plus an AI inventory "digital twin".

8. Gaussion — €24.5M (~$28M) (Jun 2026; AlbionVC, UCL Technology Fund) after a $12M Series A; magnetics that speed up battery charging.

9. Salience Labs — $30M Series A (2025); photonic switches for all-optical AI-datacentre networking.

10. Phasecraft — $34M Series B (Sep 2025; Plural, Playground Global, Novo Holdings); quantum algorithms for near-term hardware.

11. Solena Materials — $6.7M seed (May 2025; Sir David Harding, Insempra); AI-designed proteinbased high-performance fibres. 12. Wave Photonics — pre-Series A (Jul 2025; Foresight, Parkwalk); design tools/components for integrated photonics.

13. Oriole Networks — $22M Series A (Jan 2025); UCL spin-out building all-optical networking for AI datacentres.

14. DEScycle — €12.2M Series A (Nov 2024; BGF, Vorwerk); deep-eutectic-solvent chemistry for ewaste metal recycling.

15. Vaire Computing — $4M seed (2024); reversible, near-zero-energy computing chips for postMoore efficiency.

Originally published on Substack.