The UK quantum sector has seen significant capital inflows, highlighted by Oxford Quantum Circuits securing a £260 million Series C in June 2026. Quantinuum, following a $600 million raise, debuted on the Nasdaq with a valuation of approximately $15.6 billion.
Quantum Motion raised $160 million in a Series C round in May 2025, supported by the British Business Bank and Parkwalk. The company deployed a full-stack quantum computer at the National Quantum Computing Centre, utilizing standard silicon chip architecture.
Nu Quantum secured a $60 million Series A in December 2025 to develop its Entanglement Fabric network. Meanwhile, Riverlane reached a $75 million Series C in August 2024, and Phasecraft closed a $34 million Series B in September 2025.
Hardware innovation continues with ORCA Computing deploying photonic systems at the UK National Quantum Computing Centre. Additionally, IonQ acquired Oxford Ionics in September 2025 for $1.075 billion, marking a major exit for the UK deep tech ecosystem.
Specialized firms like Quantum Dice and PQShield address specific niches. Quantum Dice develops room-temperature processors for optimization, while PQShield raised $37 million in June 2024 to advance quantum-resistant encryption standards.
