QFX wins £6.8m Innovate UK contract for compact quantum timing hardware

[Layla81]

QFX, an Oxford University spinout building hardware for distributed quantum computing and networking, has won a £6.8 million Innovate UK contract. The Quantum Insider reports that it funds Phase II of the company's SrROCK programme. The aim is a compact, low power strontium optical clock for timing in data centres and, eventually, on satellites

In Phase II, QFX will engineer and integrate the clock's physics package, which is the core that holds and probes the atoms. It will demonstrate timing performance and carry out tests relevant to space. The company will work with data centre operators, spacecraft makers and mission operators to set requirements and plan a demonstration in orbit

Precise timing underpins much more than most people realise. Data centres need tight synchronisation for financial trading, distributed databases and telecoms. Satellites rely on accurate clocks for navigation. Optical clocks are far more precise than the microwave atomic clocks used today, but they have been too big and delicate for most real world uses

The programme also aims to build UK manufacturing capability, quality assurance and intellectual property for atomic and vacuum systems. QFX raised £2 million in 2025 in a round led by Y Combinator co-founder Paul Graham. Chief executive Timothy Ballance previously founded Infleqtion's UK arm, which delivered the SQALE neutral atom computer to the National Quantum Computing Centre

This award appears to be part of the latest round of Innovate UK's Quantum Missions funding. It is good to see UK money going into practical quantum technologies with clear customers. Shrinking an optical clock into something that fits in a data centre rack would be a real achievement

Where would compact optical clocks make the biggest difference? And is the UK backing the right quantum technologies?

QFX Wins £6.8 Million Innovate UK Contract for Quantum Timing Hardwarethequantuminsider.com

[Gadget49]

Strontium optical clocks are incredibly precise in the lab. Making one compact and robust enough for space is a huge challenge. Vibration, temperature swings and radiation all cause problems. If QFX manages it, they will have something very valuable. Phase II funding suggests Phase I went well

[Crossing]

Ballance delivering SQALE to the NQCC gives him real credibility. Building a working neutral atom machine is hard. He clearly knows how to ship hardware. Shipping hardware to a national lab is a tough test

[Highland Builder]

How small can an optical clock get? Lasers, vacuum chambers and atom sources all take space

A rack sized unit would be impressive. Something satellite sized would be even more so. Chip scale atomic clocks already exist for microwave transitions. Optical versions are much harder

[Alignment Hollow]

Oxford spinouts keep coming. The university's physics department has produced a remarkable number of quantum companies

That ecosystem is one of the UK's real strengths. Oxford Ionics and Oxford Quantum Circuits spring to mind too

[HeartbreakKid92]

Resilient timing matters a lot if satellite navigation is ever disrupted. Having independent clocks on the ground and in orbit is sensible planning. The UK has talked about this for years

Good to see funding behind it now. Jamming and spoofing incidents have become more common. Backup timing is no longer a nice extra