News

June 9, 2025

UK quantum startup Oxford Ionics acquired by IonQ in $1.1bn deal

The University of Oxford spinout’s investors include Oxford Science Enterprises, 2xN and Hermann Hauser

Tom Nugent

2 min read

UK quantum startup Oxford Ionics has been acquired by US quantum company IonQ in a deal worth $1.1bn. 

Oxford Ionics was spun out of the University of Oxford in 2019 by founders Chris Ballance and Tom Harty, and works on trapped-ion technology — which consists of “trapping” single atoms in place using an electromagnetic field. 

While developers of trapped-ion quantum computers typically rely on expensive and complex laser systems to control the trapped ions, Oxford Ionics uses electronic qubit control technology that can be integrated into a standard silicon chip. This allows the startup to manufacture its quantum processors at scale using existing manufacturing technology.

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IonQ, which is based in Maryland and also works on trapped-ion technology, said the combined company expects to build systems with 256 physical qubits at accuracies of 99.99% by 2026. It plans to grow that to more than 10k physical qubits by 2027 and 2m by 2030.

“We believe the advantages of our combined technologies will set a new standard within quantum computing and deliver superior value for our customers through market-leading enterprise applications,” said Niccolo de Masi, CEO of IonQ. 

The stock-and-cash deal, which is expected to close this year, consists of $1.065bn in IonQ common stock and around $10m in cash. 

Ballance and Harty are expected to remain with IonQ after the acquisition is completed. 

Since it was founded, Oxford Ionics has raised more than $50m from investors including Braavos, Oxford Science Enterprises, Lansdowne Partners, Prosus Ventures, 2xN and Hermann Hauser, who helped establish chip giant ARM.

Tom Nugent

Tom Nugent is Sifted’s managing editor. Follow him on X and LinkedIn