A fresh wave of quantum‑computing firms is heading for public markets, and capital is spilling into a broader set of technologies than investors expected. The upcoming listings aim to raise $1.5 bn collectively, dwarfing the modest sums typical for the sector but still tiny compared with AI fundraising. Companies such as Infleqtion (US), Canada’s Xanadu, France’s Pasqal and Finland’s IQM illustrate an international, multi‑technology push.

Earlier IPOs – IonQ, Rigetti and D‑Wave – showcased superconducting or ion‑trap qubits, technologies that have dominated headlines and attracted big‑tech backing from Google and IBM. Yet DARPA’s three‑year hunt for a “utility‑scale” computer by 2033 now tracks fourteen contenders spanning superconductors, neutral atoms, photons and emerging silicon‑spin approaches, confirming that no single architecture has yet secured dominance.

Even incumbents are hedging: Google, long‑focused on superconductors, launched a neutral‑atom programme, while Microsoft partnered with Atom Computing after years chasing Majorana fermions. Start‑ups further down the pipeline – Quantum Motion in the UK and Australia’s Silicon Quantum Computing – tout CMOS‑compatible spin qubits that could shave billions off the roughly $1 bn cost forecast for a full‑scale machine. Investor appetite suggests the quantum race remains wide open.