Photonic closes $200M round at $2B valuation as Canada bets big on quantum computing
What's the deal? Photonic Inc., a Vancouver-based quantum computing company, has closed a funding round at more than $200M, valuing it at $2B including the capital raised.
The round was led by Planet First PartnersDealroom has a profile for this one. Try Dealroom →, a British climate technology investor, and drew backing from Abu Dhabi sovereign wealth fund Mubadala Capital, alongside existing investors Microsoft, Royal Bank of CanadaDealroom has a profile for this one. Try Dealroom →, and TelusDealroom has a profile for this one. Try Dealroom →. Canadian investors accounted for more than half the round.
Photonic was founded by Stephanie SimmonsDealroom has a profile for this one. Try Dealroom →, who serves as chief quantum officer and is one of the world's leading researchers in silicon spin qubit technology. The company is building quantum computers using silicon — the same material used in conventional computer chips — which it argues will enable manufacturing at scale using existing semiconductor infrastructure.
It is one of three Canadian quantum companies that have advanced to the second stage of DARPADealroom has a profile for this one. Try Dealroom →'s programme challenging developers to demonstrate a commercial-grade quantum computer by 2033.
Why now? Canada has become an unexpected hub for quantum computing, producing three companies now valued at billions of dollars — Photonic, Xanadu, and D-Wave. Simmons is explicit about the lesson she is drawing from AI: Canada trained many of the world's leading AI researchers but captured almost none of the commercial value. She is determined not to repeat that outcome in quantum.
Canadian institutional investors — banks, pension funds, Crown corporations — appear to share that conviction, backing Photonic at a scale that would have been unusual for a domestic deep tech company even five years ago.
The timing is also commercially driven. Several quantum rivals are rushing to go public — Xanadu listed in March 2026 and has seen its valuation peak above $10B, while Infleqtion and Horizon QuantumDealroom has a profile for this one. Try Dealroom → have also listed. Photonic is deliberately staying private, arguing that the market is being made now and that the right moment for a public listing has not yet arrived.
What could go wrong? Photonic, like all quantum computing companies, has not yet demonstrated a fault-tolerant quantum computer capable of solving commercially useful problems. The DARPA programme it participates in does not require that milestone until 2033 — a long runway that requires sustained investor confidence.
Silicon spin qubits, while promising, face significant engineering challenges around error rates and qubit coherence that have not yet been fully solved.
The competitive landscape is also intensifying globally, with Google, IBMDealroom has a profile for this one. Try Dealroom →, Microsoft, and a growing number of well-funded startups all pursuing different technical approaches with vastly greater resources.
The signal: Photonic's round is the clearest signal yet that Canada is treating quantum computing as a strategic national technology — not just a research curiosity.
The combination of sovereign wealth, government-backed development banks, major banks, telcos, and pension funds investing alongside international VCs represents a coordinated institutional bet of a kind that Canada has rarely assembled in deep tech.
Whether it pays off depends on whether silicon spin qubits prove to be the winning approach — and whether Simmons is right that the quantum market is being made now, not later.
Sources:
Photonic
Globe and Mail
The Quantum Insider
Quantum Computing Report
Tech Journal UK
Image credit:
Photonic
J.V.
