
Quantinuum Goes Public: Honeywell-Cambridge Quantum Set for Landmark IPO
Quantinuum, the Honeywell-backed quantum computing firm formed from the Honeywell Cambridge Quantum merger, filed for a traditional U.S. IPO seeking up to $1.05B with a ~12.7B fully diluted valuation; founders Honeywell and Cambridge Quantum would hold about 82% after the offering (Honeywell about 49% voting power), while the company posted 2025 revenue of $30.9M and a net loss of $192.6M as it continues heavy R&D, planning to issue about 21M shares at $45–$50 on Nasdaq to trade under the ticker QNT to fund operations and growth.













