Marin IvezicSeptember 11, 2025

What 60+ Quantum Hardware Roadmaps Actually Tell Us

What do 60+ quantum hardware roadmaps tell us when you read them together instead of one at a time? This capstone article synthesizes the quantum computing company landscape into strategic insight: which modalities have the most commercial momentum, where the industry's centre of gravity sits geographically, how roadmap promises compare to demonstrated milestones, and what all of this means for the timeline to fault-tolerant and eventually cryptographically relevant quantum computing. Superconducting qubits dominate in funding but the field is diversifying fast. Roadmaps are converging on late-2020s fault-tolerance demonstrations. The gap between promise and reality is shrinking. And a structural divide is emerging between vertically integrated full-stack builders and modular component specialists — a divide that maps directly to the Quantum Open Architecture thesis. The companion database provides a searchable, filterable reference for every company, profiled with their modality, scale, roadmap, funding, and CRQC relevance. The individual company articles go deeper on each player. This article provides the cross-cutting patterns that only become visible when you look at the landscape as a whole.