Quantum
Quantum computing is moving from physics experiment to a commercializing industry, with a wave of 2026 public listings and the first merchant quantum foundries. This sector tracks the public pure-plays, the diversified incumbents, and the major private players across the competing qubit modalities, the hardware supply chain, applications, and the post-quantum-cryptography threat that is forcing a mandated migration regardless of when the hardware matures.
Updated 2026-06-29
Private Investment in Quantum Startups by Year
Annual private investment into quantum-computing startups. 2025 marked a step change to $12.6B, a 6.3 times jump over the prior year, with roughly 97 percent of it private rather than government capital (McKinsey Quantum Technology Monitor).
Quantum Market Forecasts (and Why They Disagree)
The headline forecasts span orders of magnitude because they measure different things. Vendor-revenue forecasts land in the low tens of billions by 2030; economic-value-at-stake forecasts reach hundreds of billions to trillions and are far more speculative. Read each against its metric and year.
| Source | What it measures | Year | Estimate |
|---|---|---|---|
| MarketsandMarkets | Vendor revenue | 2030 | $20B |
| IDC | Customer spending | 2027 | ~$8.6B |
| McKinsey | Quantum-computing market | 2035 | $43B to $71B |
| McKinsey | Total quantum-tech market | 2035 | $60B to $100B |
| BCG | Vendor market | 2040 | $90B to $170B |
| BCG | Economic value at stake | 2040 | $450B to $850B |
| McKinsey | Economic value at stake | 2035 | $1.3T to $2.7T |