Quantum Computing Market by Company

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.
SourceWhat it measuresYearEstimate
MarketsandMarketsVendor revenue2030$20B
IDCCustomer spending2027~$8.6B
McKinseyQuantum-computing market2035$43B to $71B
McKinseyTotal quantum-tech market2035$60B to $100B
BCGVendor market2040$90B to $170B
BCGEconomic value at stake2040$450B to $850B
McKinseyEconomic value at stake2035$1.3T to $2.7T

Cash, Burn and Runway for the Pure-Plays

The financial reality behind the technology roadmaps. Most of these companies book almost no revenue, so what matters is how much cash they hold and how fast they spend it. Runway is a mechanical ratio at the current burn, not a prediction: every name here has raised before and can raise again.

IONQ

4.8y

runway

QUBT

23.5y

runway

QBTS

5.8y

runway

LAES

10.7y

runway

RGTI

5.1y

runway

ARQQ

0.7y

runway

Share Count Growth at the Pure-Plays

How that cash gets raised. Three of the four legacy pure-plays have roughly tripled their share count since 2022, so an investor who held throughout owns about a third of the business they started with. This is the cost of a long research timeline funded from the equity market.

IONQ

197.7M to 371.2M

1.9x more shares

RGTI

102.1M to 335.4M

3.3x more shares

QBTS

113.4M to 367.5M

3.2x more shares

QUBT

52M to 162.4M

3.1x more shares

Balance Sheet vs Trailing Revenue

Cash and investments as a multiple of annual revenue, on a log scale. The ratios run from roughly 10 times to 250 times, which is the plainest way to see that these are research programmes financed by investors rather than businesses funded by customers.

Cash and short-term investments as a multiple of trailing-twelve-month revenue. A log scale: each gridline is ten times the last, because the range runs from roughly 10x to 250x.

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Quantum Computing Market: Companies & Stocks (2026) | Sterling