Two-thirds of all equity investments in quantum computing in the field have come since 2018. 20% of companies are expected to dedicate resources to quantum technology by 2023, up from just 1% in 2018. BCG research estimates that quantum computing will unlock new value across many industries, creating up to $850 billion in annual value by 2040. Researching and engineering the quantum bits (qubits) that power the computers is extremely difficult and expensive. IBM, Google, Honeywell and Honeywell are heavily investing beside well-funded startups such as IonQ.
Source: https://www.helpnetsecurity.com/2021/08/02/confidence-quantum-computers/