There are no quantum computers in practical use at the moment. This essay^ by IBM (incredibly biased towards making quantum computing seem useful) provides many

There are no quantum computers in practical use at the moment. This essay^ by IBM (incredibly biased towards making quantum computing seem useful) provides many "visions of"'s and "potential to"'s and "may benefit"'s, but nothing in the present tense. ^https://www.ibm.com/quantum/blog/quantum-working-groups https://www.ibm.com/quantum/blog/quantum-working-groups