Rigetti Computing is a leader in the race for "quantum advantage," standing out as one of the few truly "full-stack" companies in the industry. Based in Berkeley, California, they don’t just design software; they build the entire ecosystem from the ground up. This includes designing and manufacturing quantum chips, building the hardware cabinets, and developing the cloud-based software that allows users to access quantum power.

The race to build the world’s first useful quantum computer is one of the most ambitious scientific endeavors of our time. At the forefront of this revolution is Google Quantum AI, a specialized division of Alphabet Inc. dedicated to moving beyond the limits of classical physics.

IBM’s quantum computing division is a global leader in the development of Superconducting Qubits, a hardware architecture that uses cryogenic electronic circuits to process information. As of mid-2026, IBM has transitioned from demonstrating "quantum utility" to enabling the first era of "quantum advantage" for real-world applications