At the same time, emerging players such as Baidu, Amazon, and Rigetti Computing ( RGTI - Free Report ) are also vying for a stake in this fast-evolving market. Among IonQ's closest competitors in the trapped-ion space is Quantinuum, a Honeywell-backed joint venture, known for its high fidelity and commercial readiness. Rigetti provides a full-stack superconducting platform but is still in the early stages of commercialization with modest revenue. D-Wave Quantum ( QBTS - Free Report ) specializes in quantum annealing, focusing on optimization problems with systems boasting over 1,200 qubits. Google's Quantum AI division leads in superconducting qubit development, setting benchmarks for scalability and quantum supremacy. Together, these companies define the competitive and rapidly shifting landscape that IonQ must navigate.