IonQ, Inc., founded in 2015 by Dr. Chris Monroe and Dr. Jungsang Kim, is an American quantum computing company that develops general-purpose trapped ion quantum computers and accompanying software. Headquartered in College Park, Maryland, IonQ specializes in quantum computing and information processing, with a mission to solve complex problems beyond the reach of classical systems. IonQ makes its quantum computers accessible through cloud platforms like Amazon Web Services, Microsoft Azure, and Google Cloud, in addition to its own cloud service. The company's hardware is based on trapped ion architecture. IonQ's qubits are ionized ytterbium atoms.
Niccolo de Masi is the Chairman & CEO of IonQ. Key members of the leadership team include Inder M. Singh (Chief Operating Officer & Chief Financial Officer) and Scott Millard (Chief Business Officer). Recent news includes IonQ's selection to support the Missile Defense Agency SHIELD IDIQ contract and the completion of the acquisition of Skyloom. On January 26, 2026, IonQ agreed to acquire SkyWater Technology for $1.8 billion. As of February 20, 2026, IonQ's stock price was $31.90, with a market cap of $11.5 billion. IonQ is traded on the NYSE under the ticker symbol IONQ.