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Publicly traded trapped-ion quantum computing company (NYSE) providing cloud-accessible quantum systems via AWS, Azure, and Google Cloud; College Park MD; first pure-play quantum company to go public; serves pharma, finance, and logistics with quantum algorithm advantage.
IonQ is a College Park, Maryland-based quantum computing company that develops and operates trapped-ion quantum computers accessible via cloud API through Amazon Web Services, Microsoft Azure, and Google Cloud. IonQ's trapped-ion approach uses individual ytterbium atoms as qubits, cooled and suspended by electromagnetic fields, enabling higher qubit fidelity and longer coherence times than superconducting competitors. The company went public via SPAC merger in 2021 and trades on the NYSE, making it the first pure-play quantum computing company to go public. IonQ serves enterprise customers in pharmaceutical drug discovery, financial portfolio optimization, machine learning acceleration, and logistics using quantum algorithms that provide early advantage on specific problem classes. The company's Aria and Forte systems represent successive generations of increasing qubit count and error rates. IonQ competes with IBM Quantum, Google Quantum AI, and Quantinuum in the cloud-accessible quantum computing market and has built enterprise partnerships with Hyundai, GE Research, and Goldman Sachs.
Raised $131M (Jan 2026) led by Planet First Partners. Microsoft co-investor and technology integration partner. DARPA Quantum Benchmarking Initiative Stage 2.
Photonic Inc. is a quantum computing company developing silicon spin qubits with integrated silicon-photonic interconnects for quantum networking — the only quantum startup with Microsoft as both a co-investor and deep technology integration partner. The company raised $131 million in January 2026 led by Planet First Partners, with Microsoft, RBC, and TELUS participating, and advanced to Stage 2 of DARPA's Quantum Benchmarking Initiative (QBI) — a rigorous government evaluation of the most technically credible quantum approaches.
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