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IonQ

85
NYSE: IONQCommercialCollege Park, United StatesEst. 2015
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256
Physical Qubits
Logical Qubits
99.99%
2Q Fidelity
Ion-trap
Qubit Tech
2015
Founded

About

IonQ (NYSE: IONQ) is a publicly traded pure-play quantum computing company and the largest of its kind by market presence. It became the first public quantum company to exceed $100M in GAAP annual revenue, reporting $130M in 2025, a 202% gain year over year, with Q4 2025 revenue of $61.9M. It reported first-quarter 2026 revenue of $64.7M and raised full-year 2026 guidance to $260-270M, and it holds $3.3B in cash. IonQ builds trapped-ion quantum computers with 64 algorithmic qubits and 99.9% two-qubit gate fidelity, the highest published 2Q fidelity alongside Silicon Quantum Computing at 99.99%. IonQ is developing 256-qubit trapped-ion systems for delivery in 2026, with Horizon Quantum as the first customer for a 256-qubit machine. In October 2025 it demonstrated 99.99% two-qubit gate fidelity on R&D prototypes built with barium ions and Electronic Qubit Control, microchip-based precision electronics from the Oxford Ionics acquisition that replace conventional laser optics. These prototypes underpin the planned 256-qubit systems. In April 2026, IonQ demonstrated a photonic interconnect linking two commercial trapped-ion systems, which it described as the first networked commercial quantum computers. In 2025, IonQ delivered a 100-qubit system to KISTI, the Korea Institute of Science and Technology Information, via NVIDIA NVQLink. IonQ has been active in acquisitions. In September 2025 it completed the $1.075B purchase of Oxford Ionics, the largest UK quantum exit and the largest deal from a University of Oxford spinout, gaining Electronic Qubit Control technology that points toward 2 million physical qubits by 2030. In January 2026 it announced the acquisition of SkyWater Technology for $1.8B in cash and stock at $35.00 per share. SkyWater stockholders approved the merger in May 2026, with regulatory close expected in Q2-Q3 2026. SkyWater is a US semiconductor foundry with facilities in Minnesota, Florida, and Texas, and the deal targets 200,000-qubit QPUs capable o

Quantum Specifications

Qubit TechnologyIon-trap
Physical Qubits256
2Q Gate Fidelity99.99%
Error CorrectionIn-development
Quantum Focushardware
Physical Qubits256
2-Qubit Gate Fidelity99.99%

Key People

CM
Christopher Monroe
Co-founder
JK
Jungsang Kim
Co-founder
PC
Peter Chapman
CEO

Funding History

series-c$55M
Oct 2019
grant$500K
Apr 2026
Total disclosed$55.5M
grant$500K
2026-04-20
Washington's Economic Development Strategic Reserve Fund
series c$55M
2019-10-10
GV (Google Ventures)Amazon Alexa FundLockheed Martin

Backed By

Quantonation
Lakestar
Google Ventures Gv
Samsung Catalyst Fund
Airbus Ventures
New Enterprise Associates Nea
Blackrock
Prelude Ventures

Application Areas

Drug discoveryOptimizationQuantum key distribution

Research Partners

Johns Hopkins UniversityUniversity Of FloridaU Of Maryland

Frequently Asked Questions

IonQ (NYSE: IONQ) is a publicly traded pure-play quantum computing company and the largest of its kind by market presence. It became the first public quantum company to exceed $100M in GAAP annual revenue, reporting $130M in 2025, a 202% gain year over year, with Q4 2025 revenue of $61.9M. It reported first-quarter 2026 revenue of $64.7M and raised full-year 2026 guidance to $260-270M, and it holds $3.3B in cash. IonQ builds trapped-ion quantum computers with 64 algorithmic qubits and 99.9% t...
IonQ is headquartered in College Park, United States.
IonQ was founded in 2015.
IonQ works with Trapped ion quantum technology.
IonQ has 256 physical qubits.
Yes, IonQ is publicly traded under the ticker symbol IONQ on the NYSE.
IonQ operates in the following sectors: trapped ion, quantum processors, quantum hardware, quantum networking, quantum simulation.
IonQ has raised $5B+ in total disclosed funding.
IonQ reports a two-qubit gate fidelity of 99.99%, a key measure of how accurately its quantum hardware performs entangling operations.