Xcout Intel
IonQ competitors & alternatives
The 12 closest competitors and alternatives to IonQ among quantum computing companies — ranked by similarity to what IonQ actually does, not by market-cap band.
Subscribe to see IonQ’s full profile → the full roster, investors in every round, weekly hiring history and every corporate event
About IonQ
IonQ, Inc. specializes in the creation of advanced, general-purpose quantum computing systems. The company provides customers with access to its 20-qubit quantum computers. This access is facilitated through prominent third-party cloud platforms, such as Amazon Web Services' (AWS) Amazon Braket, Microsoft's Azure Quantum, and Google's Cloud Marketplace, as well as directly via IonQ's own proprietary cloud service. Founded in 2015, IonQ, Inc. is headquartered in College Park, Maryland.
IonQ at a glance
IonQ is a quantum computing company headquartered in College Park, United States. It is publicly listed (IONQ) with a market capitalisation of $12.3B. Xcout tracks 39 named people at IonQ, including Niccolo Mcleod de Masi (President, CEO & Chairman). Xcout recorded 2 job postings from IonQ in the last 90 days.
IonQ leadership
- Niccolo Mcleod de MasiPresident, CEO & Chairman
- Marco PistoiaCEO, IonQ Italy
- Masi Niccolo deChairman & CEO
- Thomas SondermanCEO, SkyWater Technology
- Bill ScannellPresident and Chief Customer Officer, Dell
- Christopher BallancePresident, Quantum Computing
33 more named people on record for IonQ, with roles, board committees and tenure — see the full roster →
IonQ funding rounds on record
Every round on record:
| Date | Round | Amount | Investors |
|---|---|---|---|
| Series B | $20M | 2 named |
Some filings are not shown as funding rounds.
Who invested in each round, lead investors, valuations and the co-investor graph — open the full funding history →
Hiring at IonQ
Xcout recorded 2 job postings from IonQ in the last 90 days, from a hiring record Xcout has kept since June 2026.
The weekly hiring trend, the roles and locations behind it — see IonQ's hiring signals →
Recent IonQ news
- PartnershipIonQ and SDT Announce the First Strategic Partnership to Bring ...
- ContractIonQ's Space Division Awarded NRO Radar Commercial ...
5 corporate events on record, with sources — see the full timeline →
Top 12 IonQ competitors
Ranked by semantic similarity — how close each company is to IonQ by what it does, using Xcout's live company graph. Click any company for its full profile, or its competitor set.
Quantum Technology
Oxford Ionics develops and deploys high-performance quantum computing systems designed for enterprise and research organizations. The company utilizes proprietary Electronic Qubit Control technology to build scalable, data-centre-ready quantum computers integrated with standard semiconductor manufacturing processes.
Similar quantum computing company
Oxford Quantum Circuits (OQC) is a UK-based quantum-computing company that develops superconducting quantum computers and provides access to them through cloud platforms and data-centre deployments. It serves enterprises, researchers, and other organizations exploring quantum applications.
Similar quantum computing company
Quantum Computing, Inc. (QUBT) is a Virginia-based technology firm dedicated to developing advanced software solutions for quantum computing. A cornerstone of their offerings is Qatalyst, a quantum application accelerator designed to empower developers. This platform allows users to design and execute 'quantum-ready' applications on conventional computing systems, ensuring seamless transition and compatibility with actual quantum hardware. Furthermore, QCI provides access to a variety of leading quantum processing units (QPUs), including D-Wave, Rigetti, and IonQ. The company primarily serves commercial enterprises and government organizations. Founded in 2018 and headquartered in Leesburg, Virginia, Quantum Computing, Inc. was previously known as Innovative Beverage Group Holdings, Inc.
Similar quantum computing company
Logical Qubit Technology develops superconducting quantum computing technologies, including quantum chips, quantum cloud platforms, quantum measurement and control systems, and quantum radio frequency systems. The company provides hardware and cloud services designed to support quantum circuit execution, error correction, and scalable qubit control.
Similar quantum computing company
eleQtron is a German quantum-computing company developing trapped-ion quantum processors and related control technologies. It serves research institutions and industrial organizations seeking quantum-computing hardware and applications.
Similar quantum computing company
D-Wave Systems Inc. is a leader in quantum computing systems, software, and services, with headquarters located near Vancouver, Canada.
Similar quantum computing company
Quantum Rings, Inc. is a quantum technology company founded in 2023 and headquartered in Boulder, United States. It provides a large-scale quantum simulation platform that allows users to run simulations on local hardware or access real QPUs when needed.
Similar quantum computing company
IQM Quantum Computers is a global leader in superconducting quantum computing. The company delivers on-premise quantum computers for supercomputing data centers and research labs and offers full access to its hardware.
Similar quantum computing company
Terra Quantum provides end-to-end quantum technology solutions, including quantum algorithms, hybrid quantum cloud computing, and quantum-secure communication. The company serves various industries such as energy, automotive, life sciences, and financial services by offering optimization, security, and machine learning tools.
Similar quantum computing company
Quantinuum is a global leader in quantum computing, formed by the combination of Honeywell Quantum Solutions and Cambridge Quantum, building powerful quantum hardware.
Quantum Technology
Alpine Quantum Technologies (AQT) builds and operates advanced quantum computers, providing hardware solutions for the quantum technology sector. Headquartered in Innsbruck, Austria, the company supplies quantum systems and related scientific tools.
Similar quantum computing company
Xanadu Quantum Technologies Ltd is a Canadian photonic quantum computing company based in Toronto, specializing in designing photonic devices and building quantum computers and data centers.
Analyze another company
Search any company we track to see its competitive set.
Or describe a company
Paste a short paragraph describing a company or product — we'll find the most similar companies we track, scored 1–100.
See the full profile of IonQ and its market
Funding, investors, tech stack, hiring signals, leadership and corporate events — for IonQand every competitor above — in one live dashboard.
Subscribe to Xcout Intel →