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Quantum Computing Companies
QuEra Computing
QuEra Computing is a Boston-based quantum computing company pioneering neutral-atom quantum processors. Built on research from Harvard and MIT, QuEra operates the world’s largest publicly accessible quantum computer (the 256-qubit Aquila system on Amazon Braket) and is aggressively pursuing fault-tolerant…
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Post-Quantum, PQC, Quantum Security
Quantum Readiness Assessment (QRA)
A Quantum Readiness Assessment (QRA) is an in-depth review of an organization’s preparedness for the advent of quantum computing - especially its ability to withstand or adapt to the "quantum threat" posed by quantum computers that could render current cryptography…
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Quantum Computing Companies
PsiQuantum
PsiQuantum is a Silicon Valley-based startup taking a fundamentally different approach: photonic quantum computing. Their goal from the outset has been to build a large-scale, fault-tolerant quantum computer using photons, and they famously stated they need on the order of…
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Quantum Computing Companies
Pasqal
Pasqal is a French pioneer in neutral-atom quantum computing, building large, reconfigurable arrays of laser‑trapped Rydberg atoms and delivering them as on‑prem accelerators for HPC centers and industrial labs. Unlike many peers that separate “today’s NISQ” from “tomorrow’s FTQC,” Pasqal’s…
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Quantum Computing Companies
Nord Quantique
Nord Quantique is a Canadian quantum computing startup (founded in 2020 in Sherbrooke, Quebec) focused on building fault-tolerant quantum computers through innovative hardware design. The company’s mission centers on overcoming the main bottleneck in quantum computing - quantum error correction…
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Quantum Computing Companies
Microsoft
Microsoft’s quantum program is defined by a long‑bet on topological qubits - Majorana‑based devices designed to suppress errors at the hardware level - paired with a near-term, market-facing push through Azure Quantum. Publicly, Microsoft frames its roadmap in three phases:…
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Quantum Computing Companies
IQM
IQM Quantum Computers is a Finland‑based hardware company building superconducting (transmon) quantum processors with a distinctly European strategy: deliver on‑premises systems tightly integrated with high‑performance computing (HPC) centers while co-designing architectures for error correction and, ultimately, fault tolerance. Rather than…
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Quantum Computing Companies
IonQ
IonQ is a publicly traded leader in trapped‑ion quantum computing whose strategy is to reach useful fault tolerance with fewer physical qubits by maximizing fidelity, connectivity, and modularity. Rather than racing raw qubit counts in noisy regimes, IonQ’s thesis is…
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Quantum Computing Companies
Intel
Intel’s quantum computing program has carved a distinctive path, marrying cutting-edge quantum research with the might of advanced silicon manufacturing. Over the past several years, Intel progressed from superconducting qubit test chips (17 and 49 qubits) to a focus on…
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Industry
Dutch Quantum Ecosystem Unveils “Tuna-5” Open-Architecture Quantum Computer
The Dutch quantum computing community has reached a new milestone, revealing a homegrown quantum computer named Tuna-5. Announced in mid-May 2025, the Tuna-5 system is a 5-qubit superconducting quantum computer built using a modular “open-architecture” approach, and it’s now accessible…
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Quantum Computing Companies
Infleqtion
Infleqtion (formerly known as ColdQuanta) is a leading quantum technology company focused on gate-based quantum computing built on neutral atoms. By leveraging optically trapped atomic qubits, Infleqtion aims to deliver scalable, high-fidelity quantum processors with a clear path toward fault-tolerance…
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Quantum Computing Companies
Aegiq
Aegiq is a UK-based quantum technology startup (spun out from the University of Sheffield in 2019) that focuses on building full-stack photonic quantum computing systems. The company initially gained recognition for its work in quantum networking and quantum key distribution…
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Quantum Computing Companies
IBM
IBM has laid out one of the most detailed and aggressive quantum computing roadmaps in the industry. Over the past few years, IBM Quantum has consistently hit its interim milestones, expanding both the scale of its processors and the sophistication…
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Quantum Computing Companies
Google
Google is a frontrunner in the quest to build practical quantum computers. The company made headlines in 2019 by achieving quantum supremacy – using its 53-qubit Sycamore processor to perform in about 200 seconds a task that was estimated to…
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Quantum Computing Companies
Diraq
Diraq is an Australian quantum computing startup (founded in 2022 as a spin-off from UNSW Sydney by Professor Andrew Dzurak) focused on building large-scale quantum processors based on silicon-based spin qubits. The company’s strategy is to leverage standard silicon CMOS…
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