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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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Quantum Computing Companies
D-Wave Systems
D-Wave Systems is a pioneer in quantum computing known for its unique focus on quantum annealing - a specialized analog approach distinct from the gate-based quantum processors pursued by most competitors. Founded in 1999, D-Wave became the first company to…
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Quantum Computing Companies
Atom Computing
Atom Computing is a fast-rising startup developing gate-based quantum computers using optically trapped neutral atoms as qubits. The company made headlines in late 2023 by announcing a 1,225-site optical atom array populated with 1,180 qubits - the first universal quantum…
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Quantum Computing Companies
Amazon AWS
Amazon has taken a dual approach to quantum computing, combining cutting-edge hardware research with commercial cloud services. On the R&D side, Amazon Web Services (AWS) established the AWS Center for Quantum Computing at Caltech in 2019, explicitly aiming to build…
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Quantum Computing Companies
Alice & Bob
Alice & Bob is a Paris-based quantum computing startup (founded in Feb 2020 by Dr. Théau Peronnin and Dr. Raphaël Lescanne) focused on building a universal, fault-tolerant quantum computer using a novel “cat qubit” architecture. The company’s approach leverages superconducting…
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Quantum Sovereignty
Quantum Human Capital Controls as Geopolitics
Quantum sovereignty is talent-constrained. In the race for quantum technology leadership, a skilled workforce has become a strategic asset - and a policy battleground. Nations are increasingly treating talent as a key lever of geopolitics, shaping immigration visas, research-security screening,…
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Quantum Computing Modalities
Quantum Computing Modalities: Superconducting Cat Qubits
Cat qubits encode quantum information in Schrödinger's cat states inside superconducting resonators. Bit-flip errors are suppressed by the physics, not by error correction. Alice & Bob and AWS are betting this approach could cut the path to fault tolerance by…
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Quantum Security & PQC
Europe’s New Cryptographic Rulebook Just Made PQC Official
30 Apr 2025 - For years, the EU's position on post-quantum cryptography could be summarized as "we're watching closely." That changed in April 2025, when the European Cybersecurity Certification Group - the body that decides which cryptographic mechanisms are acceptable…
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Post-Quantum, PQC, Quantum Security
The Enormous Energy Cost of Breaking RSA‑2048 with Quantum Computers
The energy requirements for breaking RSA-2048 with a quantum computer underscore how different the post-quantum threat is from conventional hacking. It’s not just about qubits and math; it’s about megawatts, cooling systems, and power grids. Today, that reality means only…
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Leadership
Building the Quantum Workforce: Talent Challenges and Opportunities
Amid quantum revolution, a bottleneck has emerged: a lack of skilled people. In fact, the quantum talent shortage is now seen as one of the primary hurdles to translating lab discoveries into real-world innovations. One industry expert even warned that…
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Quantum Computing
The Many Faces of Decoherence
Quantum computers hold enormous promise, but they face a stubborn adversary: decoherence. This is the process by which a qubit’s fragile quantum state (its superposition or entanglement) leaks into the environment and effectively "forgets" the information it was carrying. For…
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Quantum Computing
What Quantum Computers Can Do Better Than Classical Computers
Quantum computers already outperform classical computers on a few specialized tasks, and over the coming years that list of tasks will grow. They excel at problems where superposition and entanglement let them explore a vast landscape of possibilities in parallel…
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