Quantum Circuits

Quantum Circuits

Develops gate-model superconducting quantum computers

Overview

Quantum Circuits, Inc. develops gate-model superconducting quantum computers that use dual-rail cavity qubits with built-in erasure-edge detection to enable hardware-aware error correction. Its systems are delivered via cloud platforms like Aqumen Seeker, allowing researchers to run experiments and explore error-correction strategies (for example in collaboration with NVIDIA on Grace Hopper Superchips). The company differentiates itself by the dual-rail cavity qubit design and intrinsic erasure-detection, which target scalable, hardware-efficient error correction. Its goal is to enable practical, scalable quantum computing with more reliable operations through integrated error detection and accessible cloud-based testing.

About Quantum Circuits

Simplify's Rating
Why Quantum Circuits is rated
C
Rated B on Competitive Edge
Rated C on Growth Potential
Rated D+ on Differentiation

Industries

Hardware

Enterprise Software

Company Size

11-50

Company Stage

Acquired

Total Funding

$104.5M

Headquarters

New Haven, Connecticut

Founded

2015

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Simplify's Take

What believers are saying

  • D-Wave’s June 1, 2026 roadmap targets 17 qubits in 2026 and 100 logical by 2032.
  • Leap cloud integration extends QCI hardware to more customers than its standalone Seeker system.
  • NVIDIA CUDA-Q collaboration lowers software friction for researchers building circuits on Aqumen.

What critics are saying

  • Commercial proof remains tiny: August 2026 results use two qubits, not a scaled processor.
  • D-Wave must hit 2026, 2027, and 2028 milestones or QCI’s roadmap credibility collapses.
  • IBM, Quantinuum, and Google keep pressuring superconducting error-correction; a scale miss kills QCI.

What makes Quantum Circuits unique

  • Yale’s dual-rail cavity qubits convert photon loss into detectable erasures, slashing correction overhead.
  • D-Wave’s January 20, 2026 acquisition gives QCI annealing, control, and cloud distribution.
  • Nature’s August 5, 2026 gate result validates entanglement without destroying erasure-detection advantages.

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Funding

Total Funding

$104.5M

Above

Industry Average

Funded Over

4 Rounds

Acquisition funding comparison data is currently unavailable. We're working to provide this information soon!
Acquisition Funding Comparison
Coming Soon

Benefits

Remote Work Options

Hybrid Work Options

Growth & Insights and Company News

Headcount

6 month growth

-29%

1 year growth

0%

2 year growth

0%
Ali Rostami
Aug 5th, 2026
Home / Science / D-Wave shows off its new entry in quantum computing race.

Home / Science / D-Wave shows off its new entry in quantum computing race. Company noted for building quantum annealers now also making gate-based hardware. D-Wave is a bit of an oddity in the quantum computing space, having been founded back in the last century. And its initial offering wasn't a quantum computer like those being developed by IBM or Google. Instead, the company built what's now called a quantum annealer, a machine that isn't general-purpose but can solve a large class of optimization problems. While the hardware shares some similarities with the qubits used in gate-based quantum computers, it operates in a fundamentally different way. But a few years back, D-Wave started working on gate-based hardware, apparently choosing a somewhat unusual qubit technology called fluxonium. And this year, the company acquired a startup called Quantum Circuits that spun out of Yale University and has been developing what's called a dual-rail qubit (the same technology used by Amazon), which promises to make most errors very easy to detect, simplifying error correction. On Wednesday, the company is publishing a paper in Nature that describes a key step in validating this dual-rail technology, showing that two of the qubits can be entangled without altering their best feature: Most are a single type that is easy to detect.

The London Tribune
Jul 29th, 2026
Stellora.AI launches AI.ForHumanity.Global, a new consortium uniting innovators behind a "Humanity First" Vision for artificial intelligence.

Stellora.AI launches AI.ForHumanity.Global, a new consortium uniting innovators behind a "Humanity First" Vision for artificial intelligence. The founding member brings Quantum Flow, a multilayer-RAG system that turns quantum research papers into working quantum circuits, to a global movement now inviting new members to join. PRAGUE, Czech Republic, 29th July 2026, ZEX PR WIRE, Stellora.AI announced the launch of AI.ForHumanity.Global, a global consortium founded to ensure that the next generation of artificial intelligence is built, from the ground up, to serve people rather than replace them. The movement unites researchers, companies, and institutions who share a single conviction: that the most powerful technologies of its time should be directed first and foremost toward the advancement of humanity, in healthcare, in science, in the responsible stewardship of intelligence itself, and in the safe use of intelligence. At the heart of the consortium is a shared charter, the AI.ForHumanity.Global Principles and Commitments, which every member is expected to uphold. These Principles and Commitments are anchored by a "Humanity First" ethos, the belief that AI systems must be measured by the good they do for real people, and a "Sovereignty First" architecture that keeps organizations in control of their own data, models, and outcomes. Members commit to rigor and accuracy over hype, to transparency in how their systems reach conclusions, and to widening access so that breakthrough tools reach the nonprofit research institutions and hospitals that need them most. "Stellora.AI was never built just for technology; it was built for humanity," said Michal Charvát, Founder of Stellora.AI. "AI.ForHumanity.Global is where that belief becomes a movement. We are inviting everyone who shares this vision, and who wants to help build a future where advanced AI genuinely serves people, to stand with us." A consortium open to new members AI.ForHumanity.Global is actively seeking new members: organizations and individuals who share its vision and want to support the movement. Members join a growing network committed to the Principles and Commitments and to putting powerful AI to work on humanity's hardest problems. Prospective members can learn more and express interest through the consortium's website. Stellora.AI and Quantum Flow: the founding standard Stellora.AI, the EU-based deep-tech project behind the consortium, serves as a Founding Member and a living proof point for the movement's principles. Its flagship product, Quantum Flow, already operates by the standard the Principles and Commitments describe. Quantum Flow is built on Stellora.AI's state-of-the-art multilayer RAG (retrieval-augmented generation) technology, in which specialized networks of AI agents iteratively validate one another's work to deliver dependable, accuracy-first results for high-stakes fields such as medical research. Uniquely, Quantum Flow can produce functional quantum circuits for real quantum machines or simulators based solely on PDF quantum studies and quantum Intellectual Property documents. In practice, it converts dense research papers and prior intellectual property into working, functional Intellectual Property: quantum circuits that run on live platforms. Turning static knowledge into tools that can advance healthcare, accelerate drug discovery, and contribute to the broader progress of humanity. By closing the gap between quantum research on paper and quantum computation in practice, Quantum Flow gives scientists a way to move faster on molecular simulation, precision medicine, and other domains where classical computers reach their limits. Live demonstrations this autumn: Berlin and Lisbon Stellora.AI will bring Quantum Flow to two of the year's most closely watched technology stages. This October in Berlin, Stellora.AI will present Quantum Flow at the Quantum Computing & Quantum Technology Conference, organized by Innovatex Conferences (October 12-14, 2026), and in November at Web Summit in Lisbon (November 9-12, 2026), the company will exhibit to one of the world's largest technology audiences. At both events, Stellora.AI will run a live demonstration of Quantum Flow, and the product's author, Michal Charvát, will be present in person to meet with attendees, partners, and prospective consortium members. October 12-14, 2026 · Berlin Quantum Computing & Quantum Technology Conference, organized by Innovatex Conferences. Live demonstration of Quantum Flow, presented in person by Michal Charvát. November 9-12, 2026 · Lisbon Web Summit. Stellora.AI exhibiting, with a live demonstration of Quantum Flow and Michal Charvát on site. About Stellora.AI Stellora.AI is an EU-based deep-tech project building agentic, intelligent infrastructure for high-stakes industries including healthcare, deep-tech, and space exploration. Through its multilayer RAG engine and its Quantum Flow framework, Stellora.AI delivers accuracy-first AI systems that generate and validate quantum code on real hardware and simulators, helping bridge the gap between advanced research and real-world scientific impact. Stellora.AI is a Founding Member of AI.ForHumanity.Global. About AI.ForHumanity.Global AI.ForHumanity.Global is a global consortium founded by Stellora.AI to unite organizations and individuals committed to ensuring that artificial intelligence serves humanity first. Guided by its Principles and Commitments, the consortium advances a "Humanity First" and "Sovereignty First" approach to building and deploying AI, with a focus on healthcare, scientific discovery, and the responsible advancement of intelligence. The consortium is currently welcoming new members who share its vision.

Business Wire
Jan 8th, 2026
D-Wave Announces Agreement to Acquire Quantum Circuits Inc., Establishing World’s Leading Quantum Computing Company

D-Wave Quantum Inc. (NYSE: QBTS) (“D-Wave” or the “Company”), a leader in quantum computing systems, software, and services, and the world’s first commercial...

AskTraders
Jan 7th, 2026
D-Wave Quantum (QBTS) Stock Holding Steady on $550 Million Quantum Circuits Acquisition

D-Wave Quantum (QBTS) stock holding steady on $550 million Quantum Circuits acquisition. D-Wave Quantum Inc. (QBTS) is making waves in the quantum computing sector, with its stock price holding fairly steady following the announcement of a definitive agreement to acquire Quantum Circuits Inc. for $550 million. The deal, coupled with a recent breakthrough in gate-model quantum computing, has positioned D-Wave as a key player in the burgeoning quantum technology landscape.

Quantum Computing Report
Sep 2nd, 2025
Quantum Circuits Integrates with NVIDIA CUDA-Q to Advance Dual-Rail Qubit Applications

Quantum Circuits, Inc. (QCI) has announced a collaboration with NVIDIA to integrate NVIDIA CUDA-Q programming capabilities into its Aqumen software suite.

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