Sweden Quantum Computing Companies 2026: Complete Vendor Guide

The leading sweden quantum computing companies in 2026 sit inside an ecosystem built around one major national programme, the Wallenberg Centre for Quantum Technology at Chalmers University in Gothenburg, which has produced both a domestic quantum computer and most of the country’s quantum spin-offs. Ten organisations define the sweden quantum computing companies in this guide: WACQT (the national programme and quantum computer), Low Noise Factory (cryogenic amplifiers), SCALINQ (processor packaging), Arkeon Technologies (superconducting yield technology), FirstQFM (quantum software), Phase Space Computing (quantum education hardware), the Quantum Sweden Innovation Platform (commercialisation), Cobolt (lasers for quantum systems), Ericsson (quantum-secure networking research), and Telia Company (quantum-safe network pilots). Why Sweden built a focused quantum ecosystem Sweden’s quantum sector is smaller than those of Germany or the Netherlands, but it is unusually focused, and that focus is a deliberate result of how the ecosystem was built. Rather than spreading effort thinly, Sweden concentrated its quantum funding into a single large national programme, the Wallenberg Centre for Quantum Technology, which gave the country a clear centre of gravity at Chalmers University in Gothenburg. The sweden quantum computing companies have grown almost entirely out of that programme. The result is an ecosystem with a distinctive shape. Sweden does not have a large number of quantum-computer companies competing across modalities, but it has built genuine strength in the hardware components and manufacturing technologies that every superconducting quantum computer needs. The sweden quantum computing companies are concentrated in the supply chain, in cryogenic amplifiers, processor packaging, and yield-improving manufacturing technology, alongside a national quantum computer and a small but growing software layer. WACQT and the Chalmers quantum computer The Wallenberg Centre for Quantum Technology is the foundation of everything else. Launched in 2018 as a twelve-year programme, and funded mainly by the Knut and Alice Wallenberg Foundation with a budget on the order of 1.4 billion Swedish kronor, WACQT set itself the concrete goal of building a Swedish superconducting quantum computer with around one hundred well-functioning qubits running a useful algorithm. That single, measurable target has given the programme unusual coherence. Progress has been steady. WACQT reached a 25-qubit superconducting processor in 2024 and opened the machine for industry algorithm testing in 2025, with further scaling planned, and Sweden is also taking part in the European LUMI-Q project that will provide shared access to a superconducting processor. The programme links Chalmers with KTH, Lund, Stockholm, and Linkoping universities and with industrial partners including Ericsson, AstraZeneca, and Volvo. WACQT is also the source of the spin-offs, SCALINQ, Arkeon Technologies, and others, that make up much of the sweden quantum computing companies. The top sweden quantum computing companies Ten organisations define the sweden quantum computing companies covered in this guide. One is the national programme and quantum computer (WACQT), and one is a commercialisation platform (the Quantum Sweden Innovation Platform). Four are hardware and supply-chain companies (Low Noise Factory on amplifiers, SCALINQ on packaging, Arkeon Technologies on manufacturing yield, Cobolt on lasers), one is a quantum-software company (FirstQFM), one builds quantum-education hardware (Phase Space Computing), and two are large telecom corporations with quantum-secure-communication programmes (Ericsson and Telia). The WACQT centre at Chalmers coordinates the national programme behind the sweden quantum computing companies ecosystem. Independent directories of the sweden quantum computing companies list a similar shortlist of names. The profiles below cover the leading organisations in depth. WACQT (Wallenberg Centre for Quantum Technology) National quantum programme · Chalmers, Gothenburg · Launched 2018 The Wallenberg Centre for Quantum Technology is Sweden’s national quantum-research programme, coordinated from Chalmers University of Technology in Gothenburg and launched in 2018 as a twelve-year initiative funded mainly by the Knut and Alice Wallenberg Foundation. With a budget on the order of 1.4 billion Swedish kronor, WACQT is the framework that links Chalmers with KTH, Lund, Stockholm, and Linkoping universities and with industrial partners such as Ericsson, AstraZeneca, and Volvo. Its central goal is to build a domestic superconducting quantum computer with around one hundred well-functioning qubits, and it reached a 25-qubit processor in 2024 and opened the machine for industry algorithm testing in 2025. WACQT is the gravitational centre of the sweden quantum computing companies, the programme from which most Swedish quantum ventures and talent have come. chalmers.se → Low Noise Factory Cryogenic microwave amplifiers · Gothenburg, Sweden · Founded 2005 Low Noise Factory is the Gothenburg-based hardware company founded in 2005, and it is one of the most quietly important suppliers in the global quantum-hardware industry. The company manufactures cryogenic low-noise microwave amplifiers, the devices that boost the extremely faint signals coming out of a superconducting or trapped-ion quantum processor without drowning them in added noise. Qubit readout depends directly on the quality of this amplification, because a noisy amplifier limits how accurately a quantum state can be measured, and Low Noise Factory amplifiers are used inside quantum systems and radio-astronomy instruments around the world. In 2025 the company extended its range with new cryogenic isolators and circulators. As a long-established, globally relied-upon component maker, Low Noise Factory anchors the supply-chain layer of the Sweden quantum companies. lownoisefactory.com → SCALINQ Quantum processor packaging · Gothenburg, Sweden · Founded 2022 SCALINQ is the Gothenburg-based hardware vendor founded in 2022 as a spin-off from Chalmers and the WACQT programme, and it solves a problem that becomes harder with every added qubit, the physical packaging of a superconducting quantum processor. A quantum chip has to be held, wired, and shielded inside a dilution refrigerator, and as qubit counts rise the number of microwave control lines that must reach the chip grows quickly. SCALINQ’s LINQER packaging product is designed to scale to hundreds of control lines, in the range of several hundred connections, which directly raises the qubit ceiling a given system can support. By turning processor packaging into a standardised product rather than a bespoke laboratory effort, SCALINQ gives the Sweden quantum companies a supply-chain capability that hardware groups internationally can buy. scalinq.com → Arkeon Technologies Superconducting yield technology · Gothenburg, Sweden · Chalmers spinout Arkeon Technologies is a Gothenburg-based hardware vendor spun out of Chalmers and the WACQT programme, and it addresses one of the most expensive problems in superconducting quantum manufacturing, the variation between qubits on a finished chip. Superconducting qubits are defined by Josephson junctions, and tiny fabrication differences leave each qubit at a slightly wrong frequency, which lowers the yield of usable processors. Arkeon has developed a patent-pending post-fabrication trimming process that adjusts junction resistances and qubit frequencies on completed chips, turning a chip that would otherwise be scrapped into a usable one. The company is backed by Chalmers Ventures and was recognised as Startup of the Year at Venture Cup Sweden in 2025. Arkeon strengthens the manufacturing layer of the Sweden quantum companies. arkeontech.com → FirstQFM Quantum software + AI models · Stockholm, Sweden · Founded 2024 FirstQFM is the Stockholm-based quantum-software company that builds machine-learning foundation models aimed at improving performance and scalability across the quantum-computing stack. The idea is to apply the same kind of large, pre-trained models that have reshaped artificial intelligence to quantum problems such as control, calibration, and circuit optimisation, where learned models can outperform hand-tuned methods. The company focuses on the near-term era of noisy quantum hardware, where squeezing more useful computation out of imperfect processors is the central challenge. FirstQFM raised a pre-seed round of roughly EUR 1.2M in 2025, led by BSV Ventures with Almi Invest and other Nordic investors participating. As a software-first venture based in the capital, FirstQFM broadens the Sweden quantum companies beyond the hardware-heavy Gothenburg cluster. firstqfm.com → Phase Space Computing Quantum education hardware · Linkoping, Sweden · Founded 2017 Phase Space Computing is the Linkoping-based company founded in 2017 as a spin-out of Linkoping University, and it occupies an unusual and useful niche, the teaching of quantum concepts with physical hardware. The company builds electronic toolboxes, circuit boards that emulate the behaviour of quantum gates and protocols using ordinary electronics, so that students can experiment with quantum key distribution, teleportation, and algorithms such as Shor’s and Deutsch-Jozsa without needing a real quantum computer. Quantum education is a genuine bottleneck for the whole industry, because the sector needs far more people who understand quantum information than the universities currently produce, and accessible teaching tools help widen that pipeline.

Phase Space Computing gives the Sweden quantum companies a distinctive position in quantum skills and outreach. phasespacecomputing.com → Quantum Sweden Innovation Platform National commercialisation platform · Sweden · Industry-research bridge The Quantum Sweden Innovation Platform is the national initiative that works to turn Swedish quantum research into commercial products and companies. It functions as a bridge between the research base, particularly the WACQT programme, and Swedish industry, helping match the country’s quantum science with the businesses and use cases that could apply it. Commercialisation platforms matter because strong research does not automatically become a strong industry, and the gap between a laboratory result and a funded company is where many national quantum efforts struggle. By coordinating industry engagement, supporting spin-offs, and raising quantum awareness among Swedish businesses, the Quantum Sweden Innovation Platform helps the Sweden quantum companies grow from the Chalmers research core into a wider national ecosystem with customers and partners across Swedish industry. qsip.se → Cobolt (HUBNER Photonics) Lasers for quantum systems · Solna, Sweden · Photonics manufacturer Cobolt, part of HUBNER Photonics, is the Stockholm-area laser manufacturer that supplies a component every atom-based quantum computer depends on, precise and stable laser light. Trapped-ion and neutral-atom quantum processors use lasers to cool atoms, to prepare and read their quantum states, and to drive the operations of a computation, and the quality of those lasers directly affects how well the qubits perform. Cobolt builds compact, stable solid-state and diode lasers used in quantum-technology laboratories and systems, alongside applications in life sciences and metrology. As a specialist photonics manufacturer based in Sweden, Cobolt connects the Sweden quantum companies to the global atom-based quantum-hardware supply chain, supplying the optical building blocks that ion-trap and neutral-atom vendors worldwide require. hubner-photonics.com → Ericsson Quantum-secure networking research · Stockholm, Sweden · Telecom group Ericsson, the Stockholm-headquartered telecommunications group, runs a quantum-research effort focused on the parts of the field most relevant to a network-equipment company, quantum-secure communication and post-quantum cryptography. As one of the world’s largest suppliers of mobile-network infrastructure, Ericsson has a direct interest in how the eventual arrival of large quantum computers will affect the security of communication networks, and its research covers both quantum key distribution and the migration of network systems to quantum-resistant cryptographic algorithms. Ericsson is also an industrial partner in the WACQT programme, connecting its research to the Swedish national quantum effort. As a major global corporation engaged in the field, Ericsson gives the Sweden quantum companies significant industrial weight and a clear route from research into network deployment. ericsson.com → Telia Company Quantum-safe network pilots · Solna, Sweden · Nordic telecom operator Telia Company is the Nordic and Baltic telecommunications operator, headquartered in the Stockholm area, and it has run quantum-key-distribution and post-quantum-cryptography pilots across regional network infrastructure. Telecom operators are important to any national quantum ecosystem because they own the fibre networks on which quantum-secure communication has to run, which makes them both a testbed and a future customer for quantum-communication technology. Telia’s pilots help demonstrate how quantum key distribution behaves on real, operational networks rather than in a laboratory, which is a necessary step before the technology can be deployed at scale. As a large carrier engaging directly with quantum-secure communication, Telia connects the Sweden quantum companies to operational telecom infrastructure across the Nordic region. telia.com → ConScience AB Superconducting · Founded 2018 ConScience AB is a Swedish superconducting qubit research hardware company developing platforms for exploring and benchmarking multi-qubit coupling architectures. In March 2025, ConScience launched QiB2, a new superconducting qubit platform designed as a research and benchmarking tool for studying qubit interactions, coupling topologies, and error correction protocols. QiB2 targets academic and commercial quantum researchers developing the next generation of superconducting quantum processors. Based in Sweden. www.conscience-ab.com → What the lineup reveals The clearest pattern is that Sweden’s commercial strength is in quantum-hardware components rather than in complete quantum computers.

Low Noise Factory builds the amplifiers, SCALINQ builds the packaging, Arkeon Technologies improves manufacturing yield, and Cobolt builds the lasers. These companies sell to quantum-hardware groups worldwide, which means the Sweden quantum companies earn revenue from the global quantum industry regardless of which qubit modality eventually wins. One programme, many spin-offs The second pattern is how much of the ecosystem traces back to a single source. WACQT at Chalmers produced the national quantum computer, and it also produced the spin-offs that became SCALINQ, Arkeon Technologies, and others. One well-funded, well-focused national programme has effectively functioned as a startup factory, and that concentration explains why the Sweden quantum companies are coherent and Gothenburg-centred rather than scattered. Telecom and software are emerging The third pattern is that the ecosystem is broadening beyond hardware. Ericsson and Telia bring large-corporate weight to quantum-secure communication, FirstQFM adds a software-first venture in Stockholm, and Phase Space Computing addresses the quantum-skills bottleneck. These are smaller in number than the hardware companies, but they show the Sweden quantum companies extending into software, security, and education rather than remaining purely a component-supply story. The Gothenburg supply-chain cluster The Sweden quantum companies are concentrated to an unusual degree in one city, Gothenburg, and specifically around Chalmers University. WACQT, the national quantum computer, SCALINQ, Arkeon Technologies, and Low Noise Factory are all in or around Gothenburg, which has created a tight cluster where a superconducting-hardware effort can find amplifiers, packaging, and yield-improvement technology from suppliers in the same city. That density is a genuine advantage, because it shortens the development loop and concentrates talent. The other Swedish quantum activity is more dispersed. Stockholm hosts FirstQFM and the headquarters of Ericsson, with Telia and Cobolt in the surrounding area, and Linkoping hosts Phase Space Computing and the National Supercomputer Centre. The university partners in WACQT, KTH, Lund, Stockholm, and Linkoping, spread the research base across the country. The Gothenburg cluster remains the heart of the Sweden quantum companies, while the national programme connects the dispersed centres into one coordinated effort. Sweden also produced Atlantic Quantum, a superconducting venture with Chalmers roots that fabricated chips at the Chalmers quantum centre before being acquired by Google in 2025. Why Sweden specialises in quantum hardware components The component focus of the Sweden quantum companies is worth understanding, because it is a strength rather than a gap. A superconducting quantum computer is a system, and the parts that connect a qubit chip to the outside world, the amplifiers that boost its signals, the packaging that wires and shields it, the lasers and the manufacturing processes behind it, are as hard to engineer as the chip itself. Sweden’s deep tradition in microwave engineering, cryogenics, and precision manufacturing made it natural for the country to build companies in exactly those layers. This is also a commercially defensible position.

Low Noise Factory amplifiers, SCALINQ packaging, and Cobolt lasers are sold to quantum-hardware groups across the world, including to companies that compete with one another, which means the Sweden quantum companies are not dependent on the success of any single quantum-computer builder. As the global quantum industry scales, demand for high-quality components will rise no matter which modality leads, and Sweden has positioned itself as a trusted supplier of that essential layer. When Sweden matters for your quantum strategy Sourcing quantum hardware components If you build or operate quantum hardware, Sweden is a primary place to source the components around the processor.

Low Noise Factory cryogenic amplifiers, SCALINQ processor packaging, and Cobolt lasers are used by quantum-hardware groups internationally, and Arkeon Technologies offers manufacturing technology that improves superconducting-chip yield. Procurement and engineering teams building superconducting or atom-based quantum systems should treat the Sweden quantum companies as a key supply-chain region. Research collaboration through WACQT For research and development, the WACQT programme at Chalmers offers a Swedish superconducting quantum computer that has been opened for industry algorithm testing, alongside a national research network spanning five universities. Organisations interested in collaborative quantum research, or in benchmarking algorithms on a European superconducting machine, will find a clear route through the Sweden quantum companies and the WACQT centre. Quantum-secure communication For quantum-safe communication, Sweden offers both large-corporate research and operational pilots. Ericsson researches quantum-secure networking and post-quantum cryptography, and Telia has run quantum-key-distribution pilots on Nordic network infrastructure. Enterprises in telecom and critical infrastructure planning for the future quantum threat will find relevant expertise among the Sweden quantum companies, tied to operators that run real regional networks. Read next Germany quantum companies Netherlands quantum companies Italy quantum companies Top superconducting companies Top quantum hardware companies Frequently asked questions Who are the leading Sweden quantum companies in 2026? The Swedish ecosystem centres on WACQT, the Wallenberg Centre for Quantum Technology at Chalmers University in Gothenburg, which runs the national quantum-research programme and a domestic superconducting quantum computer. The strongest commercial companies are in hardware components, with Low Noise Factory building cryogenic amplifiers, SCALINQ building processor packaging, Arkeon Technologies improving superconducting-chip yield, and Cobolt building lasers. FirstQFM in Stockholm builds quantum software, Phase Space Computing in Linkoping builds quantum-education hardware, and the Quantum Sweden Innovation Platform supports commercialisation. The telecom groups Ericsson and Telia run quantum-secure-communication programmes. Together these ten organisations define the Sweden quantum companies covered in this guide. What is WACQT? WACQT, the Wallenberg Centre for Quantum Technology, is Sweden’s national quantum-research programme, coordinated from Chalmers University of Technology in Gothenburg. It launched in 2018 as a twelve-year initiative funded mainly by the Knut and Alice Wallenberg Foundation, with a budget on the order of 1.4 billion Swedish kronor. WACQT links Chalmers with KTH, Lund, Stockholm, and Linkoping universities and with industrial partners including Ericsson, AstraZeneca, and Volvo. Its central goal is to build a Swedish superconducting quantum computer with around one hundred well-functioning qubits. WACQT is the foundation of the Sweden quantum companies, both as the source of the national quantum computer and as the programme that produced most Swedish quantum spin-offs. Does Sweden have its own quantum computer? Yes. Through the WACQT programme, Chalmers University in Gothenburg has built a domestic superconducting quantum computer, reaching a 25-qubit processor in 2024 and opening the machine for industry algorithm testing in 2025. The programme’s stated goal is to scale toward around one hundred well-functioning qubits running a useful algorithm. Sweden is also participating in the European LUMI-Q project, which will provide shared access to a superconducting quantum processor for the wider research community. The national quantum computer is the centrepiece of the Sweden quantum companies, and the spin-offs working on packaging, amplifiers, and manufacturing yield grew up directly around the effort to build and scale it. Why is Sweden strong in quantum hardware components? Sweden’s strength in quantum-hardware components comes from a long national tradition in microwave engineering, cryogenics, and precision manufacturing, which made it natural for the country to build companies in exactly those layers. A superconducting quantum computer is a system, and the amplifiers that boost its signals, the packaging that wires and shields the chip, the lasers, and the manufacturing processes are as hard to engineer as the qubits themselves. The Sweden quantum companies, including Low Noise Factory, SCALINQ, Arkeon Technologies, and Cobolt, occupy this layer. It is a commercially defensible position, because these components are sold to quantum-hardware groups worldwide regardless of which qubit modality eventually wins. Where are Sweden’s quantum companies located? The Sweden quantum companies are concentrated in Gothenburg, around Chalmers University. WACQT and the national quantum computer, SCALINQ, Arkeon Technologies, and Low Noise Factory are all in or near Gothenburg, which has created a tight supply-chain cluster where a superconducting-hardware effort can find amplifiers, packaging, and yield technology locally. The rest of the ecosystem is more dispersed, with FirstQFM and the Ericsson headquarters in Stockholm, Telia and Cobolt in the Stockholm area, and Phase Space Computing in Linkoping. The WACQT programme also spans KTH, Lund, Stockholm, and Linkoping universities. Gothenburg remains the clear heart of the Sweden quantum companies. What is SCALINQ and why does it matter? SCALINQ is a Gothenburg-based hardware company, founded in 2022 as a spin-off from Chalmers and the WACQT programme, that builds packaging for superconducting quantum processors. Packaging is the physical structure that holds, wires, and shields a quantum chip inside a dilution refrigerator, and it becomes harder with every added qubit because more microwave control lines must reach the chip. SCALINQ’s LINQER product is designed to scale to several hundred control lines, which directly raises the number of qubits a system can support. SCALINQ matters to the Sweden quantum companies because it turns processor packaging into a standardised product that hardware groups around the world can buy, rather than a bespoke laboratory effort. Is Sweden’s quantum sector connected to industry? Yes. The WACQT programme was designed with industrial partners from the start, including Ericsson, AstraZeneca, and Volvo, so major Swedish companies have been engaged with quantum research throughout the programme.

The Quantum Sweden Innovation Platform exists specifically to bridge the gap between research and commercial application, supporting spin-offs and helping match Swedish quantum science with industry use cases. The telecom groups Ericsson and Telia run their own quantum-secure-communication programmes. This industrial engagement means the Sweden quantum companies are not a purely academic effort, and the country opened its national quantum computer for industry algorithm testing in 2025, giving businesses direct hands-on access. How does Sweden compare with other quantum nations? Sweden runs a smaller quantum effort than Germany or the Netherlands, but it is unusually focused. Rather than spreading funding thinly, Sweden concentrated it into the single WACQT national programme, which gave the country a clear centre at Chalmers and a concrete goal of a hundred-qubit quantum computer. The Sweden quantum companies are strongest in quantum-hardware components, amplifiers, packaging, lasers, and manufacturing yield, an area where Swedish companies supply the global industry. Sweden does not try to compete on the number of quantum-computer builders, but its component companies are trusted suppliers worldwide, and its national quantum computer keeps it among the credible European quantum nations. Stay current. See today’s quantum computing news on Quantum Zeitgeist for the latest breakthroughs in qubits, hardware, algorithms, and industry deals. Tags: