The leading italy quantum computing companies in 2026 sit inside an ecosystem built on a long tradition in optics and physics, now organised by the National Quantum Science and Technology Institute and given a national platform by the CINECA supercomputing centre in Bologna. Ten organisations define the italy quantum computing companies in this guide: Ephos (Milan, glass photonic chips), Algorithmiq (Milan, quantum chemistry software), Planckian (Pisa, superconducting hardware), QTI (Florence, quantum key distribution), ThinkQuantum (Vicenza, QKD and randomness), PhotonPath (Milan, silicon photonics), Rotonium (Friuli, room-temperature photonic computing), QSENSATO (Bari, quantum sensors), levelQuantum (Milan, quantum photonic devices), and CINECA (the Bologna quantum-HPC hub).
Why Italy is an emerging quantum contender
Italy has long been a strong physics nation, with deep research traditions in optics, photonics, and fundamental physics through institutions such as the National Research Council and the National Institute for Nuclear Physics. For years that strength produced excellent science and skilled researchers, but relatively few funded companies, and the italy quantum computing companies were slower to emerge than those in Germany, France, or the Netherlands.
That picture changed in the 2020s. The National Quantum Science and Technology Institute gave the sector a coordinating national programme, the CINECA supercomputing centre became a destination for commercial quantum hardware, and a wave of university spin-offs turned laboratory results into companies. The arrival of a well-funded software company relocating its headquarters to Milan, and the largest quantum venture round yet recorded in the country, signalled that the italy quantum computing companies had moved from research promise into a genuine commercial ecosystem.
The NQSTI institute and national funding
The backbone of Italy’s quantum effort is the National Quantum Science and Technology Institute, known as NQSTI, launched in early 2023 and funded with EUR 116M from the national recovery and resilience plan financed by the European Union. NQSTI is a consortium of around twenty institutions, including universities, public research bodies, and companies, organised into nine thematic areas that the programme calls Spokes, covering computing, communication, sensing, and the science that supports them.
NQSTI works alongside the established research bodies that already had strong quantum groups, particularly the National Research Council and the National Institute for Nuclear Physics, and a National Quantum Polo initiative announced at the end of 2025 aims to push the country further toward technological sovereignty in quantum hardware. The funding is smaller than Germany’s multi-billion-euro programme, but it is enough to coordinate the italy quantum computing companies, sustain the university spin-off pipeline, and connect Italy to the wider European quantum effort.
The top italy quantum computing companies
Ten organisations define the italy quantum computing companies covered in this guide. Two build quantum-computing hardware (Ephos on glass photonic chips, Planckian on superconducting processors), and one more builds room-temperature photonic computers (Rotonium). One is a quantum-software company (Algorithmiq), two are quantum-communication vendors (QTI and ThinkQuantum), two are photonics companies whose work supports the sector (PhotonPath and levelQuantum), one builds quantum sensors (QSENSATO), and one is the national supercomputing centre hosting commercial quantum machines (CINECA). The NQSTI institute coordinates the national programme behind the italy quantum computing companies ecosystem.
Independent directories of the italy quantum computing companies list a similar shortlist of names. The profiles below cover the leading organisations in depth.
Ephos
Glass photonic quantum chips · Milan, Italy · Founded 2022
Ephos is the Milan-based hardware vendor founded in 2022, and it designs and manufactures quantum photonic chips made from glass rather than the silicon or lithium-niobate platforms most photonic companies use. Glass waveguides can carry single photons with very low loss, which matters because every photon lost to scattering or absorption degrades a photonic quantum computation, and Ephos has built its company around manufacturing that material at chip scale. In 2025 the company secured a EUR 41.5M grant under the European Chips Act toward a glass-photonics manufacturing facility with a total cost above EUR 100M, one of the largest single commitments to any of the italy quantum computing companies. Ephos also raised earlier seed financing with backing connected to the European Innovation Council and NATO’s DIANA programme. The company is Italy’s deepest photonic-hardware bet.
ephos.io →
Algorithmiq
Quantum software for chemistry · Milan, Italy · Founded 2020
Algorithmiq is a quantum-software company founded in 2020 that moved its global headquarters to Milan in 2026, and it builds algorithms for chemistry, materials, and life-sciences problems that run on today’s noisy quantum hardware. The company focuses on the near-term question of how to extract useful chemistry results from imperfect processors, combining quantum algorithms with error-mitigation techniques, and it has run commercial collaborations with major hardware providers across the industry. In 2026 Algorithmiq raised roughly EUR 18M in a round led by United Ventures and CDP Venture Capital, described as the largest quantum venture round recorded in Italy, taking total funding to around EUR 36M. The relocation of a well-funded quantum-software company to Milan is a notable vote of confidence in the Italy quantum companies ecosystem and strengthens the country’s software layer.
algorithmiq.fi →
Planckian
Superconducting quantum processors · Pisa, Italy · Founded 2023
Planckian is the Pisa-based hardware vendor founded in 2023 as a spin-off of the University of Pisa and the Scuola Normale Superiore, and it builds superconducting quantum processors with a focus on a constant-wiring control architecture. The wiring problem is one of the central obstacles to scaling superconducting machines, because conventional designs need a growing number of control lines as qubit counts rise, and an architecture that holds the wiring roughly constant would remove a key bottleneck. Planckian launched with pre-seed financing and in 2025 announced a research partnership with the QTLab group at the University of Naples Federico II and unveiled a new superconducting chip architecture. As the main domestic superconducting-hardware effort, Planckian gives the Italy quantum companies a gate-based hardware programme to sit alongside the country’s strong photonic and communication activity.
planckian.co →
QTI (Quantum Telecommunications Italy)
Quantum key distribution · Florence, Italy · Founded 2020
QTI, Quantum Telecommunications Italy, is the Florence-based quantum-communication vendor founded in 2020 as a spin-off of the National Institute of Optics within the National Research Council. The company builds quantum-key-distribution systems, hardware that uses the laws of quantum physics to exchange encryption keys in a way that reveals any attempt at interception, and its Quell-X product line has been presented at the major optical-communications conferences. QKD is the practical front line of quantum-safe communication, because it protects data against the future threat that a large quantum computer could break today’s public-key cryptography. QTI connects the Italy quantum companies to the country’s strong tradition in optics and photonics research, and it gives Italy a domestic supplier for the secure-communication infrastructure that banks, governments, and telecom operators increasingly need.
qticompany.com →
ThinkQuantum
QKD + quantum randomness · Sarcedo, Vicenza, Italy · Founded 2021
ThinkQuantum is the quantum-communication vendor founded in 2021 as a spin-off of the University of Padua and based in Sarcedo, in the Vicenza area of north-east Italy. The company builds both quantum-key-distribution systems and quantum random number generators, covering two complementary parts of the quantum-security stack, because secure communication needs both a way to exchange keys safely and a source of genuinely unpredictable numbers to build those keys from. ThinkQuantum draws on the University of Padua’s long record in quantum optics and free-space quantum communication, a group that has run satellite and ground-based quantum-link experiments. The company is active in European quantum-communication networking efforts, and it gives the Italy quantum companies a second strong domestic vendor in the quantum-security segment alongside QTI.
thinkquantum.com →
PhotonPath
Silicon-photonics chipsets · Milan, Italy · Founded 2019
PhotonPath is the Milan-based photonics company founded in 2019 as a spin-out of the Politecnico di Milano, and it builds silicon-photonics chipsets and modules that route and control light on a chip. While PhotonPath’s business spans telecom and data-centre photonics more broadly than quantum alone, integrated photonics is an essential enabling technology for the quantum sector, because photonic quantum computing and quantum communication both depend on compact, manufacturable optical circuits. In 2025 the company raised a EUR 5.1M Series A led by Join Capital to scale its integrated-photonics platform. PhotonPath adds depth to the Milan photonics cluster that also contains Ephos and levelQuantum, and it gives the Italy quantum companies a supply-chain capability in the programmable-photonics components that future photonic quantum systems will rely on.
photonpath.com →
Rotonium
Room-temperature photonic computing · Friuli Venezia Giulia, Italy · Founded 2022
Rotonium is the hardware vendor founded in 2022 in the Friuli Venezia Giulia region and incubated in Padua, and it is developing photonic quantum computers that encode information in single-photon qudits and operate at room temperature. A qudit carries more than the two states of a standard qubit, which can pack more quantum information into each photon, and room-temperature operation removes the need for the dilution refrigerators that cryogenic modalities require. That combination is aimed squarely at deployment outside the laboratory, including space and edge environments where a large cryogenic system would be impractical. Rotonium raised a EUR 1M seed round in 2024 led by Galaxia with CDP Venture Capital, and it gives the Italy quantum companies an ambitious, deployment-focused photonic-computing approach distinct from the larger photonic programmes elsewhere in Europe.
rotonium.com →
QSENSATO
Chip-based quantum sensors · Bari, Italy · Founded 2024
QSENSATO is the Bari-based hardware vendor founded in 2024 as a spin-off of the University of Bari, and it develops chip-based atomic quantum sensors. Quantum sensing uses the extreme sensitivity of atoms to measure magnetic fields, rotation, time, and other quantities with precision far beyond conventional instruments, and building those sensors onto compact chips is what turns laboratory physics into deployable devices. QSENSATO raised a EUR 500,000 pre-seed round in 2025 with backing from the LIFTT investment group and the Quantum Italia programme. While quantum sensing is a separate field from quantum computing, it is part of the same national quantum ecosystem and often reaches commercial use sooner, and QSENSATO extends the Italy quantum companies into southern Italy, broadening an ecosystem otherwise concentrated in the north.
qsensato.com →
levelQuantum
Quantum photonic devices · Milan, Italy · Photonics company
levelQuantum is a Milan-based company developing quantum photonic devices for security, metrology, and computation, working out of the PoliHub innovation environment connected to the Politecnico di Milano. The company sits at the point where photonic engineering meets several quantum applications at once, because the same building blocks, single-photon sources, integrated waveguides, and detectors, are needed for quantum-secure communication, for precision measurement, and for photonic quantum computing. By developing devices that span those uses, levelQuantum complements the more specialised vendors in the Italian ecosystem, the QKD-focused QTI and ThinkQuantum, the chip-maker Ephos, and the photonics supplier PhotonPath. levelQuantum adds another node to the Milan photonics cluster and broadens the device-level capability of the Italy quantum companies.
levelquantum.eu →
CINECA (Bologna quantum-HPC hub)
National quantum-HPC host · Bologna, Italy · Supercomputing consortium
CINECA is Italy’s national supercomputing consortium, and its Bologna data centre has become the country’s quantum-HPC hub. The site operates LEONARDO, a EuroHPC pre-exascale supercomputer, and it is the location where Italy’s first commercial quantum computers are being installed alongside that classical machine. An IQM Radiance superconducting system with 54 qubits is being integrated at CINECA, and in early 2026 a Pasqal neutral-atom quantum processor of roughly 140 qubits was delivered there, giving Italy two different quantum modalities co-located with one of Europe’s most powerful supercomputers. That arrangement is what near-term quantum algorithms need, because they run as a tight loop between quantum execution and classical post-processing. CINECA gives the Italy quantum companies and the country’s researchers a shared national platform for hybrid quantum-classical work.
cineca.it →
Active Technologies S.r.l.
Quantum control · Treviso, Italy · Founded 2004
Active Technologies is an Italian company manufacturing high-performance arbitrary waveform generators for quantum computing applications, including partnerships with Berkeley Nucleonics for North American distribution. The company designs and produces AWG systems used for quantum processor control, delivering the signal fidelity and timing precision required for quantum gate operations. Active Technologies brings European manufacturing expertise to the quantum control electronics supply chain, supporting the growing demand for quantum instrumentation.
www.activetechnologies.it →
QFab
Photonic · Milan, Italy · Founded 2022
QFab develops quantum fabrication and materials simulation software for the semiconductor and materials industries. Its tools predict material properties, optimize fabrication processes, and support the design of new materials, combining quantum chemistry calculations with machine learning to speed up materials discovery and process optimization.
The company’s target industries include semiconductors, photonics, and advanced materials manufacturing. Based in Italy, QFab works with European semiconductor manufacturers and materials research institutions. Its platform tackles computational problems in materials science that are difficult for classical computers, with a focus on delivering practical value to materials scientists and process engineers.
www.qfab.it →
Telsy
Post-quantum · Rome, Italy · Founded 1980
Telsy is an Italian cybersecurity company that expanded into quantum key distribution and quantum-safe security solutions for government and defense applications. With decades of experience in cryptography and secure communications, Telsy provides QKD systems and post-quantum cryptography solutions to protect critical national security communications. The company serves Italian government, defense, and critical infrastructure sectors with quantum-enhanced security technologies integrated into national secure communications networks.
www.telsy.it →
SAES Rial Vacuum
Cryogenics · Parma, Italy · Founded 2015
SAES Rial Vacuum designs, models, manufactures, and tests advanced integrated vacuum systems for accelerators, quantum computing, and industrial applications. Originally founded as RIAL VACUUM RESEARCH in Parma in 1973, it was reconstituted as SAES Rial Vacuum in 2015, acquired by SAES Getters in October 2021, and fully integrated into the SAES Group in 2022.
The company produces custom ultra-high vacuum chambers and components for quantum computing, drawing on decades of expertise in ultra-high vacuum and cryogenics. It operates a 1200 m2 facility in Parma that produces quantum chambers and UHV systems for leading scientific institutions.
saesrial.com →
What the lineup reveals
The first pattern is a strong tilt toward photonics. Ephos builds glass photonic chips, Rotonium builds photonic computers, PhotonPath and levelQuantum work on photonic devices, and QTI and ThinkQuantum build photonics-based quantum communication. This concentration follows directly from Italy’s research history, because the country has world-class optics groups, and the Italy quantum companies have turned that strength into a photonics-heavy commercial portfolio rather than chasing every qubit modality.
Quantum security is a real sector
The second pattern is the depth of quantum-secure communication. QTI in Florence and ThinkQuantum in the Vicenza area both build quantum-key-distribution hardware, and ThinkQuantum also builds quantum random number generators. Two independent domestic QKD vendors give Italy a genuine quantum-security industry, supported by the University of Padua’s long record in free-space and satellite quantum communication, and they put the Italy quantum companies in a strong position as European quantum-communication networks expand.
The hardware is recent but real
The third pattern is that domestic quantum-computing hardware is young but present. Ephos and Planckian are both recent spin-offs, founded in 2022 and 2023, and Rotonium is similarly new, so Italy’s hardware story is at an earlier stage than its photonics and communication activity. The EUR 41.5M Chips Act grant to Ephos shows real ambition, though, and combined with the commercial machines arriving at CINECA, the Italy quantum companies now have a credible hardware trajectory rather than only a research one.
The Milan, Padua, Pisa, and Bologna map
The Italy quantum companies are spread across several northern cities, each tied to a strong university. Milan is the largest centre, home to Ephos, PhotonPath, and levelQuantum, the new Italian headquarters of Algorithmiq, and the Politecnico di Milano that produced several of these companies. The combination of a leading technical university and a deep investor base makes Milan the commercial heart of Italian quantum technology.
The other centres are more specialised. The Padua and Vicenza area in the north-east, anchored by the University of Padua and its quantum-optics tradition, produced ThinkQuantum and incubated Rotonium. Pisa, home to the University of Pisa and the Scuola Normale Superiore, produced the superconducting-hardware company Planckian. Florence anchors QTI through the National Institute of Optics, Bari in the south hosts QSENSATO, and Bologna hosts the CINECA supercomputing centre. The NQSTI institute connects these dispersed centres, knitting the Italy quantum companies into a single national programme.
CINECA, LEONARDO, and the quantum-HPC story
CINECA, Italy’s national supercomputing consortium, gives the country a concrete quantum-HPC capability. Its Bologna data centre operates LEONARDO, a EuroHPC pre-exascale supercomputer that is among the most powerful in the world, and the same site is now the destination for Italy’s first commercial quantum computers. The plan co-locates quantum processors with the classical supercomputer rather than treating them as separate facilities.
Two different quantum modalities are arriving at CINECA. An IQM Radiance superconducting system with 54 qubits, supplied by the Finnish vendor IQM, is being integrated at the Bologna site, and in early 2026 a Pasqal neutral-atom quantum processor of roughly 140 qubits, supplied by the French vendor Pasqal, was delivered there as Italy’s first neutral-atom machine. Having both superconducting and neutral-atom hardware next to LEONARDO matters because near-term quantum algorithms run as a tight loop between quantum execution and classical post-processing. CINECA gives the Italy quantum companies and Italian researchers a shared national platform and links the country into the EuroHPC quantum network.
When Italy matters for your quantum strategy
Photonic hardware and components
If your quantum strategy involves photonic hardware, Italy is increasingly relevant. Ephos builds glass photonic chips with a major European Chips Act commitment behind a manufacturing facility, Rotonium builds room-temperature photonic computers, and PhotonPath and levelQuantum supply photonic devices and chipsets. Organisations building photonic quantum systems, or sourcing the optical components those systems need, should track the Italy quantum companies working in the Milan and Padua photonics clusters.
Quantum-secure communication
For quantum-safe communication, Italy has two independent domestic vendors. QTI in Florence and ThinkQuantum near Vicenza both build quantum-key-distribution hardware, and ThinkQuantum also builds quantum random number generators. Enterprises in finance, government, and telecom that need to plan for the future threat of quantum-enabled decryption will find deployable QKD products and a strong supporting research base among the Italy quantum companies.
Research access and quantum-HPC
For research and development, the CINECA centre in Bologna offers a national quantum-HPC platform with both superconducting and neutral-atom quantum computers being integrated alongside the LEONARDO supercomputer. Combined with the NQSTI institute and its network of around twenty institutions, this gives partners a route into hybrid quantum-classical research. A quantum strategy that involves European research collaboration should account for the Italy quantum companies and the shared infrastructure at CINECA.
Read next
Germany quantum companies
Spain quantum companies
Netherlands quantum companies
Top quantum hardware companies
Top photonic companies
Frequently asked questions
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