European quantum supply chain in EU-funded projects

What public CORDIS data says about the quantum technology supply chain: the EU-funded quantum projects whose titles point to a supply-chain segment, such as cryogenics, photonics or control electronics, and the companies taking part in them.

Public project data only: not a census of the supply chain and not an assessment of any company. Confidential supplier information belongs to a separate restricted system that is not part of this public portal.

Technology map of European quantum projects See how projects connect building blocks, hardware platforms and pillars (the three application pillars plus enabling technologies and supply chain).

Parts and materials of quantum technologies See what each quantum technology needs, from subsystems and components down to materials, with the EU-funded projects and companies working on each part and the critical raw materials involved.

Explore every technology on the technology hub One page per pillar and technology family, with its organisations, projects and parts.

Overview

EU-funded quantum projects counted: 1,256 (published on this portal, of 1,256 in the CORDIS snapshot)
Projects in at least one segment: 607 (48%)
Organisations taking part: 1,405
Companies: 624 (44% of the organisations)
Of which SMEs: 348 (25% of the organisations)
Participations held by companies: 1,080 of 4,491 (24%)
Participations held by SMEs: 607 of 4,491 (14%)

Supply-chain segments

EU-funded quantum projects on this portal by supply-chain segment (from title keywords), and the companies taking part in them
Segment	Projects	Companies	Of which SMEs	Top countries by companies
Cryogenics and cooling	10	5	3	Germany 2, Switzerland 1, Finland 1, and 1 more country
Photonics, lasers and optics	203	117	79	Germany 25, Netherlands 19, France 18, and 18 more countries
Control electronics and cryo-CMOS	38	24	17	Spain 4, France 4, Germany 3, and 10 more countries
Materials, fabrication and foundry	68	82	49	France 21, Germany 17, Netherlands 15, and 14 more countries
Qubit hardware platforms	130	76	56	Germany 19, Netherlands 13, France 12, and 12 more countries
Quantum software and algorithms	52	72	40	Germany 16, France 12, Spain 5, and 17 more countries
Quantum communication and security systems	128	201	93	Germany 38, Spain 24, France 18, and 25 more countries
Quantum sensors and metrology devices	135	111	67	Germany 27, France 15, Italy 13, and 18 more countries
Other / not classified	649	260	148	France 44, Germany 43, Italy 22, and 30 more countries

A project whose title matches several segments counts in each, so the rows add up to more than the 1,256 projects counted. A company counts once in every segment in which it takes part in at least one project.

Ownership, research output and patents

Further public sources are read in the background for the companies counted on this page, within the rate limit of each source, so these figures fill in over several days and are refreshed monthly. A company is matched only when a record has exactly its CORDIS name (ignoring case, accents, punctuation and, for OpenAlex, the legal form) in its CORDIS country; a company that is not matched may still have a record under another name.

Of the 624 companies, 622 have been checked in the Global LEI Index so far and 163 matched to a Legal Entity Identifier (LEI). Of the 151 EU-based companies with an LEI, 10 report to GLEIF an ultimate parent, or a direct parent when no ultimate parent is reported, whose legal address is outside the EU. Parent countries: United States 7, China 1, United Kingdom 1, Japan 1.

Companies per segment checked in GLEIF, matched to an LEI, and EU-based companies with an LEI whose reported parent is outside the EU
Segment	Checked in GLEIF	With an LEI	EU-based with an LEI: parent outside the EU	Quantum patent families (EPO)
Cryogenics and cooling	5 of 5	0	0 of 0	11
Photonics, lasers and optics	117 of 117	24	0 of 23	186
Control electronics and cryo-CMOS	24 of 24	8	0 of 8	69
Materials, fabrication and foundry	82 of 82	25	1 of 25	664
Qubit hardware platforms	76 of 76	22	0 of 21	747
Quantum software and algorithms	72 of 72	19	1 of 19	409
Quantum communication and security systems	201 of 201	57	5 of 52	755
Quantum sensors and metrology devices	109 of 111	29	0 of 26	170

OpenAlex: 73 of the 622 companies checked so far match a company institution; their works in quantum topics are listed with each company below.

GLEIF: a parent is the accounting-consolidation parent that the entity itself reports to the Global LEI System (direct parent: the closest; ultimate parent: the highest); "outside the EU" uses the legal address of that parent, compared with the 27 EU Member States. This describes reported consolidation, not an assessment of control, dependency or risk. Many smaller companies have no LEI, and many entities declare a reporting exception instead of a parent.
OpenAlex: works with at least one author affiliated with the matched institution (including its child institutions) that OpenAlex tags with at least one of these topics: Quantum Information and Cryptography (T10020), Quantum Computing Algorithms and Architecture (T10682), Quantum optics and atomic interactions (T11414), Cold Atom Physics and Bose-Einstein Condensates (T10425), Atomic and Subatomic Physics Research (T11993). Topics are assigned by OpenAlex automatically.
EPO Open Patent Services: distinct patent families (DOCDB family ids) among the publications whose applicant contains the company name, in the CPC groups G06N10, H04L9/0852, H04B10/70, each including its subgroups; at most 300 publications per company are read, so a larger count is shown as a lower bound. Applicant names vary, so the counts are approximate.

Sources: LEI data from the Global Legal Entity Identifier Foundation (GLEIF), CC0 1.0; research output from OpenAlex, CC0. Retrieval dates are given per company. No endorsement by the sources is implied. GLEIF API, GLEIF terms of use, OpenAlex.

Companies by segment

For each segment, the companies taking part in the most of its projects (up to 10), and the countries of all its companies. A company name links to its page on this portal when it has one.