Top AI companies in Paris
Companies building AI products, foundation models, and applied ML platforms. Filtered to companies headquartered in Paris.
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- IndustryAI
- HQParis
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Built from a search like: “Top AI companies in Paris”
Ranked by current headcount across AI companies headquartered in Paris. Refreshed monthly.
- 1CNRS· Paris, Île-de-France, France
The French National Centre for Scientific Research is among the world's leading research institutions. Its scientists explore the living world, matter, the Universe, and the functioning of human societies in order to meet the major challenges of today and tomorrow. Internationally recognised for the excellence of its scientific research, the CNRS is a reference in the world of research and development, as well as for the general public.
- 23.1k employees
- Founded 1939
- 2CEA· Paris, Île-de-France, France
The CEA is the French Alternative Energies and Atomic Energy Commission ("Commissariat à l'énergie atomique et aux énergies alternatives"). It is a public body established in October 1945 by General de Gaulle. A leader in research, development and innovation, the CEA mission statement has two main objectives: To become the leading technological research organization in Europe and to ensure that the nuclear deterrent remains effective in the future.The CEA is active in four main areas: low-carbon energies, defense and security, information technologies and health technologies. In each of these fields, the CEA maintains a cross-disciplinary culture of engineers and researchers, building on the synergies between fundamental and technological research.The civilian programs of the CEA received 49% of their funding from the French government, and 30% from external sources (partner companies and the European Union).The CEA had a budget of 4,3 billion euros.The CEA is based in ten research centers in France, each specializing in specific fields. The laboratories are located in the Paris region, the Rhône-Alpes, the Rhône valley, the Provence-Alpes-Côte d'Azur region, Aquitaine, Central France and Burgundy. The CEA benefits from the strong regional identities of these laboratories and the partnerships forged with other research centers, local authorities and universities.
- 19.5k employees
- Founded 1945
- 3INSERM· Paris, Île-de-France, France
Créé en 1964, l’Institut national de la santé et de la recherche médicale (Inserm) est un établissement public à caractère scientifique et technologique, placé sous la double tutelle du Ministère de l’Enseignement supérieur et de la recherche et du ministère de la Santé. Ses chercheurs ont pour vocation l’étude de toutes les maladies, des plus fréquentes aux plus rares, à travers leurs travaux de recherches biologiques, médicales et en santé des populations.L’Inserm, chercheur en santé depuis 1964Avec un budget 2013 de 927 M€, l’Inserm soutient près de 300 laboratoires répartis sur le territoire français. L’ensemble de ses 1200 équipes regroupe près de 15 000 chercheurs, ingénieurs, techniciens, gestionnaires, hospitalo-universitaires, post-doctorants...Il est actuellement dirigé par Yves Levy.L’Inserm est membre de l’Alliance nationale pour les sciences de la vie et de la santé, fondée en avril 2009 avec le CNRS, le CEA, l’Inra, l’Inria, l’IRD, l’Institut Pasteur, la Conférence des Présidents d’Université (CPU) et la Conférence des directeurs généraux de centres hospitaliers régionaux et universitaires. Cette alliance s’inscrit dans la politique de réforme du système de recherche visant à mieux coordonner le rôle des différents acteurs et à renforcer la position de la recherche française dans ce secteur par une programmation concertée. L’Inserm célèbre ses 50 ans en 2014.
- Grant
- 7.7k employees
- Founded 1964
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- 4Pasteur Network· Paris, Île-de-France, France
The Pasteur Network is an alliance of over 30 institutes which plays a crucial role in tackling global health challenges through science, innovation and public health. Its distinctive strength lies in the diversity and extensive geographic reach, spanning 25 countries across 5 continents, fostering a dynamic community of knowledge and expertise. The Pasteur Network is recognized as a WHO non-state actor, and members of the network are frequently embedded into local Ministries of Health. The PN sustains a global infrastructure encompassing 50+ national and regional reference laboratories, which includes multiple Biosafety Level 3 Laboratories, and 17 WHO Collaborating Centers. The Pasteur Network's work is guided by four strategic pillars: 1) Epidemic Preparedness, Intelligence, with focus on Climate sensitive diseases,2) Research, Development, and Innovation, 3) Knowledge Communities, and 4) Good Governance and Equity.
- Grant
- 7.7k employees
- 5Ecole normale supérieure· Paris, Île-de-France, France
Compte officiel de l’École normale supérieure | PSL composante de l'Université PSL. Haut lieu de l’excellence scientifique française, l’École normale supérieure | PSL est un établissement d’enseignement et de recherche prestigieux. Située à Paris, dans le quartier latin, l’École dispense une offre unique de formation par la recherche, riche et interdisciplinaire, à l’interface de champs d’études variés répartis dans 15 départements. L’École compte 1 200 étudiants de licence (uniquement en troisième année) et de master, ainsi que 700 doctorants ; 280 post-doctorants et 800 enseignants-chercheurs travaillent dans les laboratoires, aux côtés de 400 personnels administratifs et techniques.Les étudiants sont recrutés sur concours ou sélectionnés sur dossier et entretien. Ses enseignants et chercheurs mènent des recherches de pointe dans de nombreux domaines : biologie, chimie, sciences cognitives, informatique, mathématiques, physique, géosciences ; économie, histoire, histoire et théorie des arts, géographie, littératures et langages, philosophie, sciences de l’Antiquité, sciences sociales.Parmi ses anciens élèves, l’École compte les récipiendaires de 14 prix Nobel, des 10 médailles Fields françaises et de la moitié (27) des médailles d’or du CNRS. Les anciens élèves de l’École se dirigent vers la recherche et l’enseignement, exercent dans les corps d’État, les administrations et les entreprises ou encore initient des start-ups. L’École normale supérieure est composante de l'Université PSL.
- 6.2k employees
Find engineers at AI companies in Paris
Paris has long been a hub for AI, and the list above ranks the largest AI companies headquartered there by current headcount, drawn from public LinkedIn and Crunchbase records. With 293 matching companies in Refolk’s index, this is a good map of where the AI talent in Paris lives - useful whether you’re recruiting, partnering, or sizing a market.
The biggest AI companies in Paris tend to be the gravitational centres for specialised talent - senior engineers, ML researchers, applied scientists, designers - while the smaller ones compete on speed, equity, and proximity to founders.
Refolk converts this list into a live search. Ask for “AI engineers in Paris hiring senior staff” or “founders of AI companies in Paris who left in the last 12 months” and Refolk returns a ranked shortlist with the evidence that earned each person a spot.
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Last refreshed: Tue, 15 Sep 2026 11:49:12 GMT
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How is this ranking built?
The list draws on the public company graph - headcount and growth signals, funding history, and recency. The criteria chips at the top show exactly which filters produced it, and the methodology section explains the ranking.
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