# List of companies with in-house R&D in Neuilly-sur-Seine
Tamtam tracks 31 companies with in-house R&D headquartered in Neuilly-sur-Seine. This list ranks the 30 largest by number of employees on LinkedIn, led by Altran, Parfums Christian Dior and JCDecaux. Their median headcount is 93. Half of them were founded in 2007 or later.
The companies in Neuilly-sur-Seine with in-house R&D are primarily mid-sized to large firms, with a notable presence in IT services, consulting, and personal care product manufacturing. Companies like Altran (now Capgemini Engineering) provide engineering services, while Parfums Christian Dior creates luxury fragrances. JCDecaux is a global leader in outdoor advertising, and Suntory Beverage & Food France produces fruit beverages.
A significant cluster of these companies operates in the personal care and beauty sector, including Laboratoires Dermatologiques d'Uriage and Groupe Guinot - Mary Cohr, both specializing in skincare products. Many of these firms were founded between the 1930s and early 2000s, indicating a mix of established businesses and more recently formed enterprises.
馃嚝馃嚪 Neuilly-sur-Seine 路 30 companies 路 Updated Nov 14, 2026
| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Altran](https://www.tamtam.ai/c/altran) (capgemini-engineering.com)
Altran, now Capgemini Engineering, offers engineering services Follow them on LinkedIn for updates and insights | IT Services and IT Consulting | 馃嚝馃嚪 Neuilly-sur-Seine | 11,652 | |
| 2 | [Parfums Christian Dior](https://www.tamtam.ai/c/parfums-christian-dior) (dior.com)
Creates luxury fragrances and cosmetics, upholding a heritage of innovation and global beauty through meticulous production and cultivation of talent. | Personal Care Product Manufacturing | 馃嚝馃嚪 Neuilly-sur-Seine | 8,660 | 1946 |
| 3 | [JCDecaux](https://www.tamtam.ai/c/jcdecaux) (jcdecaux.com)
Global leader in outdoor advertising, specializing in street furniture, transport advertising, and billboard displays worldwide. | Advertising Services | 馃嚝馃嚪 Neuilly-sur-Seine | 6,312 | 1964 |
| 4 | [Orangina Suntory France](https://www.tamtam.ai/c/orangina-suntory-france) (suntorybfe.com)
A company formerly known as Orangina Suntory France rebranded to Suntory Beverage & Food France in September 2020 Visit their LinkedIn page for more information | Food and Beverage Manufacturing | 馃嚝馃嚪 Neuilly-sur-Seine | 723 | 1936 |
| 5 | [Suntory Beverage & Food France](https://www.tamtam.ai/c/suntory-beverage-and-food-france) (suntorybeverageandfood-europe.com)
French leader in fruit beverages, produces and innovates with iconic brands like Orangina and Oasis, promoting positive and sustainable practices. | Food and Beverage Manufacturing | 馃嚝馃嚪 Neuilly-sur-Seine | 723 | |
| 6 | [Square Management](https://www.tamtam.ai/c/square-management) (square-management.com)
Consulting firm specializing in strategy and organization, supporting transformation projects across multiple sectors with expert teams and research. | Business Consulting and Services | 馃嚝馃嚪 Neuilly-sur-Seine | 696 | 2008 |
| 7 | [Laboratoires Dermatologiques d'Uriage](https://www.tamtam.ai/c/laboratoires-dermatologiques-d-uriage) (uriage.fr)
French dermo-cosmetics laboratory, products sold in pharmacies and drugstores in France and over 80 countries, part of Puig group's dermo-cosmetics division. | Personal Care Product Manufacturing | 馃嚝馃嚪 Neuilly-sur-Seine | 679 | 1992 |
| 8 | [Groupe Guinot - Mary Cohr](https://www.tamtam.ai/c/groupe-guinot-mary-cohr) (guinot.com)
Global leader in professional beauty care, manufacturing advanced skincare products and providing specialized aesthetic treatments across seventeen thousand international beauty institutes and franchises. | Personal Care Product Manufacturing | 馃嚝馃嚪 Neuilly-sur-Seine | 531 | 1963 |
| 9 | [AMEXIO](https://www.tamtam.ai/c/amexio) (amexiogroup.com)
Digital transformation partner specializing in Enterprise Content Management, Customer Communication Management, and Customer Experience Management, prioritizing human excellence for successful outcomes | IT Services and IT Consulting | 馃嚝馃嚪 Neuilly-sur-Seine | 477 | 2006 |
| 10 | [Christofle](https://www.tamtam.ai/c/christofle) (christofle.com)
A leading maison collaborates with designers to create contemporary pieces, blending heritage with modernity in stunning art de la table | Retail Luxury Goods and Jewelry | 馃嚝馃嚪 Neuilly-sur-Seine | 445 | 1830 |
| 11 | [UNOWHY](https://www.tamtam.ai/c/unowhy) (unowhy.com)
A French company creating digital products like the QOOQ culinary pad and SQOOL e-education solution, with a focus on innovative technologies for schools | Technology, Information and Internet | 馃嚝馃嚪 Neuilly-sur-Seine | 218 | 2007 |
| 12 | [Baracoda Group](https://www.tamtam.ai/c/baracoda-group) (baracoda.com)
A global leader in healthtech with offices in New York, Paris, and Shanghai, focusing on improving health through innovative technology solutions | Technology, Information and Internet | 馃嚝馃嚪 Neuilly-sur-Seine | 181 | 2001 |
| 13 | [ILLUIN Technology](https://www.tamtam.ai/c/illuin-technology) (illuin.tech)
Specialists in scientific, technological, Design Thinking, and UX, driving innovation and digital transformation by leveraging AI and user-centric approaches in agile, tech-driven solutions | IT Services and IT Consulting | 馃嚝馃嚪 Neuilly-sur-Seine | 162 | 2017 |
| 14 | [Pam Building](https://www.tamtam.ai/c/pam-building) (pambuilding.com)
Designs and manufactures high-quality cast iron drainage systems for residential, commercial, and engineering structures with a focus on sustainability and innovation | Wholesale Building Materials | 馃嚝馃嚪 Neuilly-sur-Seine | 95 | |
| 15 | [Reverso](https://www.tamtam.ai/c/reverso) (context.reverso.net)
Provides AI-based language tools including translation, dictionaries, spell-checking, and language learning for individuals and large corporations worldwide in multiple languages | Technology, Information and Internet | 馃嚝馃嚪 Neuilly-sur-Seine | 93 | |
| 16 | [Cenova](https://www.tamtam.ai/c/cenova) (cenova.fr)
Cenova is a growing consulting firm specializing in helping clients transition to new B2C models, focusing on omnichannel, mobility, digitization, and personalization | Business Consulting and Services | 馃嚝馃嚪 Neuilly-sur-Seine | 79 | 2016 |
| 17 | [Olympp](https://www.tamtam.ai/c/olympp) (olympp.fr)
A consulting firm composed of technological innovation experts, creating disruptive applications using the latest technologies and best practices to solve business problems. | IT Services and IT Consulting | 馃嚝馃嚪 Neuilly-sur-Seine | 58 | 2016 |
| 18 | [Gatling](https://www.tamtam.ai/c/gatling) (gatling.io)
This company offers load testing solutions for websites and web apps to ensure optimal performance, prevent crashes, and maximize user experience | Software Development | 馃嚝馃嚪 Neuilly-sur-Seine | 46 | |
| 19 | [LES CAUSANTES](https://www.tamtam.ai/c/les-causantes) (lescausantes.com)
A sustainable growth marketing group with international presence, using agile methods and social media to boost customer growth and support startups to major brands | Advertising Services | 馃嚝馃嚪 Neuilly-sur-Seine | 43 | 2014 |
| 20 | [TAIGA](https://www.tamtam.ai/c/taiga) (taiga-cm.com)
Provides SaaS solutions for cash forecasting, working capital improvement, and sureties management with multi-currency, multi-subsidiary support and personalized operational assistance. | Financial Services | 馃嚝馃嚪 Neuilly-sur-Seine | 29 | 2009 |
| 21 | [Institut des MICI](https://www.tamtam.ai/c/institut-des-mici) (institutdesmici.fr)
Provides comprehensive medical, surgical, and paramedical care for inflammatory bowel diseases and digestive tract conditions, alongside extensive research to advance treatments and knowledge. | Hospitals and Health Care | 馃嚝馃嚪 Neuilly-sur-Seine | 23 | 2022 |
| 22 | [BLIINK](https://www.tamtam.ai/c/bliink) (bliink.io)
Specializes in online contextual advertising using visual intelligence to analyze premium media and deliver targeted, relevant ads to consumers. | Technology, Information and Internet | 馃嚝馃嚪 Neuilly-sur-Seine | 21 | 2018 |
| 23 | [CIMV](https://www.tamtam.ai/c/cimv) (cimv.fr)
A biorefinery company developing technology to convert renewable resources into valuable bioproducts, acting as a bridge between agriculture and industry | Chemical Manufacturing | 馃嚝馃嚪 Neuilly-sur-Seine | 15 | 1998 |
| 24 | [Novagen Conseil](https://www.tamtam.ai/c/novagen-conseil) (bit.ly)
Specializes in AI and data expertise, providing consulting and R&D to optimize clients' data assets for marketing, finance, and performance improvements. | IT Services and IT Consulting | 馃嚝馃嚪 Neuilly-sur-Seine | 15 | 2015 |
| 25 | [SIGMA PLUS](https://www.tamtam.ai/c/sigma-plus) (sigmaplus.fr)
Established in 1979, the company initially focused on software simulation modeling By 1998, it expanded to offer information analysis and processing services in various industries | Software Development | 馃嚝馃嚪 Neuilly-sur-Seine | 15 | 1979 |
| 26 | [RCS Europe](https://www.tamtam.ai/c/rcs-europe) (rcseurope.fr)
Provides broadcast software, tools, expertise, and real-time audio recognition technology to radio stations, TV channels, and internet broadcasters worldwide. | Software Development | 馃嚝馃嚪 Neuilly-sur-Seine | 13 | |
| 27 | [Userware](https://www.tamtam.ai/c/userware) (userware.dev)
A company founded in 2007 offers an open-source framework, OpenSilver, to salvage legacy Silverlight applications with pixel-perfect results and comprehensive migration services | Software Development | 馃嚝馃嚪 Neuilly-sur-Seine | 13 | 2007 |
| 28 | [LYSOGENE](https://www.tamtam.ai/c/lysogene) (lysogene.com)
A biopharmaceutical company specializing in gene therapy for children with neurodegenerative lysosomal storage disorders, founded by a mother determined to improve patients' lives | Biotechnology Research | 馃嚝馃嚪 Neuilly-sur-Seine | 11 | 2009 |
| 29 | [MotorK France](https://www.tamtam.ai/c/motork-france) (motork.ai)
Provides SaaS platform with digital solutions for automotive manufacturers, dealers, and service centers to improve sales, marketing, and customer experience. | Software Development | 馃嚝馃嚪 Neuilly-sur-Seine | 9 | 2010 |
| 30 | [Humanscale France](https://www.tamtam.ai/c/humanscale-france) (humanscale.com)
A global leader in ergonomic design and manufacturing, creating innovative products to improve health, comfort, and productivity in the workplace | Furniture and Home Furnishings Manufacturing | 馃嚝馃嚪 Neuilly-sur-Seine | 3 | 1983 |
## How this list is built
Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 14, 2026.
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Source: https://www.tamtam.ai/l/r-and-d-companies-neuilly-sur-seine