The Technology, Information and Internet companies in Hauts-de-Seine listed here are a mix of established firms and companies founded in the 2000s. They provide a range of digital services, from media and e-commerce to specialized IT solutions. For example, Reworld Media is a digital group with proprietary media brands, Oscaro is an online platform for vehicle spare parts, and Transactis France offers IT solutions for electronic payments.
Several companies focus on digital services for businesses and consumers. Local.fr provides communication solutions to French local businesses, while e-TF1 manages TF1 Group's online media platforms. A notable pattern is the concentration of headquarters in Boulogne-Billancourt, Nanterre, and Neuilly-sur-Seine.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Reworld Mediareworldmedia.com
An international digital group with proprietary media brands and a partner network, offering global advertising solutions through Media Branding and Media Performance |
843 | |||
| 2 |
Oscarooscaro.com
Online platform for new, original vehicle spare parts. Largest catalog for motorists to maintain their vehicles, pioneer in automotive DIY. |
442 | |||
| 3 | 402 | ||||
| 4 |
e-TF1groupe-tf1.fr
Management and development of TF1 Group's online and mobile media platforms, including websites and emerging digital media channels. |
354 | |||
| 5 |
Aquarelleaquarelle.com
Leading flower delivery company in France, offering a wide selection of flowers, bouquets, plants, chocolates, and gift sets nationwide and in select European countries since 1987 |
337 | |||
| 6 |
Transactis Francetransactis.fr
A leading player in Instant Payment in France, offering IT solutions for electronic payments, bank transfers, and direct debits through a B to B business model |
280 | |||
| 7 |
Edenred Solutions CSEsolutionscse.edenred.fr
Software solutions for CSEs to manage communication, administration, accounting, and distribute benefits, enhancing employee well-being and simplifying elected officials' tasks. |
276 | |||
| 8 |
Webhelp KYC Servicesgreen-point.fr
A pioneer in digital KYC processes, enabling clients to streamline on-boarding, reduce fraud, and enhance user experience through customizable cloud services |
249 | |||
| 9 |
Vocalcomvocalcom.com
Vocalcom provides omnichannel cloud contact center software for customer service, sales, and debt collection, enhancing customer experiences across various channels. |
223 | |||
| 10 | 
SBCfacebook.com
A consulting firm specializing in advising businesses on social and corporate issues |
220 | |||
| 11 |
UNOWHYunowhy.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 |
218 | |||
| 12 |
BAZARCHICfr.bazarchic.com
Bazarchic is a leading French luxury private sales site offering a diverse range of discounted fashion, wine, tech, and luxury travel items |
201 | |||
| 13 |
Baracoda Groupbaracoda.com
A global leader in healthtech with offices in New York, Paris, and Shanghai, focusing on improving health through innovative technology solutions |
181 | |||
| 14 | 176 | ||||
| 15 |
Toshiba TFIStoshibatec.fr
A leading provider of office equipment and document management solutions, offering a range of multifunction devices, software solutions, and services to businesses |
169 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 16 |
Click&Boatclickandboat.com
online platform connecting boat owners and renters for affordable, safe, and flexible boat rentals with or without skipper worldwide |
162 | |||
| 17 | 161 | ||||
| 18 |
Weboramaweborama.com
Innovative AdTech company in France and Europe specializing in semantic AI for digital advertising, offering contextual targeting tools and data-driven strategies for success |
152 | |||
| 19 |
UX-Republicux-republic.com
Specializes in designing digital interfaces for brands, from problem analysis to prototyping and testing of concepts across various digital media. |
121 | |||
| 20 |
LeHiboulehibou.com
Intermediation platform connecting freelancers and large companies with top IT experts using AI and Big Data, offering tailored support and rapid solutions. |
117 | |||
| 21 |
UltraEdgeultraedge.com
Provides independent, neutral edge colocation services through a nationwide network of datacenters across France, enabling local data hosting. |
107 | |||
| 22 |
Reversocontext.reverso.net
Provides AI-based language tools including translation, dictionaries, spell-checking, and language learning for individuals and large corporations worldwide in multiple languages |
93 | |||
| 23 |
Horyzonhoryzon.com
media company specializing in digital and print publishing, audiovisual production, brand content, delivering tailored strategies and targeted content distribution |
76 | |||
| 24 |
SEMANTIWEB | Groupe EDGsemantiweb.fr
S茅mantiweb specializes in data structuring and strategic analysis of web conversations, providing brands with unique insights for market intelligence and communication strategies |
70 | |||
| 25 |
Manymoremanymore.fr
Prisme offers a powerful and innovative management solution for financial advisors, consolidating client contracts, managing risks, complying with regulations, and optimizing performance |
69 | |||
| 26 |
Cabestanisoskele.fr
Cabestan is a SaaS platform specializing in relationship marketing, part of ISOSKELE, the data marketing and precision communication brand of La Poste Group |
69 | |||
| 27 | 58 | ||||
| 28 |
Energismeenergisme.com
Energy intelligence software platform enabling companies and local authorities to manage energy expenses through data collection, standardization, dashboards, predictive modeling, and optimization tools |
55 | |||
| 29 |
Webdentiste - DentalCall IAwebdentiste.eu
Development of turnkey digital solutions including websites, waiting room TV, educational videos, magazines, Google reviews, and social media for dental offices. |
44 | |||
| 30 |
DOTSCREENdotscreen.com
Specialized agency designing and developing custom multiscreen user interfaces and apps for smart TVs, consoles, smartphones, and connected devices worldwide. |
44 | |||
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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 12, 2026.
More company lists in the Hauts-de-Seine department
- The largest companies in the Hauts-de-Seine department 5,160
- Multinational companies in the Hauts-de-Seine department 1,231
- IT services companies in the Hauts-de-Seine department 737
- IT Services and IT Consulting companies in the Hauts-de-Seine department 706
- Professional services firms in the Hauts-de-Seine department 629
- Consulting firms in the Hauts-de-Seine department 563
- Companies with in-house R&D in the Hauts-de-Seine department 510
- SaaS companies in the Hauts-de-Seine department 389
- Business Consulting and Services companies in the Hauts-de-Seine department 304
- Software Development companies in the Hauts-de-Seine department 301
- Retail chains in the Hauts-de-Seine department 292
- Manufacturers in the Hauts-de-Seine department 285
- Advertising Services companies in the Hauts-de-Seine department 281
- Marketing and communications agencies in the Hauts-de-Seine department 235
- Subscription businesses in the Hauts-de-Seine department 228
- Hardware manufacturers in the Hauts-de-Seine department 199
- Financial services firms in the Hauts-de-Seine department 198
- Companies with a mobile app in the Hauts-de-Seine department 189
- Critical infrastructure operators in the Hauts-de-Seine department 169
- AI companies in the Hauts-de-Seine department 159
- Education providers in the Hauts-de-Seine department 159
- Cybersecurity companies in the Hauts-de-Seine department 154
- Distributors and wholesalers in the Hauts-de-Seine department 154
- Recruitment and staffing agencies in the Hauts-de-Seine department 152
The same list elsewhere in France
- Technology, Information and Internet companies in France 1,662
- Technology, Information and Internet companies in 脦le-de-France 982
- Technology, Information and Internet companies in Auvergne-Rh么ne-Alpes 153
- Technology, Information and Internet companies in the Rh么ne department 84
- Technology, Information and Internet companies in Nouvelle-Aquitaine 82
- Technology, Information and Internet companies in Provence-Alpes-C么te d'Azur 80
- Technology, Information and Internet companies in Occitanie 68
- Technology, Information and Internet companies in Hauts-de-France 65
- Technology, Information and Internet companies in Grand Est 61
- Technology, Information and Internet companies in the Nord department 53
- Technology, Information and Internet companies in the Bouches-du-Rh么ne department 49
- Technology, Information and Internet companies in the Gironde department 48
- Technology, Information and Internet companies in Pays de la Loire 48
- Technology, Information and Internet companies in the Loire-Atlantique department 38
- Technology, Information and Internet companies in Brittany 35
- Technology, Information and Internet companies in the Haute-Garonne department 35
- Technology, Information and Internet companies in the Ille-et-Vilaine department 28
- Technology, Information and Internet companies in Normandy 28
- Technology, Information and Internet companies in Paris 807
- Technology, Information and Internet companies in Lyon 68
- Technology, Information and Internet companies in Marseille 32
- Technology, Information and Internet companies in Lille 30
- Technology, Information and Internet companies in Nantes 29
- Technology, Information and Internet companies in Toulouse 29