# Top 30 Technology, Information and Internet companies in the Hauts-de-Seine department

Tamtam tracks 107 Technology, Information and Internet companies headquartered in the Hauts-de-Seine department. This list ranks the 30 largest by number of employees on LinkedIn, led by Reworld Media, Oscaro and local.fr. Their median headcount is 169. Half of them were founded in 2006 or later. The most common headquarters are Boulogne-Billancourt (8), Levallois-Perret (5) and Courbevoie (3).

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.

🇫🇷 Hauts-de-Seine · 30 companies · Updated Nov 12, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Reworld Media](https://www.tamtam.ai/c/reworld-media) (reworldmedia.com)<br>An international digital group with proprietary media brands and a partner network, offering global advertising solutions through Media Branding and Media Performance | Technology, Information and Internet | 🇫🇷 Boulogne-Billancourt | 843 |  |
| 2 | [Oscaro](https://www.tamtam.ai/c/oscaro) (oscaro.com)<br>Online platform for new, original vehicle spare parts. Largest catalog for motorists to maintain their vehicles, pioneer in automotive DIY. | Technology, Information and Internet | 🇫🇷 Gennevilliers | 442 | 2001 |
| 3 | [local.fr](https://www.tamtam.ai/c/local-fr) (local.fr)<br>A marketing and local media company specialized in providing communication solutions to French local businesses, including websites, SEO, and multimedia content creation | Technology, Information and Internet | 🇫🇷 Nanterre | 402 | 1984 |
| 4 | [e-TF1](https://www.tamtam.ai/c/e-tf1) (groupe-tf1.fr)<br>Management and development of TF1 Group's online and mobile media platforms, including websites and emerging digital media channels. | Technology, Information and Internet | 🇫🇷 Boulogne-Billancourt | 354 | 1999 |
| 5 | [Aquarelle](https://www.tamtam.ai/c/aquarelle) (aquarelle.com)<br>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 | Technology, Information and Internet | 🇫🇷 Levallois-Perret | 337 | 1997 |
| 6 | [Transactis France](https://www.tamtam.ai/c/transactis-france) (transactis.fr)<br>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 | Technology, Information and Internet | 🇫🇷 Nanterre | 280 | 2008 |
| 7 | [Edenred Solutions CSE](https://www.tamtam.ai/c/edenred-solutions-cse) (solutionscse.edenred.fr)<br>Software solutions for CSEs to manage communication, administration, accounting, and distribute benefits, enhancing employee well-being and simplifying elected officials' tasks. | Technology, Information and Internet | 🇫🇷 Malakoff | 276 |  |
| 8 | [Webhelp KYC Services](https://www.tamtam.ai/c/webhelp-kyc-services-issy-les-moulineaux) (green-point.fr)<br>A pioneer in digital KYC processes, enabling clients to streamline on-boarding, reduce fraud, and enhance user experience through customizable cloud services | Technology, Information and Internet | 🇫🇷 Issy-les-Moulineaux | 249 | 2009 |
| 9 | [Vocalcom](https://www.tamtam.ai/c/vocalcom) (vocalcom.com)<br>Vocalcom provides omnichannel cloud contact center software for customer service, sales, and debt collection, enhancing customer experiences across various channels. | Technology, Information and Internet | 🇫🇷 Courbevoie | 223 | 1995 |
| 10 | [SBC](https://www.tamtam.ai/c/sbc-boulogne-billancourt) (facebook.com)<br>A consulting firm specializing in advising businesses on social and corporate issues | Technology, Information and Internet | 🇫🇷 Boulogne-Billancourt | 220 | 1986 |
| 11 | [UNOWHY](https://www.tamtam.ai/c/unowhy) (unowhy.com)<br>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 | 🇫🇷 Neuilly-sur-Seine | 218 | 2007 |
| 12 | [BAZARCHIC](https://www.tamtam.ai/c/bazarchic) (fr.bazarchic.com)<br>Bazarchic is a leading French luxury private sales site offering a diverse range of discounted fashion, wine, tech, and luxury travel items | Technology, Information and Internet | 🇫🇷 Clichy | 201 | 2006 |
| 13 | [Baracoda Group](https://www.tamtam.ai/c/baracoda-group) (baracoda.com)<br>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 | 🇫🇷 Neuilly-sur-Seine | 181 | 2001 |
| 14 | [UNAMI](https://www.tamtam.ai/c/unami) (unami.fr)<br>Digital agency supporting over thirty major clients in B2C and B2B marketing by combining creative and performance marketing expertise. | Technology, Information and Internet | 🇫🇷 Puteaux | 176 | 2009 |
| 15 | [Toshiba TFIS](https://www.tamtam.ai/c/toshiba-tfis) (toshibatec.fr)<br>A leading provider of office equipment and document management solutions, offering a range of multifunction devices, software solutions, and services to businesses | Technology, Information and Internet | 🇫🇷 Rueil-Malmaison | 169 | 2001 |
| 16 | [Click&Boat](https://www.tamtam.ai/c/click-and-boat) (clickandboat.com)<br>online platform connecting boat owners and renters for affordable, safe, and flexible boat rentals with or without skipper worldwide | Technology, Information and Internet | 🇫🇷 Boulogne-Billancourt | 162 | 2014 |
| 17 | [Pixid](https://www.tamtam.ai/c/pixid) (pixid.fr)<br>Web-based platform for managing temporary and flexible employment, optimizing supplier relations, skill acquisition, cost efficiency, and document virtualization for improved productivity | Technology, Information and Internet | 🇫🇷 Courbevoie | 161 | 2004 |
| 18 | [Weborama](https://www.tamtam.ai/c/weborama) (weborama.com)<br>Innovative AdTech company in France and Europe specializing in semantic AI for digital advertising, offering contextual targeting tools and data-driven strategies for success | Technology, Information and Internet | 🇫🇷 Levallois-Perret | 152 | 1998 |
| 19 | [UX-Republic](https://www.tamtam.ai/c/ux-republic) (ux-republic.com)<br>Specializes in designing digital interfaces for brands, from problem analysis to prototyping and testing of concepts across various digital media. | Technology, Information and Internet | 🇫🇷 Asnières-sur-Seine | 121 | 2013 |
| 20 | [LeHibou](https://www.tamtam.ai/c/lehibou) (lehibou.com)<br>Intermediation platform connecting freelancers and large companies with top IT experts using AI and Big Data, offering tailored support and rapid solutions. | Technology, Information and Internet | 🇫🇷 Boulogne-Billancourt | 117 | 2016 |
| 21 | [UltraEdge](https://www.tamtam.ai/c/ultraedge) (ultraedge.com)<br>Provides independent, neutral edge colocation services through a nationwide network of datacenters across France, enabling local data hosting. | Technology, Information and Internet | 🇫🇷 Courbevoie | 107 | 2024 |
| 22 | [Reverso](https://www.tamtam.ai/c/reverso) (context.reverso.net)<br>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 | 🇫🇷 Neuilly-sur-Seine | 93 |  |
| 23 | [Horyzon](https://www.tamtam.ai/c/horyzon) (horyzon.com)<br>media company specializing in digital and print publishing, audiovisual production, brand content, delivering tailored strategies and targeted content distribution | Technology, Information and Internet | 🇫🇷 Boulogne-Billancourt | 76 | 2004 |
| 24 | [SEMANTIWEB \| Groupe EDG](https://www.tamtam.ai/c/semantiweb-groupe-edg) (semantiweb.fr)<br>Sémantiweb specializes in data structuring and strategic analysis of web conversations, providing brands with unique insights for market intelligence and communication strategies | Technology, Information and Internet | 🇫🇷 Levallois-Perret | 70 | 2011 |
| 25 | [Manymore](https://www.tamtam.ai/c/manymore) (manymore.fr)<br>Prisme offers a powerful and innovative management solution for financial advisors, consolidating client contracts, managing risks, complying with regulations, and optimizing performance | Technology, Information and Internet | 🇫🇷 Puteaux | 69 | 2006 |
| 26 | [Cabestan](https://www.tamtam.ai/c/cabestan) (isoskele.fr)<br>Cabestan is a SaaS platform specializing in relationship marketing, part of ISOSKELE, the data marketing and precision communication brand of La Poste Group | Technology, Information and Internet | 🇫🇷 Montrouge | 69 | 1998 |
| 27 | [PROTYS](https://www.tamtam.ai/c/protys) (protys.fr)<br>PROTYS simplifies coordination for construction projects by providing a digital platform for stakeholders to streamline administrative processes and communication | Technology, Information and Internet | 🇫🇷 Levallois-Perret | 58 | 2008 |
| 28 | [Energisme](https://www.tamtam.ai/c/energisme) (energisme.com)<br>Energy intelligence software platform enabling companies and local authorities to manage energy expenses through data collection, standardization, dashboards, predictive modeling, and optimization tools | Technology, Information and Internet | 🇫🇷 Boulogne-Billancourt | 55 | 2004 |
| 29 | [Webdentiste - DentalCall IA](https://www.tamtam.ai/c/webdentiste-dentalcall-ia) (webdentiste.eu)<br>Development of turnkey digital solutions including websites, waiting room TV, educational videos, magazines, Google reviews, and social media for dental offices. | Technology, Information and Internet | 🇫🇷 Levallois-Perret | 44 | 2007 |
| 30 | [DOTSCREEN](https://www.tamtam.ai/c/dotscreen) (dotscreen.com)<br>Specialized agency designing and developing custom multiscreen user interfaces and apps for smart TVs, consoles, smartphones, and connected devices worldwide. | Technology, Information and Internet | 🇫🇷 Boulogne-Billancourt | 44 | 2011 |

## 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](https://www.tamtam.ai/l/largest-companies-hauts-de-seine) (5,160)
- [Multinational companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/multinational-companies-hauts-de-seine) (1,231)
- [IT services companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/it-services-companies-hauts-de-seine) (737)
- [IT Services and IT Consulting companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-hauts-de-seine) (706)
- [Professional services firms in the Hauts-de-Seine department](https://www.tamtam.ai/l/professional-services-firms-hauts-de-seine) (629)
- [Consulting firms in the Hauts-de-Seine department](https://www.tamtam.ai/l/consulting-firms-hauts-de-seine) (563)
- [Companies with in-house R&D in the Hauts-de-Seine department](https://www.tamtam.ai/l/r-and-d-companies-hauts-de-seine) (510)
- [SaaS companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/saas-companies-hauts-de-seine) (389)
- [Business Consulting and Services companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/business-consulting-and-services-companies-hauts-de-seine) (304)
- [Software Development companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/software-development-companies-hauts-de-seine) (301)
- [Retail chains in the Hauts-de-Seine department](https://www.tamtam.ai/l/retail-chains-hauts-de-seine) (292)
- [Manufacturers in the Hauts-de-Seine department](https://www.tamtam.ai/l/manufacturers-hauts-de-seine) (285)
- [Advertising Services companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/advertising-services-companies-hauts-de-seine) (281)
- [Marketing and communications agencies in the Hauts-de-Seine department](https://www.tamtam.ai/l/marketing-agencies-hauts-de-seine) (235)
- [Subscription businesses in the Hauts-de-Seine department](https://www.tamtam.ai/l/subscription-businesses-hauts-de-seine) (228)
- [Hardware manufacturers in the Hauts-de-Seine department](https://www.tamtam.ai/l/hardware-companies-hauts-de-seine) (199)
- [Financial services firms in the Hauts-de-Seine department](https://www.tamtam.ai/l/financial-services-firms-hauts-de-seine) (198)
- [Companies with a mobile app in the Hauts-de-Seine department](https://www.tamtam.ai/l/companies-with-mobile-app-hauts-de-seine) (189)
- [Critical infrastructure operators in the Hauts-de-Seine department](https://www.tamtam.ai/l/critical-infrastructure-operators-hauts-de-seine) (169)
- [AI companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/ai-companies-hauts-de-seine) (159)
- [Education providers in the Hauts-de-Seine department](https://www.tamtam.ai/l/education-companies-hauts-de-seine) (159)
- [Cybersecurity companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/cybersecurity-companies-hauts-de-seine) (154)
- [Distributors and wholesalers in the Hauts-de-Seine department](https://www.tamtam.ai/l/distributors-and-wholesalers-hauts-de-seine) (154)
- [Recruitment and staffing agencies in the Hauts-de-Seine department](https://www.tamtam.ai/l/recruitment-agencies-hauts-de-seine) (152)

## The same list elsewhere in France

- [Technology, Information and Internet companies in France](https://www.tamtam.ai/l/technology-information-and-internet-companies-france) (1,662)
- [Technology, Information and Internet companies in Île-de-France](https://www.tamtam.ai/l/technology-information-and-internet-companies-ile-de-france) (982)
- [Technology, Information and Internet companies in Auvergne-Rhône-Alpes](https://www.tamtam.ai/l/technology-information-and-internet-companies-auvergne-rhone-alpes) (153)
- [Technology, Information and Internet companies in the Rhône department](https://www.tamtam.ai/l/technology-information-and-internet-companies-rhone) (84)
- [Technology, Information and Internet companies in Nouvelle-Aquitaine](https://www.tamtam.ai/l/technology-information-and-internet-companies-nouvelle-aquitaine) (82)
- [Technology, Information and Internet companies in Provence-Alpes-Côte d'Azur](https://www.tamtam.ai/l/technology-information-and-internet-companies-provence-alpes-cote-dazur) (80)
- [Technology, Information and Internet companies in Occitanie](https://www.tamtam.ai/l/technology-information-and-internet-companies-occitanie) (68)
- [Technology, Information and Internet companies in Hauts-de-France](https://www.tamtam.ai/l/technology-information-and-internet-companies-hauts-de-france) (65)
- [Technology, Information and Internet companies in Grand Est](https://www.tamtam.ai/l/technology-information-and-internet-companies-grand-est) (61)
- [Technology, Information and Internet companies in the Nord department](https://www.tamtam.ai/l/technology-information-and-internet-companies-nord) (53)
- [Technology, Information and Internet companies in the Bouches-du-Rhône department](https://www.tamtam.ai/l/technology-information-and-internet-companies-bouches-du-rhone) (49)
- [Technology, Information and Internet companies in the Gironde department](https://www.tamtam.ai/l/technology-information-and-internet-companies-gironde) (48)
- [Technology, Information and Internet companies in Pays de la Loire](https://www.tamtam.ai/l/technology-information-and-internet-companies-pays-de-la-loire) (48)
- [Technology, Information and Internet companies in the Loire-Atlantique department](https://www.tamtam.ai/l/technology-information-and-internet-companies-loire-atlantique) (38)
- [Technology, Information and Internet companies in Brittany](https://www.tamtam.ai/l/technology-information-and-internet-companies-brittany) (35)
- [Technology, Information and Internet companies in the Haute-Garonne department](https://www.tamtam.ai/l/technology-information-and-internet-companies-haute-garonne) (35)
- [Technology, Information and Internet companies in the Ille-et-Vilaine department](https://www.tamtam.ai/l/technology-information-and-internet-companies-ille-et-vilaine) (28)
- [Technology, Information and Internet companies in Normandy](https://www.tamtam.ai/l/technology-information-and-internet-companies-normandy) (28)
- [Technology, Information and Internet companies in Paris](https://www.tamtam.ai/l/technology-information-and-internet-companies-paris) (807)
- [Technology, Information and Internet companies in Lyon](https://www.tamtam.ai/l/technology-information-and-internet-companies-lyon) (68)
- [Technology, Information and Internet companies in Marseille](https://www.tamtam.ai/l/technology-information-and-internet-companies-marseille) (32)
- [Technology, Information and Internet companies in Lille](https://www.tamtam.ai/l/technology-information-and-internet-companies-lille) (30)
- [Technology, Information and Internet companies in Nantes](https://www.tamtam.ai/l/technology-information-and-internet-companies-nantes) (29)
- [Technology, Information and Internet companies in Toulouse](https://www.tamtam.ai/l/technology-information-and-internet-companies-toulouse) (29)

## The same list elsewhere

- [Technology, Information and Internet companies in the world](https://www.tamtam.ai/l/technology-information-and-internet-companies-in-the-world) (6,284)
- [Technology, Information and Internet companies in Europe](https://www.tamtam.ai/l/technology-information-and-internet-companies-in-europe) (3,206)

---

Source: https://www.tamtam.ai/l/technology-information-and-internet-companies-hauts-de-seine