# Multinational companies headquartered in Boulogne-Billancourt

Tamtam tracks 188 multinational companies headquartered in Boulogne-Billancourt. This list ranks the 30 largest by number of employees on LinkedIn, led by Sodexo Live!, ALTEN and Astek. Their median headcount is 2,300. Half of them were founded in 1988 or later.

These multinational companies in Boulogne-Billancourt primarily operate in IT services, engineering, and manufacturing, with a strong presence in sectors such as hospitality, renewable energy, and real estate. The companies listed are generally large groups, many of which have a significant international footprint. Sodexo Live! delivers sports and leisure experiences, while ALTEN provides engineering and IT services. GE Renewable Energy engineers energy products, and BNP Paribas Real Estate offers comprehensive real estate services. Astek supports digital transformation, and FDJ UNITED is a European champion in gaming and betting.

A notable pattern among these companies is their diverse founding eras, ranging from the late 19th century with CFAO (1887) and GE Grid Solutions (1892) to more recent establishments like Antalis (2000). This indicates a blend of long-standing industrial players and more modern service-oriented firms. The concentration of IT services and IT consulting companies, such as Astek, Cegedim, and VISEO, also highlights a significant focus on technological solutions within this business cluster.

🇫🇷 Boulogne-Billancourt · 30 companies · Updated Nov 12, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Sodexo Live!](https://www.tamtam.ai/c/sodexo-live) (sodexolive.com)<br>Delivers world-class sports, leisure, and travel experiences, surprising and delighting guests, enriching lives, and turning venues and events into unforgettable memories, boosting revenue growth. | Hospitality | 🇫🇷 Boulogne-Billancourt | 412,000 |  |
| 2 | [ALTEN](https://www.tamtam.ai/c/alten) (alten.com)<br>Provides engineering and IT services, supporting businesses in technological and sustainable transformation across various industries with high-level consultant-engineers. | Engineering Services | 🇫🇷 Boulogne-Billancourt | 38,710 | 1988 |
| 3 | [Astek](https://www.tamtam.ai/c/astek) (astekgroup.fr)<br>Supports clients with high-value service, deep technical expertise across technology, operations, and engineering, focusing on sustainable digital transformation with humans at the core. | IT Services and IT Consulting | 🇫🇷 Boulogne-Billancourt | 6,035 | 1988 |
| 4 | [FDJ UNITED](https://www.tamtam.ai/c/fdj-united) (groupefdj.com)<br>European champion in gaming and betting, operating a diverse portfolio of iconic brands for 33 million players across 15 countries. | Gambling Facilities and Casinos | 🇫🇷 Boulogne-Billancourt | 5,237 | 1933 |
| 5 | [GE Renewable Energy](https://www.tamtam.ai/c/ge-renewable-energy) (ge.com)<br>Engineers energy products and digital services using wind, solar, and hydro resources for global customers, delivering affordable, reliable, and sustainable power. | Renewable Energy Equipment Manufacturing | 🇫🇷 Boulogne-Billancourt | 4,994 |  |
| 6 | [GE Grid Solutions](https://www.tamtam.ai/c/ge-grid-solutions) (gevernova.com)<br>Provides utilities and industries with equipment, systems, services for reliable power delivery from generation to consumers, focusing on renewable integration and energy transition acceleration. | Electric Power Transmission, Control, and Distribution | 🇫🇷 Boulogne-Billancourt | 4,934 | 1892 |
| 7 | [Synergie France](https://www.tamtam.ai/c/synergie-france) (synergie.fr)<br>French leader in HR services: recruitment, training, and HR consulting Providing solutions in various sectors, emphasizing proximity, performance, and diversity | Human Resources Services | 🇫🇷 Boulogne-Billancourt | 4,804 |  |
| 8 | [BNP Paribas Real Estate](https://www.tamtam.ai/c/bnp-paribas-real-estate) (bnpparibas.com)<br>Offers comprehensive real estate services including property development, transactions, consulting, valuation, and property management across Europe, the Middle East, and Asia. | Real Estate | 🇫🇷 Boulogne-Billancourt | 4,173 | 1963 |
| 9 | [Cegedim](https://www.tamtam.ai/c/cegedim) (cegedim.com)<br>Technology and services for digital data flow management in healthcare ecosystems and B2B, plus business software publishing for healthcare and insurance professionals. | IT Services and IT Consulting | 🇫🇷 Boulogne-Billancourt | 4,103 | 1969 |
| 10 | [Delpharm](https://www.tamtam.ai/c/delpharm) (delpharm.com)<br>A leading Contract Development and Manufacturing Organization (CDMO) with 18 plants worldwide producing various dosage forms and serving demanding customers for 30 years | Pharmaceutical Manufacturing | 🇫🇷 Boulogne-Billancourt | 3,937 |  |
| 11 | [Antalis](https://www.tamtam.ai/c/antalis) (antalis.com)<br>Distributes papers, industrial packaging, and visual communication media globally, offering products and services through e-commerce solutions to businesses. | Wholesale | 🇫🇷 Boulogne-Billancourt | 3,376 | 2000 |
| 12 | [VISEO](https://www.tamtam.ai/c/viseo) (viseo.com)<br>Assists clients globally with digital and business transformation using advanced technology and industry expertise for productivity, innovation, and competitiveness. | IT Services and IT Consulting | 🇫🇷 Boulogne-Billancourt | 3,016 | 1999 |
| 13 | [CFAO](https://www.tamtam.ai/c/cfao) (cfaogroup.com)<br>Contributes to growth and industrialisation in Africa, providing mobility, healthcare, consumer goods, infrastructure and energy solutions to the continent's emerging middle class. | International Trade and Development | 🇫🇷 Boulogne-Billancourt | 2,761 | 1887 |
| 14 | [Acolad group](https://www.tamtam.ai/c/acolad-group) (acolad.com)<br>Global content and language solutions provider; empowers organizations to localize everywhere; combines human creativity and technology; top 10 language services leader. | Translation and Localization | 🇫🇷 Boulogne-Billancourt | 2,324 | 1995 |
| 15 | [Apside](https://www.tamtam.ai/c/apside) (apside.com)<br>Provides consulting, engineering in Information Systems, Technical and Scientific Computing, Automotive and Financial Engineering, for large French and European groups. | IT Services and IT Consulting | 🇫🇷 Boulogne-Billancourt | 2,300 | 1976 |
| 16 | [Sonepar France](https://www.tamtam.ai/c/sonepar-france) (soneparfrance.fr)<br>Global leader in electrical equipment, solutions, and services distribution, supporting professionals with renovation and construction projects through omnichannel experience and sustainable solutions across residential, commercial, and industrial markets. | Wholesale | 🇫🇷 Boulogne-Billancourt | 2,284 |  |
| 17 | [agap2](https://www.tamtam.ai/c/agap2) (agap2.com)<br>Global consulting firm specializing in industries and information systems, creating value for customers and consultants through innovation and extensive technical know-how. | Business Consulting and Services | 🇫🇷 Boulogne-Billancourt | 2,075 | 2005 |
| 18 | [Berger-Levrault](https://www.tamtam.ai/c/berger-levrault) (berger-levrault.com)<br>Provides software solutions for public sector, healthcare, education, and industry, focusing on HR, financial management, and maintenance management for global customers. | IT Services and IT Consulting | 🇫🇷 Boulogne-Billancourt | 2,064 | 1676 |
| 19 | [Davidson consulting](https://www.tamtam.ai/c/davidson-consulting) (davidson.fr)<br>A management consulting and technology company with over 2,000 employees, expanding internationally with a focus on employee well-being and creativity | Business Consulting and Services | 🇫🇷 Boulogne-Billancourt | 1,843 | 2005 |
| 20 | [asmodee](https://www.tamtam.ai/c/asmodee) (asmodee.com)<br>Entertainment leader, specialized in tabletop games, offers an extensive catalog of games, creating opportunities for players globally to connect and engage. | Entertainment Providers | 🇫🇷 Boulogne-Billancourt | 1,823 |  |
| 21 | [Hilti France](https://www.tamtam.ai/c/hilti-france) (hilti.fr)<br>Provides advanced tools, technologies, software, and services for the construction industry, helping clients build faster, safer, and more boldly worldwide, with a focus on innovation. | Construction | 🇫🇷 Boulogne-Billancourt | 1,675 | 1941 |
| 22 | [Yoplait](https://www.tamtam.ai/c/yoplait) (yoplait.fr)<br>Production and marketing of fresh dairy products including yogurt varieties, with global presence and recognized brand signature. | Food and Beverage Manufacturing | 🇫🇷 Boulogne-Billancourt | 1,222 | 1965 |
| 23 | [Nuxe Group](https://www.tamtam.ai/c/nuxe-group) (nuxe.com)<br>French cosmetics brand producing effective, ultra-sensorial face and body care. They offer certified organic skincare, expert anti-aging products, and spa services. | Personal Care Product Manufacturing | 🇫🇷 Boulogne-Billancourt | 1,087 | 1989 |
| 24 | [Groupe Mécanique Découpage / GMD](https://www.tamtam.ai/c/groupe-mecanique-decoupage-gmd) (groupe-gmd.com)<br>Specializes in metal blanking-stamping, plastic injection molding, thermoforming, and aluminum smelting, providing reliable industrial subcontracting services. | Motor Vehicle Parts Manufacturing | 🇫🇷 Boulogne-Billancourt | 1,080 |  |
| 25 | [Rentokil Initial France](https://www.tamtam.ai/c/rentokil-initial-france) (rentokil-initial.com)<br>Pest control, hygiene solutions, cleaning, catering, interior landscaping, package delivery, and integrated facilities services for diverse customers. | Environmental Services | 🇫🇷 Boulogne-Billancourt | 979 | 1927 |
| 26 | [Viveris](https://www.tamtam.ai/c/viveris) (viveris.fr)<br>consulting and engineering company for information systems, technical computing, and embedded systems, providing support from definition to integration. | Software Development | 🇫🇷 Boulogne-Billancourt | 899 | 1986 |
| 27 | [Nomios Group](https://www.tamtam.ai/c/nomios-group) (nomios.com)<br>Designs, secures, and manages digital infrastructures, developing innovative cybersecurity and networking solutions through consulting, managed, and professional services for organizations. | Computer and Network Security | 🇫🇷 Boulogne-Billancourt | 887 | 2004 |
| 28 | [Exxelia](https://www.tamtam.ai/c/exxelia) (exxelia.com)<br>Designing and manufacturing high-reliability passive components and precision subsystems for demanding markets like aviation, defense, and medical, meeting complex specifications. | Aviation and Aerospace Component Manufacturing | 🇫🇷 Boulogne-Billancourt | 856 | 2009 |
| 29 | [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 |  |
| 30 | [Excelya](https://www.tamtam.ai/c/excelya) (excelya.com)<br>Provides comprehensive CRO, FSP, and Resourcing solutions to Biotech, Pharma, and Medical Device organizations, offering bespoke trial solutions across various therapeutic areas. | Pharmaceutical Manufacturing | 🇫🇷 Boulogne-Billancourt | 701 | 2014 |

## 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.

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Source: https://www.tamtam.ai/l/multinational-companies-boulogne-billancourt