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.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Sodexo Live!sodexolive.com
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. |
412,000 | |||
| 2 | 38,710 | ||||
| 3 |
Astekastekgroup.fr
Supports clients with high-value service, deep technical expertise across technology, operations, and engineering, focusing on sustainable digital transformation with humans at the core. |
6,035 | |||
| 4 |
FDJ UNITEDgroupefdj.com
European champion in gaming and betting, operating a diverse portfolio of iconic brands for 33 million players across 15 countries. |
5,237 | |||
| 5 |
GE Renewable Energyge.com
Engineers energy products and digital services using wind, solar, and hydro resources for global customers, delivering affordable, reliable, and sustainable power. |
4,994 | |||
| 6 |
GE Grid Solutionsgevernova.com
Provides utilities and industries with equipment, systems, services for reliable power delivery from generation to consumers, focusing on renewable integration and energy transition acceleration. |
4,934 | |||
| 7 |
Synergie Francesynergie.fr
French leader in HR services: recruitment, training, and HR consulting Providing solutions in various sectors, emphasizing proximity, performance, and diversity |
4,804 | |||
| 8 |
BNP Paribas Real Estatebnpparibas.com
Offers comprehensive real estate services including property development, transactions, consulting, valuation, and property management across Europe, the Middle East, and Asia. |
4,173 | |||
| 9 |
Cegedimcegedim.com
Technology and services for digital data flow management in healthcare ecosystems and B2B, plus business software publishing for healthcare and insurance professionals. |
4,103 | |||
| 10 |
Delpharmdelpharm.com
A leading Contract Development and Manufacturing Organization (CDMO) with 18 plants worldwide producing various dosage forms and serving demanding customers for 30 years |
3,937 | |||
| 11 |
Antalisantalis.com
Distributes papers, industrial packaging, and visual communication media globally, offering products and services through e-commerce solutions to businesses. |
3,376 | |||
| 12 | 3,016 | ||||
| 13 |
CFAOcfaogroup.com
Contributes to growth and industrialisation in Africa, providing mobility, healthcare, consumer goods, infrastructure and energy solutions to the continent's emerging middle class. |
2,761 | |||
| 14 |
Acolad groupacolad.com
Global content and language solutions provider; empowers organizations to localize everywhere; combines human creativity and technology; top 10 language services leader. |
2,324 | |||
| 15 |
Apsideapside.com
Provides consulting, engineering in Information Systems, Technical and Scientific Computing, Automotive and Financial Engineering, for large French and European groups. |
2,300 | |||
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| 16 |
Sonepar Francesoneparfrance.fr
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. |
2,284 | |||
| 17 | 2,075 | ||||
| 18 |
Berger-Levraultberger-levrault.com
Provides software solutions for public sector, healthcare, education, and industry, focusing on HR, financial management, and maintenance management for global customers. |
2,064 | |||
| 19 |
Davidson consultingdavidson.fr
A management consulting and technology company with over 2,000 employees, expanding internationally with a focus on employee well-being and creativity |
1,843 | |||
| 20 |
asmodeeasmodee.com
Entertainment leader, specialized in tabletop games, offers an extensive catalog of games, creating opportunities for players globally to connect and engage. |
1,823 | |||
| 21 |
Hilti Francehilti.fr
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. |
1,675 | |||
| 22 |
Yoplaityoplait.fr
Production and marketing of fresh dairy products including yogurt varieties, with global presence and recognized brand signature. |
1,222 | |||
| 23 |
Nuxe Groupnuxe.com
French cosmetics brand producing effective, ultra-sensorial face and body care. They offer certified organic skincare, expert anti-aging products, and spa services. |
1,087 | |||
| 24 |
Groupe M茅canique D茅coupage / GMDgroupe-gmd.com
Specializes in metal blanking-stamping, plastic injection molding, thermoforming, and aluminum smelting, providing reliable industrial subcontracting services. |
1,080 | |||
| 25 |
Rentokil Initial Francerentokil-initial.com
Pest control, hygiene solutions, cleaning, catering, interior landscaping, package delivery, and integrated facilities services for diverse customers. |
979 | |||
| 26 |
Viverisviveris.fr
consulting and engineering company for information systems, technical computing, and embedded systems, providing support from definition to integration. |
899 | |||
| 27 |
Nomios Groupnomios.com
Designs, secures, and manages digital infrastructures, developing innovative cybersecurity and networking solutions through consulting, managed, and professional services for organizations. |
887 | |||
| 28 |
Exxeliaexxelia.com
Designing and manufacturing high-reliability passive components and precision subsystems for demanding markets like aviation, defense, and medical, meeting complex specifications. |
856 | |||
| 29 |
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 | |||
| 30 |
Excelyaexcelya.com
Provides comprehensive CRO, FSP, and Resourcing solutions to Biotech, Pharma, and Medical Device organizations, offering bespoke trial solutions across various therapeutic areas. |
701 | |||
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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.
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