These Parisian firms are primarily large professional services groups, specializing in IT, engineering, and various consulting domains. Capgemini, with over 340,000 employees, delivers end-to-end services in strategy, technology, and operations, while Bureau Veritas provides testing, inspection, and certification services. Publicis Groupe helps clients transform their marketing and digital businesses, and Technip Energies focuses on energy engineering and technology.
The data shows a strong concentration of headquarters in Paris for these large service providers. A significant number of these companies, such as Bureau Veritas (founded 1828), ADMR (founded 1945), and Cerfrance (founded 1957), have long operational histories, indicating established players in their respective professional service sectors.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Capgeminicapgemini.com
Imagine future organizations, making it real with AI, technology, and people, delivering end-to-end services and solutions across strategy, technology, design, engineering and business operations |
342,989 | |||
| 2 |
Bureau Veritasbureauveritas.com
A global leader in testing, inspection, and certification services, fostering confidence through expertise and independence while addressing crucial societal and environmental challenges |
55,072 | |||
| 3 |
Sopra Steriasoprasteria.com
Offers consulting, digital services, and solutions, assisting large companies and organizations with digital transformation, improving competitiveness through technology and collaboration. |
47,609 | |||
| 4 |
Capgemini Engineeringcapgemini.com
Engineering R&D services, combining broad industry knowledge and cutting-edge digital and software technologies to accelerate clients' journey towards Intelligent Industry. |
44,836 | |||
| 5 |
Publicis Groupepublicisgroupe.com
Helps clients transform their marketing and digital businesses, providing expertise in communications, media, data, and technology across 100+ countries. |
41,020 | |||
| 6 |
Webhelpwebhelp.com
The company specializes in creating innovative customer journeys using data insights, AI, and human talent to drive growth for brands worldwide |
27,162 | |||
| 7 |
Technip Energiesten.com
Leading energy engineering & technology company focused on LNG, hydrogen, ethylene, sustainable chemistry, and CO2 management Committed to accelerating the energy transition globally |
18,645 | |||
| 8 |
Capgemini Inventcapgemini.com
Digital innovation, consulting, and transformation services combining strategy, technology, data science, and creative design to help businesses envision and build the future |
17,000 | |||
| 9 | 11,291 | ||||
| 10 |
SYSTRAsystra.com
Leading engineering and consultancy group specializing in public transport and mobility solutions, connecting people and regions through transport infrastructure development. |
10,162 | |||
| 11 |
Cerfrancecerfrance.fr
Provides comprehensive accounting and consulting services across France. Supports businesses and individuals in various sectors with management, administrative, and legal aspects. |
5,502 | |||
| 12 |
Groupe SIIsii-group.com
Engineering and digital services company providing innovative solutions to large groups across various sectors, developing new technologies and evolving information systems. |
5,287 | |||
| 13 |
CRIT Francecrit-job.com
A leading HR and recruitment agency with over 500 offices in France, Europe, and the US, providing staffing solutions to various industries worldwide |
5,179 | |||
| 14 |
SERIS Grouplinktr.ee
A family-owned security company established in 1958, offering a wide range of safety solutions globally, with a focus on human values and professional teams |
5,048 | |||
| 15 | 4,659 | ||||
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 |
ATALIAN PROPRETE
A management consulting company located in Paris, France, specializing in facility management services and solutions for various industries and organizations |
4,000 | |||
| 17 |
Trescaltrescal.com
Provides precision calibration services, validation, qualification, repair, and metrology training across industries, geographies, and instrument types globally. |
3,987 | |||
| 18 |
Samsic Facilitysamsic-facility.fr
Offers integrated business services: cleaning, security, maintenance, reception, landscaping, and logistics to improve working environments and occupant well-being across diverse sectors. |
3,978 | |||
| 19 |
Onepointgroupeonepoint.com
Experts in data, design, and platforms, transforming companies and public administrations through strategic vision and operational implementation with cutting-edge technology and business skills |
3,835 | |||
| 20 |
Publicis Re:Sourcespublicisresources.com
Provides technology solutions and business services including finance, accounting, legal, and procurement for agencies, enabling innovation and client transformation. |
3,796 | |||
| 21 |
Siasia-partners.com
Next-generation global consulting group specializing in strategy, AI, and management, helping clients with transformation through data science and advanced GenAI solutions. |
3,646 | |||
| 22 |
ADENES Franceadenes.eu
Providing global, multi-specialist risk management and expert services before, during, and after incidents for businesses and individuals. |
3,500 | |||
| 23 |
ARMONIAarmonia.team
Designs, implements custom solutions for harmonious, human, effective workplaces; offers facility management, occupant services, maintenance, HR, reception, security, operated offices, cleaning, catering. |
3,407 | |||
| 24 |
Armatisarmatis.com
Specializing in outsourced Customer Relations since 1989, this French company has 11 sites in France and internationally, with 9000 experts prioritizing customer satisfaction |
3,118 | |||
| 25 |
Magellanmagellangroup.eu
Magellan Partners helps businesses succeed in their digital transformation by combining business expertise, technology knowledge, and digital creativity to open new digital paths |
2,794 | |||
| 26 |
Artefactartefact.com
Consulting company focused on data and AI adoption, specializing in data transformation and marketing to drive business results across the value chain for global brands. |
2,572 | |||
| 27 |
Freelance.comfreelance.com
Freelancecom connects organizations with top freelance experts and specialized digital SMEs to facilitate global transformation, bridging the gap between internal and external talents |
2,467 | |||
| 28 |
GROUPE CITY ONEcityone.fr
Provides reception and customer services for businesses, events, airports, and VIP lounges, focusing on operational expertise and customer experience across France and Europe. |
2,415 | |||
| 29 |
Diot-Siacidiot-siaci.com
A leading multinational insurance brokerage group offering tailored solutions for businesses and professionals in Europe, Asia, Middle East, and Africa |
2,244 | |||
| 30 |
Free lancebefreetalent.fr
Connecting freelance talent with IT service companies, large corporations, startups, and SMEs for big data, web development, and digital strategy roles. |
2,190 | |||
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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 11, 2026.
More company lists in Paris
- The largest companies in Paris 22,790
- Multinational companies in Paris 3,531
- SaaS companies in Paris 2,218
- IT Services and IT Consulting companies in Paris 1,547
- Consulting firms in Paris 1,532
- Retail chains in Paris 1,491
- Software Development companies in Paris 1,413
- IT services companies in Paris 1,386
- Financial services firms in Paris 1,361
- Business Consulting and Services companies in Paris 1,360
- Law Practice companies in Paris 1,289
- Companies with in-house R&D in Paris 1,249
- Subscription businesses in Paris 1,004
- Financial Services companies in Paris 999
- Advertising Services companies in Paris 832
- Marketing and communications agencies in Paris 812
- Education providers in Paris 812
- Technology, Information and Internet companies in Paris 807
- Companies with a mobile app in Paris 764
- AI companies in Paris 743
- Recruitment and staffing agencies in Paris 727
- Luxury brands in Paris 713
- Real Estate companies in Paris 627
- AI-native companies in Paris 619
The same list elsewhere in France
- Professional services firms in France 6,611
- Professional services firms in 脦le-de-France 3,377
- Professional services firms in Auvergne-Rh么ne-Alpes 711
- Professional services firms in the Hauts-de-Seine department 629
- Professional services firms in Provence-Alpes-C么te d'Azur 433
- Professional services firms in the Rh么ne department 400
- Professional services firms in Occitanie 399
- Professional services firms in Grand Est 316
- Professional services firms in Nouvelle-Aquitaine 308
- Professional services firms in Hauts-de-France 260
- Professional services firms in Pays de la Loire 254
- Professional services firms in the Bouches-du-Rh么ne department 249
- Professional services firms in the Haute-Garonne department 208
- Professional services firms in the Nord department 178
- Professional services firms in Brittany 167
- Professional services firms in the Loire-Atlantique department 158
- Professional services firms in the Gironde department 151
- Professional services firms in Normandy 114
- Professional services firms in the Yvelines department 108
- Professional services firms in the Ille-et-Vilaine department 94
- Professional services firms in Lyon 265
- Professional services firms in Toulouse 139
- Professional services firms in Marseille 123
- Professional services firms in Boulogne-Billancourt 102