The professional services sector in Lyon features a mix of well-established firms and younger companies, predominantly focused on human resources and accounting. Adéquat Interim & Recrutement, founded in 1987, provides temporary work and recruitment solutions. RAS Intérim, established in 1969, offers 24/7 staffing services. In Extenso, a 1991 firm, is a French accounting leader. STS, founded in 2010, specializes in technical advisory for solar and storage components.
A notable pattern among these Lyon-based professional services firms is the strong presence of human resources and staffing companies. Several companies, including Adéquat Interim & Recrutement, RAS Intérim, and Groupe LIP Interim et Recrutement, are headquartered in Lyon and specialize in temporary staffing and recruitment. This concentration suggests a significant local ecosystem for workforce solutions.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
In Extensoinextenso.fr
French accounting leader with broad services for businesses. Offers accounting, administrative, legal, tax, social, M&A, tourism, wealth, innovation, and legal advice. |
3,533 | |||
| 2 |
Adéquat Interim & Recrutementlejobadequat.com
Provides comprehensive temporary work and recruitment solutions, including permanent contracts and associated services, to various organizations across all sectors in France. |
3,167 | |||
| 3 |
RAS Intérimras-interim.fr
Founded in 1969, this French company provides 24/7 staffing solutions nationwide with a highly responsive, flexible, and reliable team for specialized and urgent recruitment needs |
3,048 | |||
| 4 |
entreprise individuellegrandclement.fr
This company specializes in web development, SEO, online advertising campaigns, VBNet development, e-commerce, Access development, training, and consulting for SMEs |
2,587 | |||
| 5 | 2,160 | ||||
| 6 |
STSsts-certified.com
Technical advisory and conformity assessment services for solar and storage components, including manufacturing audits and inspections for global renewable energy project developers. |
1,900 | |||
| 7 | 1,877 | ||||
| 8 | 1,652 | ||||
| 9 |
CTCctcgroupe.com
CTC offers cross-disciplinary solutions for the leather, footwear, and textile industries, focusing on ethical practices, cost savings, waste reduction, and performance improvement worldwide |
1,622 | |||
| 10 |
Groupe LIP Interim et Recrutementgroupelip.com
Independent group specializing in temporary staffing and recruitment across various sectors, matching skilled professionals with appropriate positions and supporting career paths. |
1,454 | |||
| 11 |
Domino RHdomino-rh.com
Established in 1999, this group offers temporary assignments, recruitment, training, HR consulting, and management services with a national network across France and expanding internationally |
1,144 | |||
| 12 |
Soleryssolerys.fr
Solerys is a leading expert in career transition, professional reclassification, and skills assessments with a network of 450 consultants nationwide |
826 | |||
| 13 |
Valorityvalority.com
Specialized in real estate, credit, property management, and financial investments, providing comprehensive support throughout the investment process. |
721 | |||
| 14 |
Groupe Adéquatgroupeadequat.com
Private family business providing staffing and recruitment services across multiple sectors and countries, supporting thousands into employment annually. |
668 | |||
| 15 |
Cabinet Merlincabinet-merlin.fr
Consulting and engineering services for water production, wastewater treatment, waste management, energy production, urban planning, and mobility for local authorities and industries. |
589 | |||
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 | 565 | ||||
| 17 |
CONSULTYSconsultys.com
Provides engineering, production, quality, R&D, and regulatory affairs consulting services to the bio industry for drug development projects. |
550 | |||
| 18 |
communecommune.archi
Specializing in architecture, urban planning, and heritage preservation, the company offers comprehensive services in designing, developing, and conserving built environments |
539 | |||
| 19 |
Endrixendrix.com
Team of 200 professionals supporting over 5000 clients with ISO 9001 certified quality, specialized technology, and expert business performance services. |
515 | |||
| 20 |
implidimplid.com
With over 40 years of experience, our team specializes in helping businesses improve organization, regulatory compliance, and system performance across various regions |
512 | |||
| 21 |
Novasepnovasep.com
Leading provider of molecule production & purification services for life science industries Specializing in small molecule APIs, natural products, purification equipment, and global R&D capabilities |
496 | |||
| 22 |
Dougs Comptadougs.fr
Revolutionizing small business accounting through an innovative web application, providing tools and human support for entrepreneurs to focus on growth. |
420 | |||
| 23 |
Indépendantesarah-beaulieu.com
Crafting narratives for diverse media: video games, film, virtual reality, and stage. World-building, script doctoring, and directing actors for interactive and linear storytelling. |
410 | |||
| 24 |
Percall Grouppercallgroup.com
French IT engineering services company, specializing in CAD, PLM, and IoT software integration for major high-tech industries, a PTC partner. |
347 | |||
| 25 |
Groupe FUTURMAPfuturmap.com
An innovative company specializing in processing and utilizing geospatial data for LiDAR, photogrammetry, BIM, GIS, web/mobile development, and infographics With 500 employees and two operational sites |
333 | |||
| 26 |
GUARANÍguarani.fr
Provides digital services to over 150 partner companies with expertise, openness, support, and responsibility, fostering individual growth in a healthy environment. |
303 | |||
| 27 |
ERAS Engineeringeras.com
Providing high value-added engineering services for medium scale projects in chemicals, food, pharmaceuticals, cosmetics, and energy sectors. |
292 | |||
| 28 |
Alixio Mobilitéalixiomobilite.fr
Specializes in professional mobility and career transition support, offering tailored solutions respecting organizational culture and human challenges. |
279 | |||
| 29 |
ABGi Franceabgi-france.com
Support clients in structuring, financing, and executing research, development, innovation, operational optimization, technology adoption, and sustainable transformation projects internationally. |
261 | |||
| 30 |
APLUSAaplusaresearch.com
A global healthcare market research consultancy specializing in brand performance monitoring, patient journey assessments, and real-world data insights for informed business decisions |
246 | |||
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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 Lyon
- The largest companies in Lyon 2,679
- Multinational companies in Lyon 283
- SaaS companies in Lyon 211
- Companies with in-house R&D in Lyon 192
- Software Development companies in Lyon 178
- IT services companies in Lyon 171
- Consulting firms in Lyon 163
- IT Services and IT Consulting companies in Lyon 160
- Retail chains in Lyon 154
- Business Consulting and Services companies in Lyon 141
- Law Practice companies in Lyon 140
- Higher Education companies in Lyon 115
- Subscription businesses in Lyon 112
- Education providers in Lyon 107
- Financial services firms in Lyon 105
- Real Estate companies in Lyon 104
- Advertising Services companies in Lyon 99
- Recruitment and staffing agencies in Lyon 88
- Marketing and communications agencies in Lyon 78
- Companies with a mobile app in Lyon 78
- Events Services companies in Lyon 72
- Professional Training and Coaching companies in Lyon 72
- Legal Services companies in Lyon 70
- Manufacturers in Lyon 69
The same list elsewhere in France
- Professional services firms in France 6,611
- Professional services firms in Île-de-France 3,377
- Professional services firms in Auvergne-Rhône-Alpes 711
- Professional services firms in the Hauts-de-Seine department 629
- Professional services firms in Provence-Alpes-Côte d'Azur 433
- Professional services firms in the Rhône 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-Rhône 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 Paris 2,241
- Professional services firms in Toulouse 139
- Professional services firms in Marseille 123
- Professional services firms in Boulogne-Billancourt 102