# The 30 largest law firms in the Rh么ne department
Tamtam tracks 59 law firms headquartered in the Rh么ne department. This list ranks the 30 largest by number of employees on LinkedIn, led by In Extenso, Delsol Avocats and FIDUCIAL Sofiral Avocats. Their median headcount is 26. Half of them were founded in 1980 or later. The most common headquarters are Lyon (26).
This selection of companies in the Rh么ne department is primarily composed of law firms and legal service providers. While most are mid-sized firms, the list is headed by In Extenso, a large accounting leader. Other notable firms include Delsol Avocats, which offers legal assistance in business, tax, and employment law, and FIDUCIAL Sofiral Avocats, providing counsel to small businesses. LAMY LEXEL focuses on pragmatic legal advice for company growth.
A clear pattern is the concentration of these firms in Lyon, which serves as the headquarters for almost all the listed companies. The founding dates range broadly, from established firms like RATHEAUX, founded in 1920, to newer entities such as BREMENS | AVOCATS, established in 2019, and AGRUME, a software development firm co-founded by lawyers and engineers.
馃嚝馃嚪 Rh么ne 路 30 companies 路 Updated Nov 13, 2026
| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [In Extenso](https://www.tamtam.ai/c/in-extenso) (inextenso.fr)
French accounting leader with broad services for businesses. Offers accounting, administrative, legal, tax, social, M&A, tourism, wealth, innovation, and legal advice. | Accounting | 馃嚝馃嚪 Lyon | 3,533 | 1991 |
| 2 | [Delsol Avocats](https://www.tamtam.ai/c/delsol-avocats) (delsolavocats.com)
Providing legal assistance in business, tax, and employment law for industrial companies, financial institutions, non-profit organizations, and local authorities across France. | Law Practice | 馃嚝馃嚪 Lyon | 245 | 1973 |
| 3 | [FIDUCIAL Sofiral Avocats](https://www.tamtam.ai/c/fiducial-sofiral-avocats) (fiducial-sofiral-avocats.fr)
French inter-bar law firm providing legal counsel to small businesses, artisans, shopkeepers, and professionals through a network of nationwide local offices. | Law Practice | 馃嚝馃嚪 Lyon | 226 | 1970 |
| 4 | [LAMY LEXEL](https://www.tamtam.ai/c/lamy-lexel) (lamy-lexel.com)
Provides pragmatic, innovative legal advice and services to support company growth, strategy, risk management, and international development. | Law Practice | 馃嚝馃嚪 Lyon | 133 | 1998 |
| 5 | [Adaltys Avocats](https://www.tamtam.ai/c/adaltys-avocats) (adaltys.com)
Providing legal advice, drafting contracts, representing clients in disputes, and handling arbitration across public, private, and international sectors. | Law Practice | 馃嚝馃嚪 Lyon | 126 | 1969 |
| 6 | [KELTEN AVOCATS](https://www.tamtam.ai/c/kelten-avocats) (kelten.fr)
A business law firm with over 60 specialists providing collaborative advice and defense in various areas to help clients achieve growth and international success | Law Practice | 馃嚝馃嚪 Lyon | 93 | |
| 7 | [FBL Avocats](https://www.tamtam.ai/c/fbl-avocats) (fbl-avocats.com)
Providing multidisciplinary legal advice and litigation assistance to companies and managers, operating across borders with global network membership. | Law Practice | 馃嚝馃嚪 Lyon | 92 | 1965 |
| 8 | [OFFICE NOTARIAL DE L'EUROPE](https://www.tamtam.ai/c/office-notarial-de-l-europe) (officenotarialdeleurope.com)
A multidisciplinary notary office in Lyon, specializing in legal and tax services for individuals, businesses, and organizations, with a focus on real estate, family, and international law | Legal Services | 馃嚝馃嚪 Lyon | 49 | |
| 9 | [Cabinet Requet Chabanel](https://www.tamtam.ai/c/cabinet-requet-chabanel) (requetchabanel.com)
Specialized law firm in corporate, tax & employment law With a multidisciplinary team, they offer professional services to companies and their executives | Law Practice | 馃嚝馃嚪 Lyon | 47 | |
| 10 | [BREMENS \| AVOCATS](https://www.tamtam.ai/c/bremens-avocats) (bremens-avocats.com)
A firm specializing in business law services, providing legal guidance and support to clients in various industries | Law Practice | 馃嚝馃嚪 Lyon | 43 | 2019 |
| 11 | [RATHEAUX](https://www.tamtam.ai/c/ratheaux) (avocat-lyon-ratheaux.com)
Established in 1920, this law firm specializes in business law disciplines such as corporate, tax, contract, social, economic, and intellectual property law, serving national and international clients | Legal Services | 馃嚝馃嚪 Lyon | 38 | 1920 |
| 12 | [Laurent et Charras](https://www.tamtam.ai/c/laurent-et-charras) (laurentcharras.com)
Specializes in intellectual property law, providing legal advice and protection for patents, trademarks, copyrights, and related rights. | Law Practice | 馃嚝馃嚪 Dardilly | 36 | 1920 |
| 13 | [implid Legal](https://www.tamtam.ai/c/implid-legal) (implid.com)
An innovative group providing expertise in accounting, law, and consulting to help businesses grow and navigate legal matters for various entities | Law Practice | 馃嚝馃嚪 Lyon | 34 | 1973 |
| 14 | [AGRUME](https://www.tamtam.ai/c/agrume) (agrume.fr)
Software co-developed by lawyers and engineers, for preparing and monitoring HR procedures, considering applicable legal and conventional provisions. | Software Development | 馃嚝馃嚪 Lyon | 30 | 2016 |
| 15 | [Legi Avocats](https://www.tamtam.ai/c/legi-avocats) (legiavocats.eu)
A team of 28 business attorneys in Lyon and Macon, providing tailored legal advice and litigation support to entrepreneurs and companies for over 32 years | Legal Services | 馃嚝馃嚪 Lyon | 26 | 1986 |
| 16 | [Stemm Avocats](https://www.tamtam.ai/c/stemm-avocats) (stemm-avocats.fr)
A multidisciplinary law firm serving businesses and entrepreneurs, providing solutions to recurrent issues faced by executives and business partners | Law Practice | 馃嚝馃嚪 Lyon | 24 | |
| 17 | [Ressource Avocats](https://www.tamtam.ai/c/ressource-avocats) (ressource-avocats.com)
A French business law firm offering comprehensive services in corporate law, employment law, taxation, contracts, litigation, innovation, and restructuring with a focus on proximity, creativity, and simplicity | Law Practice | 馃嚝馃嚪 Lyon | 24 | 2019 |
| 18 | [1629 NOTAIRES](https://www.tamtam.ai/c/1629-notaires) (1629notaires.com)
1629 Notaires is a company that specializes in providing notarial services, legal advice, and assistance with real estate transactions | Legal Services | 馃嚝馃嚪 Lyon | 23 | 1629 |
| 19 | [Itin茅raires Avocats](https://www.tamtam.ai/c/itineraires-avocats) (itineraires-avocats.fr)
Itin茅raires Avocats specializes in public law and local government law, offering expert legal services to local public sector entities and individuals Based in Lyon and Narbonne | Law Practice | 馃嚝馃嚪 Lyon | 23 | 2009 |
| 20 | [Cabinet ABDOU Associ茅s](https://www.tamtam.ai/c/cabinet-abdou-associes) (cabinet-abdou.fr)
Specializing in legal procedures against employers, the company offers a unique counsel combining expertise in social security, labor, and criminal labor law for comprehensive defense strategies | Law Practice | 馃嚝馃嚪 Lyon | 18 | |
| 21 | [ACO Avocats](https://www.tamtam.ai/c/aco-avocats) (aco-avocats.com)
A team of 15 professionals specializing in various legal areas provide counsel and defense to businesses of all sizes | Law Practice | 馃嚝馃嚪 Lyon | 17 | 2003 |
| 22 | [Les Notaires du Rh么ne](https://www.tamtam.ai/c/les-notaires-du-rhone) (cin-lyon.notaires.fr)
An order of professional notaries in Rh么ne, France, with 520 notaries and 1487 staff, providing legal services in various fields | Legal Services | 馃嚝馃嚪 Lyon | 16 | 1945 |
| 23 | [Archim猫de Avocats & Associ茅s](https://www.tamtam.ai/c/archimede-avocats-and-associes) (archimede-avocats.fr)
Archim猫de Avocats & Associ茅s provides tailored, high-quality legal services in real estate and tax law, assisting individuals, businesses, and public entities with investment strategies | Law Practice | 馃嚝馃嚪 Lyon | 16 | 2018 |
| 24 | [SELARL LEVY ROCHE SARDA](https://www.tamtam.ai/c/selarl-levy-roche-sarda) (levy-roche-sarda.fr)
A law firm providing comprehensive legal services for private clients and businesses, specializing in family law, banking law, and corporate law for over 50 years | Law Practice | 馃嚝馃嚪 Lyon | 16 | 1980 |
| 25 | [Renaud Avocats - Lexicube Social](https://www.tamtam.ai/c/renaud-avocats-lexicube-social) (renaud-avocats.com)
Law firm specializing in advising businesses on HR and social risks, providing legal support for social and business disputes, and assisting with individual and collective social issues | Legal Services | 馃嚝馃嚪 Villeurbanne | 15 | 2006 |
| 26 | [PERICLES-AVOCATS](https://www.tamtam.ai/c/pericles-avocats) (pericles-avocats.fr)
Specialized business law firm supporting companies and investors with strategic projects including creation, growth, mergers, funding, audits, governance, and development strategy | Law Practice | 馃嚝馃嚪 Lyon | 14 | 2012 |
| 27 | [Actanot](https://www.tamtam.ai/c/actanot) (actanot.notaires.fr)
Actanot is a notary firm with 6 notaries and 21 staff in 4 areas: Family, Real Estate, Promotion, Business Law & Estate Management Specializing in various legal services | Legal Services | 馃嚝馃嚪 S茅r茅zin-du-Rh么ne | 13 | 1619 |
| 28 | [VEDESI](https://www.tamtam.ai/c/vedesi) (vedesi.fr)
Legal services provider to public and private organizations, delivering tailored solutions with a focus on clarity and education to achieve specific goals | Law Practice | 馃嚝馃嚪 Lyon | 13 | |
| 29 | [Office des Lumi猫res](https://www.tamtam.ai/c/office-des-lumieres) (officedeslumieres.com)
An established notary office in Lyon offering legal services in real estate, family law, business law, wealth management, and more | Legal Services | 馃嚝馃嚪 Lyon | 13 | 1780 |
| 30 | [KAEUFLING NOTAIRES](https://www.tamtam.ai/c/kaeufling-notaires) (kaeufling.notaires.fr)
An office notarial providing legal support to individuals and businesses across various sectors of the law | Legal Services | 馃嚝馃嚪 Saint-Priest | 13 | |
## 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 13, 2026.
## More company lists in the Rh么ne department
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## The same list elsewhere in France
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- [Law firms in the Bouches-du-Rh么ne department](https://www.tamtam.ai/l/law-firms-bouches-du-rhone) (33)
- [Law firms in Hauts-de-France](https://www.tamtam.ai/l/law-firms-hauts-de-france) (30)
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- [Law firms in Lyon](https://www.tamtam.ai/l/law-firms-lyon) (51)
## The same list elsewhere
- [Law firms in the world](https://www.tamtam.ai/l/law-firms-in-the-world) (3,223)
- [Law firms in Europe](https://www.tamtam.ai/l/law-firms-in-europe) (1,618)
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Source: https://www.tamtam.ai/l/law-firms-rhone