Company lists · Data refreshed September 2026

Top 25 Startup law firms based in France

RevenueBase identified 124 startup law firms headquartered in France as of September 2026 and tracks 537 professional contacts across them, including 224 with verified work emails and 17 with mobile numbers. Paris is the largest hub.

This list covers startup law firms headquartered in France, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 6, 2026 86% judged on-target in blind review
124Companies
537Contacts tracked
224Verified emails
17Mobile numbers
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The 25 largest startup law firms based in France

Ranked by team size
Top 25 of 124 startup law firms based in France, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to startup law firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceLa Chapelle Sur Erdre, FranceHQ checked Sep 6, 202611-5047 contacts →

“GUEGUEN AVOCATS is a legal services company based out of 100 RUE DU LEINSTER, La Chapelle Sur Erdre, Pays de la Loire, France.”

Source: company website · checked Sep 6, 2026
2Indirect evidenceSophia-antipolis, FranceHQ checked Sep 6, 202611-5019 contacts →

“EY VENTURY Avocats accompagne les dirigeants d’entreprises innovantes dans la création et le développement de leur entreprise, en France et à l’international.”

Source: company website · checked Sep 6, 2026
3Indirect evidenceMarseille, FranceHQ checked Sep 6, 202611-5019 contacts →

“AKHEOS est une société d'avocats spécialisés en droit des affaires qui accompagne les entreprises et groupes de sociétés dans leur stratégie de développement : structuration /…”

Source: company website · checked Sep 6, 2026
4Indirect evidenceLyon, FranceHQ checked Sep 6, 202611-5019 contacts →

“Le Cabinet LEGI AVOCATS est présent sur la région Lyonnaise et Mâconnaise depuis plus de 32 ans.”

Source: company website · checked Sep 6, 2026
5Indirect evidenceParis, FranceHQ checked Sep 6, 20261-1017 contacts →

“Cabinet d'avocats innovant au service des entrepreneurs, des dirigeants et de leurs entreprises.”

Source: company website · checked Sep 6, 2026
6Partial evidenceParis, FranceHQ checked Sep 6, 20261-1015 contacts →

“HASHTAG Avocats est une startup du droit en ce sens qu’elle évolue dans un écosystème startup et qu’elle a su adapter ses méthodes de travail comme de facturation aux startups…”

Source: company website · checked Sep 6, 2026
7Indirect evidenceMontpellier, FranceHQ checked Sep 6, 20261-1014 contacts →

“Lasmoles Avocats, votre cabinet d'avocats spécialisé en droit des affaires à Montpellier, vous offre une assistance complète et sur mesure à chaque étape du développement de votre…”

Source: company website · checked Sep 6, 2026
8Indirect evidenceLyon, FranceHQ checked Sep 6, 202611-5012 contacts →

“KLYDE AVOCATS est un cabinet d'entrepreneurs, créé en janvier 2023 par Ada COSTANTINI, Teddy DORIER, John GARDON, Matthieu GIBOIRE et Annabelle ICHÉ.”

Source: company website · checked Sep 6, 2026
9Indirect evidenceLille, FranceHQ checked Sep 6, 202611-5011 contacts →

“QUINTUOR, cabinet de droit des affaires, expert dans le conseil, l’accompagnement et la défense des intérêts des entreprises.”

Source: company website · checked Sep 6, 2026
10Indirect evidenceParis, FranceHQ checked Sep 6, 20261-1011 contacts →

“BONNIER SAINT-FELIX est un cabinet d'avocats d'affaires parisien.”

Source: company website · checked Sep 6, 2026
11Indirect evidenceParis, FranceHQ checked Sep 6, 202611-5010 contacts →

“France, the second largest tech market in Europe, is consistently home to over a fifth of the 100 most promising scaleups in Europe.”

Source: company website · checked Sep 6, 2026
12Indirect evidenceParis, FranceHQ checked Sep 6, 20261-109 contacts →

“ENTHEMIS est un cabinet d’avocats dédié au droit des affaires où l’entreprise est placée au centre des préoccupations.”

Source: company website · checked Sep 6, 2026
13Partial evidenceParis, FranceHQ checked Sep 6, 20261-109 contacts →

“SMASH Legal,cabinet d'avocats et de juristes à temps partagé pour startup et PME.”

Source: company website · checked Sep 6, 2026
14Partial evidenceParis, FranceHQ checked Sep 6, 20261-109 contacts →

“Notre cabinet a été fondé par Jérôme Giusti, cofondateur et associé pendant 10 ans de 11.100.34 Avocats Associés, précurseur en 2007 dans l’accompagnement des start-up et…”

Source: company website · checked Sep 6, 2026
15Indirect evidenceParis, FranceHQ checked Sep 6, 20261-108 contacts →

“Fondé en 2011, forts de nos expériences respectives de plus de 20 ans en droit des affaires, le cabinet Nexo défend une clientèle diversifiée de grandes entreprises, françaises et…”

Source: company website · checked Sep 6, 2026
16Indirect evidenceToulouse, FranceHQ checked Sep 6, 20261-108 contacts →

“Créé en 2023 par trois avocats expérimentés et une clerc d'avocats, le Cabinet ARCAMES AVOCATS intervient dans toutes les branches du droit public et du droit privé de…”

Source: company website · checked Sep 6, 2026
17Partial evidenceParis, FranceHQ checked Sep 6, 20261-108 contacts →

“Business Law firm”

Source: company website · checked Sep 6, 2026
18Partial evidenceMontpellier, FranceHQ checked Sep 6, 20261-108 contacts →

“Our firm offers over 40 years of experience in intellectual property law, new technology law and communication law.”

Source: company website · checked Sep 6, 2026
19Indirect evidenceParis, FranceHQ checked Sep 6, 20261-107 contacts →

“En droit, le negotium désigne la force juridique d’un acte, sa capacité à produire des effets concrets dans la vie des affaires.”

Source: company website · checked Sep 6, 2026
20Partial evidenceParis, FranceHQ checked Sep 6, 20261-107 contacts →

Law firm for tech companies Smart lawyers for smart entrepreneurs”

Source: company website · checked Sep 6, 2026
21Indirect evidenceParis, FranceHQ checked Sep 6, 20261-106 contacts →

“HIRO Avocats est né de la volonté d’offrir aux acteurs de la création et de l’innovation une assistance personnalisée au fait des évolutions technologiques et du foisonnement des…”

Source: company website · checked Sep 6, 2026
22Indirect evidenceParis, FranceHQ checked Sep 6, 202611-506 contacts →

“Le cabinet CARDIAN AVOCATS est un cabinet d'avocats situé à Paris dans le 8 ème arrondissement.”

Source: company website · checked Sep 6, 2026
23Indirect evidenceRennes, FranceHQ checked Sep 6, 20261-106 contacts →

“Le Cabinet AFA Avocats intervient en Droit des affaires.”

Source: company website · checked Sep 6, 2026
24Indirect evidenceParis, FranceHQ checked Sep 6, 202611-505 contacts →

“La fonction de l’avocat ne se limite pas à défendre ses clients en cas de procès.”

Source: company website · checked Sep 6, 2026
25Indirect evidenceBordeaux, FranceHQ checked Sep 6, 202611-505 contacts →

“Une entreprise du droit, au service des entreprises.”

Source: company website · checked Sep 6, 2026

Showing 25 of 124 startup law firms based in France

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Startup law firms based in France at a glance

As of Sep 6, 2026
41.7%Verified-email coverage
3.2%Mobile-number coverage
4.3Average contacts per company
1-10Median size (employees)
47.6%Largest-city concentration · Paris
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
107
11-50
16

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among startup law firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in France whose own description of what they do matches “startup law firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names startup law firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among startup law firms, and records with no verified work email. Companies headquartered outside France are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every listed company carries at least one verified work email, 224 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 6, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Startup law firms by metro

  • Startup law firms in Paris59

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names startup law firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many startup law firms are there based in France?

RevenueBase identified 124 startup law firms headquartered in France as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Gueguen Avocats, headquartered in La Chapelle Sur Erdre, tops this list with the largest team on record.

Which city has the most startup law firms?

Paris leads with 59 headquartered companies, followed by Lyon (11) and Marseille (5).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 224 verified decision-maker contacts tracked across these 124 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 6, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.