Company lists · Data refreshed September 2026
Top 25 Professional service firms based in France
RevenueBase identified 1,205 professional service firms headquartered in France as of September 2026 and tracks 34,746 professional contacts across them, including 13,748 with verified work emails. Paris is the largest hub.
This list covers professional service 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 20, 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.
The 25 largest professional service firms based in France
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 3,278 contacts → | ||||
Indirect evidence “Crée en 1991 In Extenso est l’un des leaders de l’expertise comptable en France.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,051 contacts → | ||||
Indirect evidence “Une vision augmentée du conseil au service de votre réussite.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 800 contacts → | ||||
Indirect evidence “Pour ORCOM, le conseil est un état d'esprit.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 674 contacts → | ||||
Indirect evidence “Diriger une entreprise aujourd’hui, c’est faire face à des décisions de plus en plus complexes.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 496 contacts → | ||||
Indirect evidence “Groupe d’expertise comptable, de conseil et d’audit, EUREX apporte aux chefs d’entreprise une offre de services complète et des solutions adaptées à chaque situation particulière.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 474 contacts → | ||||
Indirect evidence “La FED est une société d’expertise-comptable avec une mission précise : accompagner les entrepreneurs,favoriser leur réussite.Grâce à nos valeurs, nous bâtissons une relation de…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 436 contacts → | ||||
Indirect evidence “Nexia S&A, acteur de l’audit et du conseil, apporte des solutions pertinentes à ses clients dans les domaines comptables et financiers et les accompagne pour les mettre en œuvre.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 350 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 345 contacts → | ||||
Indirect evidence “Based in Paris, Lyon, Rennes, Le Havre, Toulouse, Aix en Provence, Casablanca, London and New York, BM & A is an independent and international group positioned on the audit and…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 284 contacts → | ||||
Indirect evidence “The 23 expert managers, supported by 250 specialist employees, support and advise their clients on a daily basis, from bookkeeping to advice and the engineering of solutions…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 263 contacts → | ||||
Indirect evidence “Afigec is a multi-skilled accounting firm that is constantly improving the usual client relationship framework and the proximity with its clients.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 258 contacts → | ||||
Indirect evidence “Le groupe de conseil ADECIA, spécialisé dans l’accompagnement du dirigeant, accompagne les dirigeants et les entreprises, de toutes tailles et de tous secteurs, dans le…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 245 contacts → | ||||
Indirect evidence “FIDSUD, cabinet d'expertise comptable, de conseil aux dirigeants, et d'audit fortement implanté dans le Grand Sud de la France (Aquitaine, Midi-Pyrénées, Languedoc Roussillon…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 237 contacts → | ||||
Indirect evidence “Fondé en 1944, Extencia est un cabinet d'expertise comptable indépendant qui a su évoluer avec son temps tout en conservant ses valeurs fondamentales.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 223 contacts → | ||||
Indirect evidence “CAPEOS accompagne la gestion et le développement d’entreprises depuis plus de 45 ans.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 223 contacts → | ||||
Indirect evidence “Semaphores, a consulting and expertise firm, is involved in a very wide range of skills: from public accounting to organizational strategy projects, including organization…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 210 contacts → | ||||
Indirect evidence “Acom Expertise s’engage aux côtés de ses équipes et des dirigeants et dirigeantes d’entreprises pour transformer chaque projet en succès durable.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 191 contacts → | ||||
Indirect evidence “Cocerto : votre partenaire de proximité pour un accompagnement à 360° Chez Cocerto, nous plaçons la proximité et la réactivité au cœur de notre accompagnement.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 188 contacts → | ||||
Indirect evidence “Advolis, a Paris based firm that specialises in auditing and business consulting and Orfis, a Lyon firm that provides auditing, consultancy and corporate services, merged in April…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 182 contacts → | ||||
Indirect evidence “Exco Valliance est une entreprise positionnée sur les métiers de l’expertise comptable, de l'audit et du conseil.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 175 contacts → | ||||
Indirect evidence “BDL, cabinet d’expertise comptable, d’audit et de conseil, accompagne depuis 1993 les entreprises dans les Hauts-de-France.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 174 contacts → | ||||
Strong evidence “Depuis plus de 30 ans, ACORA accompagne les entrepreneurs, dirigeants et professions libérales en leur offrant bien plus qu’une expertise comptable : une véritable force…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 169 contacts → | ||||
Indirect evidence “CHD Marque d'Expertise met en œuvre ses expertises, auprès des entreprises et de leurs dirigeants.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 160 contacts → | ||||
Strong evidence “Avec un savoir-faire reconnu depuis 50 ans, le Groupe BBM réunit à travers différentes filiales 300 professionnels et compte aujourd’hui de nombreuses implantations en France.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 151 contacts → | ||||
Indirect evidence “SOGECA, c’est un réseau de 250 collaborateurs rassemblés par des valeurs communes d'expertise, de rigueur et de convivialité pour accompagner au mieux les chefs d’entreprises dans…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: professional service firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names professional service firms.
- Partial evidence
- Its own public description names part of professional service firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name professional service firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 1,205 professional service firms based in France
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Professional service firms based in France at a glance
As of Sep 20, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for France, so it is reported there. Company counts and contact totals on this page are exact for France, over 1,205 companies.
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 professional service 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 “professional service 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 professional service 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 professional service 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, 13,748 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 20, 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.
Professional service firms by metro
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 professional service 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 professional service firms are there based in France?
RevenueBase identified 1,205 professional service 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?
In Extenso, headquartered in Lyon, tops this list with the largest team on record.
Which city has the most professional service firms?
Paris leads with 238 headquartered companies, followed by Lyon (34) and Toulouse (28).
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 13,748 verified decision-maker contacts tracked across these 1,205 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 20, 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.
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