Company lists · Data refreshed September 2026
Top 25 Investigation firms based in France
RevenueBase identified 245 investigation firms headquartered in France as of September 2026 and tracks 2,876 professional contacts across them, including 219 with verified work emails. Paris is the largest hub.
This list covers investigation 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 investigation firms based in France
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,233 contacts → | ||||
Strong evidence “BANQUE POPULAIRE BOURGOGNE FRANCHE-COM is a Security and Investigations company located in 14 BOULEVARD DE LA TREMOUILLE, DIJON, Burgundy, France.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 264 contacts → | ||||
Indirect evidence “iCOVER Group provides high-quality Third-Party Background Screening, Monitoring, and Due Diligence services.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 120 contacts → | ||||
Strong evidence “SERIS AIRPORT is a security and investigations company based out of 6 RUE DU GENERAL DE LARMINAT, PARIS, France.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 42 contacts → | ||||
Indirect evidence “Fidelia Corp est une entreprise spécialisée dans la sécurité privée, la surveillance et la protection des sites professionnels.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 33 contacts → | ||||
Indirect evidence “Finacca intervient à chaque étape de la chaîne de valeur du risque financier client : de l’octroi du crédit à son risque de défaut dans le cadre de sa gestion globale.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 26 contacts → | ||||
Indirect evidence “Depuis plus de 20 ans, VPG Associés accompagne les notaires avec précision et humanité dans la recherche d’héritiers ou la vérification de droits en cas de succession partielle…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 18 contacts → | ||||
Strong evidence “Détecnet, expert en investigations, exerce son activité depuis dans le respect de l’éthique et du code déontologique de la profession.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 17 contacts → | ||||
Strong evidence “ATLANTISECURITE is a security and investigations company” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 15 contacts → | ||||
Strong evidence “AGENCE ICARE SECURITE is a security and investigations company based out of 8 AVENUE GEORGES POMPIDOU, LAVAUR, France.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 12 contacts → | ||||
Indirect evidence “REAXIS Groupe 34 ans - 4 sociétés - 4 pôles de compétences Nous sommes l’un des seuls Groupe à disposer d’autant d’expertises en matière de gestion du risque Clients et pouvant…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 12 contacts → | ||||
Strong evidence “EKEM Partners is an independent advisory firm specialized in corporate investigations in case of Merger & Acquisitions and other time-sensitive situations.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 11 contacts → | ||||
Indirect evidence “Exco Paris (namely "Exco Paris ACE") provides expertise in independent appraisal, forensics and fraud services (and accounting and auditing services too - another branch).” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 9 contacts → | ||||
Strong evidence “CJ SECURITE PRIVEE is a security and investigations company based out of 18 QUAI LOUIS BLERIOT, PARIS, France.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 7 contacts → | ||||
Indirect evidence “Le groupe WENEO vous fait bénéficier de son expérience, d’analyses approfondies de vos process et d’une expertise reconnue sur nos trois métiers clés : recouvrement de créances…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 6 contacts → | ||||
Indirect evidence “Créée en 1998, la société Oi2R fait aujourd'hui partie du Groupe REAXIS et a développé un véritable savoir-faire en matière d’enquête fraude à l’assurance et incendie.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 5 contacts → | ||||
Indirect evidence “Focalyse est une société dédiée à la recherche des causes et circonstances d’incendie/explosion/bris de machine, vient de voir le jour.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 5 contacts → | ||||
Indirect evidence “SKAN1 offers direct, thorough online background checks of third parties to fulfill your risk management policy or your legal compliance obligations (Sapin 2 law for example).” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 5 contacts → | ||||
Strong evidence “PREVENTION SECURITE INTERVENTION (PSI) is a security and investigations company based out of 22 RUE JOHN MAYNARD KEYNES, MARSEILLE, France.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 4 contacts → | ||||
Strong evidence “Cabinet d'investigations prives, spécialisé dans l'enquête auprès des entreprises.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 3 contacts → | ||||
Indirect evidence “Créé en 1984, le Cabinet Arnoult International se démarque des autres cabinets d’enquêtes par le niveau de formation de ses collaborateurs (titulaires des diplômes d’enquêteur de…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 3 contacts → | ||||
Strong evidence “Odreo est une entreprise spécialisée dans la recherche de fuites et les investigations sur les réseaux d’eau.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 2 contacts → | ||||
Strong evidence “Depuis plus de 20 ans, Arca Conseil réalise en France et à l’international des enquêtes et des investigations à forte valeur ajoutée, sur l’individu et l’entreprise.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 2 contacts → | ||||
Indirect evidence “Notre cabinet d'expertise basé près de Clermont-Ferrand (Auvergne) est spécialisé dans l’analyse et l’évaluation des dommages électriques, et la recherche des causes et…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 2 contacts → | ||||
Indirect evidence “Mitigate your financial, legal, operational and reputational risks.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 2 contacts → | ||||
Indirect evidence “YMV & Co is a consulting company that focuses on two services : 1) Due diligence/OSINT 2) Fractional General Counsel” 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: investigation 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 investigation firms.
- Partial evidence
- Its own public description names part of investigation firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name investigation 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 245 investigation firms based in France
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Investigation 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 245 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 investigation 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 “investigation 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 investigation 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 investigation 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, 219 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.
Investigation firms by metro
- Investigation firms in Paris52
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 investigation 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 investigation firms are there based in France?
RevenueBase identified 245 investigation 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?
Banque Populaire Bourgogne Franche-Com, headquartered in Dijon, tops this list with the largest team on record.
Which city has the most investigation firms?
Paris leads with 52 headquartered companies, followed by Lyon (9) and Marseille (9).
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 219 verified decision-maker contacts tracked across these 245 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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