Company lists · Data refreshed September 2026
Top 12 Offshore well services based in France
RevenueBase identified 42 offshore well services headquartered in France as of September 2026 and tracks 4,567 professional contacts across them, including 74 with verified work emails. Paris is the largest hub.
This list covers offshore well services 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 12 largest offshore well services based in France
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 256 contacts → | ||||
Indirect evidence “With nearly two decades of experience, Caroil is a leading Drilling & Workover rig contractor with a diverse fleet of rigs and skillful and technical workforce providing safe and…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 216 contacts → | ||||
Indirect evidence “GEOCEAN is a marine work contractor, based near Marseille, in the south of France, with 30 years experience worldwide.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 109 contacts → | ||||
Partial evidence “TSM owns and operates 30 vessels and offers marine services to the offshore renewables industry, harbour and sea towage.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 25 contacts → | ||||
Partial evidence “GEPS Techno builds and operates autonomous, connected offshore platforms serving as persistent floating infrastructure for maritime monitoring & surveillance, along with other…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 13 contacts → | ||||
Partial evidence “DV Offshore’s expertise includes floating systems, terminals, mooring systems, floating wind turbines, subsea production, pipelines & risers, allowing us to provide technical and…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 12 contacts → | ||||
Partial evidence “Kappa Offshore Solutions is a marine engineering company specialized in offshore seismic data acquisition.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 8 contacts → | ||||
Partial evidence “OFFSHORE ENGINEERING SOLUTIONS At NAUTILUS DYNAMICS, we support and provide solutions to our clients in the offshore wind, oil and gas, floating PV, ports and other coastal…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 7 contacts → | ||||
Indirect evidence “NOVAWELL provides subsea technologies and services to the oil and gas industry, including pre-commissioning, inspection, maintenance and repair of subsea umbilicals, risers…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 7 contacts → | ||||
Partial evidence “Operating a modern fleet of vessels with highly qualified and seasoned personnel, Jifmar provides assistance to - Offshore Wind Farm Operators - Tidal and Wave Farm Operators -…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 5 contacts → | ||||
Partial evidence “The Socomet Sales team are international brokers specializing in the chartering, sale and purchase and newbuilding of vessels and rigs to support the offshore oil and gas…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 2 contacts → | ||||
Indirect evidence “Company history MOCS is an independent private limited company located in Europe, supplier of quality products and services to the oil & gas industry.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 1 contacts → | ||||
Indirect evidence 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: offshore well services. 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 offshore well services.
- Partial evidence
- Its own public description names part of offshore well services, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name offshore well services. 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 12 of 42 offshore well services based in France
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 74 reachable decision-makers.
Free signup · no credit card
Offshore well services 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 42 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 offshore well services, 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 “offshore well services”. 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 offshore well services), 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 offshore well services, 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, 74 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.
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 offshore well services, 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 offshore well services are there based in France?
RevenueBase identified 42 offshore well services 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?
Caroil, headquartered in Pau, tops this list with the largest team on record.
Which city has the most offshore well services?
Paris leads with 3 headquartered companies, followed by Lons (2) and Lorient (2).
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 74 verified decision-maker contacts tracked across these 42 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.
Ready to reach these companies? Verified emails and direct dials for all 42 offshore well services based in France. Start with a free account, no credit card.
Download this list →Related lists
Offshore well services by geography
- Offshore well services based in Argentina
- Offshore well services based in Australia
- Offshore well services based in Brazil
- Offshore well services based in Canada
- Offshore well services based in Colombia
- Offshore well services based in Denmark
- Offshore well services based in Egypt
- Offshore well services based in Germany
- Offshore well services based in India
- Offshore well services based in Indonesia
- Offshore well services based in Italy
- Offshore well services based in Malaysia
Browse the directory
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.