Company lists · Data refreshed November 2026
Top 25 Underwater contractors based in France
RevenueBase identified 189 company matches for underwater contractors associated with France as of November 2026 and tracks 9,426 professional contacts across them, including 3,121 with verified work emails. La Ciotat is the largest hub.
This list covers company matches for underwater contractors associated with France, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 underwater contractors based in France
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,178 contacts → | ||||
Exact match “Installée sur la façade Atlantique, Chantiers de l’Atlantique est une entreprise de construction maritime (paquebots, sous-stations…) et de services aux flottes.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 1,953 contacts → | ||||
Exact match “The Ponticelli Frères Group is one of the main European service suppliers to companies in the energy (oil and gas, nuclear, renewable energy), industrial (chemical, steelworks…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 1,263 contacts → | ||||
Exact match “Alcatel Submarine Networks, leads the industry in terms of transmission capacity and installed base with more than km of optical submarine systems deployed worldwide (enough to…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 631 contacts → | ||||
Exact match “ETANDEX is France’s leading independent specialty construction company Turnover : 64 million Euros in 2013 Employees : 350 Branches : 10 ETANDEX was initially created as a…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 265 contacts → | ||||
Exact match “SPECIALISED ACTIVITIES & EPC CONTRACTOR FOR THE ENERGY INDUSTRY International Contractor for design, construction and operating of production, transport and storage…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 236 contacts → | ||||
Exact match “Orange Marine, a wholly-owned subsidiary of the Orange Group, is a cable ship owner specialized in offshore work on submarine cables, from designing and engineering new projects…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 230 contacts → | ||||
Exact match “GEOCEAN is a marine work contractor, based near Marseille, in the south of France, with 30 years experience worldwide.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 190 contacts → | ||||
Exact match “HYDROKARST joins JARNIAS GROUP!” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 176 contacts → | ||||
Exact match “Founded in 2015, ALSEAMAR, a subsidiary of the ALCEN Group, develops, designs, operates and maintains high-performance underwater solutions that meet the requirements of…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 71 contacts → | ||||
Exact match “L’entreprise NOUVETRA, est localisée à l’Est de Lyon : Adresse : 609 chemin de Salonique 38220 JANNEYRIAS Sur ce site est regroupé l’ensemble du personnel administratif et…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 70 contacts → | ||||
Exact match “Depuis plus de 40 ans, DPSM conçoit et réalise tous travaux de réhabilitation d’ouvrages souterrains (eau potable, eaux usées, eaux pluviales, fluides industriels) afin de réparer…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 55 contacts → | ||||
Exact match “Le Groupe Merceron est un acteur majeur de la Vendée, fort de près de 70 ans d'expérience dans les travaux maritimes, fluviaux, environnementaux et l'exploitation de carrières.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 34 contacts → | ||||
Exact match “Satif OA accompagne ses clients dans le cadre de leurs besoins en expertises en milieu hostile (subaquatique, confiné, pollué.) Les moyens humains et techniques permettent…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 31 contacts → | ||||
Exact match “Ingénierie et services subaquatiques robotisés.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 28 contacts → | ||||
Exact match “TSURUMI France is the French subsidiary of TSURUMI Pump.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 26 contacts → | ||||
Exact match “L’Ecole Nationale des Scaphandriers (ENS) est l’une des quatre écoles francophones au monde destinée à la formation des plongeurs professionnels.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 25 contacts → | ||||
Exact match “Forssea Robotics is a smart ROV asset and services provider established in 2016 to increase productivity of underwater inspection and light intervention repeatable tasks.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 24 contacts → | ||||
Exact match “Marina Builder.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 24 contacts → | ||||
Exact match “Depuis 25 ans l'entreprise TETIS, filiale du Groupe ETPO, est spécialisée dans les domaines des travaux subaquatiques, maritimes et fluviaux.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 22 contacts → | ||||
Exact match “At d2m, our expert team of marine engineers, naval architects, and offshore contractors have been committed to crafting innovative solutions for complex maritime projects for over…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 22 contacts → | ||||
Exact match “Découvrez notre expertise et nos réalisations sur notre site ou suivez nous pour rester informé de nos actualités et projets!” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 22 contacts → | ||||
Exact match “Entreprise Vauclusienne dynamique, réactive et innovante dans le domaine des travaux sans tranchées spécialisée en Forage Dirigé.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 21 contacts → | ||||
Exact match “GEPS Techno builds and operates autonomous, connected offshore platforms serving as persistent floating infrastructure for maritime monitoring & surveillance, along with other…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 20 contacts → | ||||
Exact match “Fondé en 1962, Copcie est un acteur de référence dans les métiers de la Couverture, la Plomberie et l'Etanchéité à Paris et en Ile-de-France.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 20 contacts → | ||||
Exact match “Spécialisés dans l'acquisition et le traitement de données géophysiques marines, la plongée, la recherche et le renflouement d'épaves, la société CERES répond aux besoins de ses…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “underwater contractors”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 189 underwater contractors based in France
See the full list, filter by size, metro and specialty, and access 3,121 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Underwater contractors based in France at a glance
As of Nov 6, 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 189 companies.
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Company records associated with France whose business descriptions match “underwater contractors” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- 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 displayed company carries at least one verified work email. RevenueBase tracks 3,121 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “underwater contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many underwater contractors are there based in France?
RevenueBase identified 189 company matches for underwater contractors associated with France as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
Chantiers DE L'atlantique tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most underwater contractors?
La Ciotat leads with 6 company records, followed by Marseille (5) and Paris (4).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 3,121 professional contacts with verified work emails tracked across these 189 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.
Ready to reach these companies? Verified emails and direct dials for all 189 underwater contractors based in France. Start with a free account, no credit card.
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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 SmartSearch, 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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Company intelligence · public preview
Top 25 underwater contractors based in France
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 189 matching company records for underwater contractors based in France, with 9,426 tracked contacts and 3,121 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 underwater contractors based in France
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Chantiers DE L'atlantiquechantiers-atlantique.comHQ: Saint-nazaire, FranceReported employees: 1,001-5,000 | Saint-nazaire, France | 1,001-5,000 | Exact match | 2,178 contacts → |
“Installée sur la façade Atlantique, Chantiers de l’Atlantique est une entreprise de construction maritime (paquebots, sous-stations…) et de services aux flottes.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Groupe Ponticelli Frèresponticelli.comHQ: FranceReported employees: 5,001-10,000 | France | 5,001-10,000 | Exact match | 1,953 contacts → |
“The Ponticelli Frères Group is one of the main European service suppliers to companies in the energy (oil and gas, nuclear, renewable energy), industrial (chemical, steelworks…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  ASNasn.comHQ: Les Ulis, FranceReported employees: 1,001-5,000 | Les Ulis, France | 1,001-5,000 | Exact match | 1,263 contacts → |
“Alcatel Submarine Networks, leads the industry in terms of transmission capacity and installed base with more than km of optical submarine systems deployed worldwide (enough to…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Etandexemploi.etandex.frHQ: Les Ulis Courtaboeuf, FranceReported employees: 501-1,000 | Les Ulis Courtaboeuf, France | 501-1,000 | Exact match | 631 contacts → |
“ETANDEX is France’s leading independent specialty construction company Turnover : 64 million Euros in 2013 Employees : 350 Branches : 10 ETANDEX was initially created as a…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Entrepose Groupentrepose.comHQ: Colombes, FranceReported employees: 1,001-5,000 | Colombes, France | 1,001-5,000 | Exact match | 265 contacts → |
“SPECIALISED ACTIVITIES & EPC CONTRACTOR FOR THE ENERGY INDUSTRY International Contractor for design, construction and operating of production, transport and storage…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Orange Marinemarine.orange.comHQ: Paris, FranceReported employees: 201-500 | Paris, France | 201-500 | Exact match | 236 contacts → |
“Orange Marine, a wholly-owned subsidiary of the Orange Group, is a cable ship owner specialized in offshore work on submarine cables, from designing and engineering new projects…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Geoceangeocean.comHQ: Cassis, FranceReported employees: Not recorded | Cassis, France | Not recorded | Exact match | 230 contacts → |
“GEOCEAN is a marine work contractor, based near Marseille, in the south of France, with 30 years experience worldwide.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Hydrokarsthydrokarst.frHQ: Sassenage, FranceReported employees: 201-500 | Sassenage, France | 201-500 | Exact match | 190 contacts → |
“HYDROKARST joins JARNIAS GROUP!” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Alseamaralseamar-alcen.comHQ: Rousset, FranceReported employees: 201-500 | Rousset, France | 201-500 | Exact match | 176 contacts → |
“Founded in 2015, ALSEAMAR, a subsidiary of the ALCEN Group, develops, designs, operates and maintains high-performance underwater solutions that meet the requirements of…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Nouvetra-Serfim OAnouvetra.comHQ: Janneyrias, FranceReported employees: 51-200 | Janneyrias, France | 51-200 | Exact match | 71 contacts → |
“L’entreprise NOUVETRA, est localisée à l’Est de Lyon : Adresse : 609 chemin de Salonique 38220 JANNEYRIAS Sur ce site est regroupé l’ensemble du personnel administratif et…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  DPSMdpsm.euHQ: Montrabé, FranceReported employees: 11-50 | Montrabé, France | 11-50 | Exact match | 70 contacts → |
“Depuis plus de 40 ans, DPSM conçoit et réalise tous travaux de réhabilitation d’ouvrages souterrains (eau potable, eaux usées, eaux pluviales, fluides industriels) afin de réparer…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Groupe Merceronmerceron.comHQ: Sallertaine, FranceReported employees: 51-200 | Sallertaine, France | 51-200 | Exact match | 55 contacts → |
“Le Groupe Merceron est un acteur majeur de la Vendée, fort de près de 70 ans d'expérience dans les travaux maritimes, fluviaux, environnementaux et l'exploitation de carrières.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Satif OAsatif-sa.comHQ: La Talaudière, FranceReported employees: 11-50 | La Talaudière, France | 11-50 | Exact match | 34 contacts → |
“Satif OA accompagne ses clients dans le cadre de leurs besoins en expertises en milieu hostile (subaquatique, confiné, pollué.) Les moyens humains et techniques permettent…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Watertrackswatertracks.frHQ: Perols, FranceReported employees: 11-50 | Perols, France | 11-50 | Exact match | 31 contacts → |
“Ingénierie et services subaquatiques robotisés.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Tsurumi Francetsurumi.frHQ: Saint-estève-janson, FranceReported employees: 11-50 | Saint-estève-janson, France | 11-50 | Exact match | 28 contacts → |
“TSURUMI France is the French subsidiary of TSURUMI Pump.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Ecole Nationale DES Scaphandriersens-france.comHQ: Frejus, FranceReported employees: 11-50 | Frejus, France | 11-50 | Exact match | 26 contacts → |
“L’Ecole Nationale des Scaphandriers (ENS) est l’une des quatre écoles francophones au monde destinée à la formation des plongeurs professionnels.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Forssea Roboticsforssea-robotics.frHQ: Paris, FranceReported employees: 11-50 | Paris, France | 11-50 | Exact match | 25 contacts → |
“Forssea Robotics is a smart ROV asset and services provider established in 2016 to increase productivity of underwater inspection and light intervention repeatable tasks.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Hansen Marinehansen-marine.comHQ: Croissy Beaubourg, FranceReported employees: 11-50 | Croissy Beaubourg, France | 11-50 | Exact match | 24 contacts → |
“Marina Builder.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  TETIStetis.frHQ: Bellevigny, FranceReported employees: 11-50 | Bellevigny, France | 11-50 | Exact match | 24 contacts → |
“Depuis 25 ans l'entreprise TETIS, filiale du Groupe ETPO, est spécialisée dans les domaines des travaux subaquatiques, maritimes et fluviaux.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  D2m Engineeringd2m-group.comHQ: Six Fours Les Plages, FranceReported employees: 11-50 | Six Fours Les Plages, France | 11-50 | Exact match | 22 contacts → |
“At d2m, our expert team of marine engineers, naval architects, and offshore contractors have been committed to crafting innovative solutions for complex maritime projects for over…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Actium Groupeactium-groupe.comHQ: Caurel, FranceReported employees: 51-200 | Caurel, France | 51-200 | Exact match | 22 contacts → |
“Découvrez notre expertise et nos réalisations sur notre site ou suivez nous pour rester informé de nos actualités et projets!” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  For-Drillfor-drill.comHQ: Monteux, FranceReported employees: 11-50 | Monteux, France | 11-50 | Exact match | 22 contacts → |
“Entreprise Vauclusienne dynamique, réactive et innovante dans le domaine des travaux sans tranchées spécialisée en Forage Dirigé.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Geps Technogeps-techno.comHQ: Guérande, FranceReported employees: 11-50 | Guérande, France | 11-50 | Exact match | 21 contacts → |
“GEPS Techno builds and operates autonomous, connected offshore platforms serving as persistent floating infrastructure for maritime monitoring & surveillance, along with other…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Copciecopcie.frHQ: Antony, FranceReported employees: 11-50 | Antony, France | 11-50 | Exact match | 20 contacts → |
“Fondé en 1962, Copcie est un acteur de référence dans les métiers de la Couverture, la Plomberie et l'Etanchéité à Paris et en Ile-de-France.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  CERESceresm.comHQ: Montfarville, FranceReported employees: 1-10 | Montfarville, France | 1-10 | Exact match | 20 contacts → |
“Spécialisés dans l'acquisition et le traitement de données géophysiques marines, la plongée, la recherche et le renflouement d'épaves, la société CERES répond aux besoins de ses…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 189 company matches
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Underwater contractors: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
186 records in the displayed employee bands.
3 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 189 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for underwater contractors?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many underwater contractors did RevenueBase find based in France?
The saved snapshot records 189 matching company records, 9,426 tracked contacts and 3,121 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 underwater contractors based in France. Snapshot: November 6, 2026. https://revenuebase.ai/companies/underwater-contractors/france.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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Company intelligence · public preview
Top 25 underwater contractors based in France
RevenueBase records 189 matching company records for underwater contractors based in France, with 9,426 tracked contacts and 3,121 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 underwater contractors based in France
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Chantiers DE L'atlantiquechantiers-atlantique.com HQ: Saint-nazaire, FranceReported employees: 1,001-5,000 | Saint-nazaire, France | 1,001-5,000 | Exact match | 2,178 contacts → |
“Installée sur la façade Atlantique, Chantiers de l’Atlantique est une entreprise de construction maritime (paquebots, sous-stations…) et de services aux flottes.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Groupe Ponticelli Frèresponticelli.com HQ: FranceReported employees: 5,001-10,000 | France | 5,001-10,000 | Exact match | 1,953 contacts → |
“The Ponticelli Frères Group is one of the main European service suppliers to companies in the energy (oil and gas, nuclear, renewable energy), industrial (chemical, steelworks…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | ASNasn.com HQ: Les Ulis, FranceReported employees: 1,001-5,000 | Les Ulis, France | 1,001-5,000 | Exact match | 1,263 contacts → |
“Alcatel Submarine Networks, leads the industry in terms of transmission capacity and installed base with more than km of optical submarine systems deployed worldwide (enough to…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Etandexemploi.etandex.fr HQ: Les Ulis Courtaboeuf, FranceReported employees: 501-1,000 | Les Ulis Courtaboeuf, France | 501-1,000 | Exact match | 631 contacts → |
“ETANDEX is France’s leading independent specialty construction company Turnover : 64 million Euros in 2013 Employees : 350 Branches : 10 ETANDEX was initially created as a…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Entrepose Groupentrepose.com HQ: Colombes, FranceReported employees: 1,001-5,000 | Colombes, France | 1,001-5,000 | Exact match | 265 contacts → |
“SPECIALISED ACTIVITIES & EPC CONTRACTOR FOR THE ENERGY INDUSTRY International Contractor for design, construction and operating of production, transport and storage…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Orange Marinemarine.orange.com HQ: Paris, FranceReported employees: 201-500 | Paris, France | 201-500 | Exact match | 236 contacts → |
“Orange Marine, a wholly-owned subsidiary of the Orange Group, is a cable ship owner specialized in offshore work on submarine cables, from designing and engineering new projects…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Geoceangeocean.com HQ: Cassis, FranceReported employees: Not recorded | Cassis, France | Not recorded | Exact match | 230 contacts → |
“GEOCEAN is a marine work contractor, based near Marseille, in the south of France, with 30 years experience worldwide.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Hydrokarsthydrokarst.fr HQ: Sassenage, FranceReported employees: 201-500 | Sassenage, France | 201-500 | Exact match | 190 contacts → |
“HYDROKARST joins JARNIAS GROUP!” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Alseamaralseamar-alcen.com HQ: Rousset, FranceReported employees: 201-500 | Rousset, France | 201-500 | Exact match | 176 contacts → |
“Founded in 2015, ALSEAMAR, a subsidiary of the ALCEN Group, develops, designs, operates and maintains high-performance underwater solutions that meet the requirements of…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Nouvetra-Serfim OAnouvetra.com HQ: Janneyrias, FranceReported employees: 51-200 | Janneyrias, France | 51-200 | Exact match | 71 contacts → |
“L’entreprise NOUVETRA, est localisée à l’Est de Lyon : Adresse : 609 chemin de Salonique 38220 JANNEYRIAS Sur ce site est regroupé l’ensemble du personnel administratif et…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | DPSMdpsm.eu HQ: Montrabé, FranceReported employees: 11-50 | Montrabé, France | 11-50 | Exact match | 70 contacts → |
“Depuis plus de 40 ans, DPSM conçoit et réalise tous travaux de réhabilitation d’ouvrages souterrains (eau potable, eaux usées, eaux pluviales, fluides industriels) afin de réparer…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Groupe Merceronmerceron.com HQ: Sallertaine, FranceReported employees: 51-200 | Sallertaine, France | 51-200 | Exact match | 55 contacts → |
“Le Groupe Merceron est un acteur majeur de la Vendée, fort de près de 70 ans d'expérience dans les travaux maritimes, fluviaux, environnementaux et l'exploitation de carrières.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Satif OAsatif-sa.com HQ: La Talaudière, FranceReported employees: 11-50 | La Talaudière, France | 11-50 | Exact match | 34 contacts → |
“Satif OA accompagne ses clients dans le cadre de leurs besoins en expertises en milieu hostile (subaquatique, confiné, pollué.) Les moyens humains et techniques permettent…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Watertrackswatertracks.fr HQ: Perols, FranceReported employees: 11-50 | Perols, France | 11-50 | Exact match | 31 contacts → |
“Ingénierie et services subaquatiques robotisés.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Tsurumi Francetsurumi.fr HQ: Saint-estève-janson, FranceReported employees: 11-50 | Saint-estève-janson, France | 11-50 | Exact match | 28 contacts → |
“TSURUMI France is the French subsidiary of TSURUMI Pump.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Ecole Nationale DES Scaphandriersens-france.com HQ: Frejus, FranceReported employees: 11-50 | Frejus, France | 11-50 | Exact match | 26 contacts → |
“L’Ecole Nationale des Scaphandriers (ENS) est l’une des quatre écoles francophones au monde destinée à la formation des plongeurs professionnels.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Forssea Roboticsforssea-robotics.fr HQ: Paris, FranceReported employees: 11-50 | Paris, France | 11-50 | Exact match | 25 contacts → |
“Forssea Robotics is a smart ROV asset and services provider established in 2016 to increase productivity of underwater inspection and light intervention repeatable tasks.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Hansen Marinehansen-marine.com HQ: Croissy Beaubourg, FranceReported employees: 11-50 | Croissy Beaubourg, France | 11-50 | Exact match | 24 contacts → |
“Marina Builder.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | TETIStetis.fr HQ: Bellevigny, FranceReported employees: 11-50 | Bellevigny, France | 11-50 | Exact match | 24 contacts → |
“Depuis 25 ans l'entreprise TETIS, filiale du Groupe ETPO, est spécialisée dans les domaines des travaux subaquatiques, maritimes et fluviaux.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | D2m Engineeringd2m-group.com HQ: Six Fours Les Plages, FranceReported employees: 11-50 | Six Fours Les Plages, France | 11-50 | Exact match | 22 contacts → |
“At d2m, our expert team of marine engineers, naval architects, and offshore contractors have been committed to crafting innovative solutions for complex maritime projects for over…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Actium Groupeactium-groupe.com HQ: Caurel, FranceReported employees: 51-200 | Caurel, France | 51-200 | Exact match | 22 contacts → |
“Découvrez notre expertise et nos réalisations sur notre site ou suivez nous pour rester informé de nos actualités et projets!” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | For-Drillfor-drill.com HQ: Monteux, FranceReported employees: 11-50 | Monteux, France | 11-50 | Exact match | 22 contacts → |
“Entreprise Vauclusienne dynamique, réactive et innovante dans le domaine des travaux sans tranchées spécialisée en Forage Dirigé.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Geps Technogeps-techno.com HQ: Guérande, FranceReported employees: 11-50 | Guérande, France | 11-50 | Exact match | 21 contacts → |
“GEPS Techno builds and operates autonomous, connected offshore platforms serving as persistent floating infrastructure for maritime monitoring & surveillance, along with other…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Copciecopcie.fr HQ: Antony, FranceReported employees: 11-50 | Antony, France | 11-50 | Exact match | 20 contacts → |
“Fondé en 1962, Copcie est un acteur de référence dans les métiers de la Couverture, la Plomberie et l'Etanchéité à Paris et en Ile-de-France.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | CERESceresm.com HQ: Montfarville, FranceReported employees: 1-10 | Montfarville, France | 1-10 | Exact match | 20 contacts → |
“Spécialisés dans l'acquisition et le traitement de données géophysiques marines, la plongée, la recherche et le renflouement d'épaves, la société CERES répond aux besoins de ses…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 189 company matches
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Underwater contractors: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
186 records in the displayed employee bands.
3 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 189 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for underwater contractors?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many underwater contractors did RevenueBase find based in France?
The saved snapshot records 189 matching company records, 9,426 tracked contacts and 3,121 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 underwater contractors based in France. Snapshot: November 6, 2026. https://revenuebase.ai/companies/underwater-contractors/france.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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