Company lists · Data refreshed September 2026

Top 20 Port and harbor consulting firms based in France

RevenueBase identified 85 port and harbor consulting firms headquartered in France as of September 2026 and tracks 878 professional contacts across them, including 100 with verified work emails. Marseille is the largest hub.

This list covers port and harbor consulting 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 29, 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 29, 2026 86% judged on-target in blind review
85Companies
878Contacts tracked
100Verified emails
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The 20 largest port and harbor consulting firms based in France

Ranked by team size
Top 20 of 85 port and harbor consulting firms based in France, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to port and harbor consulting 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 evidenceSallertaine, FranceHQ checked Sep 29, 202651-20051 contacts →

Indirect evidence

“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.”

Source: RevenueBase Database · checked Sep 29, 2026
2Indirect evidenceMont De Marsan, FranceHQ checked Sep 29, 202611-5019 contacts →

Indirect evidence

“Depuis 2006, SEANEO est une société de conseil et de services en environnement littoral et marin, en aquaculture et pêche (gestion des zones côtières, Aires Marines Protégées…”

Source: RevenueBase Database · checked Sep 29, 2026
3Indirect evidenceMontrouge, FranceHQ checked Sep 29, 202611-5018 contacts →

Indirect evidence

“Société privée d’ingénierie des infrastructures, de l’aménagement, de la mobilité et de l’environnement, ERA propose ses compétences techniques et son expertise pour- Les…”

Source: RevenueBase Database · checked Sep 29, 2026
4Indirect evidenceParis, FranceHQ checked Sep 29, 202611-5012 contacts →

Indirect evidence

“Welcome to d2m Services!”

Source: RevenueBase Database · checked Sep 29, 2026
5Indirect evidenceBiot, FranceHQ checked Sep 29, 202611-5011 contacts →

Indirect evidence

“The company specializes in maritime, river and coastal engineering.”

Source: RevenueBase Database · checked Sep 29, 2026
6Indirect evidenceVilleneuve D'ascq, FranceHQ checked Sep 29, 20261-1011 contacts →

Indirect evidence

“STRATE - Bureau d'étude Amenagement urbain, VRD.”

Source: RevenueBase Database · checked Sep 29, 2026
7Partial evidenceLorient, FranceHQ checked Sep 29, 202651-2008 contacts →

Partial evidence

“SOCIETE D'ECONOMIE MIXTE LORIENT - KEROMAN is a maritime company based out of Port de Kéroman Direction du Port, Lorient, France.”

Source: RevenueBase Database · checked Sep 29, 2026
8Partial evidenceFréjus, FranceHQ checked Sep 29, 202651-2008 contacts →

Partial evidence

“Rompue à l’exploitation, la conception, l’aménagement et l’audit de ports et installations portuaires de Pêche et de Plaisance, la Société SODEPORTS capitalise au travers de ses…”

Source: RevenueBase Database · checked Sep 29, 2026
9Partial evidenceNantes, FranceHQ checked Sep 29, 20261-108 contacts →

Partial evidence

“Oppy International is a consulting firm specializing in marine projects, focusing on naval systems, maritime infrastructure, and floating structures across Europe, Canada, and…”

Source: RevenueBase Database · checked Sep 29, 2026
10Indirect evidenceAgen, FranceHQ checked Sep 29, 202611-507 contacts →

Indirect evidence

“PME, créée en 2004, notre société réalise principalement des missions d’ingénierie d’Aménagement, d’Infrastructures et de Mobilité pour des clients publics et privés de la…”

Source: RevenueBase Database · checked Sep 29, 2026
11Partial evidenceLa Rochelle, FranceHQ checked Sep 29, 202651-2007 contacts →

Partial evidence

“MILLE407 (1407) is a port and maritime advisory firm part of the CPCS Group, a global management consultant working across the transport, energy, and infrastructure sectors.”

Source: RevenueBase Database · checked Sep 29, 2026
12Indirect evidenceFranceHQ checked Sep 29, 20261-105 contacts →

Indirect evidence

“SML est une société de conseil stratégique spécialisée dans les domaines de la mer et du littoral créée en 2010.”

Source: RevenueBase Database · checked Sep 29, 2026
13Partial evidenceNantes, FranceHQ checked Sep 29, 20261-105 contacts →

Partial evidence

“H&T is a specialized naval architecture consulting firm.”

Source: RevenueBase Database · checked Sep 29, 2026
14Indirect evidenceDécines-charpieu, FranceHQ checked Sep 29, 20261-105 contacts →

Indirect evidence

“AGS Développement est un bureau d’ingénierie dans le domaine des infrastructures urbaines et routière, implantée en région Rhône-Alpes depuis 2007.”

Source: RevenueBase Database · checked Sep 29, 2026
15Indirect evidencePerpignan, FranceHQ checked Sep 29, 20261-104 contacts →

Indirect evidence

“DSG Consultants conseille et assiste les entreprises évoluant dans le secteur portuaire ou la filière vracs solides, au cours des différentes phases de leur développement.DSG…”

Source: RevenueBase Database · checked Sep 29, 2026
16Indirect evidenceMarseille, FranceHQ checked Sep 29, 20261-103 contacts →

Indirect evidence

“See’Up est une société de conseil basée à Marseille, spécialisée dans le secteur maritime, portuaire et multimodal qu’il s’agisse de transport de marchandises (conteneurs, vracs…”

Source: RevenueBase Database · checked Sep 29, 2026
17Indirect evidenceQuimper, FranceHQ checked Sep 29, 20261-101 contacts →

Indirect evidence

“Audit, conseil et assistance technique, soutien documentaire dans le domaine des travaux d’infrastructures maritimes, côtières, portuaires, fluviales, lacustres, subaquatiques…”

Source: RevenueBase Database · checked Sep 29, 2026
18Indirect evidencePort-vendres, FranceHQ checked Sep 29, 20261-101 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 29, 2026
19Indirect evidencePloërmel, FranceHQ checked Sep 29, 20261-101 contacts →

Indirect evidence

“BMd engineering est un bureau d’études spécialisé dans les domaines du génie civil, des ouvrages maritimes et portuaires, des ouvrages d’art et de la géotechnique”

Source: RevenueBase Database · checked Sep 29, 2026
20Indirect evidenceRambouillet, FranceHQ checked Sep 29, 20261-101 contacts →

Indirect evidence

“AERMA est une société de conseil et de gestion dans le domaine de la navigation maritime et fluviale.”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 20 of 85 port and harbor consulting firms based in France

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Port and harbor consulting firms based in France at a glance

As of Sep 29, 2026
11.4%Verified-email coverage
10.3Average contacts per company
1-10Median size (employees)
5.9%Largest-city concentration · Marseille
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
56
11-50
17
51-200
7
201-500
1
501-1,000
2

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 85 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 port and harbor consulting 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 “port and harbor consulting 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 port and harbor consulting 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 port and harbor consulting 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, 100 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 29, 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 port and harbor consulting 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 port and harbor consulting firms are there based in France?

RevenueBase identified 85 port and harbor consulting 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?

Groupe Merceron, headquartered in Sallertaine, tops this list with the largest team on record.

Which city has the most port and harbor consulting firms?

Marseille leads with 5 headquartered companies, followed by Paris (5) and Lorient (4).

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 100 verified decision-maker contacts tracked across these 85 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 29, 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.