Company lists · Data refreshed November 2026

Top 25 Hydrographic survey services worldwide

RevenueBase identified 765 company matches for hydrographic survey services worldwide as of November 2026 and tracks 9,686 professional contacts across them, including 2,660 with verified work emails. The United States is the largest market and Navi Mumbai the largest hub.

This list covers company matches for hydrographic survey services worldwide, 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. Country and city lists for hydrographic survey services follow the table.

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.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
765Companies
9,686Contacts tracked
2,660Verified emails
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The 25 largest hydrographic survey services worldwide

Ranked by team size
Top 25 of 765 company matches for hydrographic survey services worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLaksevåg, United StatesHQ recorded Nov 6, 20261,001-5,0001,073 contacts →

Exact match

“Shearwater is a global marine geoscience and technology business.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchGreat Yarmouth, United KingdomHQ recorded Nov 6, 2026501-1,000557 contacts →

Exact match

“Gardline is a best-in-class provider of geophysical, geotechnical and environmental marine surveys.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchZwevegem, BelgiumHQ recorded Nov 6, 2026501-1,000415 contacts →

Exact match

“GEOxyz is an international maritime data company specialized in hydrographic, geophysical, geotechnical and topographical surveys, site investigations, renewable energy support…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchSharjah, United Arab EmiratesHQ recorded Nov 6, 2026201-500398 contacts →

Exact match

“Headquartered in the UAE, Horizon Geosciences provide marine survey and geotechnical services to an array of clients around the world.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchVästra Frölunda, SwedenHQ recorded Nov 6, 2026201-500219 contacts →

Exact match

“We collect and process information to visualise the conditions of the seabed.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchMilmort, BelgiumHQ recorded Nov 6, 202651-200152 contacts →

Exact match

“G-TEC provides marine and land based geophysical surveys.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchZeist, NB, NetherlandsHQ recorded Nov 6, 202651-200142 contacts →

Exact match

“QPS is a software design company specialised in Hydrographic and Maritime applications.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchCollege Station, TX, United StatesHQ recorded Nov 6, 202651-200115 contacts →

Exact match

“TDI-Brooks is a 27-year-old research and service company specializing in geotechnical and offshore survey projects; multi-disciplinary oceanographic and environmental projects…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchHouston, TX, United StatesHQ recorded Nov 6, 202651-200114 contacts →

Exact match

“Benthic is a global leader in offshore marine geotechnical investigation, survey, analysis and design.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchSingaporeHQ recorded Nov 6, 2026201-500105 contacts →

Exact match

“EGS is a leading international group of companies with offices in Europe, Americas, Asia and Australia.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchAmsterdam, NetherlandsHQ recorded Nov 6, 202651-200103 contacts →

Exact match

“Deep is an innovative survey company founded in and ever since headquartered in Amsterdam, The Netherlands.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchСанкт-петербург, RussiaHQ recorded Nov 6, 2026201-50093 contacts →

Exact match

“«Фертоинг» - современная, быстро развивающаяся инженерная компания, выполняющая большой объем работ в области комплексных морских изысканий, навигационно-гидрографического и…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact match高雄, TaiwanHQ recorded Nov 6, 202651-20081 contacts →

Exact match

“Dragon Geosciences is a leading provider of customized surveying solutions for offshore renewable energy, nearshore construction, and oil and gas infrastructures.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchKuala Lumpur, MalaysiaHQ recorded Nov 6, 202651-20072 contacts →

Exact match

“Ogeo Survey is specialize in providing a wide range of survey services particularly in support of Offshore Marine and Oil & Gas Exploration and Production industries.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchVictoria, BC, CanadaHQ recorded Nov 6, 202651-20071 contacts →

Exact match

“We've had fifty years of experience manufacturing high performance oceanographic and hydrographic equipment.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchZola Predosa, ItalyHQ recorded Nov 6, 202651-20071 contacts →

Exact match

“We turn knowledge and technology into lasting value.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchDenmarkHQ recorded Nov 6, 202651-20070 contacts →

Exact match

“Northern Survey can provide the platform to carrying out all kind of offshore-jobs.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchNavi Mumai, IndiaHQ recorded Nov 6, 2026201-50069 contacts →

Exact match

“Geoservices Maritime Pvt.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchFalun, SwedenHQ recorded Nov 6, 202651-20067 contacts →

Exact match

“Dykarbete - 3D Multibeam Ekolodning - ROV Undervattensrobot - Sugmuddring - 3D Undervattensfotogrammetri - 3D scanning av vattenfyllda tunnlar Kontakta oss gärna för en…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchSisli, TürkiyeHQ recorded Nov 6, 202611-5055 contacts →

Exact match

“DenAr Ocean Engineering Services SA was founded in 2007 and its headquarter is in Istanbul.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchKervignac, FranceHQ recorded Nov 6, 202611-5054 contacts →

Exact match

“Hydroconsult is a recognized actor in worldwide Hydrographic and Geophysical Survey's assistance and Marine Consulting, with 20 years experience.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchNorwood, NJ, United StatesHQ recorded Nov 6, 202651-20051 contacts →

Exact match

“Alpine are experts in acquiring, analyzing, and interpreting data from marine offshore, nearshore, and freshwater environments.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchSão Paulo, BrazilHQ recorded Nov 6, 202611-5048 contacts →

Exact match

“Brazilian company - Environmental Consultancy, Services and Projects:| Inland fresh-waters | Estuaries | Coastal Waters | Oceanic waters | We act as a group, divided into three…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchVinkovci, CroatiaHQ recorded Nov 6, 202651-20047 contacts →

Exact match

“Hidrocibalae is a hydrographic data processing company that supports clients throughout every phase of a project by providing relevant experts and customized data processing…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchCork, IrelandHQ recorded Nov 6, 202651-20046 contacts →

Exact match

“We are committed to helping clients unlock the benefits of cutting-edge geo-data in support of the development of offshore energy.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 765 hydrographic survey services worldwide

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Hydrographic survey services worldwide at a glance

As of Nov 6, 2026
27.5%Verified-email coverage
12.7Average contacts per company
1-10Median size (employees)
1.2%Largest-city concentration · Navi Mumbai
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
431
11-50
234
51-200
69
201-500
16
501-1,000
3
1,001-5,000
1
10001+
2

Email recency is reported on each country list linked below.

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.
Coverage
Every country. Country and city lists for hydrographic survey services are linked below.
What qualifies
Company records worldwide whose business descriptions match “hydrographic survey services” 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. 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 2,660 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.

Hydrographic survey services by location

6 lists · largest first

Every Hydrographic survey services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 “hydrographic survey services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many hydrographic survey services are there worldwide?

RevenueBase identified 765 company matches for hydrographic survey services worldwide 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?

Shearwater Geoservices tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most hydrographic survey services?

The United States leads with 100 companies, followed by the United Kingdom (59) and Australia (37). Every hydrographic survey services list by country and city is linked on this page.

Which city has the most hydrographic survey services?

Navi Mumbai leads with 9 company records, followed by Rio De Janeiro (9) and Istanbul (7).

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 2,660 professional contacts with verified work emails tracked across these 765 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.

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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.