Company lists · Data refreshed September 2026
Top 25 Hydrographic survey companies worldwide
RevenueBase identified 701 hydrographic survey companies worldwide as of September 2026 and tracks 8,461 professional contacts across them, including 2,169 with verified work emails. The United States is the largest market and Istanbul the largest hub.
This list covers hydrographic survey companies worldwide, 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. Country and city lists for hydrographic survey companies follow the table.
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 hydrographic survey companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 623 contacts → | ||||
Partial evidence “ANINDYA is an independent surveying company that provides quality and quantity superintending service for the coal and minerals industry, the oil and gas sector as well as marine…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 545 contacts → | ||||
Partial evidence “Gardline is a best-in-class provider of geophysical, geotechnical and environmental marine surveys.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 381 contacts → | ||||
Partial evidence “Headquartered in the UAE, Horizon Geosciences provide marine survey and geotechnical services to an array of clients around the world.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 374 contacts → | ||||
Strong evidence “GEOxyz is an international maritime data company specialized in hydrographic, geophysical, geotechnical and topographical surveys, site investigations, renewable energy support…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 213 contacts → | ||||
Indirect evidence “We collect and process information to visualise the conditions of the seabed.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 173 contacts → | ||||
Indirect evidence “Baggerbedrijf De Boer - Dutch Dredging is a medium size dredging company, based in Sliedrecht in the Netherlands.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 146 contacts → | ||||
Partial evidence “G-TEC provides marine and land based geophysical surveys.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 137 contacts → | ||||
Partial evidence “Pageo is a leading survey company providing survey, positioning and subsea services to the offshore oil & gas and offshore construction industries.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 126 contacts → | ||||
Partial evidence “QPS is a software design company specialised in Hydrographic and Maritime applications.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 122 contacts → | ||||
Indirect evidence “Teledyne RESON provides a range of high quality underwater acoustic hardware and software solutions, including recognized brands such as SeaBat Multibeam Echosounder and Teledyne…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 107 contacts → | ||||
Partial evidence “TDI-Brooks is a 27-year-old research and service company specializing in geotechnical and offshore survey projects; multi-disciplinary oceanographic and environmental projects…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 95 contacts → | ||||
Partial evidence “Deep is an innovative survey company founded in and ever since headquartered in Amsterdam, The Netherlands.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 84 contacts → | ||||
Indirect evidence “EGS is a leading international group of companies with offices in Europe, Americas, Asia and Australia.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 75 contacts → | ||||
Indirect evidence “«Фертоинг» - современная, быстро развивающаяся инженерная компания, выполняющая большой объем работ в области комплексных морских изысканий, навигационно-гидрографического и…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 74 contacts → | ||||
Partial evidence “We've had fifty years of experience manufacturing high performance oceanographic and hydrographic equipment.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 74 contacts → | ||||
Partial evidence “Dragon Geosciences is a leading provider of customized surveying solutions for offshore renewable energy, nearshore construction, and oil and gas infrastructures.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 68 contacts → | ||||
Partial evidence “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.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 64 contacts → | ||||
Indirect evidence “We turn knowledge and technology into lasting value.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 61 contacts → | ||||
Partial evidence “To invest in a latest technology in order to fulfill efficiency and productivity to the fullest and provide the best quality survey services to the clients.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 56 contacts → | ||||
Indirect evidence “Dykarbete - 3D Multibeam Ekolodning - ROV Undervattensrobot - Sugmuddring - 3D Undervattensfotogrammetri - 3D scanning av vattenfyllda tunnlar Kontakta oss gärna för en…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 55 contacts → | ||||
Indirect evidence “Alpine are experts in acquiring, analyzing, and interpreting data from marine offshore, nearshore, and freshwater environments.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 52 contacts → | ||||
Indirect evidence “Heron Construction is a family owned and operated marine construction company that specialises in using backhoe dredgers for marine dredging.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 49 contacts → | ||||
Strong evidence “Hydroconsult is a recognized actor in worldwide Hydrographic and Geophysical Survey's assistance and Marine Consulting, with 20 years experience.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 48 contacts → | ||||
Partial evidence “PT Hydrocore an Indonesian company was established in 2006, have many experiences in geotechnical work (including Resistivity Survey) in Indonesia.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 47 contacts → | ||||
Partial evidence “Hidrocibalae is a hydrographic data processing company that supports clients throughout every phase of a project by providing relevant experts and customized data processing…” 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: hydrographic survey companies. 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 hydrographic survey companies.
- Partial evidence
- Its own public description names part of hydrographic survey companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name hydrographic survey companies. 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 701 hydrographic survey companies worldwide
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Hydrographic survey companies worldwide at a glance
As of Sep 20, 2026Companies by employee count
Email recency is reported on each country list linked below.
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 hydrographic survey companies, 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.
- Coverage
- Every country. Country and city lists for hydrographic survey companies are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “hydrographic survey companies”. 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 hydrographic survey companies), 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 hydrographic survey companies, and records with no verified work email.
- 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, 2,169 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.
Hydrographic survey companies by location
4 lists · largest firstEvery Hydrographic survey companies 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 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 hydrographic survey companies, 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 hydrographic survey companies are there worldwide?
RevenueBase identified 701 hydrographic survey companies worldwide 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?
Pt. Anindya Wiraputra Konsult, headquartered in Pademangan Timur, tops this list with the largest team on record.
Which country has the most hydrographic survey companies?
The United States leads with 88 companies, followed by the United Kingdom (76) and Australia (38). Every hydrographic survey companies list by country and city is linked on this page.
Which city has the most hydrographic survey companies?
Istanbul leads with 8 headquartered companies, followed by Rio De Janeiro (8) and Houston (6).
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 2,169 verified decision-maker contacts tracked across these 701 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.