Company lists · Data refreshed September 2026

Top 25 Ocean survey technology companies worldwide

RevenueBase identified 2,573 ocean survey technology companies worldwide as of September 2026 and tracks 64,151 professional contacts across them, including 16,381 with verified work emails. The United States is the largest market and Singapore the largest hub.

This list covers ocean survey technology 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 ocean survey technology 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 20, 2026 86% judged on-target in blind review
2,573Companies
64,151Contacts tracked
16,381Verified emails
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The 25 largest ocean survey technology companies worldwide

Ranked by team size
Top 25 of 2,573 ocean survey technology companies worldwide, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to ocean survey technology companies: 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 evidenceKongsberg, NorwayHQ checked Sep 20, 20265,001-10,0005,555 contacts →

Indirect evidence

“Kongsberg Maritime is your trusted partner in navigating the complexities of the maritime industry.”

Source: RevenueBase Database · checked Sep 20, 2026
2Indirect evidenceBergen, NorwayHQ checked Sep 20, 20265,001-10,0002,942 contacts →

Indirect evidence

“With a multi-national workforce of over 5,700 personnel, DOF is an international group of companies which owns and operates a fleet of modern offshore/subsea vessels, with an…”

Source: RevenueBase Database · checked Sep 20, 2026
3Indirect evidenceBrazilHQ checked Sep 20, 2026n/a2,224 contacts →

Indirect evidence

“Rov company.”

Source: RevenueBase Database · checked Sep 20, 2026
4Partial evidenceMacaé - Rj, BrazilHQ checked Sep 20, 20261,001-5,0002,213 contacts →

Partial evidence

“OCEÂNICA is a Brazilian company dedicated to providing services and engineering technology solutions for companies with underwater activities”

Source: RevenueBase Database · checked Sep 20, 2026
5Indirect evidenceNiterói, BrazilHQ checked Sep 20, 20261,001-5,0001,847 contacts →

Indirect evidence

“O Grupo CBO é uma das maiores empresas de apoio marítimo do Brasil.”

Source: RevenueBase Database · checked Sep 20, 2026
6Partial evidenceKinderdijk, NetherlandsHQ checked Sep 20, 20261,001-5,0001,712 contacts →

Partial evidence

“Royal IHC is a leading supplier of maritime technology and expert craftsmanship.”

Source: RevenueBase Database · checked Sep 20, 2026
7Strong evidenceOslo, NorwayHQ checked Sep 20, 20261,001-5,0001,375 contacts →

Strong evidence

“DeepOcean is a technology-driven, independent solution provider in the ocean space.”

Source: RevenueBase Database · checked Sep 20, 2026
8Indirect evidenceAbu Dhabi, United Arab EmiratesHQ checked Sep 20, 2026201-5001,279 contacts →

Indirect evidence

“(Underwater Engineering) S.A.L was established in 1976.”

Source: RevenueBase Database · checked Sep 20, 2026
9Partial evidenceLaksevåg, NorwayHQ checked Sep 20, 20261,001-5,0001,031 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 20, 2026
10Indirect evidenceHouston, TX, United StatesHQ checked Sep 20, 2026501-1,000834 contacts →

Indirect evidence

“Headquartered in Houston, Texas, Geokinetics is one of the world’s largest independent land and seafloor geophysical companies.”

Source: RevenueBase Database · checked Sep 20, 2026
11Strong evidenceLondon, United KingdomHQ checked Sep 20, 2026501-1,000714 contacts →

Strong evidence

Ocean Infinity is a technology-driven company transforming how ocean operations are carried out.”

Source: RevenueBase Database · checked Sep 20, 2026
12Partial evidenceHorten, NorwayHQ checked Sep 20, 20261,001-5,000638 contacts →

Partial evidence

“In a constantly changing market environment, Kongsberg Discovery is serving the ocean space from the deepest sea to the outer space.”

Source: RevenueBase Database · checked Sep 20, 2026
13Indirect evidenceSharjah, United Arab EmiratesHQ checked Sep 20, 2026501-1,000618 contacts →

Indirect evidence

“Unique Group is a leading specialist and integrated engineering solutions provider across the global subsea, renewables, oil and gas, and defence industries.”

Source: RevenueBase Database · checked Sep 20, 2026
14Partial evidenceGreat Yarmouth, United KingdomHQ checked Sep 20, 2026501-1,000545 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 20, 2026
15Indirect evidenceHouston, TX, United StatesHQ checked Sep 20, 2026201-500521 contacts →

Indirect evidence

“SAExploration offers a full range of geophysical ground acquisition services from design, prospecting, drilling, recording and analysis of field quality, as well as mobilization…”

Source: RevenueBase Database · checked Sep 20, 2026
16Indirect evidenceAberdeen, United KingdomHQ checked Sep 20, 2026201-500490 contacts →

Indirect evidence

“UTEC, Acteon’s Geo-services business line, harnesses data to optimise designs, save time and maximise your project’s economic value by providing a holistic understanding of the…”

Source: RevenueBase Database · checked Sep 20, 2026
17Strong evidenceHaugesund, NorwayHQ checked Sep 20, 2026201-500454 contacts →

Strong evidence

“Reach Subsea ASA (“Reach Subsea”, “Reach” or “the Group”) is a prominent offshore contractor that offer high quality solutions and technology to clients in need of ocean data and…”

Source: RevenueBase Database · checked Sep 20, 2026
18Indirect evidence9001 St. Gallen, SwitzerlandHQ checked Sep 20, 2026201-500422 contacts →

Indirect evidence

“Geoquip Marine is a geotechnical data acquisition company safely delivering offshore geotechnical site investigations and engineering services to clients worldwide.”

Source: RevenueBase Database · checked Sep 20, 2026
19Partial evidenceLagos, NigeriaHQ checked Sep 20, 2026201-500409 contacts →

Partial evidence

“HydroDive provides a broad range of Marine Vessels, Air, Mixed Gas and Saturation Diving, ROV, AUV and Survey Services primarily to the offshore & inshore Petroleum Industry of…”

Source: RevenueBase Database · checked Sep 20, 2026
20Indirect evidenceDammam, Saudi ArabiaHQ checked Sep 20, 2026501-1,000404 contacts →

Indirect evidence

“This page is dedicated to Mermaid Subsea Saudi Arabia.”

Source: RevenueBase Database · checked Sep 20, 2026
21Partial evidenceBarrow-in-furness, United KingdomHQ checked Sep 20, 20261,001-5,000403 contacts →

Partial evidence

“Above, below and beyond the world’s oceans.”

Source: RevenueBase Database · checked Sep 20, 2026
22Partial evidenceSharjah, United Arab EmiratesHQ checked Sep 20, 2026201-500381 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, 2026
23Partial evidenceZwevegem, BelgiumHQ checked Sep 20, 2026501-1,000374 contacts →

Partial 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, 2026
24Indirect evidenceDordrecht, NetherlandsHQ checked Sep 20, 2026201-500364 contacts →

Indirect evidence

“N-Sea is an end-to-end subsea services provider.”

Source: RevenueBase Database · checked Sep 20, 2026
25Indirect evidenceJakarta, IndonesiaHQ checked Sep 20, 202651-200339 contacts →

Indirect evidence

“Java Offshore, established in 2010, is a leading independent Offshore Services Contractor providing a range of Geophysical, Geotechnical and Subsea related solutions to marine…”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 2,573 ocean survey technology companies worldwide

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Ocean survey technology companies worldwide at a glance

As of Sep 20, 2026
25.5%Verified-email coverage
24.9Average contacts per company
11-50Median size (employees)
1.4%Largest-city concentration · Singapore
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
1,246
11-50
867
51-200
325
201-500
86
501-1,000
18
1,001-5,000
18
5,001-10,000
5
10001+
1

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 ocean survey technology 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 ocean survey technology companies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “ocean survey technology 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 ocean survey technology 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 ocean survey technology 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, 16,381 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.

Ocean survey technology companies by location

18 lists · largest first

Every Ocean survey technology 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 ocean survey technology 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 ocean survey technology companies are there worldwide?

RevenueBase identified 2,573 ocean survey technology 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?

Kongsberg Maritime, headquartered in Kongsberg, tops this list with the largest team on record.

Which country has the most ocean survey technology companies?

The United States leads with 418 companies, followed by the United Kingdom (262) and Norway (119). Every ocean survey technology companies list by country and city is linked on this page.

Which city has the most ocean survey technology companies?

Singapore leads with 37 headquartered companies, followed by Houston (35) and Rio De Janeiro (34).

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 16,381 verified decision-maker contacts tracked across these 2,573 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.