Company lists · Data refreshed September 2026

Top 25 Underwater mapping technology companies worldwide

RevenueBase identified 1,122 underwater mapping technology companies worldwide as of September 2026 and tracks 19,048 professional contacts across them, including 6,064 with verified work emails. The United States is the largest market and Houston the largest hub.

This list covers underwater mapping 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 22, 2026. Country and city lists for underwater mapping 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 22, 2026 86% judged on-target in blind review
1,122Companies
19,048Contacts tracked
6,064Verified emails
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The 25 largest underwater mapping technology companies worldwide

Ranked by team size
Top 25 of 1,122 underwater mapping technology companies worldwide, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to underwater mapping 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
1Partial evidenceLaksevåg, NorwayHQ checked Sep 22, 20261,001-5,0001,031 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 22, 2026
2Indirect evidenceGreat Yarmouth, United KingdomHQ checked Sep 22, 2026501-1,000545 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 22, 2026
3Indirect evidenceSharjah, United Arab EmiratesHQ checked Sep 22, 2026201-500381 contacts →

Indirect 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 22, 2026
4Indirect evidenceZwevegem, BelgiumHQ checked Sep 22, 2026501-1,000374 contacts →

Indirect 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 22, 2026
5Partial evidencePalo Alto, United StatesHQ checked Sep 22, 2026201-500350 contacts →

Partial evidence

“Exodigo is the leading underground mapping solution for non-intrusive discovery.”

Source: RevenueBase Database · checked Sep 22, 2026
6Indirect evidenceUnited StatesHQ checked Sep 22, 2026201-500313 contacts →

Indirect evidence

“We are a subsea solutions company built on decades of experience across every major basin.”

Source: RevenueBase Database · checked Sep 22, 2026
7Partial evidenceMount Pearl Park, NL, CanadaHQ checked Sep 22, 2026501-1,000306 contacts →

Partial evidence

“Kraken Robotics is a global marine technology company transforming subsea intelligence through advanced sensors, software, and integrated systems.”

Source: RevenueBase Database · checked Sep 22, 2026
8Strong evidenceEsbjerg V, FranceHQ checked Sep 22, 2026201-500290 contacts →

Strong evidence

“The MacArtney Group supplies products and engineering solutions to the worldwide Underwater Technology Market.”

Source: RevenueBase Database · checked Sep 22, 2026
9Partial evidenceYateley, United KingdomHQ checked Sep 22, 2026201-500273 contacts →

Partial evidence

Underwater innovations for energy, defence and science.”

Source: RevenueBase Database · checked Sep 22, 2026
10Indirect evidenceGlasgow, United KingdomHQ checked Sep 22, 2026201-500241 contacts →

Indirect evidence

“Sulmara is a global seabed intelligence company, capturing and interpreting high-quality subsea data to enable smarter offshore decisions.”

Source: RevenueBase Database · checked Sep 22, 2026
11Indirect evidenceMassarosa, ItalyHQ checked Sep 22, 202651-200218 contacts →

Indirect evidence

“WHERE DO WE START?”

Source: RevenueBase Database · checked Sep 22, 2026
12Indirect evidenceVästra Frölunda, SwedenHQ checked Sep 22, 2026201-500213 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 22, 2026
13Indirect evidenceBergen, NorwayHQ checked Sep 22, 2026501-1,000194 contacts →

Indirect evidence

“SeaBird Exploration is a wholly owned subsidiary of SED Energy Holdings Plc, which is listed on Euronext Oslo Børs.”

Source: RevenueBase Database · checked Sep 22, 2026
14Partial evidenceChennai, IndiaHQ checked Sep 22, 202651-200186 contacts →

Partial evidence

“Planys is an Indian deep tech start-up creating a paradigm shift in the underwater inspection industry and maritime warfare.”

Source: RevenueBase Database · checked Sep 22, 2026
15Indirect evidenceLargo, United StatesHQ checked Sep 22, 2026201-500170 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 22, 2026
16Partial evidenceJakarta Selatan, IndonesiaHQ checked Sep 22, 202651-200152 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 22, 2026
17Partial evidenceCartagena, United StatesHQ checked Sep 22, 202651-200150 contacts →

Partial evidence

“SAES, as a company specialised in underwater acoustics, has 100 highly skilled engineers and scientists and over 25 years’ experience in sonar systems, on-board systems, mine…”

Source: RevenueBase Database · checked Sep 22, 2026
18Partial evidenceRousset, FranceHQ checked Sep 22, 2026201-500139 contacts →

Partial evidence

“Founded in 2015, ALSEAMAR, a subsidiary of the ALCEN Group, develops, designs, operates and maintains high-performance underwater solutions that meet the requirements of…”

Source: RevenueBase Database · checked Sep 22, 2026
19Indirect evidenceJakarta Selatan, IndonesiaHQ checked Sep 22, 202651-200133 contacts →

Indirect evidence

“PT.”

Source: RevenueBase Database · checked Sep 22, 2026
20Indirect evidenceLondon, United KingdomHQ checked Sep 22, 202651-200132 contacts →

Indirect evidence

“Founded in 2018 by a team of Navy veterans, Orca AI, a maritime tech startup, empowers shipping companies to enhance their operational safety, efficiency, and sustainability…”

Source: RevenueBase Database · checked Sep 22, 2026
21Indirect evidenceZeist, NetherlandsHQ checked Sep 22, 202651-200126 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 22, 2026
22Partial evidenceSlangerup, DenmarkHQ checked Sep 22, 2026201-500122 contacts →

Partial 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 22, 2026
23Indirect evidenceHouston, TX, United StatesHQ checked Sep 22, 202651-200115 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 22, 2026
24Indirect evidenceCollege Station, TX, United StatesHQ checked Sep 22, 202651-200107 contacts →

Indirect 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 22, 2026
25Partial evidenceTrondheim, NorwayHQ checked Sep 22, 202651-200105 contacts →

Partial evidence

“Norbit Subsea is a supplier of underwater instrumentation and communication solutions.”

Source: RevenueBase Database · checked Sep 22, 2026

Showing 25 of 1,122 underwater mapping technology companies worldwide

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Underwater mapping technology companies worldwide at a glance

As of Sep 22, 2026
31.8%Verified-email coverage
17.0Average contacts per company
1-10Median size (employees)
1.2%Largest-city concentration · Houston
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
580
11-50
367
51-200
129
201-500
27
501-1,000
6
1,001-5,000
7
5,001-10,000
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 underwater mapping 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 underwater mapping technology companies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “underwater mapping 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 underwater mapping 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 underwater mapping 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, 6,064 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 22, 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.

Underwater mapping technology companies by location

9 lists · largest first

Every Underwater mapping 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 underwater mapping 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 underwater mapping technology companies are there worldwide?

RevenueBase identified 1,122 underwater mapping 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?

Shearwater Geoservices, headquartered in Laksevag, tops this list with the largest team on record.

Which country has the most underwater mapping technology companies?

The United States leads with 186 companies, followed by the United Kingdom (107) and Canada (61). Every underwater mapping technology companies list by country and city is linked on this page.

Which city has the most underwater mapping technology companies?

Houston leads with 13 headquartered companies, followed by Aberdeen (10) and Oslo (10).

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 6,064 verified decision-maker contacts tracked across these 1,122 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 22, 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.