Company lists · Data refreshed September 2026

Top 25 Marine surveyors worldwide

Name: Marine surveyors worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 4,477 companies tracked

RevenueBase identified 4,477 marine surveyors worldwide as of September 2026 and tracks 51,342 professional contacts across them, including 10,332 with verified work emails. The United States is the largest market and Singapore the largest hub.

This list covers marine surveyors 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 marine surveyors 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

4,477Companies

51,342Contacts tracked

10,332Verified emails

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The 25 largest marine surveyors worldwide

Ranked by team size

Top 25 of 4,477 marine surveyors worldwide, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to marine surveyors: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	American Bureau Of Shipping ABS	Indirect evidence	Spring, TX, United StatesHQ checked Sep 20, 2026	5,001-10,000	4,335 contacts →
	Indirect evidence “Since its founding in 1862, ABS has been committed to setting standards for safety and excellence as one of the world’s leading ship classification organizations.” Source: RevenueBase Database · checked Sep 20, 2026
2	Free Lancer	Indirect evidence	BrazilHQ checked Sep 20, 2026	n/a	2,224 contacts →
	Indirect evidence “Rov company.” Source: RevenueBase Database · checked Sep 20, 2026
3	Aries Marine And Engineering Services	Indirect evidence	United Arab EmiratesHQ checked Sep 20, 2026	1,001-5,000	1,216 contacts →
	Indirect evidence “Aries is the largest Engineering, Inspection & Maintenance firm in the Middle East.” Source: RevenueBase Database · checked Sep 20, 2026
4	BKI Biro Klasifikasi Indonesia	Indirect evidence	Jakarta Utara, IndonesiaHQ checked Sep 20, 2026	501-1,000	905 contacts →
	Indirect evidence “PT.” Source: RevenueBase Database · checked Sep 20, 2026
5	Indian Register Of Shipping	Indirect evidence	Mumbai, IndiaHQ checked Sep 20, 2026	501-1,000	883 contacts →
	Indirect evidence “Indian Register of Shipping (IRClass) is an international ship classification society providing ship classification and certification as well as technical inspection services.” Source: RevenueBase Database · checked Sep 20, 2026
6	Pt. Anindya Wiraputra Konsult	Partial evidence	Jakarta, IndonesiaHQ checked Sep 20, 2026	1,001-5,000	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, 2026
7	Gardline Limited	Partial evidence	Great Yarmouth, United KingdomHQ checked Sep 20, 2026	501-1,000	545 contacts →
	Partial evidence “Gardline is a best-in-class provider of geophysical, geotechnical and environmental marine surveys.” Source: RevenueBase Database · checked Sep 20, 2026
8	Bureau Veritas Marine & Offshore	Partial evidence	Paris, FranceHQ checked Sep 20, 2026	10001+	456 contacts →
	Partial evidence “At Bureau Veritas Marine & Offshore, we share a drive to shape a better maritime world for future generations.” Source: RevenueBase Database · checked Sep 20, 2026
9	Hydrodive Group	Partial evidence	Lagos, NigeriaHQ checked Sep 20, 2026	201-500	409 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
10	Coastal Marine Construction & Engineering LTD	Partial evidence	Mira Bhayander, IndiaHQ checked Sep 20, 2026	201-500	403 contacts →
	Partial evidence “COMACOE - Coastal Marine Construction & Engineering Ltd is an experienced marine services contractor with operations in multiple geographies offering a range of service over the…” Source: RevenueBase Database · checked Sep 20, 2026
11	Horizon Geosciences	Partial evidence	Sharjah, United Arab EmiratesHQ checked Sep 20, 2026	201-500	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, 2026
12	Geoxyz	Partial evidence	Zwevegem, BelgiumHQ checked Sep 20, 2026	501-1,000	374 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
13	Alphard Maritime Group	Partial evidence	Mumbai, IndiaHQ checked Sep 20, 2026	201-500	332 contacts →
	Partial evidence “Since our founding in 2009, we have been dedicated to providing expert and cost-effective maritime solutions.” Source: RevenueBase Database · checked Sep 20, 2026
14	Pt. Tribhakti Inspektama	Indirect evidence	Jakarta Utara, IndonesiaHQ checked Sep 20, 2026	201-500	321 contacts →
	Indirect evidence “PT Tribhakti Inspektama was established in 1989.” Source: RevenueBase Database · checked Sep 20, 2026
15	Imia, LLC	Partial evidence	Chesapeake, VA, United StatesHQ checked Sep 20, 2026	1,001-5,000	293 contacts →
	Partial evidence “Founded in 1985 and a distinguished part of ARMADA Parent Inc, established itself as a premier marine preservation company, delivering an extensive suite of services to…” Source: RevenueBase Database · checked Sep 20, 2026
16	Q.E.D. Systems, INC	Indirect evidence	Virginia Beach, VA, United StatesHQ checked Sep 20, 2026	501-1,000	284 contacts →
	Indirect evidence “Quod Erat Demonstrandum (QED) – “That which has been demonstrated or proven” – QED Systems Inc.” Source: RevenueBase Database · checked Sep 20, 2026
17	Australian Offshore Solutions PTY LTD	Partial evidence	Applecross, AustraliaHQ checked Sep 20, 2026	501-1,000	273 contacts →
	Partial evidence “Australian Offshore Solutions Australian Offshore Solutions offers a diverse range of specialised marine services to the offshore oil and gas and construction industries.” Source: RevenueBase Database · checked Sep 20, 2026
18	Safeen Subsea	Indirect evidence	Abu Dhabi, United Arab EmiratesHQ checked Sep 20, 2026	201-500	267 contacts →
	Indirect evidence “SAFEEN Survey & Subsea Services is a premier provider of integrated offshore survey, diving and subsea engineering solutions across the UAE, GCC and globally.” Source: RevenueBase Database · checked Sep 20, 2026
19	Namdock	Indirect evidence	Walvis Bay, NamibiaHQ checked Sep 20, 2026	501-1,000	240 contacts →
	Indirect evidence “Strategically situated in Walvis Bay Namibia on the western coast of Africa.” Source: RevenueBase Database · checked Sep 20, 2026
20	Interocean Group	Indirect evidence	New Delhi, IndiaHQ checked Sep 20, 2026	201-500	235 contacts →
	Indirect evidence “The Interocean Group was founded by Captain Kailash C.” Source: RevenueBase Database · checked Sep 20, 2026
21	VMS Group A S	Indirect evidence	Frederikshavn, DenmarkHQ checked Sep 20, 2026	201-500	230 contacts →
	Indirect evidence “VMS Group is now part of Hoyer VMS Group.” Source: RevenueBase Database · checked Sep 20, 2026
22	MMT	Indirect evidence	Västra Frölunda, SwedenHQ checked Sep 20, 2026	201-500	213 contacts →
	Indirect evidence “We collect and process information to visualise the conditions of the seabed.” Source: RevenueBase Database · checked Sep 20, 2026
23	SKF Marine	Partial evidence	Hamburg, GermanyHQ checked Sep 20, 2026	201-500	197 contacts →
	Partial evidence “SKF Marine is a global family with more than 70 years’ experience in the maritime industry.” Source: RevenueBase Database · checked Sep 20, 2026
24	CS Offshore	Partial evidence	Dubai, United Arab EmiratesHQ checked Sep 20, 2026	51-200	196 contacts →
	Partial evidence “OVER A DECADE OF EXCELLENCE IN MARINE & OFFSHORE INDUSTRY CS Offshore is one of the world’s service providers for Marine & Offshore Industry, incorporated in 2008 in UAE with ABS…” Source: RevenueBase Database · checked Sep 20, 2026
25	China Classification Society	Indirect evidence	北京市, ChinaHQ checked Sep 20, 2026	1,001-5,000	190 contacts →
	Indirect evidence “Founded in 1956, China Classification Society (CCS) is headquartered in Beijing and is a full member of the International Association of Classification Societies (IACS).” Source: RevenueBase Database · checked Sep 20, 2026

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: marine surveyors. 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 marine surveyors.
Partial evidence: Its own public description names part of marine surveyors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name marine surveyors. 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 4,477 marine surveyors worldwide

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Marine surveyors worldwide at a glance

As of Sep 20, 2026

20.1%Verified-email coverage

11.5Average contacts per company

1-10Median size (employees)

2.2%Largest-city concentration · Singapore

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

2,552

11-50

1,331

51-200

413

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 marine surveyors, 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 marine surveyors are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “marine surveyors”. 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 marine surveyors), 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 marine surveyors, 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, 10,332 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.

Marine surveyors by location

23 lists · largest first

Every Marine surveyors 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 marine surveyors, 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 marine surveyors are there worldwide?

RevenueBase identified 4,477 marine surveyors 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?

American Bureau Of Shipping ABS, headquartered in Spring, tops this list with the largest team on record.

Which country has the most marine surveyors?

The United States leads with 493 companies, followed by the United Kingdom (423) and India (212). Every marine surveyors list by country and city is linked on this page.

Which city has the most marine surveyors?

Singapore leads with 99 headquartered companies, followed by Dubai (65) and Istanbul (59).

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 10,332 verified decision-maker contacts tracked across these 4,477 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.