Company lists · Data refreshed October 2026

Top 25 Deepwater inspection contractors worldwide

Name: Deepwater inspection contractors worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 11, 2026 6,041 companies tracked

RevenueBase identified 6,041 company matches for deepwater inspection contractors worldwide as of October 2026 and tracks 177,229 professional contacts across them, including 31,791 with verified work emails. The United States is the largest market and Houston the largest hub.

This list covers company matches for deepwater inspection contractors 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 October 11, 2026. Country and city lists for deepwater inspection contractors 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 Oct 11, 2026 How this list was built

6,041Companies

177,229Contacts tracked

31,791Verified emails

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The 25 largest deepwater inspection contractors worldwide

Ranked by team size

Top 25 of 6,041 company matches for deepwater inspection contractors worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 11, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Valaris Limited	Exact match	Houston, TX, United StatesHQ recorded Oct 11, 2026	5,001-10,000	3,263 contacts →
	Exact match “We Are Valaris With decades of expertise and strategic commitment built on efficiency, capability and ingenuity, our sights are continually set toward a future built with purpose…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
2	Mistras Group	Exact match	Princeton Junction, NJ, United StatesHQ recorded Oct 11, 2026	5,001-10,000	2,903 contacts →
	Exact match “MISTRAS Group, Inc.(NYSE: MG) is a global leader in technology-enabled industrial asset integrity solutions, serving critical industries including oil & gas, aerospace & defense…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
3	ROSEN	Exact match	Stans, SwitzerlandHQ recorded Oct 11, 2026	1,001-5,000	2,830 contacts →
	Exact match “WE ARE EMPOWERED BY TECHNOLOGY For us, technology is the driving force of progress to ensure a more sustainable future for our customers, their assets and society.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
4	Estrutural	Exact match	Porto Alegre, BrazilHQ recorded Oct 11, 2026	1,001-5,000	2,795 contacts →
	Exact match “Quem somos: Somos uma empresa nacional, com mais de 30 anos no segmento da construção, montagem e manutenção industrial.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
5	Allseas	Exact match	Châtel-saint-denis, United StatesHQ recorded Oct 11, 2026	1,001-5,000	2,765 contacts →
	Exact match “Allseas is a world-leading contractor in the offshore energy market.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
6	OCYAN	Exact match	Rio De Janeiro, BrazilHQ recorded Oct 11, 2026	1,001-5,000	2,328 contacts →
	Exact match “A OCYAN atua há décadas na prestação de serviços para o setor de óleo e gás upstream, estruturando suas operações em três frentes de atuação.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
7	Free Lancer	Exact match	BrazilHQ recorded Oct 11, 2026	n/a	2,271 contacts →
	Exact match “Rov company.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
8	ELFE	Exact match	Macaé, BrazilHQ recorded Oct 11, 2026	1,001-5,000	2,006 contacts →
	Exact match “No mercado há mais de duas décadas, a Axia é uma empresa nacional com atuação em operação e manutenção industrial.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
9	Grupo CBO	Exact match	Niterói, BrazilHQ recorded Oct 11, 2026	1,001-5,000	1,972 contacts →
	Exact match “O Grupo CBO é uma das maiores empresas de apoio marítimo do Brasil.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
10	Groupe Ponticelli Frères	Exact match	FranceHQ recorded Oct 11, 2026	5,001-10,000	1,900 contacts →
	Exact match “The Ponticelli Frères Group is one of the main European service suppliers to companies in the energy (oil and gas, nuclear, renewable energy), industrial (chemical, steelworks…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
11	Tp-Otc	Exact match	Çankaya, TürkiyeHQ recorded Oct 11, 2026	501-1,000	1,766 contacts →
	Exact match “TP-OTC is established to provide all engineering and technology services for offshore operations in oil and gas industry.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
12	Pt. Surveyor Indonesia	Exact match	IndonesiaHQ recorded Oct 11, 2026	1,001-5,000	1,721 contacts →
	Exact match “Surveyor Indonesia was incepted on 1 August 1991.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
13	Deepocean	Exact match	Oslo, NorwayHQ recorded Oct 11, 2026	1,001-5,000	1,536 contacts →
	Exact match “DeepOcean is a technology-driven, independent solution provider in the ocean space.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
14	Foresea	Exact match	United StatesHQ recorded Oct 11, 2026	1,001-5,000	1,501 contacts →
	Exact match “Somos uma empresa focada em oferecer soluções em Perfuração Offshore, com expertise e excelência em afretamento e operação de sondas para águas ultraprofundas.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
15	Applus OIL And GAS	Exact match	Madrid, ItalyHQ recorded Oct 11, 2026	10001+	1,473 contacts →
	Exact match “Applus+ is globally recognized across all phases of the oil and gas industry, including upstream, midstream, and downstream, both on land and at sea.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
16	CCC Underwater Engineering S.A.L	Exact match	Abu Dhabi, United Arab EmiratesHQ recorded Oct 11, 2026	201-500	1,314 contacts →
	Exact match “(Underwater Engineering) S.A.L was established in 1976.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
17	Aries Marine And Engineering Services	Exact match	United Arab EmiratesHQ recorded Oct 11, 2026	1,001-5,000	1,257 contacts →
	Exact match “Aries is the largest Engineering, Inspection & Maintenance firm in the Middle East.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
18	Hertel	Exact match	Rotterdam, NetherlandsHQ recorded Oct 11, 2026	5,001-10,000	1,230 contacts →
	Exact match “Hertel is a leading international, multi-disciplinary, industrial services company.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
19	Madina WLL	Exact match	Doha, QatarHQ recorded Oct 11, 2026	1,001-5,000	1,180 contacts →
	Exact match “MADINA GROUP comprises of 5 standalone companies- Madina Group W.L.L, Qatar International Safety Centre, Qatar Inspection Services, Severn Glocon Qatar and Madina Oryx Engineering…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
20	Irisndt	Exact match	Edmonton, AB, CanadaHQ recorded Oct 11, 2026	10001+	1,170 contacts →
	Exact match “One of the largest independent Asset Integrity companies.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
21	ABS Group	Exact match	Spring, TX, United StatesHQ recorded Oct 11, 2026	1,001-5,000	1,152 contacts →
	Exact match “ABS Group of Companies, provides data-driven risk and reliability solutions and technical services that help clients confirm the safety, integrity, quality and efficiency of…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
22	Tuboscope	Exact match	Houston, TX, United StatesHQ recorded Oct 11, 2026	10001+	1,064 contacts →
	Exact match “For more than 85 years, Tuboscope™ has provided the industry with tubular expertise and an integrated suite of value-added solutions.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
23	Micoperi SRL	Exact match	Ravenna, ItalyHQ recorded Oct 11, 2026	201-500	898 contacts →
	Exact match “MICOPERI has been active in the marine sector since 1946 when the company was incorporated as a salvage company to free the shipping routes from vessels sunk during the Second…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
24	NDT Global	Exact match	Québec, QC, CanadaHQ recorded Oct 11, 2026	1,001-5,000	841 contacts →
	Exact match “NDT Global is the leading provider of inline diagnostic solutions, advanced data insights, subsea inspection, and integrity management services that safeguard energy-sector…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
25	Tulsa Inspection Resources, LLC	Exact match	Tulsa, OK, United StatesHQ recorded Oct 11, 2026	1,001-5,000	813 contacts →
	Exact match “Core capabilities include: Inspection Services (Chief, CWI, NACE/AMPP, Utility, Environmental, Safety, Poly, etc), Non-Destructive Examination (Ultrasonic Testing (UT), Phased…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “deepwater inspection contractors”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 6,041 deepwater inspection contractors worldwide

See the full list, filter by size, metro and specialty, and access 31,791 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Deepwater inspection contractors worldwide at a glance

As of Oct 11, 2026

17.9%Verified-email coverage

29.3Average contacts per company

11-50Median size (employees)

2.5%Largest-city concentration · Houston

Oct 11, 2026Page data refreshed

Companies by employee count

1-10

2,232

11-50

2,223

51-200

988

201-500

348

501-1,000

111

1,001-5,000

5,001-10,000

10001+

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 deepwater inspection contractors are linked below.
What qualifies: Company records worldwide whose business descriptions match “deepwater inspection contractors” 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 31,791 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 October 11, 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.

Deepwater inspection contractors by location

41 lists · largest first

Every Deepwater inspection contractors list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 “deepwater inspection contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many deepwater inspection contractors are there worldwide?

RevenueBase identified 6,041 company matches for deepwater inspection contractors worldwide as of October 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?

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

Which country has the most deepwater inspection contractors?

The United States leads with 859 companies, followed by Brazil (441) and the United Kingdom (440). Every deepwater inspection contractors list by country and city is linked on this page.

Which city has the most deepwater inspection contractors?

Houston leads with 154 company records, followed by Singapore (110) and Dubai (84).

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 31,791 professional contacts with verified work emails tracked across these 6,041 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 October 11, 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.