Company lists · Data refreshed November 2026

Top 25 Underwater welding instruction companies worldwide

RevenueBase identified 302 company matches for underwater welding instruction companies worldwide as of November 2026 and tracks 2,093 professional contacts across them, including 215 with verified work emails. The United States is the largest market and Istanbul the largest hub.

This list covers company matches for underwater welding instruction companies 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 November 6, 2026. Country and city lists for underwater welding instruction companies 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 Nov 6, 2026 How this list was built
302Companies
2,093Contacts tracked
215Verified emails
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The 25 largest underwater welding instruction companies worldwide

Ranked by team size
Top 25 of 302 company matches for underwater welding instruction companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchMiami, NS, United StatesHQ recorded Nov 6, 2026201-500177 contacts →

Exact match

“Welcome to Subsea Global Solutions where EVERY DAY our goal is to deliver unrivaled service.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchCape Town, South AfricaHQ recorded Nov 6, 202651-200112 contacts →

Exact match

“OSC Group – a forging of underwater innovation and engineering expertise.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchAberdeen, United KingdomHQ recorded Nov 6, 202611-5047 contacts →

Exact match

“KD Marine are a commercial diving contractor providing underwater intervention services to the offshore oil and gas industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchUnited StatesHQ recorded Nov 6, 202651-20040 contacts →

Exact match

“Allweld, a Cape Town-based marine and industrial engineering company, has been servicing the Southern African market for over fifty years.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchHouston, TX, United StatesHQ recorded Nov 6, 202611-5033 contacts →

Exact match

“Established in 1969 in Houston, TX, The Ocean Corporation stands as a beacon of unwavering commitment to quality education.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchAngra Dos Reis, BrazilHQ recorded Nov 6, 202651-20031 contacts →

Exact match

“Com mais de 35 anos de experiência, somos uma empresa especializada em mergulho profissional e serviços subaquáticos, oferecendo soluções seguras, eficientes e de alta qualidade.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchHaugesund, NorwayHQ recorded Nov 6, 202611-5031 contacts →

Exact match

“Diving & maintenance contractor operating worldwide.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchFrejus, FranceHQ recorded Nov 6, 202611-5026 contacts →

Exact match

“L’Ecole Nationale des Scaphandriers (ENS) est l’une des quatre écoles francophones au monde destinée à la formation des plongeurs professionnels.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchTerneuzen, NetherlandsHQ recorded Nov 6, 202651-20025 contacts →

Exact match

“Wӓrtsilӓ Underwater Services started its journey as an underwater service provider with a team of two divers in September 1993, specialising in repairing, overhauling and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchDubai, United Arab EmiratesHQ recorded Nov 6, 202611-5024 contacts →

Exact match

“Royal Marine provides commercial diving services operations nationwide.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchMansfield, TX, United StatesHQ recorded Nov 6, 202611-5022 contacts →

Exact match

“US Underwater provides commercial diving, inspection, maintenance, repair, rehabilitation, and new construction services for critical water and marine infrastructure.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchIkoyi, NigeriaHQ recorded Nov 6, 202651-20022 contacts →

Exact match

“Atlantic Marine & Oilfield Services has been operating as a distinguished Subsea Engineering and Diving Company since maintaining an ISO 9001-2015 certification.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchBuffalo, United StatesHQ recorded Nov 6, 20261-1020 contacts →

Exact match

“BIDCO Marine Group, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchBaltimore, MD, United StatesHQ recorded Nov 6, 202611-5019 contacts →

Exact match

“Eastern Marine Services – Commercial Diving, Underwater Inspection, Maintenance, Dock Repair and Installation, Boat Cleaning, and Topside Detailing Eastern Marine Services is your…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchGoodyear, AZ, United StatesHQ recorded Nov 6, 20261-1019 contacts →

Exact match

“Commercial Divers International is Arizona's first surface-supplied diving, underwater welding, and hyperbaric medicine training school.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchBarrow-in-furness, United KingdomHQ recorded Nov 6, 202611-5018 contacts →

Exact match

“Diving & Marine civil engineering contractor”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchSt Austell, United KingdomHQ recorded Nov 6, 20261-1018 contacts →

Exact match

“HSE Commercial Diver Training Centre located in the south west of England.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchTofte, NorwayHQ recorded Nov 6, 202611-5017 contacts →

Exact match

“Dykkerteknikk AS ble etablert i 1976 og er et godt etablert selskap innen undervannsarbeid og marine operasjoner.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchMacaé, BrazilHQ recorded Nov 6, 202611-5016 contacts →

Exact match

“Na Underwater, mergulhamos além das expectativas na formação de profissionais para operações subaquáticas.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchDunoon, United KingdomHQ recorded Nov 6, 20261-1016 contacts →

Exact match

“The Professional Diving Academy was established in 2004 in response to an apparent shortfall in basic working skills of many of the new divers entering the industry at that time.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchNew Brighton, PA, United StatesHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“Marion Hill Associates Inc is a Marine Construction and Diving Contractor based out of P.O.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchAbu Dhabi, United Arab EmiratesHQ recorded Nov 6, 202611-5013 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchLaksevåg, NorwayHQ recorded Nov 6, 20261-1012 contacts →

Exact match

“BIKS kan tilby de fleste typer industri, maritim og offshorerelatert trening, og arrangerer kurs over hele landet.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchHarvey, United StatesHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“Anders Construction, Inc performs worki in the following areas: Commercial Diving, Marine Construction, Building Construction, Subsea surveying, Side Scan Sonar, Magnetometer…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchFagerstrand, NorwayHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“Norwegian Subsea Training Centre (NYD) is among the leading diving schools of the world.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 302 underwater welding instruction companies worldwide

See the full list, filter by size, metro and specialty, and access 215 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Underwater welding instruction companies worldwide at a glance

As of Nov 6, 2026
10.3%Verified-email coverage
6.9Average contacts per company
1-10Median size (employees)
1.7%Largest-city concentration · Istanbul
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
154
11-50
118
51-200
20
201-500
4
501-1,000
1
10001+
1

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 underwater welding instruction companies are linked below.
What qualifies
Company records worldwide whose business descriptions match “underwater welding instruction companies” 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 215 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 November 6, 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.

Underwater welding instruction companies by location

1 lists · largest first

Every Underwater welding instruction 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 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 “underwater welding instruction companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many underwater welding instruction companies are there worldwide?

RevenueBase identified 302 company matches for underwater welding instruction companies worldwide as of November 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?

Subsea Global Solutions tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most underwater welding instruction companies?

The United States leads with 65 companies. Every underwater welding instruction companies list by country and city is linked on this page.

Which city has the most underwater welding instruction companies?

Istanbul leads with 5 company records, followed by Dubai (4) and Houma (3).

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 215 professional contacts with verified work emails tracked across these 302 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 November 6, 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.