Company lists · Data refreshed November 2026

Top 25 Submarine welding contractors worldwide

RevenueBase identified 990 company matches for submarine welding contractors worldwide as of November 2026 and tracks 17,416 professional contacts across them, including 2,970 with verified work emails. The United States is the largest market and Singapore the largest hub.

This list covers company matches for submarine welding 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 November 6, 2026. Country and city lists for submarine welding 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 Nov 6, 2026 How this list was built
990Companies
17,416Contacts tracked
2,970Verified emails
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The 25 largest submarine welding contractors worldwide

Ranked by team size
Top 25 of 990 company matches for submarine welding contractors 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 matchOsborne, AustraliaHQ recorded Nov 6, 20261,001-5,0002,061 contacts →

Exact match

“ASC Pty Ltd has proudly served as Australia’s submarine builder and sustainer for almost 40 years.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchAbu Dhabi, United Arab EmiratesHQ recorded Nov 6, 2026201-5001,344 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchDammam, Saudi ArabiaHQ recorded Nov 6, 2026501-1,000428 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchSriracha, ThailandHQ recorded Nov 6, 2026501-1,000320 contacts →

Exact match

“Mermaid Subsea today operates as a unified structured unit across markets offering customers a comprehensive range of subsea solutions through a highly competent technical and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchChesapeake, VA, United StatesHQ recorded Nov 6, 20261,001-5,000313 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchIndiaHQ recorded Nov 6, 2026201-500296 contacts →

Exact match

“Dolphin Offshore”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchWashougal, FL, United StatesHQ recorded Nov 6, 202651-200252 contacts →

Exact match

“Ballard Marine Construction (Ballard) is a specialty marine and underwater contractor.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchDubai, United Arab EmiratesHQ recorded Nov 6, 2026201-500248 contacts →

Exact match

“Dulam International is a leading provider of subsea services to the oil and gas industry in the Middle East and Indian Subcontinent.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchEssex, WI, United StatesHQ recorded Nov 6, 2026201-500195 contacts →

Exact match

“Since 1969, Underwater Construction Corporation (UCC) has been a leading provider of underwater services to commercial and government facilities.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact 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
11Exact matchLargo, LA, United StatesHQ recorded Nov 6, 2026201-500167 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchBaltimore, MD, United StatesHQ recorded Nov 6, 202611-50147 contacts →

Exact match

“SUS specializes in underwater marine construction including bridges, dams, pipelines, intakes, outfalls, inspection services, piers and wharfs and other public safety and local…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchAalesund, NorwayHQ recorded Nov 6, 2026201-500134 contacts →

Exact match

“Havila Subsea & Renewables operates an advanced fleet of vessels dedicated to Diving, Offshore Inspection, Repair, and Maintenance (IRM), as well as Construction.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchBeerse, BelgiumHQ recorded Nov 6, 202651-200120 contacts →

Exact match

“We are DISA International.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchPortsmouth, VA, United StatesHQ recorded Nov 6, 202651-200113 contacts →

Exact match

“Solutions Above & Below the Waterline, Since 1949: Commercial Diving | Marine Construction | Crane Rental & Rigging Maritime Energy Utility Construction Ship Repair Engineering…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact 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
17Exact matchNewport News, VA, United StatesHQ recorded Nov 6, 202651-200111 contacts →

Exact match

“East Coast Repair and Fabrication (ECR) has been a leading force in the marine, industrial and commercial sectors since We have an established and proven track record with the…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchKristiansund, NorwayHQ recorded Nov 6, 2026201-500106 contacts →

Exact match

“Abyss utfører alle tjenester på sjøen - over og under vann.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchViña Del Mar, ChileHQ recorded Nov 6, 2026201-50097 contacts →

Exact match

“STS is the most experienced and largest Subsea Engineering and Services Company in Chile and one of the leaders in Latin-America.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchSandbank, United KingdomHQ recorded Nov 6, 202651-20093 contacts →

Exact match

“Founded in 1992, Shearwater Marine Services have since grown to become a highly respected topside and sub-surface marine engineering service provider.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchNorfolk, VA, United StatesHQ recorded Nov 6, 202651-20076 contacts →

Exact match

“Seaward Marine Services was founded in 1972 to conduct underwater search and recovery operations, Seaward Marine has become the diving services leader in the field of underwater…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchSingaporeHQ recorded Nov 6, 202651-20069 contacts →

Exact match

“Ocean Works Asia is a Southeast Asia-based subsea services group operating across Singapore, Thailand, Indonesia, and Myanmar.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchGenoa, ItalyHQ recorded Nov 6, 202611-5063 contacts →

Exact match

“Drafinsub operates in the marine field since 1977, undertaking any kind of underwater activity, in shallow or deep water, offshore and onshore.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchSingaporeHQ recorded Nov 6, 2026201-50060 contacts →

Exact match

“Seagull Pte Ltd is a Singapore Registered ISO 9001 Certified Company established in November 2003.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchAraruama, BrazilHQ recorded Nov 6, 202611-5059 contacts →

Exact match

“A RCS Subaquática é uma empresa de mergulho e soluções subaquáticas, criada por engenheiros, técnicos e mergulhadores preocupados com a segurança nas operações de mergulho e com a…”

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

Showing 25 of 990 submarine welding contractors worldwide

See the full list, filter by size, metro and specialty, and access 2,970 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Submarine welding contractors worldwide at a glance

As of Nov 6, 2026
17.1%Verified-email coverage
17.6Average contacts per company
11-50Median size (employees)
1.7%Largest-city concentration · Singapore
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
406
11-50
421
51-200
114
201-500
28
501-1,000
3
1,001-5,000
8

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 submarine welding contractors are linked below.
What qualifies
Company records worldwide whose business descriptions match “submarine welding 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 2,970 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.

Submarine welding contractors by location

7 lists · largest first

Every Submarine welding contractors 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 “submarine welding contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many submarine welding contractors are there worldwide?

RevenueBase identified 990 company matches for submarine welding contractors 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?

ASC PTY LTD tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most submarine welding contractors?

The United States leads with 189 companies, followed by the United Kingdom (74) and Brazil (43). Every submarine welding contractors list by country and city is linked on this page.

Which city has the most submarine welding contractors?

Singapore leads with 17 company records, followed by Dubai (12) and Istanbul (9).

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 2,970 professional contacts with verified work emails tracked across these 990 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.