Company lists · Data refreshed October 2026

Top 25 Offshore diving contractors based in Norway

RevenueBase identified 109 company matches for offshore diving contractors associated with Norway as of October 2026 and tracks 7,928 professional contacts across them, including 2,533 with verified work emails. Bergen is the largest hub.

This list covers company matches for offshore diving contractors associated with Norway, 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 19, 2026.

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 19, 2026 How this list was built
109Companies
7,928Contacts tracked
2,533Verified emails
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The 25 largest offshore diving contractors based in Norway

Ranked by team size
Top 25 of 109 company matches for offshore diving contractors based in Norway, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 19, 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 matchBergen, NorwayHQ recorded Oct 19, 20265,001-10,0003,269 contacts →

Exact match

“With a multi-national workforce of over 5,700 personnel, DOF is an international group of companies which owns and operates a fleet of modern offshore/subsea vessels, with an…”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
2Exact matchKristiansand, NorwayHQ recorded Oct 19, 20261,001-5,000570 contacts →

Exact match

“October 2021.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
3Exact matchUlsteinvik, NorwayHQ recorded Oct 19, 2026501-1,000532 contacts →

Exact match

“Island Offshore - The Island Offshore Group is a leading provider of services to the offshore industry ranging from Platform Supply, Walk-to-work and Anchor Handling to Advanced…”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
4Exact matchHaugesund, NorwayHQ recorded Oct 19, 2026201-500481 contacts →

Exact match

“Reach Subsea ASA (“Reach Subsea”, “Reach” or “the Group”) is a prominent offshore contractor that offer high quality solutions and technology to clients in need of ocean data and…”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
5Exact matchStavanger, NorwayHQ recorded Oct 19, 2026201-500463 contacts →

Exact match

“Global Maritime delivers integrated marine solutions for a changing offshore world.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
6Exact matchLangevag, NorwayHQ recorded Oct 19, 2026501-1,000313 contacts →

Exact match

“Offshore Shipping Company.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
7Exact matchOslo, NorwayHQ recorded Oct 19, 2026201-500246 contacts →

Exact match

“AKOFS Offshore is a global provider of vessel based subsea well construction and intervention services to the oil and gas industry.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
8Exact matchBergen, NorwayHQ recorded Oct 19, 2026201-500244 contacts →

Exact match

“Omega Subsea delivers ROV, survey, engineering, and subsea project services to the global offshore industry.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
9Exact matchSandsli, NorwayHQ recorded Oct 19, 202651-200128 contacts →

Exact match

“Island Drilling was established in 2006 by industry veterans and Island Offshore, the leading global player in well intervention, to build and own special purpose semi-submersible…”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
10Exact matchAalesund, NorwayHQ recorded Oct 19, 2026201-500123 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 · Oct 19, 2026 · View company records in RevenueBase
11Exact matchKristiansund, NorwayHQ recorded Oct 19, 2026201-500100 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
12Exact matchStavanger, NorwayHQ recorded Oct 19, 202651-20057 contacts →

Exact match

“Sub Sea Services is a solution-focused, flexible and collaboration oriented partner to the offshore drilling industry.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
13Exact matchFornebu, NorwayHQ recorded Oct 19, 202651-20056 contacts →

Exact match

“Føn Energy Services is an independent service provider to the offshore energy sector.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
14Exact matchLierbyen, NorwayHQ recorded Oct 19, 202651-20053 contacts →

Exact match

“SubseaDesign (SD) is an engineering, design and fabrication company providing equipment and services for the oil and gas industry.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
15Exact matchBønes, NorwayHQ recorded Oct 19, 202611-5050 contacts →

Exact match

“Mohn Drilling AS is a diving and ROV contractor based in Bergen, Norway, and the main area of activity is offshore Tierra del Fuego, Argentina.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
16Exact matchHaugesund, NorwayHQ recorded Oct 19, 202611-5041 contacts →

Exact match

“SubseaPartner is a leading diving contractor in the shallow-deep segment.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
17Exact matchBergen, NorwayHQ recorded Oct 19, 202651-20041 contacts →

Exact match

“Swire Seabed provides a highly flexible range of integrated subsea services to the global Oil & Gas and renewables industries.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
18Exact matchSandnes, NorwayHQ recorded Oct 19, 202651-20038 contacts →

Exact match

“Established in 1997, Innova is a leading supplier of services, equipment and solutions to the international underwater industry.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
19Exact matchBryne, NorwayHQ recorded Oct 19, 202611-5027 contacts →

Exact match

“Envirex’ engineering expertise delivers a wide range of products, systems and services for the subsea oil and gas industry.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
20Exact matchAvaldsnes, NorwayHQ recorded Oct 19, 202611-5027 contacts →

Exact match

“Techno Dive is your partner for Safe and Efficient Subsea Work.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
21Exact matchLepsøy, NorwayHQ recorded Oct 19, 202611-5026 contacts →

Exact match

“Vi leverer tjenester innen Havbruk, Offshore, Bygg- og Anlegg”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
22Exact matchTananger, NorwayHQ recorded Oct 19, 202651-20024 contacts →

Exact match

“WellPartner AS is a service company that delivers technical expertise and high quality equipment and services within subsea drilling, completion and intervention operations.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
23Exact matchStavanger, NorwayHQ recorded Oct 19, 202611-5024 contacts →

Exact match

“Stinger Technology AS is an innovative solution provider focusing on underwater wells monitoring, seabed surveys and jacket inspections.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
24Exact matchRudskogen, NorwayHQ recorded Oct 19, 202651-20024 contacts →

Exact match

“Om NOBLE INSTALLATION AS: Heleid datterselskap av Noble AS, etablert i Vår virksomhet er innenfor marine operasjoner, offshore installasjon, mekanisk montasje og produksjon.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
25Exact matchTrondheim, NorwayHQ recorded Oct 19, 202611-5023 contacts →

Exact match

“OceanTech is a technology driven company with long experience and proven track record in the Splash Sone.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase

Showing 25 of 109 offshore diving contractors based in Norway

See the full list, filter by size, metro and specialty, and access 2,533 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Offshore diving contractors based in Norway at a glance

As of Oct 19, 2026
32.0%Verified-email coverage
72.7Average contacts per company
11-50Median size (employees)
6.4%Largest-city concentration · Bergen
Oct 19, 2026Page data refreshed

Companies by employee count

1-10
35
11-50
41
51-200
19
201-500
10
501-1,000
2
1,001-5,000
1
5,001-10,000
1

Email recency for this list is measured worldwide rather than for Norway, so it is reported there. Company counts and contact totals on this page are exact for Norway, over 109 companies.

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.
What qualifies
Company records associated with Norway whose business descriptions match “offshore diving 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 2,533 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 19, 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.

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

How many offshore diving contractors are there based in Norway?

RevenueBase identified 109 company matches for offshore diving contractors associated with Norway 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?

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

Which city has the most offshore diving contractors?

Bergen leads with 7 company records, followed by Stavanger (7) and Haugesund (6).

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 2,533 professional contacts with verified work emails tracked across these 109 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 19, 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.