Company lists · Data refreshed September 2026

Top 25 Semi-submersible rig operators based in Norway

RevenueBase identified 84 company matches for semi-submersible rig operators associated with Norway as of September 2026 and tracks 13,765 professional contacts across them, including 3,702 with verified work emails. Stavanger is the largest hub.

This list covers company matches for semi-submersible rig operators 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 September 22, 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 Sep 22, 2026 How this list was built
84Companies
13,765Contacts tracked
3,702Verified emails
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The 25 largest semi-submersible rig operators based in Norway

Ranked by team size
Top 25 of 84 company matches for semi-submersible rig operators based in Norway, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 22, 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 Sep 22, 20265,001-10,0002,942 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 · Sep 22, 2026 · View company records in RevenueBase
2Exact matchSandnes, NorwayHQ recorded Sep 22, 20265,001-10,0002,373 contacts →

Exact match

“Archer is a company providing drilling and well services to the global energy industry.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
3Exact matchSkudeneshavn, NorwayHQ recorded Sep 22, 20261,001-5,0001,625 contacts →

Exact match

“Solstad is a company with more than 60 years of experience within various shipping segments, and is currently one of the leading provider of specialized offshore tonnage to the…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
4Exact matchN-4068 Stavanger, NorwayHQ recorded Sep 22, 2026n/a630 contacts →

Exact match

“Prosafe is a leading owner and operator of semi-submersible accommodation vessels.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
5Exact matchSandnes, NorwayHQ recorded Sep 22, 2026501-1,000629 contacts →

Exact match

“Always do better" is our guiding principle leading us through the energy transition and towards our vision of becoming the preferred supplier of drilling services.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
6Exact matchKristiansand, NorwayHQ recorded Sep 22, 20261,001-5,000560 contacts →

Exact match

“October 2021.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
7Exact matchUlsteinvik, NorwayHQ recorded Sep 22, 2026501-1,000501 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 · Sep 22, 2026 · View company records in RevenueBase
8Exact matchHaugesund, NorwayHQ recorded Sep 22, 2026201-500454 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 · Sep 22, 2026 · View company records in RevenueBase
9Exact matchLangevag, NorwayHQ recorded Sep 22, 2026501-1,000308 contacts →

Exact match

“Offshore Shipping Company.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
10Exact matchFosnavåg, NorwayHQ recorded Sep 22, 2026201-500288 contacts →

Exact match

“About Rem Offshore Rem Offshore is a new company with old roots – tracing back to 1978 with fishery activities in Norway, Rem Offshore organisation today operates worldwide, with…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
11Exact matchOslo, NorwayHQ recorded Sep 22, 2026201-500233 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 · Sep 22, 2026 · View company records in RevenueBase
12Exact matchStraume, NorwayHQ recorded Sep 22, 202651-200194 contacts →

Exact match

“Innovative, enabling technology is at the very heart of Enhanced Drilling.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
13Exact matchAustevoll, NorwayHQ recorded Sep 22, 2026n/a154 contacts →

Exact match

“Vestland Offshore AS is a worldwide shipping company within the offshore oil & gas and renewable industry.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
14Exact matchMongstad, NorwayHQ recorded Sep 22, 2026201-500133 contacts →

Exact match

“PSW Technology offers a wide range of services and solutions to the global drilling industry.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
15Exact matchAalesund, NorwayHQ recorded Sep 22, 2026201-500120 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 · Sep 22, 2026 · View company records in RevenueBase
16Exact matchSandsli, NorwayHQ recorded Sep 22, 202651-200114 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 · Sep 22, 2026 · View company records in RevenueBase
17Exact matchSandnes, NorwayHQ recorded Sep 22, 202651-20091 contacts →

Exact match

“Macro Offshore, is a fully integrated owner and operator of accommodation vessels with a fleet of two harsh-environment deep-water accommodation jack-up rigs, Haven and Crossway…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
18Exact matchKristiansund, NorwayHQ recorded Sep 22, 2026201-50084 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
19Exact matchFornebu, NorwayHQ recorded Sep 22, 202651-20078 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
20Exact matchLysaker, NorwayHQ recorded Sep 22, 202651-20065 contacts →

Exact match

“Moss Maritime provides leading technology and expertise within design and engineering services to the offshore energy sector as well as other ocean-based sectors.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
21Exact matchNorwayHQ recorded Sep 22, 20261,001-5,00064 contacts →

Exact match

“Siem Offshore offers a dedicated and skilled workforce.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
22Exact matchStavanger, NorwayHQ recorded Sep 22, 202651-20052 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 · Sep 22, 2026 · View company records in RevenueBase
23Exact matchLierbyen, NorwayHQ recorded Sep 22, 202651-20047 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 · Sep 22, 2026 · View company records in RevenueBase
24Exact matchFosnavag, NorwayHQ recorded Sep 22, 202651-20045 contacts →

Exact match

“Remøy Shipping is a fully integrated shipping company and has its main activity within the oil and gas industry since the beginning of the 1980s.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
25Exact matchHaugesund, NorwayHQ recorded Sep 22, 202611-5044 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase

Showing 25 of 84 semi-submersible rig operators based in Norway

See the full list, filter by size, metro and specialty, and access 3,702 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Semi-submersible rig operators based in Norway at a glance

As of Sep 22, 2026
26.9%Verified-email coverage
163.9Average contacts per company
11-50Median size (employees)
13.1%Largest-city concentration · Stavanger
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
22
11-50
21
51-200
21
201-500
10
501-1,000
3
1,001-5,000
5
5,001-10,000
2

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 84 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 “semi-submersible rig operators” 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 3,702 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 September 22, 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 “semi-submersible rig operators”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many semi-submersible rig operators are there based in Norway?

RevenueBase identified 84 company matches for semi-submersible rig operators associated with Norway as of September 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 semi-submersible rig operators?

Stavanger leads with 11 company records, followed by Kristiansand (7) and Haugesund (5).

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 3,702 professional contacts with verified work emails tracked across these 84 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 September 22, 2026.

Ready to reach these companies? Verified emails and direct dials for all 84 semi-submersible rig operators based in Norway. Start with a free account, no credit card.

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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.