Company lists · Data refreshed September 2026

Top 25 Subsea operations software companies based in Norway

Name: Subsea operations software companies based in Norway
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 204 companies tracked

RevenueBase identified 204 subsea operations software companies headquartered in Norway as of September 2026 and tracks 12,112 professional contacts across them, including 4,299 with verified work emails. Stavanger is the largest hub.

This list covers subsea operations software companies headquartered in Norway, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 29, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 29, 2026 86% judged on-target in blind review

204Companies

12,112Contacts tracked

4,299Verified emails

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The 25 largest subsea operations software companies based in Norway

Ranked by team size

Top 25 of 204 subsea operations software companies based in Norway, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to subsea operations software companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	DOF	Partial evidence	Bergen, NorwayHQ checked Sep 29, 2026	5,001-10,000	2,942 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 29, 2026
2	Shearwater Geoservices	Indirect evidence	Laksevåg, NorwayHQ checked Sep 29, 2026	1,001-5,000	1,031 contacts →
	Indirect evidence “Shearwater is a global marine geoscience and technology business.” Source: RevenueBase Database · checked Sep 29, 2026
3	AGR	Strong evidence	Oslo, NorwayHQ checked Sep 29, 2026	501-1,000	768 contacts →
	Strong evidence “AGR – an Aqualis company – is a multidisciplinary consultancy, specialising in drilling & wells, subsurface, marine and subsea solutions, resourcing, technical safety and software…” Source: RevenueBase Database · checked Sep 29, 2026
4	Kongsberg Digital	Indirect evidence	Fornebu, NorwayHQ checked Sep 29, 2026	501-1,000	710 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026
5	Mhwirth	Indirect evidence	Kristiansand, NorwayHQ checked Sep 29, 2026	1,001-5,000	560 contacts →
	Indirect evidence “October 2021.” Source: RevenueBase Database · checked Sep 29, 2026
6	Island Offshore	Indirect evidence	Ulsteinvik, NorwayHQ checked Sep 29, 2026	501-1,000	501 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 29, 2026
7	Global Maritime	Indirect evidence	Stavanger, NorwayHQ checked Sep 29, 2026	201-500	472 contacts →
	Indirect evidence “Global Maritime delivers integrated marine solutions for a changing offshore world.” Source: RevenueBase Database · checked Sep 29, 2026
8	Reach Subsea	Partial evidence	Haugesund, NorwayHQ checked Sep 29, 2026	201-500	454 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 29, 2026
9	Akofs Offshore	Partial evidence	Oslo, NorwayHQ checked Sep 29, 2026	201-500	233 contacts →
	Partial evidence “AKOFS Offshore is a global provider of vessel based subsea well construction and intervention services to the oil and gas industry.” Source: RevenueBase Database · checked Sep 29, 2026
10	Omega Subsea	Partial evidence	Bergen, NorwayHQ checked Sep 29, 2026	201-500	209 contacts →
	Partial evidence “Omega Subsea delivers ROV, survey, engineering, and subsea project services to the global offshore industry.” Source: RevenueBase Database · checked Sep 29, 2026
11	Imenco	Indirect evidence	Aksdal, NorwayHQ checked Sep 29, 2026	201-500	199 contacts →
	Indirect evidence “Imenco is a group of companies working mainly in five main business areas: Offshore oil & gas, offshore renewables, aquaculture, marine & naval and industrial.” Source: RevenueBase Database · checked Sep 29, 2026
12	Enhanced Drilling	Indirect evidence	Straume, NorwayHQ checked Sep 29, 2026	51-200	194 contacts →
	Indirect evidence “Innovative, enabling technology is at the very heart of Enhanced Drilling.” Source: RevenueBase Database · checked Sep 29, 2026
13	Seabird Exploration	Partial evidence	Bergen, NorwayHQ checked Sep 29, 2026	501-1,000	194 contacts →
	Partial evidence “SeaBird Exploration is a wholly owned subsidiary of SED Energy Holdings Plc, which is listed on Euronext Oslo Børs.” Source: RevenueBase Database · checked Sep 29, 2026
14	4subsea	Partial evidence	Asker, NorwayHQ checked Sep 29, 2026	51-200	157 contacts →
	Partial evidence “4Subsea is a leading provider of technology and services that help operators optimise energy production from subsea oil & gas fields and offshore wind farms.” Source: RevenueBase Database · checked Sep 29, 2026
15	Vissim	Partial evidence	Horten, NorwayHQ checked Sep 29, 2026	51-200	123 contacts →
	Partial evidence “Vissim is a software developer and turnkey sensor and infrastructure provider for advanced marine optimisation systems.” Source: RevenueBase Database · checked Sep 29, 2026
16	IK Group	Partial evidence	Stavanger, NorwayHQ checked Sep 29, 2026	51-200	123 contacts →
	Partial evidence “IK SUBSEA - IK TOPSIDE - IK TRAX - IZOMAX - NORCLAMP Our clever use of proven technology makes your flowlines and pipelines run safely and profitably.” Source: RevenueBase Database · checked Sep 29, 2026
17	Techouse AS	Indirect evidence	Sandnes, NorwayHQ checked Sep 29, 2026	51-200	106 contacts →
	Indirect evidence “Techouse is a leader in the provision of offshore platform processing equipment and services to the international oil & gas industry.” Source: RevenueBase Database · checked Sep 29, 2026
18	Optime, A Halliburton Service	Partial evidence	Notodden, NorwayHQ checked Sep 29, 2026	51-200	98 contacts →
	Partial evidence “Optime, A Halliburton Service is an innovative subsea oil and gas provider focusing on cost efficient solutions specifically towards products within the well access, well…” Source: RevenueBase Database · checked Sep 29, 2026
19	FØN Energy Services	Indirect evidence	Fornebu, NorwayHQ checked Sep 29, 2026	51-200	78 contacts →
	Indirect evidence “Føn Energy Services is an independent service provider to the offshore energy sector.” Source: RevenueBase Database · checked Sep 29, 2026
20	Star Information Systems	Strong evidence	Trondheim, NorwayHQ checked Sep 29, 2026	51-200	75 contacts →
	Strong evidence “Star Information Systems (STAR) is a leading provider of maritime software solutions for efficient and safe ship and rig operations.” Source: RevenueBase Database · checked Sep 29, 2026
21	Horizon56	Indirect evidence	Stavanger, NorwayHQ checked Sep 29, 2026	51-200	74 contacts →
	Indirect evidence “At Horizon56, we aim to digitalize the Oil & Gas well construction process, by closing the gap between planning & execution, as well as between on and offshore.” Source: RevenueBase Database · checked Sep 29, 2026
22	ARGEO	Indirect evidence	Asker, NorwayHQ checked Sep 29, 2026	51-200	71 contacts →
	Indirect evidence “Argeo was established by an experienced team of professionals in 2017 with HQ in Asker, Norway.” Source: RevenueBase Database · checked Sep 29, 2026
23	Unisea AS	Partial evidence	Skudeneshavn, NorwayHQ checked Sep 29, 2026	51-200	65 contacts →
	Partial evidence “UniSea is a maritime software company supporting more than 160 customers worldwide, covering a combined fleet of 2,600+ vessels.” Source: RevenueBase Database · checked Sep 29, 2026
24	Technip India Limited	Indirect evidence	Sandvika, NorwayHQ checked Sep 29, 2026	51-200	59 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026
25	Oliasoft	Partial evidence	Oslo, NorwayHQ checked Sep 29, 2026	51-200	53 contacts →
	Partial evidence “Oliasoft is a global Software-as-a-Service (SaaS) company enabling digitization and automation through sophisticated cloud engineering software.” Source: RevenueBase Database · checked Sep 29, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: subsea operations software companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names subsea operations software companies.
Partial evidence: Its own public description names part of subsea operations software companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name subsea operations software companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 204 subsea operations software companies based in Norway

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Subsea operations software companies based in Norway at a glance

As of Sep 29, 2026

35.5%Verified-email coverage

59.4Average contacts per company

11-50Median size (employees)

13.7%Largest-city concentration · Stavanger

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 204 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among subsea operations software companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Norway whose own description of what they do matches “subsea operations software companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names subsea operations software companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among subsea operations software companies, and records with no verified work email. Companies headquartered outside Norway are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 4,299 across the full list. 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 29, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Subsea operations software companies by metro

Subsea operations software companies in Stavanger28

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names subsea operations software companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many subsea operations software companies are there based in Norway?

RevenueBase identified 204 subsea operations software companies headquartered in Norway as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

DOF, headquartered in Bergen, tops this list with the largest team on record.

Which city has the most subsea operations software companies?

Stavanger leads with 28 headquartered companies, followed by Oslo (23) and Bergen (12).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 4,299 verified decision-maker contacts tracked across these 204 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 29, 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 Smart Search, 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.