Company lists · Data refreshed September 2026

Top 25 Ocean survey companies based in Norway

Name: Ocean survey companies based in Norway
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 79 companies tracked

RevenueBase identified 79 ocean survey companies headquartered in Norway as of September 2026 and tracks 7,455 professional contacts across them, including 2,736 with verified work emails. Oslo is the largest hub.

This list covers ocean survey 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 20, 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 20, 2026 86% judged on-target in blind review

79Companies

7,455Contacts tracked

2,736Verified emails

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The 25 largest ocean survey companies based in Norway

Ranked by team size

Top 25 of 79 ocean survey companies based in Norway, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to ocean survey 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	Indirect evidence	Bergen, NorwayHQ checked Sep 20, 2026	5,001-10,000	2,942 contacts →
	Indirect 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 20, 2026
2	Shearwater Geoservices	Indirect evidence	Laksevåg, NorwayHQ checked Sep 20, 2026	1,001-5,000	1,031 contacts →
	Indirect evidence “Shearwater is a global marine geoscience and technology business.” Source: RevenueBase Database · checked Sep 20, 2026
3	Kongsberg Discovery	Partial evidence	Horten, NorwayHQ checked Sep 20, 2026	1,001-5,000	638 contacts →
	Partial evidence “In a constantly changing market environment, Kongsberg Discovery is serving the ocean space from the deepest sea to the outer space.” Source: RevenueBase Database · checked Sep 20, 2026
4	Island Offshore	Indirect evidence	Ulsteinvik, NorwayHQ checked Sep 20, 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 20, 2026
5	Global Maritime	Indirect evidence	Stavanger, NorwayHQ checked Sep 20, 2026	201-500	472 contacts →
	Indirect evidence “Global Maritime delivers integrated marine solutions for a changing offshore world.” Source: RevenueBase Database · checked Sep 20, 2026
6	Reach Subsea	Partial evidence	Haugesund, NorwayHQ checked Sep 20, 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 20, 2026
7	Eidesvik Offshore ASA	Indirect evidence	Langevag, NorwayHQ checked Sep 20, 2026	501-1,000	308 contacts →
	Indirect evidence “Offshore Shipping Company.” Source: RevenueBase Database · checked Sep 20, 2026
8	Seabird Exploration	Indirect evidence	Bergen, NorwayHQ checked Sep 20, 2026	501-1,000	194 contacts →
	Indirect 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 20, 2026
9	Magseis Fairfield ASA	Indirect evidence	Lysaker, NorwayHQ checked Sep 20, 2026	201-500	121 contacts →
	Indirect evidence “On January 5, 2023, Magseis Fairfield was acquired by TGS.” Source: RevenueBase Database · checked Sep 20, 2026
10	Havila Subsea & Renewables	Indirect evidence	Aalesund, NorwayHQ checked Sep 20, 2026	201-500	120 contacts →
	Indirect evidence “Havila Subsea & Renewables operates an advanced fleet of vessels dedicated to Diving, Offshore Inspection, Repair, and Maintenance (IRM), as well as Construction.” Source: RevenueBase Database · checked Sep 20, 2026
11	Abyss AS	Indirect evidence	Kristiansund, NorwayHQ checked Sep 20, 2026	201-500	84 contacts →
	Indirect evidence “Abyss utfører alle tjenester på sjøen - over og under vann.” Source: RevenueBase Database · checked Sep 20, 2026
12	Electromagnetic Geoservices ASA	Indirect evidence	Oslo, NorwayHQ checked Sep 20, 2026	11-50	79 contacts →
	Indirect evidence “EMGS Global AS (EMGS) is a leading provider of marine electromagnetic (EM) data and technology for offshore subsurface exploration and development.” Source: RevenueBase Database · checked Sep 20, 2026
13	ARGEO	Indirect evidence	Asker, NorwayHQ checked Sep 20, 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 20, 2026
14	RAA Labs	Indirect evidence	Lysaker, NorwayHQ checked Sep 20, 2026	11-50	28 contacts →
	Indirect evidence “Raa Labs provides vessel data infrastructure for fleet-scale operations.” Source: RevenueBase Database · checked Sep 20, 2026
15	Allton	Partial evidence	Sandnes, NorwayHQ checked Sep 20, 2026	11-50	25 contacts →
	Partial evidence “Allton is a Technology & Service company that specialises in Ocean Bottom Node data acquisition for Hydrocarbon Exploration and Production (E&P), CO2 Measurement Monitoring and…” Source: RevenueBase Database · checked Sep 20, 2026
16	Techno Dive	Indirect evidence	Avaldsnes, NorwayHQ checked Sep 20, 2026	11-50	25 contacts →
	Indirect evidence “Techno Dive is your partner for Safe and Efficient Subsea Work.” Source: RevenueBase Database · checked Sep 20, 2026
17	Stinger Technology AS	Partial evidence	Stavanger, NorwayHQ checked Sep 20, 2026	11-50	23 contacts →
	Partial evidence “Stinger Technology AS is an innovative solution provider focusing on underwater wells monitoring, seabed surveys and jacket inspections.” Source: RevenueBase Database · checked Sep 20, 2026
18	Sjøentreprenøren AS	Indirect evidence	Bergen, NorwayHQ checked Sep 20, 2026	11-50	22 contacts →
	Indirect evidence “Vi utfører oppdrag innen mudring, sprenging, riving, konstruksjon, inspeksjon og mye mer under vann.” Source: RevenueBase Database · checked Sep 20, 2026
19	Valen Marina AS	Indirect evidence	Kolltveit, NorwayHQ checked Sep 20, 2026	11-50	18 contacts →
	Indirect evidence “Valen Marina AS er en sjøentreprenør som har sitt virke innenfor dykke- og ROV tjenester.” Source: RevenueBase Database · checked Sep 20, 2026
20	Danelec Norway	Indirect evidence	Bergen, NorwayHQ checked Sep 20, 2026	11-50	16 contacts →
	Indirect evidence “Danelec Norway AS, formerly Kyma AS, is part of Danelec, a GTT group company and global leader in maritime safety, data collection, and digital performance solutions.” Source: RevenueBase Database · checked Sep 20, 2026
21	Norkyst AS	Partial evidence	Stavanger, NorwayHQ checked Sep 20, 2026	11-50	14 contacts →
	Partial evidence “Norkyst AS is a specialist in nearshore seabed mapping, hydrographic surveying and environmental assessments.” Source: RevenueBase Database · checked Sep 20, 2026
22	Blom Maritime	Indirect evidence	Oslo, NorwayHQ checked Sep 20, 2026	11-50	12 contacts →
	Indirect evidence “INNOVATION THROUGH APPLIED 3D' BLOM Maritime provide full-cycle service while ensuring that cost-effective solutions are continuously implemented before, during, and after the…” Source: RevenueBase Database · checked Sep 20, 2026
23	Inapril AS	Partial evidence	Lillestrøm, NorwayHQ checked Sep 20, 2026	11-50	10 contacts →
	Partial evidence “Privately held inApril AS, a leading innovator in marine seismic technology for the oil and gas industry, designs and manufactures the complete and fully integrated ocean bottom…” Source: RevenueBase Database · checked Sep 20, 2026
24	Inkster Group	Indirect evidence	Ulsteinvik, NorwayHQ checked Sep 20, 2026	11-50	9 contacts →
	Indirect evidence “Based on the west coast of Norway in the heart of the Norwegian Maritime Cluster, Inkster offers specialised support to the maritime, offshore and aquaculture industries…” Source: RevenueBase Database · checked Sep 20, 2026
25	Novatek AS	Indirect evidence	8012 Bodø, NorwayHQ checked Sep 20, 2026	1-10	9 contacts →
	Indirect evidence “Novatek AS leverer innenfor tjenesteområdene Geomatikk, Oppmåling, 3D Skanning, Byggstikking, Eiendomsregistrering, Dronekartlegging, vann og avløp, Undervannsteknikk og…” Source: RevenueBase Database · checked Sep 20, 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: ocean survey 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 ocean survey companies.
Partial evidence: Its own public description names part of ocean survey companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name ocean survey 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 79 ocean survey companies based in Norway

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Ocean survey companies based in Norway at a glance

As of Sep 20, 2026

36.7%Verified-email coverage

94.4Average contacts per company

11-50Median size (employees)

12.7%Largest-city concentration · Oslo

Sep 20, 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 79 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 ocean survey 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 “ocean survey 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 ocean survey 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 ocean survey 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, 2,736 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 20, 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.

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 ocean survey 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 ocean survey companies are there based in Norway?

RevenueBase identified 79 ocean survey 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 ocean survey companies?

Oslo leads with 10 headquartered companies, followed by Bergen (5) and Stavanger (5).

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 2,736 verified decision-maker contacts tracked across these 79 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 20, 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.