Company lists · Data refreshed September 2026

Top 25 Seabed mining contractors based in Norway

Name: Seabed mining contractors based in Norway
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 49 companies tracked

RevenueBase identified 49 seabed mining contractors headquartered in Norway as of September 2026 and tracks 2,917 professional contacts across them, including 969 with verified work emails. Oslo is the largest hub.

This list covers seabed mining contractors 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 17, 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 17, 2026 86% judged on-target in blind review

49Companies

2,917Contacts tracked

969Verified emails

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The 25 largest seabed mining contractors based in Norway

Ranked by team size

Top 25 of 49 seabed mining contractors based in Norway, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to seabed mining contractors: 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	Shearwater Geoservices	Indirect evidence	Laksevåg, NorwayHQ checked Sep 17, 2026	1,001-5,000	1,031 contacts →
	Indirect evidence “Shearwater is a global marine geoscience and technology business.” Source: RevenueBase Database · checked Sep 17, 2026
2	Kongsberg Discovery	Indirect evidence	Horten, NorwayHQ checked Sep 17, 2026	1,001-5,000	638 contacts →
	Indirect 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 17, 2026
3	Reach Subsea	Partial evidence	Haugesund, NorwayHQ checked Sep 17, 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 17, 2026
4	Ocean Installer	Indirect evidence	Stavanger, NorwayHQ checked Sep 17, 2026	201-500	299 contacts →
	Indirect evidence “Ocean Installer is a leading marine construction company that specializes in offshore installation services with more than 15 years of experience delivering large and complex…” Source: RevenueBase Database · checked Sep 17, 2026
5	ARGEO	Indirect evidence	Asker, NorwayHQ checked Sep 17, 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 17, 2026
6	Swire Seabed	Partial evidence	Bergen, NorwayHQ checked Sep 17, 2026	51-200	40 contacts →
	Partial evidence “Swire Seabed provides a highly flexible range of integrated subsea services to the global Oil & Gas and renewables industries.” Source: RevenueBase Database · checked Sep 17, 2026
7	Allton	Indirect evidence	Sandnes, NorwayHQ checked Sep 17, 2026	11-50	25 contacts →
	Indirect 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 17, 2026
8	Techno Dive	Indirect evidence	Avaldsnes, NorwayHQ checked Sep 17, 2026	11-50	25 contacts →
	Indirect evidence “Techno Dive is your partner for Safe and Efficient Subsea Work.” Source: RevenueBase Database · checked Sep 17, 2026
9	Sjøentreprenøren AS	Indirect evidence	Bergen, NorwayHQ checked Sep 17, 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 17, 2026
10	Deep C	Partial evidence	Kristiansund, NorwayHQ checked Sep 17, 2026	11-50	21 contacts →
	Partial evidence “Deep C provides Seabed Intervention Services that simply fit together.” Source: RevenueBase Database · checked Sep 17, 2026
11	AVA Ocean	Partial evidence	Ålesund, NorwayHQ checked Sep 17, 2026	11-50	20 contacts →
	Partial evidence “Our revolutionary technology for non-invasive, precision seabed harvesting not only preserves, but can also help to revitalise fragile and often overlooked ecosystems at the…” Source: RevenueBase Database · checked Sep 17, 2026
12	Valen Marina AS	Indirect evidence	Kolltveit, NorwayHQ checked Sep 17, 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 17, 2026
13	Norkyst AS	Partial evidence	Stavanger, NorwayHQ checked Sep 17, 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 17, 2026
14	Miko Marine	Indirect evidence	Lysaker, NorwayHQ checked Sep 17, 2026	11-50	12 contacts →
	Indirect evidence “Pioneering Magnetic Solutions for the Marine Industry.” Source: RevenueBase Database · checked Sep 17, 2026
15	Envirent AS	Indirect evidence	Bryne, NorwayHQ checked Sep 17, 2026	11-50	8 contacts →
	Indirect evidence “Envirent AS is a part of Envirex Group and has since startup focused on developing an own rental fleet of equipment related to subsea intervention, installation, maintenance and…” Source: RevenueBase Database · checked Sep 17, 2026
16	Volcanic Basin Energy Research Vber	Indirect evidence	Oslo, NorwayHQ checked Sep 17, 2026	1-10	7 contacts →
	Indirect evidence “Volcanic Basin Energy Research (VBER) is a research and consulting company in Oslo.” Source: RevenueBase Database · checked Sep 17, 2026
17	Finnsnes Dykk & Anleggsservice AS	Indirect evidence	Finnsnes, NorwayHQ checked Sep 17, 2026	51-200	7 contacts →
	Indirect evidence “Finnsnes Dykk & Anleggservice AS er en maritim entreprenør som leverer tjenester til havbruksnæringen, entreprenører og det offentlige.” Source: RevenueBase Database · checked Sep 17, 2026
18	Nærøysund Aquaservice AS	Indirect evidence	Rørvik, NorwayHQ checked Sep 17, 2026	11-50	6 contacts →
	Indirect evidence “Nærøysund Aquaservice AS er en allsidig og veldrevet bedrift i Nærøysund kommune i Trøndelag som selger tjenester og produkter, hovedsakelig til havbruksnæringen, men også til…” Source: RevenueBase Database · checked Sep 17, 2026
19	C Robotics AS	Indirect evidence	Kristiansund, NorwayHQ checked Sep 17, 2026	1-10	6 contacts →
	Indirect evidence “Driven by a deep commitment to the ocean and marine life, we have developed advanced, efficient, and environmentally responsible technologies for the industrial harvesting of…” Source: RevenueBase Database · checked Sep 17, 2026
20	Geostrom AS	Indirect evidence	Våle, NorwayHQ checked Sep 17, 2026	11-50	6 contacts →
	Indirect evidence “Vi stiller sterkt med 8 borerigger, spesialutstyr for undersøkelser til sjøs og vårt eget geotekniske laboratorium.” Source: RevenueBase Database · checked Sep 17, 2026
21	2marine AS	Partial evidence	Honningsvåg, NorwayHQ checked Sep 17, 2026	11-50	6 contacts →
	Partial evidence “MARINE CONTRACTING - MARINE INFRASTRUCTURE - MARINE SERVICE - SEABED SOLUTIONS - PIPELINES - MARINE CREW - TRANSPORT - Cargo” Source: RevenueBase Database · checked Sep 17, 2026
22	Adepth Minerals	Indirect evidence	Bergen, NorwayHQ checked Sep 17, 2026	1-10	6 contacts →
	Indirect evidence “ADEPTH is a Norwegian based company with the aim to deliver sustainable exploration and extraction of marine minerals.” Source: RevenueBase Database · checked Sep 17, 2026
23	Green Minerals	Indirect evidence	Sentrum, NorwayHQ checked Sep 17, 2026	11-50	5 contacts →
	Indirect evidence “Green Minerals enables the worlds drive towards electrification and digitization in a sustainable manner.” Source: RevenueBase Database · checked Sep 17, 2026
24	Loke Marine Minerals	Indirect evidence	Stavanger, NorwayHQ checked Sep 17, 2026	1-10	3 contacts →
	Indirect evidence “To reach the UN Sustainable Development Goals, electrification will be of great importance.” Source: RevenueBase Database · checked Sep 17, 2026
25	Granfoss	Indirect evidence	Oslo, NorwayHQ checked Sep 17, 2026	1-10	3 contacts →
	Indirect evidence “Granfoss develops and delivers continuous dredging and sustainable sediment management through autonomous technology.” Source: RevenueBase Database · checked Sep 17, 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: seabed mining contractors. 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 seabed mining contractors.
Partial evidence: Its own public description names part of seabed mining contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name seabed mining contractors. 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 49 seabed mining contractors based in Norway

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Seabed mining contractors based in Norway at a glance

As of Sep 17, 2026

33.2%Verified-email coverage

59.5Average contacts per company

11-50Median size (employees)

10.2%Largest-city concentration · Oslo

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

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 49 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 seabed mining contractors, 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 “seabed mining contractors”. 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 seabed mining contractors), 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 seabed mining contractors, 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, 969 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 17, 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 seabed mining contractors, 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 seabed mining contractors are there based in Norway?

RevenueBase identified 49 seabed mining contractors 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?

Shearwater Geoservices, headquartered in Laksevag, tops this list with the largest team on record.

Which city has the most seabed mining contractors?

Oslo leads with 5 headquartered companies, followed by Stavanger (4) and Bergen (3).

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 969 verified decision-maker contacts tracked across these 49 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 17, 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.