Company lists · Data refreshed September 2026

Top 25 Subsea completion systems manufacturers based in Norway

Name: Subsea completion systems manufacturers based in Norway
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 18, 2026 71 companies tracked

RevenueBase identified 71 subsea completion systems manufacturers headquartered in Norway as of September 2026 and tracks 2,512 professional contacts across them, including 843 with verified work emails. Stavanger is the largest hub.

This list covers subsea completion systems manufacturers 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 18, 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 18, 2026 86% judged on-target in blind review

71Companies

2,512Contacts tracked

843Verified emails

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The 25 largest subsea completion systems manufacturers based in Norway

Ranked by team size

Top 25 of 71 subsea completion systems manufacturers based in Norway, ranked by team size, largest first. Data refreshed Sep 18, 2026. RevenueBase Smart Search rates how each company's information relates to subsea completion systems manufacturers: 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	Mhwirth	Indirect evidence	Kristiansand, NorwayHQ checked Sep 18, 2026	1,001-5,000	560 contacts →
	Indirect evidence “October 2021.” Source: RevenueBase Database · checked Sep 18, 2026
2	Akofs Offshore	Partial evidence	Oslo, NorwayHQ checked Sep 18, 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 18, 2026
3	Imenco	Indirect evidence	Aksdal, NorwayHQ checked Sep 18, 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 18, 2026
4	Enhanced Drilling	Indirect evidence	Straume, NorwayHQ checked Sep 18, 2026	51-200	194 contacts →
	Indirect evidence “Innovative, enabling technology is at the very heart of Enhanced Drilling.” Source: RevenueBase Database · checked Sep 18, 2026
5	TCO AS	Strong evidence	Indre Arna, NorwayHQ checked Sep 18, 2026	51-200	103 contacts →
	Strong evidence “TCO is a Norwegian founded global oilfield service company, which specialises in the design, manufacture and installation of glass barrier plugs, chemical injection systems and…” Source: RevenueBase Database · checked Sep 18, 2026
6	Optime, A Halliburton Service	Partial evidence	Notodden, NorwayHQ checked Sep 18, 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 18, 2026
7	Technip India Limited	Indirect evidence	Sandvika, NorwayHQ checked Sep 18, 2026	51-200	59 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 18, 2026
8	Agility	Partial evidence	Skien, NorwayHQ checked Sep 18, 2026	51-200	53 contacts →
	Partial evidence “A Trusted Partner in Subsea Technology.” Source: RevenueBase Database · checked Sep 18, 2026
9	Subseadesign AS	Partial evidence	Lierbyen, NorwayHQ checked Sep 18, 2026	51-200	47 contacts →
	Partial evidence “SubseaDesign (SD) is an engineering, design and fabrication company providing equipment and services for the oil and gas industry.” Source: RevenueBase Database · checked Sep 18, 2026
10	Innova	Indirect evidence	Sandnes, NorwayHQ checked Sep 18, 2026	51-200	38 contacts →
	Indirect evidence “Established in 1997, Innova is a leading supplier of services, equipment and solutions to the international underwater industry.” Source: RevenueBase Database · checked Sep 18, 2026
11	Kystdesign	Partial evidence	Aksdal, NorwayHQ checked Sep 18, 2026	51-200	37 contacts →
	Partial evidence “KYSTDESIGN delivers a wide range of products for the subsea oil- and gas industry, renewables, research and fish farming.” Source: RevenueBase Database · checked Sep 18, 2026
12	Tomax AS	Partial evidence	Stavanger, NorwayHQ checked Sep 18, 2026	11-50	36 contacts →
	Partial evidence “Formed in 2005, Tomax is focused on developing technology for improving drilling efficiency with modern drilling systems.” Source: RevenueBase Database · checked Sep 18, 2026
13	PTC An Interwell Company	Indirect evidence	Stavanger, NorwayHQ checked Sep 18, 2026	51-200	32 contacts →
	Indirect evidence “PTC helps oil and gas production companies address two of their biggest challenges:* Increasing well uptime & production * Assuring & enhancing well integrity We do this, by…” Source: RevenueBase Database · checked Sep 18, 2026
14	Dwellop Group	Indirect evidence	Stavanger, NorwayHQ checked Sep 18, 2026	51-200	31 contacts →
	Indirect evidence “Dwellop Group is an independent Norwegian company delivering topside handling equipment for Well Intervention, WorkOver and P&A operations.” Source: RevenueBase Database · checked Sep 18, 2026
15	Fluid Control Service AS	Indirect evidence	Sola, NorwayHQ checked Sep 18, 2026	11-50	31 contacts →
	Indirect evidence “Fluid Control Service (FCS) is a leading provider of integrated fluid transfer solutions to the offshore and energy sectors.” Source: RevenueBase Database · checked Sep 18, 2026
16	Benestad Solutions AS	Strong evidence	Lierskogen, NorwayHQ checked Sep 18, 2026	11-50	28 contacts →
	Strong evidence “Benestad is a leading manufacturer of electrical penetrator & connection systems for subsea oil & gas industry and defense industry.” Source: RevenueBase Database · checked Sep 18, 2026
17	Envirex AS	Strong evidence	Bryne, NorwayHQ checked Sep 18, 2026	11-50	28 contacts →
	Strong evidence “Envirex’ engineering expertise delivers a wide range of products, systems and services for the subsea oil and gas industry.” Source: RevenueBase Database · checked Sep 18, 2026
18	Ulmatec Handling Solutions	Partial evidence	Hareid, NorwayHQ checked Sep 18, 2026	11-50	27 contacts →
	Partial evidence “MARINE TOOLS AND HANDLING SYSTEMS Ulmatec provides tailor-made marine tools and handling systems with improved performance and increased safety, dedicated to the offshore and…” Source: RevenueBase Database · checked Sep 18, 2026
19	Reelwell AS	Indirect evidence	Sola, NorwayHQ checked Sep 18, 2026	11-50	25 contacts →
	Indirect evidence “CONNECTING DOWNHOLE TO THE FUTURE With support in both Stavanger and Houston, Reelwell has developed pioneering technologies offering a step-change in well construction and…” Source: RevenueBase Database · checked Sep 18, 2026
20	Neodrill AS	Indirect evidence	Stavanger, NorwayHQ checked Sep 18, 2026	11-50	24 contacts →
	Indirect evidence “Neodrill’s focus is to make the construction of exploration and production wells cheaper, safer and more efficient by establishing a smarter well foundation, enabling pre-rig well…” Source: RevenueBase Database · checked Sep 18, 2026
21	Aarbakke Innovation AS	Indirect evidence	Bryne, NorwayHQ checked Sep 18, 2026	11-50	24 contacts →
	Indirect evidence “Aarbakke Innovation create products that address our clients’ technical and operational challenges.” Source: RevenueBase Database · checked Sep 18, 2026
22	Wellpartner AS	Strong evidence	Tananger, NorwayHQ checked Sep 18, 2026	51-200	23 contacts →
	Strong evidence “WellPartner AS is a service company that delivers technical expertise and high quality equipment and services within subsea drilling, completion and intervention operations.” Source: RevenueBase Database · checked Sep 18, 2026
23	Stinger Technology AS	Indirect evidence	Stavanger, NorwayHQ checked Sep 18, 2026	11-50	23 contacts →
	Indirect evidence “Stinger Technology AS is an innovative solution provider focusing on underwater wells monitoring, seabed surveys and jacket inspections.” Source: RevenueBase Database · checked Sep 18, 2026
24	Kvenna	Indirect evidence	Ålesund, NorwayHQ checked Sep 18, 2026	11-50	21 contacts →
	Indirect evidence “Kvenna is located in the beautiful city of Aalesund, Norway.” Source: RevenueBase Database · checked Sep 18, 2026
25	Deep C	Indirect evidence	Kristiansund, NorwayHQ checked Sep 18, 2026	11-50	21 contacts →
	Indirect evidence “Deep C provides Seabed Intervention Services that simply fit together.” Source: RevenueBase Database · checked Sep 18, 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 completion systems manufacturers. 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 completion systems manufacturers.
Partial evidence: Its own public description names part of subsea completion systems manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name subsea completion systems manufacturers. 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 71 subsea completion systems manufacturers based in Norway

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Subsea completion systems manufacturers based in Norway at a glance

As of Sep 18, 2026

33.6%Verified-email coverage

35.4Average contacts per company

11-50Median size (employees)

22.5%Largest-city concentration · Stavanger

Sep 18, 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 71 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 completion systems manufacturers, 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 completion systems manufacturers”. 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 completion systems manufacturers), 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 completion systems manufacturers, 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, 843 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 18, 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 subsea completion systems manufacturers, 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 completion systems manufacturers are there based in Norway?

RevenueBase identified 71 subsea completion systems manufacturers 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?

Mhwirth, headquartered in Kristiansand, tops this list with the largest team on record.

Which city has the most subsea completion systems manufacturers?

Stavanger leads with 16 headquartered companies, followed by Sandnes (6) and Bryne (4).

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 843 verified decision-maker contacts tracked across these 71 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 18, 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.