Company lists · Data refreshed October 2026

Top 25 Industrial water system maintenance companies based in Norway

Name: Industrial water system maintenance companies based in Norway
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 16, 2026 40 companies tracked

RevenueBase identified 40 company matches for industrial water system maintenance companies associated with Norway as of October 2026 and tracks 252 professional contacts across them, including 120 with verified work emails. Oslo is the largest hub.

This list covers company matches for industrial water system maintenance companies 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 October 16, 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 Oct 16, 2026 How this list was built

40Companies

252Contacts tracked

120Verified emails

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The 25 largest industrial water system maintenance companies based in Norway

Ranked by team size

Top 25 of 40 company matches for industrial water system maintenance companies based in Norway, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 16, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Nordisk Vannteknikk AS	Exact match	Drammen, NorwayHQ recorded Oct 16, 2026	11-50	24 contacts →
	Exact match “Nordisk Vannteknikk er en totalleverandør av renseteknologi for behandling av forurenset vann.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
2	IKM Promech AS	Exact match	Sola, NorwayHQ recorded Oct 16, 2026	11-50	15 contacts →
	Exact match “IKM Promech provides new sales, comprehensive pump repair and services on various pump types including centrifugal, vacuum, mud, circulating, submersible and others.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
3	Snersrud & Pedersen AS	Exact match	Asker, NorwayHQ recorded Oct 16, 2026	11-50	13 contacts →
	Exact match “Snersrud & Pedersen AS (S&P) er en solid VVS aktør med en god og økende kundebase.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
4	Onsite Treatment Services	Exact match	Tananger, NorwayHQ recorded Oct 16, 2026	11-50	13 contacts →
	Exact match “OTS offers a large and modern rental fleet, water treatment, slop treatment, tank cleaning, filtration, cuttings handling, vacuum systems, mud skips, well service pumps, pumping…” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
5	Sunnhordland Mek. Verksted SMV AS	Exact match	Skånevik, NorwayHQ recorded Oct 16, 2026	11-50	11 contacts →
	Exact match “SMV was founded in 1958 and has a wealth of experience as a supplier to a variety of markets.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
6	BWT Norge	Exact match	Oslo, NorwayHQ recorded Oct 16, 2026	11-50	11 contacts →
	Exact match “BWT Birger Christensen AS ble startet i 1928 og er blant Nordens førende virksomheter innen vannbehandlingsanlegg.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
7	Ceva AS	Exact match	Oslo, NorwayHQ recorded Oct 16, 2026	11-50	11 contacts →
	Exact match “CEVA AS er en tverrfaglig servicebedrift som tilbyr rørleggertjenester, tekniske servicekontroller og vannbehandling til det offentlige, private og næringsbygg.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
8	Multi Solutions AS	Exact match	Sunde, NorwayHQ recorded Oct 16, 2026	1-10	10 contacts →
	Exact match “Providing goods and services to the marine / offshore.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
9	Envatec AS	Exact match	Krokkleiva, NorwayHQ recorded Oct 16, 2026	11-50	9 contacts →
	Exact match “SPESIALIST PÅ INDUSTRIELLE HVAC-SYSTEMER Envatec er spesialist på service- og ettermarked i energi- og vannbårne systemer.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
10	Global Concept Mitco AS	Exact match	Oslo, NorwayHQ recorded Oct 16, 2026	11-50	8 contacts →
	Exact match “Global Concept MITCO AS (tidligere Industrikjemikalier MITCO AS) bygger på mer enn 40 års erfaring innen fagområdet industriell vannbehandling.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
11	Vulkan Engineering	Exact match	Oslo, NorwayHQ recorded Oct 16, 2026	1-10	8 contacts →
	Exact match “Vulkan Engineering AS is a leader in advanced seawater treatment systems and specialized engineering services to the international offshore industry.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
12	Teleklima	Exact match	Porsgrunn, NorwayHQ recorded Oct 16, 2026	11-50	8 contacts →
	Exact match “Teleklima er lokalisert i Porsgrunn og har over 40 års fartstid innen prosjektering og montering av ventilasjon, automasjon og service.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
13	Bergen Rørteknikk	Exact match	Godvik, NorwayHQ recorded Oct 16, 2026	51-200	6 contacts →
	Exact match “Bergen Rørteknikk AS er en total VVS og VA teknisk entreprenør.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
14	Niprox Technology AS	Exact match	Florø, NorwayHQ recorded Oct 16, 2026	11-50	6 contacts →
	Exact match “Niprox leverer vannbehandlingsteknologi for lukkede vannbårne varme- og kjøleanlegg.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
15	Avavi AS	Exact match	Ås, NorwayHQ recorded Oct 16, 2026	11-50	6 contacts →
	Exact match “Tjenester innen vann & avløp” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
16	Eiwa AS	Exact match	Karmsund, NorwayHQ recorded Oct 16, 2026	1-10	5 contacts →
	Exact match “Eiwa AS er en fleksibel rørleggerbedrift på Haugalandet som på kort tid har opparbeidet en sterk portefølje med bra kunder og samarbeidspartnere.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
17	Driftsteknikk AS	Exact match	Karlshus, NorwayHQ recorded Oct 16, 2026	11-50	5 contacts →
	Exact match “Driftsteknikk AS er i dag ledende på salg, service og ettersyn av pumper, pumpestasjoner og luktfjerning, samt utvikling av styringsautomatikk og industriell elektronikk.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
18	Østlandske VVS	Exact match	Oslo, NorwayHQ recorded Oct 16, 2026	51-200	5 contacts →
	Exact match “Since our inception in 2002, we have established ourselves as a reliable turnkey provider of advanced piping systems for both residential and commercial properties.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
19	Pumpeteknikk AS	Exact match	Drøbak, NorwayHQ recorded Oct 16, 2026	1-10	4 contacts →
	Exact match “Med over 20 års erfaring kombinerer Pumpeteknikk AS god service og solid kompetanse med fleksible løsninger.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
20	Dale Kjøleservice AS	Exact match	Holmefjord, NorwayHQ recorded Oct 16, 2026	11-50	4 contacts →
	Exact match “Dale Kjøleservice AS er en kuldeentreprenør med arbeidsområde hovedsaklig i Bergen og Hordaland, men også i Rogaland og hele Vestland fylke.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
21	Martinsen & Brodahl	Exact match	Oslo, NorwayHQ recorded Oct 16, 2026	1-10	2 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
22	Odin Maskin AS	Exact match	Gressvik, NorwayHQ recorded Oct 16, 2026	11-50	1 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
23	Selebø Rørservice AS	Exact match	Hauge I Dalane, NorwayHQ recorded Oct 16, 2026	11-50	1 contacts →
	Exact match “We deliver high-quality HVAC services for both small and large needs, with specialist expertise in everything from district heating and cooling systems to the decommissioning of…” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
24	Moelv Rørservice AS	Exact match	Moelv, NorwayHQ recorded Oct 16, 2026	1-10	1 contacts →
	Exact match “Moelv Rørservice AS is a construction company based out of 102 Storgata, Moelv, Norway.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
25	Thomassen RØR AS	Exact match	NorwayHQ recorded Oct 16, 2026	1-10	1 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “industrial water system maintenance companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 40 industrial water system maintenance companies based in Norway

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Industrial water system maintenance companies based in Norway at a glance

As of Oct 16, 2026

47.6%Verified-email coverage

6.3Average contacts per company

11-50Median size (employees)

20.0%Largest-city concentration · Oslo

Oct 16, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 40 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 “industrial water system maintenance companies” 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 120 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 October 16, 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 “industrial water system maintenance companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many industrial water system maintenance companies are there based in Norway?

RevenueBase identified 40 company matches for industrial water system maintenance companies associated with Norway as of October 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?

Nordisk Vannteknikk AS tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most industrial water system maintenance companies?

Oslo leads with 8 company records, followed by Drammen (2) and Arendal (1).

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 120 professional contacts with verified work emails tracked across these 40 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 October 16, 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 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.