Company lists · Data refreshed October 2026

Top 21 Industrial water maintenance contractors based in Norway

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

Compiled by the RevenueBase Data Team Data refreshed Oct 16, 2026 36 companies tracked

RevenueBase identified 36 company matches for industrial water maintenance contractors associated with Norway as of October 2026 and tracks 261 professional contacts across them, including 100 with verified work emails. Oslo is the largest hub.

This list covers company matches for industrial water maintenance contractors 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

36Companies

261Contacts tracked

100Verified emails

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The 21 largest industrial water maintenance contractors based in Norway

Ranked by team size

Top 21 of 36 company matches for industrial water maintenance contractors 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	Norva24 Group	Exact match	Oslo, NorwayHQ recorded Oct 16, 2026	1,001-5,000	37 contacts →
	Exact match “Norva24 was established in 2015, when a group of smaller local companies merged and formed a large group across regions.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
2	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
3	Ibka Norge	Exact match	Lysaker, NorwayHQ recorded Oct 16, 2026	51-200	23 contacts →
	Exact match “The Industrial Cleaning Specialists IBKA is a leading company within the industrial cleaning industry.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
4	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
5	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
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	Nordic Green Products AS	Exact match	Bergen, NorwayHQ recorded Oct 16, 2026	11-50	11 contacts →
	Exact match “At Nordic Green Products, we deliver smart, sustainable solutions for the maritime and industrial sectors.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
9	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
10	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
11	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
12	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
13	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
14	Slamrensing AS	Exact match	Revetal, NorwayHQ recorded Oct 16, 2026	1-10	6 contacts →
	Exact match “Vannrensing- og sedimenteringsselskap med høyt fokus på miljø.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
15	bluepower.as	Exact match	Porsgrunn/skien, NorwayHQ recorded Oct 16, 2026	1-10	6 contacts →
	Exact match “Bluepower provides no-entry silo cleaning that keeps industrial operations running, without confined space entry.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
16	Vitek AS	Exact match	Bergen, NorwayHQ recorded Oct 16, 2026	51-200	6 contacts →
	Exact match “Vitek AS ble grunnlagt i 1983 og er etablert med hovedkontor i Bergen.” 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	Lekkasjeteknikk AS	Exact match	Oslo, NorwayHQ recorded Oct 16, 2026	1-10	3 contacts →
	Exact match “LekkasjeTeknikk AS har høy kompetanse innen gravearbeider, vannlekkasjer, brudd på spillvannledninger, rehablitering, rørinspeksjon, høytrykkspyling og rengjøring av vann- og…” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
19	Stake & Graveservice AS	Exact match	Oslo, NorwayHQ recorded Oct 16, 2026	11-50	2 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
20	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
21	Haugaland Rørspyling AS	Exact match	Haugesund, NorwayHQ recorded Oct 16, 2026	1-10	1 contacts →
	Exact match “Haugaland rørspyling holder til i Haugesund og leverer tjenester innen rørspyling og vedlikehold til Tysvær, Haugesund, Karmøy, Sveio og resten av Haugalandet.” 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 maintenance contractors”. 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 21 of 36 industrial water maintenance contractors based in Norway

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Industrial water maintenance contractors based in Norway at a glance

As of Oct 16, 2026

38.3%Verified-email coverage

7.2Average contacts per company

11-50Median size (employees)

19.4%Largest-city concentration · Oslo

Oct 16, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 36 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 maintenance contractors” 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 100 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 maintenance contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many industrial water maintenance contractors are there based in Norway?

RevenueBase identified 36 company matches for industrial water maintenance contractors 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?

Norva24 Group tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most industrial water maintenance contractors?

Oslo leads with 7 company records, followed by Drammen (2) and Lysaker (2).

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 100 professional contacts with verified work emails tracked across these 36 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.