Company lists · Data refreshed November 2026

Top 25 Water system engineering firms based in Norway

RevenueBase identified 55 company matches for water system engineering firms associated with Norway as of November 2026 and tracks 561 professional contacts across them, including 206 with verified work emails. Oslo is the largest hub.

This list covers company matches for water system engineering firms 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 November 6, 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 Nov 6, 2026 How this list was built
55Companies
561Contacts tracked
206Verified emails
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The 25 largest water system engineering firms based in Norway

Ranked by team size
Top 25 of 55 company matches for water system engineering firms based in Norway, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchSandefjord, NorwayHQ recorded Nov 6, 2026201-50079 contacts →

Exact match

“ELIQUO PMI is one of Norway's leading contractors in the design and construction of plants for water and wastewater treatment, district heating, district cooling and process…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchStavanger, NorwayHQ recorded Nov 6, 202651-20066 contacts →

Exact match

“Prosjektil er et rådgivende ingeniørselskap innen bygg og anlegg.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchUlefoss, NorwayHQ recorded Nov 6, 2026201-50060 contacts →

Exact match

“Ulefos er et ledende nordisk selskap innen vannindustrien etablert i 1657, med over 300 ansatte i Norge, Sverige, Finland og Danmark.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchTrondheim, NorwayHQ recorded Nov 6, 202611-5018 contacts →

Exact match

“Structor Trondheim AS er et selvstendig rådgivningsselskap som er tilknyttet Structorgruppen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchStokke, NorwayHQ recorded Nov 6, 202611-5017 contacts →

Exact match

“I firmaet vårt tilbyr vi trygg og lønnsom prosjektering.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchElverum, NorwayHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“EM Prosjekt er et rådgivende ingeniørfirma med bred erfaring innen anleggstekniske fag.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchOslo, NorwayHQ recorded Nov 6, 202611-5011 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 · Nov 6, 2026 · View company records in RevenueBase
8Exact matchOslo, NorwayHQ recorded Nov 6, 202611-5011 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 · Nov 6, 2026 · View company records in RevenueBase
9Exact matchOslo, NorwayHQ recorded Nov 6, 202611-509 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 · Nov 6, 2026 · View company records in RevenueBase
10Exact matchRådal, NorwayHQ recorded Nov 6, 202611-509 contacts →

Exact match

“Vitek Miljø AS er en landsdekkende totalleverandør av tjenester innen vann og avløpssystemer.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchSpikkestad, NorwayHQ recorded Nov 6, 20261-107 contacts →

Exact match

“Engineering services, products for water treatment, process industry etc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchOslo, NorwayHQ recorded Nov 6, 20261-107 contacts →

Exact match

“VA Visjon sørger for at VA- og overvann i ditt prosjekt blir ivaretatt på en måte som skaper verdi for prosjektet.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchÅs, NorwayHQ recorded Nov 6, 202611-506 contacts →

Exact match

“Tjenester innen vann & avløp”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchDrammen, NorwayHQ recorded Nov 6, 20261-106 contacts →

Exact match

“BRIGHT rådgivende ingeniører vvs AS består av 7 ansatte med forskjellig bakgrunn som alle prosjekterer VVS-anlegg på Østlandet.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchSkoppum, NorwayHQ recorded Nov 6, 20261-105 contacts →

Exact match

“Rådgivende ingeniører innenfor vannforsynings- og avløpsanlegg, overvannshåndtering og veg- og utearealer.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchFillan, NorwayHQ recorded Nov 6, 20261-105 contacts →

Exact match

“Kystplan AS er et ingeniørfirma som utfører konsulenttjenester innenfor bygg og anlegg, med hovedvekt på planarbeid, byggesaksbistand og prosjektering innen vei, vann og avløp.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchOppegaard, NorwayHQ recorded Nov 6, 20261-105 contacts →

Exact match

“Appropriate Water Solutions Scandinavian Water Technology AS (Scanwater) has been a supplier to the water and wastewater sector since 1985 and has extensive experience, excellent…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchSarpsborg, NorwayHQ recorded Nov 6, 202611-504 contacts →

Exact match

“Lindhaugen AS er totalleverandør av av VA- grunn- og utomhusarbeider.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchStavanger, NorwayHQ recorded Nov 6, 20261-104 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchNorge, NorwayHQ recorded Nov 6, 20261-104 contacts →

Exact match

“Hydrofence delivers innovative engineering services focused on sustainability, technology, and the future of water management.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchOslo, NorwayHQ recorded Nov 6, 20261-104 contacts →

Exact match

“Våre medarbeider på VA Partner har lang erfaring med VA-prosjektering i alle ulike typer av prosjekter.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchBergen, NorwayHQ recorded Nov 6, 20261-104 contacts →

Exact match

“Haugen VVA AS er et uavhengig rådgivningsmiljø som tilbyr tjenester innen teknisk samfunnsplanlegging, hovedsakelig innen fagområdene veg, vann- og avløpsteknikk.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchFredrikstad/sarpsborg, NorwayHQ recorded Nov 6, 20261-104 contacts →

Exact match

“VVS Ingeniører”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchOslo, NorwayHQ recorded Nov 6, 20261-103 contacts →

Exact match

“Rivier AS består av drevne ingeniører som utfører rådgivning og prosjektering innen fagfeltene VVS, sprinkler og VA.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchOslo, NorwayHQ recorded Nov 6, 20261-103 contacts →

Exact match

“LEDENDE LEVERANDØR INNEN INNREGULEING OG MERKING AV VVS-ANLEGG Inva Engineering AS er en byggteknisk konsulentvirksomhet med spesialisering innen vannbåren energi.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 55 water system engineering firms based in Norway

See the full list, filter by size, metro and specialty, and access 206 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Water system engineering firms based in Norway at a glance

As of Nov 6, 2026
36.7%Verified-email coverage
10.2Average contacts per company
1-10Median size (employees)
23.6%Largest-city concentration · Oslo
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
33
11-50
16
51-200
3
201-500
3

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 55 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 “water system engineering firms” 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 206 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 November 6, 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 “water system engineering firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many water system engineering firms are there based in Norway?

RevenueBase identified 55 company matches for water system engineering firms associated with Norway as of November 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?

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

Which city has the most water system engineering firms?

Oslo leads with 13 company records, followed by Sandefjord (3) and Stavanger (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 206 professional contacts with verified work emails tracked across these 55 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 November 6, 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.