Company lists · Data refreshed September 2026

Top 25 Civil contractors specializing in water based in Norway

RevenueBase identified 112 civil contractors specializing in water headquartered in Norway as of September 2026 and tracks 1,045 professional contacts across them, including 279 with verified work emails. Oslo is the largest hub.

This list covers civil contractors specializing in water 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 16, 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 16, 2026 86% judged on-target in blind review
112Companies
1,045Contacts tracked
279Verified emails
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The 25 largest civil contractors specializing in water based in Norway

Ranked by team size
Top 25 of 112 civil contractors specializing in water based in Norway, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to civil contractors specializing in water: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Strong evidenceSandefjord, NorwayHQ checked Sep 16, 2026201-50081 contacts →

Strong evidence

“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…”

Source: RevenueBase Database · checked Sep 16, 2026
2Indirect evidenceLysaker, NorwayHQ checked Sep 16, 202651-20064 contacts →

Indirect evidence

“HAB Construction er godt etablert i entreprenørbransjen og har siden selskapets oppstart i 2003 opparbeidet seg en spennende prosjektportefølje.”

Source: RevenueBase Database · checked Sep 16, 2026
3Indirect evidenceLillehammer, NorwayHQ checked Sep 16, 2026201-50060 contacts →

Indirect evidence

“Anlegg Øst Entreprenør er en anleggsentreprenør i det nasjonale markedet med hovedfokus på Østlandet og administrasjon lokalisert på Lillehammer.”

Source: RevenueBase Database · checked Sep 16, 2026
4Indirect evidenceKvamsøy, NorwayHQ checked Sep 16, 202651-20039 contacts →

Indirect evidence

“Rent vann – kilden til liv og velferd.”

Source: RevenueBase Database · checked Sep 16, 2026
5Indirect evidenceSøgne, NorwayHQ checked Sep 16, 2026201-50038 contacts →

Indirect evidence

“Repstad Anlegg AS er en av Sørlandets største maskinentreprenører og har lang erfaring og kompetanse innenfor totalprosjekter innen tomteutbygging, vei, vann og avløp.”

Source: RevenueBase Database · checked Sep 16, 2026
6Indirect evidenceDrammen, NorwayHQ checked Sep 16, 202651-20027 contacts →

Indirect evidence

“Aktiv Veidrift ble grunnlagt i 2002.”

Source: RevenueBase Database · checked Sep 16, 2026
7Indirect evidenceSande, NorwayHQ checked Sep 16, 202651-20024 contacts →

Indirect evidence

“Kjeldaas er en ledende bedrift innen anleggsbransjen.”

Source: RevenueBase Database · checked Sep 16, 2026
8Indirect evidenceOslo, NorwayHQ checked Sep 16, 202651-20019 contacts →

Indirect evidence

“Viking Entreprenør A/S ble stiftet 1.”

Source: RevenueBase Database · checked Sep 16, 2026
9Indirect evidenceBjørnevatn, NorwayHQ checked Sep 16, 202651-20015 contacts →

Indirect evidence

“Vår grunnholdning er "Anleggsarbeide med omtanke"!”

Source: RevenueBase Database · checked Sep 16, 2026
10Indirect evidenceBergen, NorwayHQ checked Sep 16, 202651-20013 contacts →

Indirect evidence

“Grevstad & Tvedt VVS er en moderne VVS-entreprenør som er rigget for oppdrag innen de fleste segmenter i proff- og privatmarkedet.”

Source: RevenueBase Database · checked Sep 16, 2026
11Indirect evidenceRevsnes, NorwayHQ checked Sep 16, 202651-20012 contacts →

Indirect evidence

“Tore Løkke A/S is a construction company based out of Stokksundveien 1010, REVSNES, Åfjord, Norway.”

Source: RevenueBase Database · checked Sep 16, 2026
12Indirect evidenceVear, NorwayHQ checked Sep 16, 202611-5011 contacts →

Indirect evidence

“I over 60 år har Oskar og Tormod Wike AS vært en maskinentreprenør med dyktige og engasjerte medarbeidere som utfører oppdrag innen: Grunnarbeid, VA-anlegg, veibygging…”

Source: RevenueBase Database · checked Sep 16, 2026
13Indirect evidenceGodvik, NorwayHQ checked Sep 16, 202611-5011 contacts →

Indirect evidence

“Hylland AS har siden oppstarten i 1998 vært en pålitelig og profesjonell tjenesteleverandør med lojale kunder.”

Source: RevenueBase Database · checked Sep 16, 2026
14Indirect evidenceAlvdal, NorwayHQ checked Sep 16, 2026201-5008 contacts →

Indirect evidence

“Gjermundshaug Anlegg er en samfunnsbevisst og innovativ aktør i anleggsbransjen, har solid økonomi, setter pris på erfaring og legger til rette for faglig videreutvikling.”

Source: RevenueBase Database · checked Sep 16, 2026
15Indirect evidenceStjørdal, NorwayHQ checked Sep 16, 202611-508 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026
16Indirect evidenceBlomsterdalen /florø, NorwayHQ checked Sep 16, 202651-2008 contacts →

Indirect evidence

“Allbygg er en leverandør av entreprenørtjenester på Vestlandet.”

Source: RevenueBase Database · checked Sep 16, 2026
17Indirect evidenceOslo, NorwayHQ checked Sep 16, 20261-107 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 16, 2026
18Indirect evidenceSandefjord, NorwayHQ checked Sep 16, 202651-2007 contacts →

Indirect evidence

“Carl C.”

Source: RevenueBase Database · checked Sep 16, 2026
19Indirect evidenceGodvik, NorwayHQ checked Sep 16, 202651-2006 contacts →

Indirect evidence

“Bergen Rørteknikk AS er en total VVS og VA teknisk entreprenør.”

Source: RevenueBase Database · checked Sep 16, 2026
20Indirect evidenceSandefjord, NorwayHQ checked Sep 16, 202611-506 contacts →

Indirect evidence

“Vi er et veletablert entreprenørfirma som utfører alt innen grunnarbeider, vann og avløp, transport og dokumentasjon.”

Source: RevenueBase Database · checked Sep 16, 2026
21Indirect evidenceFauske, NorwayHQ checked Sep 16, 202651-2006 contacts →

Indirect evidence

“Grunnarbeid, veibygging, masseforflytting, konsulenttjenester, vann og avløp m.m.”

Source: RevenueBase Database · checked Sep 16, 2026
22Indirect evidenceTrondheim, NorwayHQ checked Sep 16, 202611-506 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026
23Indirect evidenceRanheim, NorwayHQ checked Sep 16, 202611-506 contacts →

Indirect evidence

“Grunnarbeid Entreprenør AS omstrukturert i 2021, men ble stiftet i 2012 og historisk har vi røtter tilbake til midten av 80-tallet.”

Source: RevenueBase Database · checked Sep 16, 2026
24Indirect evidenceDrammen, NorwayHQ checked Sep 16, 202651-2005 contacts →

Indirect evidence

“Strøm Gundersen er en entreprenørbedrift innen bygg og anlegg.”

Source: RevenueBase Database · checked Sep 16, 2026
25Indirect evidenceBergen, NorwayHQ checked Sep 16, 202611-504 contacts →

Indirect evidence

“Byggmester- og entreprenørfirma.”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 25 of 112 civil contractors specializing in water based in Norway

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Civil contractors specializing in water based in Norway at a glance

As of Sep 16, 2026
26.7%Verified-email coverage
9.3Average contacts per company
11-50Median size (employees)
8.9%Largest-city concentration · Oslo
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
51
11-50
34
51-200
21
201-500
5
10001+
1

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 112 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 civil contractors specializing in water, 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 “civil contractors specializing in water”. 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 civil contractors specializing in water), 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 civil contractors specializing in water, 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, 279 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 16, 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 civil contractors specializing in water, 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 civil contractors specializing in water are there based in Norway?

RevenueBase identified 112 civil contractors specializing in water 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?

Eliquo PMI, headquartered in Sandefjord, tops this list with the largest team on record.

Which city has the most civil contractors specializing in water?

Oslo leads with 10 headquartered companies, followed by Sandefjord (5) and Tromso (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 279 verified decision-maker contacts tracked across these 112 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 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 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.