Company lists · Data refreshed November 2026

Top 25 Wastewater consultants based in Norway

RevenueBase identified 129 company matches for wastewater consultants associated with Norway as of November 2026 and tracks 1,216 professional contacts across them, including 408 with verified work emails. Oslo is the largest hub.

This list covers company matches for wastewater consultants 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
129Companies
1,216Contacts tracked
408Verified emails
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The 25 largest wastewater consultants based in Norway

Ranked by team size
Top 25 of 129 company matches for wastewater consultants 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 matchSandnes, NorwayHQ recorded Nov 6, 202651-20096 contacts →

Exact match

“Soiltech ASA is a cleantech service provider specializing in the handling, treatment and recycling of contaminated water and solid industrial waste.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact 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
3Exact matchSlemmestad, NorwayHQ recorded Nov 6, 202651-20063 contacts →

Exact match

“Veas renser avløpsvannet fra innbyggerne i Oslo, Asker, Bærum og Nesodden kommune.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchStrømmen, NorwayHQ recorded Nov 6, 202651-20060 contacts →

Exact match

“Gjennom en langsiktig og bærekraftig forvaltning av vannressursene skal vi bidra med: Rent vann – for deg, miljøet og fremtiden.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchTønsberg, NorwayHQ recorded Nov 6, 202611-5037 contacts →

Exact match

“Biowater Technology is a leader in the design and development of environmentally friendly biological solutions for wastewater treatment.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchHamar, NorwayHQ recorded Nov 6, 202611-5031 contacts →

Exact match

“Norwegian Water BA (In Norwegian: Norsk Vann BA) is a national association of water and wastewater works.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchFrogner, NorwayHQ recorded Nov 6, 202611-5029 contacts →

Exact match

“Biovac leverer produkter og skreddersydde løsninger for behandling av avløpsvann til private, kommunale og industrielle kunder.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchSande, NorwayHQ recorded Nov 6, 202651-20029 contacts →

Exact match

“Kjeldaas er en ledende bedrift innen anleggsbransjen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchSandefjord, NorwayHQ recorded Nov 6, 202611-5027 contacts →

Exact match

“Veolia leverer totale løsninger for avløpsrensing, vannbehandling, rehabilitering og service, til kommuner og industri i Norge.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchDrammen, NorwayHQ recorded Nov 6, 202611-5024 contacts →

Exact match

“Nordisk Vannteknikk er en totalleverandør av renseteknologi for behandling av forurenset vann.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchNamsos, NorwayHQ recorded Nov 6, 202611-5023 contacts →

Exact match

“Salsnes Filter is a Norwegian provider of wastewater treatment solutions for municipal and industrial applications.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchSandnes, NorwayHQ recorded Nov 6, 2026201-50019 contacts →

Exact match

“Østraadt Rør Gruppen er totalleverandører av avløpssystemer og spesialprodukter i betong.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchSandefjord, NorwayHQ recorded Nov 6, 202611-5019 contacts →

Exact match

“Allum Engineering: Engineering Solutions to Process, Marine and Offshore Industries Allum Technology: Technology Development and delivery of CFU and treatment plants for produced…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact 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
15Exact matchSola, NorwayHQ recorded Nov 6, 202611-5017 contacts →

Exact match

“IKM Fluid Treatment Solutions has built its reputation on over 30 years of global expertise within drilling waste management.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchBergen, NorwayHQ recorded Nov 6, 202611-5016 contacts →

Exact match

“M Vest Water is a system and solution provider of clean and safe water.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchTananger, NorwayHQ recorded Nov 6, 202611-5015 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 · Nov 6, 2026 · View company records in RevenueBase
18Exact matchSentrum, NorwayHQ recorded Nov 6, 20261-1013 contacts →

Exact match

“Norwaste is a new consultancy with highly experienced staff members.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact 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
20Exact 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
21Exact matchOslo, NorwayHQ recorded Nov 6, 20261-1010 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 · Nov 6, 2026 · View company records in RevenueBase
22Exact matchLillestrøm, NorwayHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“Enestor is a Norwegian consulting company, and our employees possess unique expertise in project and engineering management, mechanical design, control systems, control…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchMekjarvik, NorwayHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“We provide services for the development of sustainable waste treatment solutions for offshore and onshore industry and municipal applications using proprietary treatment…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchNarvik, NorwayHQ recorded Nov 6, 202611-509 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact 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

Showing 25 of 129 wastewater consultants based in Norway

See the full list, filter by size, metro and specialty, and access 408 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Wastewater consultants based in Norway at a glance

As of Nov 6, 2026
33.6%Verified-email coverage
9.4Average contacts per company
1-10Median size (employees)
15.5%Largest-city concentration · Oslo
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
72
11-50
40
51-200
11
201-500
4

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 129 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 “wastewater consultants” 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 408 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 “wastewater consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many wastewater consultants are there based in Norway?

RevenueBase identified 129 company matches for wastewater consultants 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?

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

Which city has the most wastewater consultants?

Oslo leads with 20 company records, followed by Sandefjord (7) and Bergen (5).

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 408 professional contacts with verified work emails tracked across these 129 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.