Company lists · Data refreshed September 2026

Top 25 Wastewater treatment biotechnology companies based in Norway

Name: Wastewater treatment biotechnology companies based in Norway
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 67 companies tracked

RevenueBase identified 67 wastewater treatment biotechnology companies headquartered in Norway as of September 2026 and tracks 883 professional contacts across them, including 335 with verified work emails. Oslo is the largest hub.

This list covers wastewater treatment biotechnology companies 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 19, 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 19, 2026 86% judged on-target in blind review

67Companies

883Contacts tracked

335Verified emails

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The 25 largest wastewater treatment biotechnology companies based in Norway

Ranked by team size

Top 25 of 67 wastewater treatment biotechnology companies based in Norway, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to wastewater treatment biotechnology companies: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Jets Group	Indirect evidence	Hareid, NorwayHQ checked Sep 19, 2026	51-200	135 contacts →
	Indirect evidence “Pioneering eco-efficient technology We help improve the world through pioneering technology that minimises stress on the planet's most vulnerable resources.” Source: RevenueBase Database · checked Sep 19, 2026
2	CAMBI	Strong evidence	Asker, NorwayHQ checked Sep 19, 2026	51-200	129 contacts →
	Strong evidence “Cambi is the world's leading provider and pioneer of thermal hydrolysis process or THP, a sludge treatment method transforming the wastewater industry.” Source: RevenueBase Database · checked Sep 19, 2026
3	Soiltech ASA	Partial evidence	Sandnes, NorwayHQ checked Sep 19, 2026	51-200	86 contacts →
	Partial evidence “Soiltech ASA is a cleantech service provider specializing in the handling, treatment and recycling of contaminated water and solid industrial waste.” Source: RevenueBase Database · checked Sep 19, 2026
4	Eagle Technology AS	Indirect evidence	Halden, NorwayHQ checked Sep 19, 2026	51-200	57 contacts →
	Indirect evidence “Eagle Technology is a provider of environmentally friendly and sustainable technology systems and solutions.” Source: RevenueBase Database · checked Sep 19, 2026
5	Biowater Technology AS	Strong evidence	Tønsberg, NorwayHQ checked Sep 19, 2026	11-50	40 contacts →
	Strong evidence “Biowater Technology is a leader in the design and development of environmentally friendly biological solutions for wastewater treatment.” Source: RevenueBase Database · checked Sep 19, 2026
6	Biovac Environmental Technology AS	Indirect evidence	Frogner, NorwayHQ checked Sep 19, 2026	11-50	28 contacts →
	Indirect evidence “Biovac leverer produkter og skreddersydde løsninger for behandling av avløpsvann til private, kommunale og industrielle kunder.” Source: RevenueBase Database · checked Sep 19, 2026
7	Veolia Water Tech Norge	Indirect evidence	Sandefjord, NorwayHQ checked Sep 19, 2026	11-50	27 contacts →
	Indirect evidence “Veolia leverer totale løsninger for avløpsrensing, vannbehandling, rehabilitering og service, til kommuner og industri i Norge.” Source: RevenueBase Database · checked Sep 19, 2026
8	Salsnes Filter	Strong evidence	Namsos, NorwayHQ checked Sep 19, 2026	11-50	22 contacts →
	Strong evidence “Salsnes Filter’s patented filter technology for wastewater treatment and effluent treatment is leading the Norwegian market in municipal primary treatment.” Source: RevenueBase Database · checked Sep 19, 2026
9	Nordisk Vannteknikk AS	Indirect evidence	Drammen, NorwayHQ checked Sep 19, 2026	11-50	18 contacts →
	Indirect evidence “Nordisk Vannteknikk er en totalleverandør av renseteknologi for behandling av forurenset vann.” Source: RevenueBase Database · checked Sep 19, 2026
10	Renasys	Indirect evidence	Førde, NorwayHQ checked Sep 19, 2026	11-50	18 contacts →
	Indirect evidence “Life in fjords around the world is being suffocated.” Source: RevenueBase Database · checked Sep 19, 2026
11	IKM Fluid Treatment Solutions	Partial evidence	Sola, NorwayHQ checked Sep 19, 2026	11-50	17 contacts →
	Partial evidence “IKM Fluid Treatment Solutions has built its reputation on over 30 years of global expertise within drilling waste management.” Source: RevenueBase Database · checked Sep 19, 2026
12	M Vest Water	Indirect evidence	Bergen, NorwayHQ checked Sep 19, 2026	11-50	16 contacts →
	Indirect evidence “M Vest Water is a system and solution provider of clean and safe water.” Source: RevenueBase Database · checked Sep 19, 2026
13	Doscon AS	Indirect evidence	Økern, NorwayHQ checked Sep 19, 2026	11-50	13 contacts →
	Indirect evidence “DOSCON is an innovative company working with environmental and industrial process analytics.” Source: RevenueBase Database · checked Sep 19, 2026
14	Thermtech AS	Indirect evidence	Bergen, NorwayHQ checked Sep 19, 2026	11-50	13 contacts →
	Indirect evidence “Thermtech is a Norwegian technology company with head office in Bergen, Norway.” Source: RevenueBase Database · checked Sep 19, 2026
15	Entec Group AS	Indirect evidence	Ulsteinvik, NorwayHQ checked Sep 19, 2026	51-200	13 contacts →
	Indirect evidence “Entec er kort for «environmental technology», og er et teknologikonsern bestående av tre driftsselskap; ENTEC Evotec, ENTEC Brimer og ENTEC Norpartners.” Source: RevenueBase Database · checked Sep 19, 2026
16	BWT Norge	Indirect evidence	Oslo, NorwayHQ checked Sep 19, 2026	11-50	11 contacts →
	Indirect evidence “BWT Birger Christensen AS ble startet i 1928 og er blant Nordens førende virksomheter innen vannbehandlingsanlegg.” Source: RevenueBase Database · checked Sep 19, 2026
17	Norwegian Technology	Partial evidence	Mekjarvik, NorwayHQ checked Sep 19, 2026	11-50	10 contacts →
	Partial evidence “We provide services for the development of sustainable waste treatment solutions for offshore and onshore industry and municipal applications using proprietary treatment…” Source: RevenueBase Database · checked Sep 19, 2026
18	Global Concept Mitco AS	Indirect evidence	Oslo, NorwayHQ checked Sep 19, 2026	11-50	8 contacts →
	Indirect evidence “Global Concept MITCO AS (tidligere Industrikjemikalier MITCO AS) bygger på mer enn 40 års erfaring innen fagområdet industriell vannbehandling.” Source: RevenueBase Database · checked Sep 19, 2026
19	Bioretur	Indirect evidence	Nesttun, NorwayHQ checked Sep 19, 2026	11-50	8 contacts →
	Indirect evidence “Fra Bioretur får du idag tilgang til den beste teknologien for slambehandling for oppdrettsnæringen, samtidig som du får en partner som tar hånd om slammet fra problem til…” Source: RevenueBase Database · checked Sep 19, 2026
20	Normex	Partial evidence	Ålesund, NorwayHQ checked Sep 19, 2026	1-10	8 contacts →
	Partial evidence “We deliver the best possible quality solutions for water treatment and disinfection.” Source: RevenueBase Database · checked Sep 19, 2026
21	Stauper Water Technologies	Partial evidence	Porsgrunn, NorwayHQ checked Sep 19, 2026	1-10	8 contacts →
	Partial evidence “Stauper Water Technologies AS is a Norwegian water treatment technology company that has developed, patented and commercialized a suite of technologies and solutions to help oil…” Source: RevenueBase Database · checked Sep 19, 2026
22	Vulkan Engineering	Partial evidence	Oslo, NorwayHQ checked Sep 19, 2026	1-10	6 contacts →
	Partial evidence “Vulkan Engineering AS is a leader in advanced seawater treatment systems and specialized engineering services to the international offshore industry.” Source: RevenueBase Database · checked Sep 19, 2026
23	Slamrensing AS	Indirect evidence	Revetal, NorwayHQ checked Sep 19, 2026	1-10	6 contacts →
	Indirect evidence “Vannrensing- og sedimenteringsselskap med høyt fokus på miljø.” Source: RevenueBase Database · checked Sep 19, 2026
24	Ennox Technology	Partial evidence	Stavanger, NorwayHQ checked Sep 19, 2026	11-50	6 contacts →
	Partial evidence “Ennox Technology delivers customized technological solutions for water treatment, oil recovery, waste management, and soil remediation, helping industries optimize efficiency and…” Source: RevenueBase Database · checked Sep 19, 2026
25	Cevia Solutions	Partial evidence	Spikkestad, NorwayHQ checked Sep 19, 2026	1-10	4 contacts →
	Partial evidence “Engineering services, products for water treatment, process industry etc.” Source: RevenueBase Database · checked Sep 19, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: wastewater treatment biotechnology companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names wastewater treatment biotechnology companies.
Partial evidence: Its own public description names part of wastewater treatment biotechnology companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name wastewater treatment biotechnology companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 67 wastewater treatment biotechnology companies based in Norway

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Wastewater treatment biotechnology companies based in Norway at a glance

As of Sep 19, 2026

37.9%Verified-email coverage

13.2Average contacts per company

11-50Median size (employees)

11.9%Largest-city concentration · Oslo

Sep 19, 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 67 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 wastewater treatment biotechnology companies, 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 “wastewater treatment biotechnology companies”. 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 wastewater treatment biotechnology companies), 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 wastewater treatment biotechnology companies, 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, 335 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 19, 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 wastewater treatment biotechnology companies, 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 wastewater treatment biotechnology companies are there based in Norway?

RevenueBase identified 67 wastewater treatment biotechnology companies 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?

Jets Group, headquartered in Hareid, tops this list with the largest team on record.

Which city has the most wastewater treatment biotechnology companies?

Oslo leads with 8 headquartered companies, followed by Bergen (4) and Sandefjord (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 335 verified decision-maker contacts tracked across these 67 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 19, 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.