Company lists · Data refreshed September 2026

Top 13 Water resource management firms based in Denmark

RevenueBase identified 30 water resource management firms headquartered in Denmark as of September 2026 and tracks 1,956 professional contacts across them, including 141 with verified work emails. Copenhagen is the largest hub.

This list covers water resource management firms headquartered in Denmark, 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 22, 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 22, 2026 86% judged on-target in blind review
30Companies
1,956Contacts tracked
141Verified emails
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The 13 largest water resource management firms based in Denmark

Ranked by team size
Top 13 of 30 water resource management firms based in Denmark, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to water resource management firms: 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
1Partial evidenceHørsholm, DenmarkHQ checked Sep 22, 20261,001-5,0001,427 contacts →

Partial evidence

“There is no substitute for water.”

Source: RevenueBase Database · checked Sep 22, 2026
2Indirect evidenceHellerup, DenmarkHQ checked Sep 22, 202611-5044 contacts →

Indirect evidence

“ØLLGAARD Rådgivende Ingeniører har specialiseret sig i bæredygtige løsninger inden for forsyning, byggeri og energi.”

Source: RevenueBase Database · checked Sep 22, 2026
3Indirect evidenceHjørring, DenmarkHQ checked Sep 22, 202651-20019 contacts →

Indirect evidence

“Hjørring Vandselskab A/S blev etableret som et aktieselskab i 2007.”

Source: RevenueBase Database · checked Sep 22, 2026
4Indirect evidenceRoskilde, DenmarkHQ checked Sep 22, 202611-5018 contacts →

Indirect evidence

“Hos WASYS A/S har vi specialiseret os i at styre, overvåge og flytte vand.”

Source: RevenueBase Database · checked Sep 22, 2026
5Indirect evidenceGentofte, DenmarkHQ checked Sep 22, 202651-20016 contacts →

Indirect evidence

“Nordvand leverer drikkevand og håndterer spildevand for i alt forbrugere i Gentofte og Gladsaxe Kommuner.”

Source: RevenueBase Database · checked Sep 22, 2026
6Strong evidenceCopenhagen, DenmarkHQ checked Sep 22, 20261-1010 contacts →

Strong evidence

“Nordic International Water ApS is new established engineering, management, and development consultancy with ambition of a global reach to deliver innovative solutions for our…”

Source: RevenueBase Database · checked Sep 22, 2026
7Indirect evidenceStilling, DenmarkHQ checked Sep 22, 20261-108 contacts →

Indirect evidence

“DA/EN Carsten Søndergaard Consult ApS er et konsulentfirma med stærke ingeniør kompetencer indenfor afløbsteknik Carsten Søndergaard og Finn Hjerrild Johansen arbejder begge med…”

Source: RevenueBase Database · checked Sep 22, 2026
8Indirect evidenceStenløse, DenmarkHQ checked Sep 22, 20261-108 contacts →

Indirect evidence

“Rådgivning indenfor vand, kloak og klimatilpasning”

Source: RevenueBase Database · checked Sep 22, 2026
9Indirect evidenceNivå, DenmarkHQ checked Sep 22, 20261-102 contacts →

Indirect evidence

“Silberg Rådgivende Ingeniører er specialister inden for totalrådgivning og projektledelse ifm.”

Source: RevenueBase Database · checked Sep 22, 2026
10Partial evidenceBrabrand, DenmarkHQ checked Sep 22, 20261-102 contacts →

Partial evidence

“IN-Water ApS is an independent consultancy organization based in Denmark.”

Source: RevenueBase Database · checked Sep 22, 2026
11Indirect evidenceSønderborg, DenmarkHQ checked Sep 22, 20261-102 contacts →

Indirect evidence

“Bactocon has more than 40 years experince within the civil engineering industry.”

Source: RevenueBase Database · checked Sep 22, 2026
12Indirect evidenceKøbenhavn, DenmarkHQ checked Sep 22, 20261-102 contacts →

Indirect evidence

“Vanman består af to profiler, der siden 2013 har arbejdet sammen om planlægning og implementering af bæredygtige løsninger til håndtering af regn- og spildevand.”

Source: RevenueBase Database · checked Sep 22, 2026
13Partial evidenceKorsør, DenmarkHQ checked Sep 22, 20261-101 contacts →

Partial evidence

“HydroInform specializes in water information technologies and is undertaking consultancy work, participating in research projects and developing software products within this…”

Source: RevenueBase Database · checked Sep 22, 2026

Showing 13 of 30 water resource management firms based in Denmark

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Water resource management firms based in Denmark at a glance

As of Sep 22, 2026
7.2%Verified-email coverage
65.2Average contacts per company
1-10Median size (employees)
6.7%Largest-city concentration · Copenhagen
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
21
11-50
4
51-200
2
201-500
2
1,001-5,000
1

Email recency for this list is measured worldwide rather than for Denmark, so it is reported there. Company counts and contact totals on this page are exact for Denmark, over 30 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 water resource management firms, 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 Denmark whose own description of what they do matches “water resource management firms”. 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 water resource management firms), 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 water resource management firms, and records with no verified work email. Companies headquartered outside Denmark 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, 141 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 22, 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 water resource management firms, 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 water resource management firms are there based in Denmark?

RevenueBase identified 30 water resource management firms headquartered in Denmark 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?

DHI, headquartered in Horsholm, tops this list with the largest team on record.

Which city has the most water resource management firms?

Copenhagen leads with 2 headquartered companies, followed by Silkeborg (2) and Aalborg (1).

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 141 verified decision-maker contacts tracked across these 30 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 22, 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.