Company lists · Data refreshed September 2026

Top 18 Water stress management consultants based in Germany

RevenueBase identified 45 water stress management consultants headquartered in Germany as of September 2026 and tracks 447 professional contacts across them, including 175 with verified work emails. Hamburg is the largest hub.

This list covers water stress management consultants headquartered in Germany, 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 29, 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 29, 2026 86% judged on-target in blind review
45Companies
447Contacts tracked
175Verified emails
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The 18 largest water stress management consultants based in Germany

Ranked by team size
Top 18 of 45 water stress management consultants based in Germany, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to water stress management consultants: 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 evidenceHaren, GermanyHQ checked Sep 29, 2026501-1,00088 contacts →

Partial evidence

“Water has been our passion for more than 60 years.”

Source: RevenueBase Database · checked Sep 29, 2026
2Indirect evidenceGildehaus, GermanyHQ checked Sep 29, 202651-20087 contacts →

Indirect evidence

“Wij zorgen voor droge voeten!”

Source: RevenueBase Database · checked Sep 29, 2026
3Partial evidenceFrankfurt/main, GermanyHQ checked Sep 29, 202611-5035 contacts →

Partial evidence

“MACS Energy & Water is an independent international consulting company, working in the field of Infrastructure Finance for Water and Sanitation as well as Energy Efficiency (EE)…”

Source: RevenueBase Database · checked Sep 29, 2026
4Indirect evidenceHamburg, GermanyHQ checked Sep 29, 202651-20034 contacts →

Indirect evidence

“Wasserkompetenz aus einer Hand: CONSULAQUA bietet Ingenieur- und Dienstleistungen rund um 360° Wasser!”

Source: RevenueBase Database · checked Sep 29, 2026
5Indirect evidenceHanover, GermanyHQ checked Sep 29, 202651-20020 contacts →

Indirect evidence

“Auf den Punkt perfekt: unsere Lösungen Seit gut 50 Jahren arbeiten wir als Experten für Wasserwirtschaft und Umwelttechnik.”

Source: RevenueBase Database · checked Sep 29, 2026
6Partial evidenceLeipzig, GermanyHQ checked Sep 29, 202611-5020 contacts →

Partial evidence

“Sachsen Wasser GmbH (SaWa) is a specialised consulting company in the field of water supply and sanitation with a particular focus on water utility advisory and operations and…”

Source: RevenueBase Database · checked Sep 29, 2026
7Indirect evidenceBrake, GermanyHQ checked Sep 29, 202611-5020 contacts →

Indirect evidence

“Pro Wasser!”

Source: RevenueBase Database · checked Sep 29, 2026
8Indirect evidenceDüsseldorf, GermanyHQ checked Sep 29, 202651-20018 contacts →

Indirect evidence

“Hydro-Ingenieure – Experten für Wasserwirtschaft & Siedlungswasserbau Seit über 40 Jahren planen und realisieren wir Projekte in der Wasserwirtschaft, Abwassertechnik und…”

Source: RevenueBase Database · checked Sep 29, 2026
9Indirect evidenceHamburg, GermanyHQ checked Sep 29, 202611-5010 contacts →

Indirect evidence

“Die aquabench steht Unternehmen und Werken bei Fragen nach Qualität, Wirtschaftlichkeit und Nachhaltigkeit in der Wasserwirtschaft zur Seite.”

Source: RevenueBase Database · checked Sep 29, 2026
10Partial evidenceBonn, GermanyHQ checked Sep 29, 202611-509 contacts →

Partial evidence

“At Water.”

Source: RevenueBase Database · checked Sep 29, 2026
11Indirect evidenceMunich, GermanyHQ checked Sep 29, 202611-508 contacts →

Indirect evidence

“Die BASE TECHNOLOGIES GmbH ist seit über 20 Jahren aktiv für Nachhaltigkeit und Transformation.”

Source: RevenueBase Database · checked Sep 29, 2026
12Strong evidenceDarmstadt, GermanyHQ checked Sep 29, 20261-108 contacts →

Strong evidence

“SYDRO Consult is an independent consulting company with in-depth knowledge and long-lasting experience in the field of Water Resources Management.”

Source: RevenueBase Database · checked Sep 29, 2026
13Indirect evidenceBerlin, GermanyHQ checked Sep 29, 20261-107 contacts →

Indirect evidence

“Die HYDOR Consult GmbH bietet seit zwanzig Jahren unabhängige Planungs- und Beratungsleis-tungen am Standort Am Borsigturm in Berlin-Tegel in folgenden Bereichen…”

Source: RevenueBase Database · checked Sep 29, 2026
14Indirect evidenceBerlin, GermanyHQ checked Sep 29, 202611-507 contacts →

Indirect evidence

“Seit über einem Jahrhundert steht die DAR GmbH Berlin für Qualität und Innovation in der Siedlungswasserwirtschaft.”

Source: RevenueBase Database · checked Sep 29, 2026
15Indirect evidenceMinden, GermanyHQ checked Sep 29, 20261-103 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 29, 2026
16Indirect evidenceMannheim, GermanyHQ checked Sep 29, 20261-103 contacts →

Indirect evidence

“Die GFA Deutschland ist Ihr kompetenter Ansprechpartner, wenn Sie als Hausverwaltung, privater Eigentümer, öffentlicher Träger, Fachhandwerker oder Unternehmer eine zuverlässige…”

Source: RevenueBase Database · checked Sep 29, 2026
17Indirect evidenceBad Kreuznach, GermanyHQ checked Sep 29, 20261-102 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 29, 2026
18Indirect evidenceLindau, GermanyHQ checked Sep 29, 20261-101 contacts →

Indirect evidence

“unabhängige Beratungs- und Planungsleistungen im Bereich der Wasserversorgung”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 18 of 45 water stress management consultants based in Germany

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Water stress management consultants based in Germany at a glance

As of Sep 29, 2026
39.1%Verified-email coverage
9.9Average contacts per company
1-10Median size (employees)
8.9%Largest-city concentration · Hamburg
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
25
11-50
12
51-200
6
501-1,000
1

Email recency for this list is measured worldwide rather than for Germany, so it is reported there. Company counts and contact totals on this page are exact for Germany, over 45 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 stress management consultants, 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 Germany whose own description of what they do matches “water stress management consultants”. 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 stress management consultants), 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 stress management consultants, and records with no verified work email. Companies headquartered outside Germany 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, 175 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 29, 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 stress management consultants, 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 stress management consultants are there based in Germany?

RevenueBase identified 45 water stress management consultants headquartered in Germany 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?

Hölscher, headquartered in Haren, tops this list with the largest team on record.

Which city has the most water stress management consultants?

Hamburg leads with 4 headquartered companies, followed by Berlin (3) and Leipzig (3).

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 175 verified decision-maker contacts tracked across these 45 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 29, 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.