Company lists · Data refreshed September 2026

Top 25 Hydrology consulting firms based in Germany

Name: Hydrology consulting firms based in Germany
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 3, 2026 153 companies tracked

RevenueBase identified 153 hydrology consulting firms headquartered in Germany as of September 2026 and tracks 1,113 professional contacts across them, including 423 with verified work emails and 9 with mobile numbers. Hamburg is the largest hub.

This list covers hydrology consulting firms 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 3, 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 3, 2026 86% judged on-target in blind review

153Companies

1,113Contacts tracked

423Verified emails

9Mobile numbers

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The 25 largest hydrology consulting firms based in Germany

Ranked by team size

Top 25 of 153 hydrology consulting firms based in Germany, ranked by team size, largest first. Data refreshed Sep 3, 2026. RevenueBase Smart Search rates how each company's information relates to hydrology consulting 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	HPC AG	Indirect evidence	Harburg Schwaben, GermanyHQ checked Sep 3, 2026	501-1,000	257 contacts →
	Indirect evidence “HPC has been working for people and their environment since 1948: we are specialist planners and experts in soil and groundwater, mineral and drinking water, building ground and…” Source: RevenueBase Database · checked Sep 3, 2026
2	Lindschulte Baden-Baden	Indirect evidence	Hügelsheim, GermanyHQ checked Sep 3, 2026	51-200	49 contacts →
	Indirect evidence “WALD + CORBE hat sich zu einem namhaften Ingenieurbüro mit mehreren Standorten in den Bereichen Wasserwirtschaft, Wasserbau, Infrastruktur und Ökologie + Umwelt entwickelt.” Source: RevenueBase Database · checked Sep 3, 2026
3	Consulaqua Hamburg Beratungsgesellschaft MBH	Indirect evidence	Hamburg, GermanyHQ checked Sep 3, 2026	51-200	33 contacts →
	Indirect evidence “Wasserkompetenz aus einer Hand: CONSULAQUA bietet Ingenieur- und Dienstleistungen rund um 360° Wasser!” Source: RevenueBase Database · checked Sep 3, 2026
4	Dr. Pecher Gmbh	Indirect evidence	Hochdahl, GermanyHQ checked Sep 3, 2026	51-200	30 contacts →
	Indirect evidence “Die Dr.” Source: RevenueBase Database · checked Sep 3, 2026
5	Hydrotec Water And Environment Consulting Engineers Gmbh	Partial evidence	Aachen, GermanyHQ checked Sep 3, 2026	51-200	27 contacts →
	Partial evidence “Hydrotec is a consulting firm focusing on the analysis of quantitative and qualitative aspects of water resources systems and environmental issues as well as data ascertainment…” Source: RevenueBase Database · checked Sep 3, 2026
6	AHU Gmbh Wasser Boden Geomatik	Indirect evidence	Aachen, GermanyHQ checked Sep 3, 2026	11-50	20 contacts →
	Indirect evidence “Die ahu GmbH in Aachen ist ein international tätiges Beratungs- und Planungsunternehmen für Wasser und Boden.” Source: RevenueBase Database · checked Sep 3, 2026
7	Ingenieurgesellschaft Heidt Peters MBH	Indirect evidence	Celle, GermanyHQ checked Sep 3, 2026	51-200	19 contacts →
	Indirect evidence “Seit 60 Jahren sind wir als Beratende Ingenieure ein leistungsstarker Partner im Tiefbau.” Source: RevenueBase Database · checked Sep 3, 2026
8	Aqua Consult Ingenieur Gmbh	Indirect evidence	Hannover, GermanyHQ checked Sep 3, 2026	51-200	19 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 3, 2026
9	Hydro-Ingenieure	Indirect evidence	Düsseldorf, GermanyHQ checked Sep 3, 2026	51-200	18 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 3, 2026
10	Arbeitsgruppe FÜR Regionale Struktur- UND Umweltforschung Gmbh Arsu	Indirect evidence	Oldenburg, GermanyHQ checked Sep 3, 2026	11-50	18 contacts →
	Indirect evidence “Die ARSU GmbH, mit Sitz in Oldenburg, bearbeitet seit mehr als 40 Jahren Planungs, Forschungs- und Umsetzungsprojekte mit einer großen inhaltlichen Bandbreite in den Bereichen…” Source: RevenueBase Database · checked Sep 3, 2026
11	Aquadrat Ingenieure Gmbh	Indirect evidence	Griesheim, GermanyHQ checked Sep 3, 2026	51-200	17 contacts →
	Indirect evidence “aquadrat ingenieure ist ein Planungsbüro für anspruchsvolle Projekte der Siedlungswasserwirtschaft.” Source: RevenueBase Database · checked Sep 3, 2026
12	Smoltczyk & Partner Gmbh	Indirect evidence	Stuttgart, GermanyHQ checked Sep 3, 2026	11-50	16 contacts →
	Indirect evidence “Wir sind ein unabhängiges Beratungs-Unternehmen für Geotechnik, Hydrogeologie und Umwelttechnik und beraten seit über 40 Jahren erfolgreich in allen Fragen zu Baugrund…” Source: RevenueBase Database · checked Sep 3, 2026
13	Aquasoil Ingenieure & Geologen Gmbh	Partial evidence	Westheim, GermanyHQ checked Sep 3, 2026	11-50	15 contacts →
	Partial evidence “AQUASOIL Ingenieure & Geologen GmbH excels in groundwater and surface water modelling, geotechnics, contaminated sites, water mangement, hydrogeology, hydrology, soil and…” Source: RevenueBase Database · checked Sep 3, 2026
14	Joswig Ingenieure Gmbh	Indirect evidence	Karlsruhe, GermanyHQ checked Sep 3, 2026	11-50	14 contacts →
	Indirect evidence “Wir beraten bei Umwelt- und Wasserprojekten.” Source: RevenueBase Database · checked Sep 3, 2026
15	GIP Grundwasser-Ingenieurbau-Planung Gmbh Dresden IM Grundwasser-Zentrum Dresden	Indirect evidence	Dresden, GermanyHQ checked Sep 3, 2026	11-50	14 contacts →
	Indirect evidence “GIP Grundwasser-Ingenieurbau-Planung GmbH Dresden is an engineering company based in the Groundwater Centre Dresden (click here to go to GWZ Dresden The company provides services…” Source: RevenueBase Database · checked Sep 3, 2026
16	Geries Ingenieure	Indirect evidence	GermanyHQ checked Sep 3, 2026	11-50	14 contacts →
	Indirect evidence “Geries Ingenieure Büro für Standorterkundung GmbH is a mechanical or industrial engineering company based out of Gleichen-Reinhausen, Germany.” Source: RevenueBase Database · checked Sep 3, 2026
17	SKI Gmbh Co.Kg	Indirect evidence	München, GermanyHQ checked Sep 3, 2026	11-50	13 contacts →
	Indirect evidence “Seit rund 20 Jahren ist SKI mit seinen Standorten in München und seit 2017 auch in Landshut ein zuverlässiger Partner für Kommunen, Auftraggeber aus der Wasserwirtschaft und…” Source: RevenueBase Database · checked Sep 3, 2026
18	Ingenieurbüro BWS Gmbh	Indirect evidence	Hamburg, GermanyHQ checked Sep 3, 2026	11-50	13 contacts →
	Indirect evidence “Die BWS GmbH ist eine Ingenieurgesellschaft mit Hauptsitz in Hamburg.” Source: RevenueBase Database · checked Sep 3, 2026
19	Unger Ingenieure Ingenieurgesellschaft MBH	Indirect evidence	Darmstadt, GermanyHQ checked Sep 3, 2026	1-10	12 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 3, 2026
20	Sydro Consult Gmbh	Partial evidence	Darmstadt, GermanyHQ checked Sep 3, 2026	1-10	9 contacts →
	Partial 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 3, 2026
21	IPP Hydro Consult Gmbh	Indirect evidence	Cottbus, GermanyHQ checked Sep 3, 2026	51-200	9 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 3, 2026
22	Mocon Ingenieure Gmbh	Indirect evidence	Dresden, GermanyHQ checked Sep 3, 2026	11-50	8 contacts →
	Indirect evidence “Unabhängiges Ingenieurbüroin für Planung und Bauüberwachung in den Bereichen Siedlungswasserwirtschaft, Wasserversorgung, Trinkwasser- und Wasseraufbereitung, Abwassertechnik…” Source: RevenueBase Database · checked Sep 3, 2026
23	Base Technologies Gmbh	Indirect evidence	Munchen, GermanyHQ checked Sep 3, 2026	11-50	8 contacts →
	Indirect evidence “Die BASE TECHNOLOGIES GmbH ist seit über 20 Jahren aktiv für Nachhaltigkeit und Transformation.” Source: RevenueBase Database · checked Sep 3, 2026
24	ITT	Indirect evidence	Laboe, GermanyHQ checked Sep 3, 2026	11-50	8 contacts →
	Indirect evidence “ITT - Port Consult GmbH is an engineering & planning company focussing on hydraulic engineering, harbour planning and coastal engineering based at 24235 Laboe, Schleswig-Holstein…” Source: RevenueBase Database · checked Sep 3, 2026
25	Ingenieurbüro Alwin Eppler Gmbh & Co. KG	Indirect evidence	Dornstetten, GermanyHQ checked Sep 3, 2026	11-50	7 contacts →
	Indirect evidence “Ingenieurbüro Eppler ist schwerpunktmäßig in den Bereichen Trinkwasserversorgung, Abwasserbeseitigung und Wasserbau spezialisiert.” Source: RevenueBase Database · checked Sep 3, 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: hydrology consulting firms. 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 hydrology consulting firms.
Partial evidence: Its own public description names part of hydrology consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name hydrology consulting firms. 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 153 hydrology consulting firms based in Germany

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Hydrology consulting firms based in Germany at a glance

As of Sep 3, 2026

38.0%Verified-email coverage

0.8%Mobile-number coverage

7.3Average contacts per company

1-10Median size (employees)

5.9%Largest-city concentration · Hamburg

Sep 3, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

501-1,000

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

00–30

3631–60

23361–90

15390–180

1180+

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 hydrology consulting 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 Germany whose own description of what they do matches “hydrology consulting 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 hydrology consulting 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 hydrology consulting firms, 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, 423 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 3, 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 hydrology consulting 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 hydrology consulting firms are there based in Germany?

RevenueBase identified 153 hydrology consulting firms 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?

HPC AG, headquartered in Harburg Schwaben, tops this list with the largest team on record.

Which city has the most hydrology consulting firms?

Hamburg leads with 9 headquartered companies, followed by Dresden (8) and Munchen (6).

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 423 verified decision-maker contacts tracked across these 153 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 3, 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.