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, how directly it supports the match, 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 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 HQ checked on every row Match evidence 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. Evidence rates how directly each company's own description names hydrology consulting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	HPC AGIndirect evidence	Harburg Schwaben, GermanyHQ checked Sep 3, 2026	501-1,000	257
	“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: company website · checked Sep 3, 2026
2	Lindschulte Baden-BadenIndirect evidence	Hügelsheim, GermanyHQ checked Sep 3, 2026	51-200	49
	“WALD + CORBE hat sich zu einem namhaften Ingenieurbüro mit mehreren Standorten in den Bereichen Wasserwirtschaft, Wasserbau, Infrastruktur und Ökologie + Umwelt entwickelt.” Source: company website · checked Sep 3, 2026
3	Consulaqua Hamburg Beratungsgesellschaft MBHIndirect evidence	Hamburg, GermanyHQ checked Sep 3, 2026	51-200	33
	“Wasserkompetenz aus einer Hand: CONSULAQUA bietet Ingenieur- und Dienstleistungen rund um 360° Wasser!” Source: company website · checked Sep 3, 2026
4	Dr. Pecher GmbhIndirect evidence	Hochdahl, GermanyHQ checked Sep 3, 2026	51-200	30
	“Die Dr.” Source: company website · checked Sep 3, 2026
5	Hydrotec Water And Environment Consulting Engineers GmbhPartial evidence	Aachen, GermanyHQ checked Sep 3, 2026	51-200	27
	“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: company website · checked Sep 3, 2026
6	AHU Gmbh Wasser Boden GeomatikIndirect evidence	Aachen, GermanyHQ checked Sep 3, 2026	11-50	20
	“Die ahu GmbH in Aachen ist ein international tätiges Beratungs- und Planungsunternehmen für Wasser und Boden.” Source: company website · checked Sep 3, 2026
7	Ingenieurgesellschaft Heidt Peters MBHIndirect evidence	Celle, GermanyHQ checked Sep 3, 2026	51-200	19
	“Seit 60 Jahren sind wir als Beratende Ingenieure ein leistungsstarker Partner im Tiefbau.” Source: company website · checked Sep 3, 2026
8	Aqua Consult Ingenieur GmbhIndirect evidence	Hannover, GermanyHQ checked Sep 3, 2026	51-200	19
	“Auf den Punkt perfekt: unsere Lösungen Seit gut 50 Jahren arbeiten wir als Experten für Wasserwirtschaft und Umwelttechnik.” Source: company website · checked Sep 3, 2026
9	Hydro-IngenieureIndirect evidence	Düsseldorf, GermanyHQ checked Sep 3, 2026	51-200	18
	“Hydro-Ingenieure – Experten für Wasserwirtschaft & Siedlungswasserbau Seit über 40 Jahren planen und realisieren wir Projekte in der Wasserwirtschaft, Abwassertechnik und…” Source: company website · checked Sep 3, 2026
10	Arbeitsgruppe FÜR Regionale Struktur- UND Umweltforschung Gmbh ArsuIndirect evidence	Oldenburg, GermanyHQ checked Sep 3, 2026	11-50	18
	“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: company website · checked Sep 3, 2026
11	Aquadrat Ingenieure GmbhIndirect evidence	Griesheim, GermanyHQ checked Sep 3, 2026	51-200	17
	“aquadrat ingenieure ist ein Planungsbüro für anspruchsvolle Projekte der Siedlungswasserwirtschaft.” Source: company website · checked Sep 3, 2026
12	Smoltczyk & Partner GmbhIndirect evidence	Stuttgart, GermanyHQ checked Sep 3, 2026	11-50	16
	“Wir sind ein unabhängiges Beratungs-Unternehmen für Geotechnik, Hydrogeologie und Umwelttechnik und beraten seit über 40 Jahren erfolgreich in allen Fragen zu Baugrund…” Source: company website · checked Sep 3, 2026
13	Aquasoil Ingenieure & Geologen GmbhPartial evidence	Westheim, GermanyHQ checked Sep 3, 2026	11-50	15
	“AQUASOIL Ingenieure & Geologen GmbH excels in groundwater and surface water modelling, geotechnics, contaminated sites, water mangement, hydrogeology, hydrology, soil and…” Source: company website · checked Sep 3, 2026
14	Joswig Ingenieure GmbhIndirect evidence	Karlsruhe, GermanyHQ checked Sep 3, 2026	11-50	14
	“Wir beraten bei Umwelt- und Wasserprojekten.” Source: company website · checked Sep 3, 2026
15	GIP Grundwasser-Ingenieurbau-Planung Gmbh Dresden IM Grundwasser-Zentrum DresdenIndirect evidence	Dresden, GermanyHQ checked Sep 3, 2026	11-50	14
	“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: company website · checked Sep 3, 2026
16	Geries IngenieureIndirect evidence	GermanyHQ checked Sep 3, 2026	11-50	14
	“Geries Ingenieure Büro für Standorterkundung GmbH is a mechanical or industrial engineering company based out of Gleichen-Reinhausen, Germany.” Source: company website · checked Sep 3, 2026
17	SKI Gmbh Co.KgIndirect evidence	München, GermanyHQ checked Sep 3, 2026	11-50	13
	“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: company website · checked Sep 3, 2026
18	Ingenieurbüro BWS GmbhIndirect evidence	Hamburg, GermanyHQ checked Sep 3, 2026	11-50	13
	“Die BWS GmbH ist eine Ingenieurgesellschaft mit Hauptsitz in Hamburg.” Source: company website · checked Sep 3, 2026
19	Unger Ingenieure Ingenieurgesellschaft MBHIndirect evidence	Darmstadt, GermanyHQ checked Sep 3, 2026	1-10	12
	Source: company website · checked Sep 3, 2026
20	Sydro Consult GmbhPartial evidence	Darmstadt, GermanyHQ checked Sep 3, 2026	1-10	9
	“SYDRO Consult is an independent consulting company with in-depth knowledge and long-lasting experience in the field of Water Resources Management.” Source: company website · checked Sep 3, 2026
21	IPP Hydro Consult GmbhIndirect evidence	Cottbus, GermanyHQ checked Sep 3, 2026	51-200	9
	Source: company website · checked Sep 3, 2026
22	Mocon Ingenieure GmbhIndirect evidence	Dresden, GermanyHQ checked Sep 3, 2026	11-50	8
	“Unabhängiges Ingenieurbüroin für Planung und Bauüberwachung in den Bereichen Siedlungswasserwirtschaft, Wasserversorgung, Trinkwasser- und Wasseraufbereitung, Abwassertechnik…” Source: company website · checked Sep 3, 2026
23	Base Technologies GmbhIndirect evidence	Munchen, GermanyHQ checked Sep 3, 2026	11-50	8
	“Die BASE TECHNOLOGIES GmbH ist seit über 20 Jahren aktiv für Nachhaltigkeit und Transformation.” Source: company website · checked Sep 3, 2026
24	ITTIndirect evidence	Laboe, GermanyHQ checked Sep 3, 2026	11-50	8
	“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: company website · checked Sep 3, 2026
25	Ingenieurbüro Alwin Eppler Gmbh & Co. KGIndirect evidence	Dornstetten, GermanyHQ checked Sep 3, 2026	11-50	7
	“Ingenieurbüro Eppler ist schwerpunktmäßig in den Bereichen Trinkwasserversorgung, Abwasserbeseitigung und Wasserbau spezialisiert.” Source: company website · checked Sep 3, 2026

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

1-10Median size (employees)

HamburgLargest hub · 9 HQs

9Contacts with mobile numbers

Sep 3, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

501-1,000

Verified emails by last verification

0–30

31–60

61–90

233

90–180

153

180+

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 evidence 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 SmartSearch, 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.
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 an evidence 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

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 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.