Company lists · Data refreshed September 2026

Top 25 Water utility infrastructure contractors based in Germany

Name: Water utility infrastructure contractors based in Germany
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 229 companies tracked

RevenueBase identified 229 water utility infrastructure contractors headquartered in Germany as of September 2026 and tracks 2,913 professional contacts across them, including 936 with verified work emails. Dresden is the largest hub.

This list covers water utility infrastructure contractors 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 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

229Companies

2,913Contacts tracked

936Verified emails

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The 25 largest water utility infrastructure contractors based in Germany

Ranked by team size

Top 25 of 229 water utility infrastructure contractors based in Germany, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to water utility infrastructure contractors: 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	Hamburg Wasser	Indirect evidence	Hamburg, GermanyHQ checked Sep 19, 2026	1,001-5,000	457 contacts →
	Indirect evidence “Wasser ist Leben – und wir sorgen täglich dafür, dass zuverlässig reines Trinkwasser durch die Wasserhähne fließt und Abwasser nachhaltig entsorgt wird.” Source: RevenueBase Database · checked Sep 19, 2026
2	WTE Wassertechnik Gmbh	Indirect evidence	E, GermanyHQ checked Sep 19, 2026	501-1,000	242 contacts →
	Indirect evidence “Optimierung.” Source: RevenueBase Database · checked Sep 19, 2026
3	Gelsenwasser AG	Indirect evidence	Gelsenkirchen, GermanyHQ checked Sep 19, 2026	1,001-5,000	227 contacts →
	Indirect evidence “Wir sind Ihr Partner für Kommunen, Industrie und Gewerbe, wenn es um die sichere Versorgung und effiziente Bewirtschaftung von Infrastruktur geht.” Source: RevenueBase Database · checked Sep 19, 2026
4	Ludwig Pfeiffer Hoch- UND Tiefbau Gmbh & Co. KG	Indirect evidence	Leipzig, GermanyHQ checked Sep 19, 2026	501-1,000	200 contacts →
	Indirect evidence “Im Jahr 1991 mit dem Fokus auf Wasserversorgung und Abwasserbeseitigung gegründet, operiert unsere Unternehmensgruppe heute in Deutschland und Österreich.” Source: RevenueBase Database · checked Sep 19, 2026
5	Oldenburgisch-Ostfriesischer Wasserverband Oowv	Indirect evidence	Brake, GermanyHQ checked Sep 19, 2026	501-1,000	154 contacts →
	Indirect evidence “An der Quelle zum Erfolg: Der OOWV als Arbeitgeber.” Source: RevenueBase Database · checked Sep 19, 2026
6	Wavin Gmbh	Partial evidence	Twist, GermanyHQ checked Sep 19, 2026	501-1,000	144 contacts →
	Partial evidence “Wavin provides above and below ground solutions for hot & cold tap water, surface heating and cooling, soil and waste, rainwater management and last mile telecom.” Source: RevenueBase Database · checked Sep 19, 2026
7	PWT Wasser- UND Abwassertechnik Gmbh	Indirect evidence	Zwingenberg, GermanyHQ checked Sep 19, 2026	51-200	113 contacts →
	Indirect evidence “We from PWT Wasser- und Abwassertechnik GmbH with headquarter in Zwingenberg Germany (Close to Frankfurt am Main, Mannheim and Darmstadt) are speacialized as turnkey supplier…” Source: RevenueBase Database · checked Sep 19, 2026
8	RBS Wave Gmbh	Indirect evidence	Stuttgart, GermanyHQ checked Sep 19, 2026	51-200	88 contacts →
	Indirect evidence “Seit Jahrzehnten steht RBS wave für zuverlässiges und innovatives Know-how im Bereich Ingenieurdienstleistungen.” Source: RevenueBase Database · checked Sep 19, 2026
9	Gelsenwasser Energienetze	Indirect evidence	Gelsenkirchen, GermanyHQ checked Sep 19, 2026	201-500	87 contacts →
	Indirect evidence “Wir sind die Spezialisten für den Betrieb leitungsgebundener Infrastruktur: Strom, Gas, Wasser und Wärme.” Source: RevenueBase Database · checked Sep 19, 2026
10	Dahlem Beratende Ingenieure Gmbh & Co. Wasserwirtschaft KG	Indirect evidence	Essen, GermanyHQ checked Sep 19, 2026	51-200	81 contacts →
	Indirect evidence “DAHLEM is an engineering company headquartered in Essen, Germany, with offices in Darmstadt, Würzburg, Berlin, Stuttgart, Montenegro and Albania.” Source: RevenueBase Database · checked Sep 19, 2026
11	Consulaqua Hamburg Beratungsgesellschaft MBH	Indirect evidence	Hamburg, GermanyHQ checked Sep 19, 2026	51-200	34 contacts →
	Indirect evidence “Wasserkompetenz aus einer Hand: CONSULAQUA bietet Ingenieur- und Dienstleistungen rund um 360° Wasser!” Source: RevenueBase Database · checked Sep 19, 2026
12	WKS Technik Gmbh	Indirect evidence	Dresden, GermanyHQ checked Sep 19, 2026	51-200	32 contacts →
	Indirect evidence “W\|ASSER ist seit 30 Jahren unser Element: Wir entwickeln und bieten produkt- und systemübergreifende Lösungen auf dem Gebiet des Neubaus, der Rekonstruktion sowie der Optimierung…” Source: RevenueBase Database · checked Sep 19, 2026
13	Dr. Pecher Gmbh	Indirect evidence	Hochdahl, GermanyHQ checked Sep 19, 2026	51-200	30 contacts →
	Indirect evidence “Die Dr.” Source: RevenueBase Database · checked Sep 19, 2026
14	Ebero FAB	Indirect evidence	Norderstedt, GermanyHQ checked Sep 19, 2026	51-200	29 contacts →
	Indirect evidence “Wissen.” Source: RevenueBase Database · checked Sep 19, 2026
15	Umwelttechnik & Wasserbau Gmbh	Indirect evidence	Blankenburg (harz), GermanyHQ checked Sep 19, 2026	501-1,000	23 contacts →
	Indirect evidence “Als leistungsfähiges und flexibles Bauunternehmen mit einem hohen Grad an Fachkompetenz, legen wir höchsten Wert auf Qualität, Termintreue, Zuverlässigkeit und Umweltschutz.” Source: RevenueBase Database · checked Sep 19, 2026
16	KEW Kommunale Energie- UND Wasserversorgung AG	Indirect evidence	Neunkirchen/saar, GermanyHQ checked Sep 19, 2026	201-500	22 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
17	ATD Ingenieurgesellschaft FÜR Abwasserwirtschaft UND Technische Dienstleistungen MBH	Indirect evidence	Aachen, GermanyHQ checked Sep 19, 2026	11-50	21 contacts →
	Indirect evidence “atd plans and builds plants in all areas of wastewater management” Source: RevenueBase Database · checked Sep 19, 2026
18	Iska Infrastruktur	Indirect evidence	Holzkirchen, GermanyHQ checked Sep 19, 2026	201-500	21 contacts →
	Indirect evidence “ISKA Infrastruktur GmbH is a civil engineering company active in the fields of sewer construction, horizontal drilling, surface construction, underground cable construction with…” Source: RevenueBase Database · checked Sep 19, 2026
19	Hydro-Ingenieure	Indirect evidence	Düsseldorf, GermanyHQ checked Sep 19, 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 19, 2026
20	Ingenieurbüro H. Berg & Partner Gmbh	Indirect evidence	Aachen, GermanyHQ checked Sep 19, 2026	51-200	15 contacts →
	Indirect evidence “As an experienced and prospering engineering office located in Aachen (Germany) and partner offices in Belgium and Luxembourg, we have comprehensive service and consulting…” Source: RevenueBase Database · checked Sep 19, 2026
21	Ingenieurbüro Miller	Indirect evidence	Nürnberg, GermanyHQ checked Sep 19, 2026	51-200	14 contacts →
	Indirect evidence “Ingenieurskunst seit 120 Jahren Das Ingenieurbüro Miller ist ein im Bereich Umweltschutz tätiges Ingenieurbüro.” Source: RevenueBase Database · checked Sep 19, 2026
22	Stadtwerke Böhmetal Gmbh	Indirect evidence	Walsrode, GermanyHQ checked Sep 19, 2026	51-200	13 contacts →
	Indirect evidence “Die Stadtwerke Böhmetal GmbH, ein kommunales Wirtschaftsunternehmen zwischen den Landeshauptstädten Hannover, Bremen und Hamburg, steht für eine sichere und preiswerte Versorgung…” Source: RevenueBase Database · checked Sep 19, 2026
23	Dankers Bohrtechnik Gmbh	Indirect evidence	Fredenbeck, GermanyHQ checked Sep 19, 2026	51-200	12 contacts →
	Indirect evidence “DANKERS Bohrtechnik GmbH ist Ihr kompetenter Partner für Horizontalbohrtechnik und Kabelleitungstiefbau.” Source: RevenueBase Database · checked Sep 19, 2026
24	Dahmen Rohrleitungsbau Gmbh & Co. KG	Indirect evidence	Quakenbrück, GermanyHQ checked Sep 19, 2026	11-50	11 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
25	Wasserverband Lausitz Betriebsführungs Gmbh	Indirect evidence	Senftenberg, GermanyHQ checked Sep 19, 2026	201-500	10 contacts →
	Indirect evidence “Wir, die Wasserverband Lausitz Betriebsführungs GmbH (WAL-Betrieb) sind gefragter Partner für nachhaltige Wasserwirtschaft.” 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: water utility infrastructure contractors. 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 water utility infrastructure contractors.
Partial evidence: Its own public description names part of water utility infrastructure contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name water utility infrastructure contractors. 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 229 water utility infrastructure contractors based in Germany

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Water utility infrastructure contractors based in Germany at a glance

As of Sep 19, 2026

32.1%Verified-email coverage

12.7Average contacts per company

11-50Median size (employees)

3.5%Largest-city concentration · Dresden

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 229 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 utility infrastructure contractors, 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 utility infrastructure contractors”. 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 utility infrastructure contractors), 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 utility infrastructure contractors, 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, 936 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 water utility infrastructure contractors, 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 utility infrastructure contractors are there based in Germany?

RevenueBase identified 229 water utility infrastructure contractors 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?

Hamburg Wasser, headquartered in Hamburg, tops this list with the largest team on record.

Which city has the most water utility infrastructure contractors?

Dresden leads with 8 headquartered companies, followed by Hamburg (6) and Aachen (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 936 verified decision-maker contacts tracked across these 229 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.