Company lists · Data refreshed September 2026

Top 25 Groundwater treatment plant developers based in Germany

Name: Groundwater treatment plant developers based in Germany
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 105 companies tracked

RevenueBase identified 105 groundwater treatment plant developers headquartered in Germany as of September 2026 and tracks 1,140 professional contacts across them, including 344 with verified work emails. Berlin is the largest hub.

This list covers groundwater treatment plant developers 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 20, 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 20, 2026 86% judged on-target in blind review

105Companies

1,140Contacts tracked

344Verified emails

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The 25 largest groundwater treatment plant developers based in Germany

Ranked by team size

Top 25 of 105 groundwater treatment plant developers based in Germany, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to groundwater treatment plant developers: 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	Ludwig Pfeiffer Hoch- UND Tiefbau Gmbh & Co. KG	Indirect evidence	Leipzig, GermanyHQ checked Sep 20, 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 20, 2026
2	PWT Wasser- UND Abwassertechnik Gmbh	Indirect evidence	Zwingenberg, GermanyHQ checked Sep 20, 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 20, 2026
3	Hölscher	Indirect evidence	Haren, GermanyHQ checked Sep 20, 2026	501-1,000	88 contacts →
	Indirect evidence “Water has been our passion for more than 60 years.” Source: RevenueBase Database · checked Sep 20, 2026
4	Koop Bronbemaling B.V. Koop Wasserbau Gmbh	Indirect evidence	Gildehaus, GermanyHQ checked Sep 20, 2026	51-200	87 contacts →
	Indirect evidence “Wij zorgen voor droge voeten!” Source: RevenueBase Database · checked Sep 20, 2026
5	Bauer Resources Gmbh	Indirect evidence	Schrobenhausen, GermanyHQ checked Sep 20, 2026	1,001-5,000	59 contacts →
	Indirect evidence “Die BAUER Resources GmbH ist der Geschäftsbereich für Umweltdienstleistungen der BAUER Gruppe mit Sitz in Schrobenhausen.” Source: RevenueBase Database · checked Sep 20, 2026
6	Envirodts Gmbh	Indirect evidence	Friedberg (hessen), GermanyHQ checked Sep 20, 2026	51-200	29 contacts →
	Indirect evidence “Anlagenbau für Wasser- und Abwassertechnik Labore / Institute / Krankenhäuser und Industrie EnviroDTS ist spezialisiert auf die komplette Abwasseraufbereitung und…” Source: RevenueBase Database · checked Sep 20, 2026
7	ATB Water Gmbh	Strong evidence	Porta Westfalica, GermanyHQ checked Sep 20, 2026	51-200	27 contacts →
	Strong evidence “ATB WATER - Small sewage treatment plants, wastewater treatment technology and sewage technology for every challenge in industry.” Source: RevenueBase Database · checked Sep 20, 2026
8	ATD Ingenieurgesellschaft FÜR Abwasserwirtschaft UND Technische Dienstleistungen MBH	Partial evidence	Aachen, GermanyHQ checked Sep 20, 2026	11-50	21 contacts →
	Partial evidence “atd plans and builds plants in all areas of wastewater management” Source: RevenueBase Database · checked Sep 20, 2026
9	Almawatech	Indirect evidence	Babenhausen, GermanyHQ checked Sep 20, 2026	51-200	20 contacts →
	Indirect evidence “ALMAWATECH – Anlagenbau & Prozesslösungen für industrielle Wassertechnik Die ALMAWATECH GmbH ist ein familiengeführtes Unternehmen mit langer Tradition in der industriellen…” Source: RevenueBase Database · checked Sep 20, 2026
10	BWS Anlagenbau & Service Gmbh	Strong evidence	Oberndorf A.n., GermanyHQ checked Sep 20, 2026	11-50	14 contacts →
	Strong evidence “As a plant constructor we offer you a comprehensive range of services in the field of water and waste water treatment.” Source: RevenueBase Database · checked Sep 20, 2026
11	Ingenieurbüro Miller	Indirect evidence	Nürnberg, GermanyHQ checked Sep 20, 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 20, 2026
12	KLARO	Strong evidence	Bayreuth, GermanyHQ checked Sep 20, 2026	11-50	13 contacts →
	Strong evidence “KLARO is your specialist for small wastewater treatment plants up to 50 PE and bigger wastewater treatment symstems up to PE - Made in Germany Wherever a connection to the sewer…” Source: RevenueBase Database · checked Sep 20, 2026
13	Aqua & Waste International Gmbh	Indirect evidence	Hanover, GermanyHQ checked Sep 20, 2026	11-50	12 contacts →
	Indirect evidence “Based in Hanover, Germany, aqua & waste International GmbH is an independent engineering and consulting company specializing in the field of environmental protection.” Source: RevenueBase Database · checked Sep 20, 2026
14	IEG Technologie Gmbh	Partial evidence	Mühlhausen, GermanyHQ checked Sep 20, 2026	11-50	11 contacts →
	Partial evidence “IEG specializes in in-situ soil and groundwater remediation and is a leading supplier of equipment and processes for hydraulic, microbiological and chemical remediation.” Source: RevenueBase Database · checked Sep 20, 2026
15	Rudolf Messner Umwelttechnik AG	Strong evidence	Adelsdorf, GermanyHQ checked Sep 20, 2026	11-50	9 contacts →
	Strong evidence “Efficiency and quality are among the most important features of modern aeration systems for biological wastewater treatment plants to operate them in an economically, ecologically…” Source: RevenueBase Database · checked Sep 20, 2026
16	CNP Cycles Gmbh	Partial evidence	Alzenau In Unterfranken, GermanyHQ checked Sep 20, 2026	11-50	8 contacts →
	Partial evidence “In the field of urban water treatment, we are one of the world leaders in technological processes for the recovery of carbon (C), nitrogen (N) and phosphorus (P).” Source: RevenueBase Database · checked Sep 20, 2026
17	Leyco Wassertechnik Gmbh	Strong evidence	Föritztal, GermanyHQ checked Sep 20, 2026	11-50	8 contacts →
	Strong evidence “The service portfolio ranges from the design, construction and maintenance of complete water treatment plants for industry and commerce to the sale of individual components of…” Source: RevenueBase Database · checked Sep 20, 2026
18	AWS By Gelsenwasser	Indirect evidence	Gelsenkirchen, GermanyHQ checked Sep 20, 2026	51-200	7 contacts →
	Indirect evidence “AWS GmbH – Ihr Partner für Wasser- und Abwassermanagement Als Spezialist für industrielles und kommunales Wasser- und Abwassermanagement übernehmen wir die langfristige…” Source: RevenueBase Database · checked Sep 20, 2026
19	Aqua Plus Wasser- UND Recyclingsysteme Gmbh	Indirect evidence	Böbingen An Der Rems, GermanyHQ checked Sep 20, 2026	11-50	7 contacts →
	Indirect evidence “Die aqua plus Wasser- und Recyclingsysteme GmbH mit Sitz in Böbingen an der Rems (Deutschland) ist ein dynamisches, innovatives Unternehmen im Bereich industriellen Wasser- und…” Source: RevenueBase Database · checked Sep 20, 2026
20	Aquato Umwelttechnologien Gmbh	Indirect evidence	Herford, GermanyHQ checked Sep 20, 2026	1-10	7 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
21	Beton UND Rohrbau 2.0 Gmbh	Indirect evidence	Berlin, GermanyHQ checked Sep 20, 2026	51-200	7 contacts →
	Indirect evidence “Gemeinsam bauen wir Zukunft – beton & rohrbau 2.0 GmbH Willkommen bei der beton & rohrbau 2.0 GmbH.” Source: RevenueBase Database · checked Sep 20, 2026
22	Jiarong International Gmbh	Indirect evidence	Winterbach, GermanyHQ checked Sep 20, 2026	1-10	6 contacts →
	Indirect evidence “Spezialisten für nachhaltige Lösungen in der Abwasseraufbereitung.” Source: RevenueBase Database · checked Sep 20, 2026
23	WBG Wasserbaugesellschaft Anlagenbau MBH	Indirect evidence	Mainleus, GermanyHQ checked Sep 20, 2026	11-50	6 contacts →
	Indirect evidence “Die WBG ist ein Unternehmen mit Sitz in Mainleus, Deutschland.” Source: RevenueBase Database · checked Sep 20, 2026
24	J. U. H. VAN DER Linde, Bauunternehmen	Indirect evidence	Emden, GermanyHQ checked Sep 20, 2026	51-200	6 contacts →
	Indirect evidence “J.” Source: RevenueBase Database · checked Sep 20, 2026
25	UTP Umwelttechnik Pöhnl Gmbh	Partial evidence	Seybothenreuth, GermanyHQ checked Sep 20, 2026	11-50	6 contacts →
	Partial evidence “utp umwelttechnik specializes in developing and implementing innovative water and wastewater treatment systems for municipal and industrial applications.” Source: RevenueBase Database · checked Sep 20, 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: groundwater treatment plant developers. 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 groundwater treatment plant developers.
Partial evidence: Its own public description names part of groundwater treatment plant developers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name groundwater treatment plant developers. 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 105 groundwater treatment plant developers based in Germany

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Groundwater treatment plant developers based in Germany at a glance

As of Sep 20, 2026

30.2%Verified-email coverage

10.9Average contacts per company

11-50Median size (employees)

8.6%Largest-city concentration · Berlin

Sep 20, 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 105 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 groundwater treatment plant developers, 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 “groundwater treatment plant developers”. 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 groundwater treatment plant developers), 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 groundwater treatment plant developers, 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, 344 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 20, 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 groundwater treatment plant developers, 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 groundwater treatment plant developers are there based in Germany?

RevenueBase identified 105 groundwater treatment plant developers 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?

Ludwig Pfeiffer Hoch- UND Tiefbau Gmbh & Co. KG, headquartered in Leipzig, tops this list with the largest team on record.

Which city has the most groundwater treatment plant developers?

Berlin leads with 9 headquartered companies, followed by Aachen (3) and Dresden (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 344 verified decision-maker contacts tracked across these 105 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 20, 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.