Company lists · Data refreshed September 2026

Top 25 Wastewater energy recovery companies based in Germany

Name: Wastewater energy recovery companies based in Germany
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 102 companies tracked

RevenueBase identified 102 wastewater energy recovery companies headquartered in Germany as of September 2026 and tracks 2,092 professional contacts across them, including 823 with verified work emails. Berlin is the largest hub.

This list covers wastewater energy recovery companies 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

102Companies

2,092Contacts tracked

823Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest wastewater energy recovery companies based in Germany

Ranked by team size

Top 25 of 102 wastewater energy recovery companies 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 wastewater energy recovery companies: 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	EEW Energy From Waste Gmbh	Partial evidence	Helmstedt, GermanyHQ checked Sep 19, 2026	1,001-5,000	295 contacts →
	Partial evidence “Die EEW Energy from Waste GmbH (EEW) ist eines der führenden Unternehmen in Europa auf dem Gebiet der thermischen Abfall- und Klärschlammverwertung.” Source: RevenueBase Database · checked Sep 19, 2026
2	Standardkessel Baumgarte Gmbh	Partial evidence	Mülheim An Der Ruhr, GermanyHQ checked Sep 19, 2026	201-500	149 contacts →
	Partial evidence “As an energy supplier, municipality, or industrial company, are you seeking a customized solution for the thermal utilization of sustainable fuels?” Source: RevenueBase Database · checked Sep 19, 2026
3	Envirochemie Gmbh	Indirect evidence	Rossdorf, GermanyHQ checked Sep 19, 2026	1,001-5,000	146 contacts →
	Indirect evidence “EnviroChemie is a system provider for holistic industrial water management.” Source: RevenueBase Database · checked Sep 19, 2026
4	Passavant Energy & Environment	Indirect evidence	Frankfurt, GermanyHQ checked Sep 19, 2026	51-200	134 contacts →
	Indirect evidence “Passavant has always been a name synonymous with excellence of execution through innovation.” Source: RevenueBase Database · checked Sep 19, 2026
5	HST Systemtechnik Gmbh & Co.Kg	Partial evidence	Meschede, GermanyHQ checked Sep 19, 2026	201-500	72 contacts →
	Partial evidence “HST Systemtechnik is a provider for products, systems and solutions for the water and wastewater market worldwide since 1985, with more than project references.” Source: RevenueBase Database · checked Sep 19, 2026
6	H2o Gmbh. Leaders In Zero Liquid Discharge	Indirect evidence	Steinen, GermanyHQ checked Sep 19, 2026	51-200	70 contacts →
	Indirect evidence “Water is one of the most precious resources on our planet.” Source: RevenueBase Database · checked Sep 19, 2026
7	GI Aqua Tech	Partial evidence	Groß-gerau, GermanyHQ checked Sep 19, 2026	51-200	49 contacts →
	Partial evidence “GI AQUA TECH provides innovative wastewater treatment solutions, committed to a sustainable future for people and planet.” Source: RevenueBase Database · checked Sep 19, 2026
8	Oschatz Power Gmbh	Strong evidence	Essen, GermanyHQ checked Sep 19, 2026	51-200	34 contacts →
	Strong evidence “Waste heat recovery systems for converting industrial waste heat into steam and other forms of energy are at the heart of our portfolio.” Source: RevenueBase Database · checked Sep 19, 2026
9	KMT Gmbh	Indirect evidence	Munchen, GermanyHQ checked Sep 19, 2026	11-50	33 contacts →
	Indirect evidence “KÜTTNER und MARTIN sind langjährig erfahrene Anlagenbauer in ihren jeweiligen Geschäftsbereichen.” Source: RevenueBase Database · checked Sep 19, 2026
10	Envirodts Gmbh	Indirect evidence	Friedberg (hessen), GermanyHQ checked Sep 19, 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 19, 2026
11	ATB Water Gmbh	Partial evidence	Porta Westfalica, GermanyHQ checked Sep 19, 2026	51-200	27 contacts →
	Partial evidence “ATB WATER - Small sewage treatment plants, wastewater treatment technology and sewage technology for every challenge in industry.” Source: RevenueBase Database · checked Sep 19, 2026
12	Heat 11 Gmbh & Co. KG	Indirect evidence	Bielefeld, GermanyHQ checked Sep 19, 2026	51-200	21 contacts →
	Indirect evidence “Our commitment: Heat transfer in perfection!” Source: RevenueBase Database · checked Sep 19, 2026
13	Almawatech	Indirect evidence	Babenhausen, GermanyHQ checked Sep 19, 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 19, 2026
14	Flexbio Technologie Gmbh	Partial evidence	Einbeck, GermanyHQ checked Sep 19, 2026	11-50	19 contacts →
	Partial evidence “FlexBio Technologie GmbH is one of the leading and innovative companies in the field of wastewater and biogas technology.” Source: RevenueBase Database · checked Sep 19, 2026
15	Bioworks Verfahrenstechnik	Indirect evidence	Putzbrunn, GermanyHQ checked Sep 19, 2026	11-50	18 contacts →
	Indirect evidence “BIOWORKS® offers full design and execution of process solutions for a whole variety of waste water treatment.” Source: RevenueBase Database · checked Sep 19, 2026
16	Cobos Fluid Service Gmbh	Indirect evidence	München, GermanyHQ checked Sep 19, 2026	11-50	14 contacts →
	Indirect evidence “cobos Fluid Service ist ein industrieller Dienstleister, der auf Basis von Betreibermodellen industrielle Abwässer, Emulsionen und Spülwässer direkt auf dem Kundengelände…” Source: RevenueBase Database · checked Sep 19, 2026
17	KLARO	Partial evidence	Bayreuth, GermanyHQ checked Sep 19, 2026	11-50	13 contacts →
	Partial 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 19, 2026
18	Wessel-Umwelttechnik Gmbh	Partial evidence	Hamburg, GermanyHQ checked Sep 19, 2026	11-50	11 contacts →
	Partial evidence “Energy-efficient environmental plants and systems become more important in our age of climate protection.” Source: RevenueBase Database · checked Sep 19, 2026
19	ZWT Wasser-Und Abwassertechnik Gmbh	Indirect evidence	Bayreuth, GermanyHQ checked Sep 19, 2026	51-200	10 contacts →
	Indirect evidence “Zuverlässige wegweisende Technik Seit 25 Jahren sind wir zuverlässiger Partner der Kommunen, Zweckverbände und Industrie wenn es um wirtschaftliche Lösungen in der Wasser- und…” Source: RevenueBase Database · checked Sep 19, 2026
20	Up2e Gmbh	Indirect evidence	Rain, GermanyHQ checked Sep 19, 2026	11-50	9 contacts →
	Indirect evidence “up2e!” Source: RevenueBase Database · checked Sep 19, 2026
21	Bremer PRO Aqua Wasser- UND Abwassertechnik Gmbh	Indirect evidence	Bremen, GermanyHQ checked Sep 19, 2026	11-50	8 contacts →
	Indirect evidence “Die Bremer pro aqua Wasser- und Abwasser GmbH arbeitet mit einem seit Jahren eingespielten Team aus hochqualifizierten und erfahrenen Ingenieuren, Technikern und Monteuren.” Source: RevenueBase Database · checked Sep 19, 2026
22	LKT Lausitzer Klärtechnik Gmbh	Indirect evidence	Luckau, GermanyHQ checked Sep 19, 2026	51-200	8 contacts →
	Indirect evidence “LKT LAUSITZER KLÄRTECHNIK GMBH is a company based out of Luckau, Brandenburg, Germany.” Source: RevenueBase Database · checked Sep 19, 2026
23	Bitcontrol Gmbh	Indirect evidence	Nattenheim, GermanyHQ checked Sep 19, 2026	11-50	8 contacts →
	Indirect evidence “BITControl ist Fachplaner für Verfahrenstechnik, Maschinen- und Elektrotechnik für den Bereich Abwasserreinigung und Abwasserentsorgung.” Source: RevenueBase Database · checked Sep 19, 2026
24	Aqua Plus Wasser- UND Recyclingsysteme Gmbh	Indirect evidence	Böbingen An Der Rems, GermanyHQ checked Sep 19, 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 19, 2026
25	Aquato Umwelttechnologien Gmbh	Indirect evidence	Herford, GermanyHQ checked Sep 19, 2026	1-10	7 contacts →
	Indirect evidence 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: wastewater energy recovery companies. 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 wastewater energy recovery companies.
Partial evidence: Its own public description names part of wastewater energy recovery companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name wastewater energy recovery companies. 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 102 wastewater energy recovery companies based in Germany

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 823 reachable decision-makers.

Free signup · no credit card

View the full list →

Wastewater energy recovery companies based in Germany at a glance

As of Sep 19, 2026

39.3%Verified-email coverage

20.5Average contacts per company

11-50Median size (employees)

3.9%Largest-city concentration · Berlin

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 102 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 wastewater energy recovery companies, 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 “wastewater energy recovery companies”. 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 wastewater energy recovery companies), 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 wastewater energy recovery companies, 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, 823 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 wastewater energy recovery companies, 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 wastewater energy recovery companies are there based in Germany?

RevenueBase identified 102 wastewater energy recovery companies 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?

EEW Energy From Waste Gmbh, headquartered in Helmstedt, tops this list with the largest team on record.

Which city has the most wastewater energy recovery companies?

Berlin leads with 4 headquartered companies, followed by Hamburg (4) 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 823 verified decision-maker contacts tracked across these 102 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.

Ready to reach these companies? Verified emails and direct dials for all 102 wastewater energy recovery companies based in Germany. Start with a free account, no credit card.

Download this list →

Related lists

Wastewater energy recovery companies by geography

Browse the directory

Browse: Companies home · All Germany lists · All Wastewater energy recovery companies lists · New lists

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.