Company lists · Data refreshed November 2026

Top 25 Wastewater treatment biogas operators based in Germany

RevenueBase identified 135 company matches for wastewater treatment biogas operators associated with Germany as of November 2026 and tracks 1,960 professional contacts across them, including 981 with verified work emails. Berlin is the largest hub.

This list covers company matches for wastewater treatment biogas operators associated with Germany, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
135Companies
1,960Contacts tracked
981Verified emails
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The 25 largest wastewater treatment biogas operators based in Germany

Ranked by team size
Top 25 of 135 company matches for wastewater treatment biogas operators based in Germany, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchHelmstedt, GermanyHQ recorded Nov 6, 20261,001-5,000323 contacts →

Exact match

“EEW ist Knotenpunkt der Kreislauf- und Energiewirtschaft.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchGescher, GermanyHQ recorded Nov 6, 2026201-50076 contacts →

Exact match

“Biogas pioneer since 1998.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchLeipzig, GermanyHQ recorded Nov 6, 202651-20062 contacts →

Exact match

“BALANCE ist eines der führenden Unternehmen in Deutschland, das sich auf den Betrieb und die Optimierung von Biogasanlagen spezialisiert hat.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchVechta, GermanyHQ recorded Nov 6, 202651-20054 contacts →

Exact match

“Since its foundation in 2001, the WELTEC Group from Vechta in Lower Saxony, Germany, has been contributing to the success of the energy transition.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchMünster, GermanyHQ recorded Nov 6, 202651-20051 contacts →

Exact match

“Wir sind Macher der Energiewende: Nachhaltig, effizient und partnerschaftlich gestalten wir die Zukunft für kommende Generationen, indem wir mit unseren Biogasanlagen…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchWestertimke, GermanyHQ recorded Nov 6, 202651-20028 contacts →

Exact match

“Was wir tun, wird Energie Bei Biogas Service Tarmstedt dreht sich alles um die Zukunft der Energieversorgung.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchGöttingen, GermanyHQ recorded Nov 6, 202611-5022 contacts →

Exact match

“Krieg & Fischer is an engineering office with an experienced team of biogas experts consisting of highly-skilled engineers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchNuremberg, GermanyHQ recorded Nov 6, 20261-1022 contacts →

Exact match

“BIOSERV is a network of regional medium-sized organic recyclers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchBabenhausen, GermanyHQ recorded Nov 6, 202651-20021 contacts →

Exact match

“ALMAWATECH – Anlagenbau & Prozesslösungen für industrielle Wassertechnik Die ALMAWATECH GmbH ist ein familiengeführtes Unternehmen mit langer Tradition in der industriellen…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchEinbeck, GermanyHQ recorded Nov 6, 202611-5020 contacts →

Exact match

“FlexBio Technologie GmbH is one of the leading and innovative companies in the field of wastewater and biogas technology.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchPfaffenhofen A.d. Ilm, GermanyHQ recorded Nov 6, 202611-5019 contacts →

Exact match

“AD plants for professionals.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchHerten, GermanyHQ recorded Nov 6, 202651-20016 contacts →

Exact match

“Als Dienstleister und Technologielieferant rund um aktive und stillgelegte Deponien leisten wir einen wichtigen Beitrag zur Entwicklung, Pflege und Erschließung der vom Menschen…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchPfaffenhofen/illm, GermanyHQ recorded Nov 6, 202651-20015 contacts →

Exact match

“Leading Specialist for the Wet Mechanical Pre-Treatment BTA International GmbH is the leading specialist for the wet mechanical pre-treatment of different kinds of waste and the…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchLeutkirch Im Allgäu, GermanyHQ recorded Nov 6, 202651-20014 contacts →

Exact match

“For the construction and expansion of biogas plants, we are a reliable supplier of components and offer extensive agitator, pumping and final storage technology.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchSolms, GermanyHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“Die Firma Herhof ist seit Jahren auf dem Markt der Abfallentsorgung tätig.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchAdelsdorf, GermanyHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchEssen, GermanyHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“Siloxa Engineering AG is a machinery company Essen, North Rhine-Westphalia, Germany.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchDüsseldorf, GermanyHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“At ANKA, we specialize in high-efficiency gas purification solutions for biomethane, landfill gas, and biogas facilities.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchKlipphausen, GermanyHQ recorded Nov 6, 202611-509 contacts →

Exact match

“Seit fast 20 Jahren sind wir Vorreiter in der Entwicklung innovativer Biogasanlagen und setzen mit unserem patentierten "Beregnen statt Rühren"-System neue Maßstäbe in der…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchWiesbaden, GermanyHQ recorded Nov 6, 202611-508 contacts →

Exact match

“ABO Kraft & Wärme betreibt Biogasanlagen und verwertet organische Abfälle.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchLichtenau, GermanyHQ recorded Nov 6, 202611-508 contacts →

Exact match

“Die patentierte enviplan® Mikroflotation hat die herkömmliche DAF (Dissolved Air Flotation) in vielen industriellen und kommunalen Abwasseranwendungen durch unübertroffene…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchHildesheim, GermanyHQ recorded Nov 6, 202651-2007 contacts →

Exact match

“Wir sind die Stadtentwässerung Hildesheim AöR.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchNauen, GermanyHQ recorded Nov 6, 202611-507 contacts →

Exact match

“SH SULPHTEC ist ein weltweit führender Spezialist in der Entwicklung und Herstellung von Anlagen zur Bio, Klär- und Deponiegasentschwefelung sowie zur Abluftreinigung.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchNattenheim, GermanyHQ recorded Nov 6, 202611-507 contacts →

Exact match

“BITControl ist Fachplaner für Verfahrenstechnik, Maschinen- und Elektrotechnik für den Bereich Abwasserreinigung und Abwasserentsorgung.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchUnterföhring, GermanyHQ recorded Nov 6, 202611-506 contacts →

Exact match

“Our company is the worldwide leader in the construction of batch biogas plants for the generation of energy from waste.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 135 wastewater treatment biogas operators based in Germany

See the full list, filter by size, metro and specialty, and access 981 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Wastewater treatment biogas operators based in Germany at a glance

As of Nov 6, 2026
50.1%Verified-email coverage
14.5Average contacts per company
11-50Median size (employees)
3.7%Largest-city concentration · Berlin
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
64
11-50
44
51-200
19
201-500
2
1,001-5,000
2

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 135 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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
Company records associated with Germany whose business descriptions match “wastewater treatment biogas operators” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 981 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “wastewater treatment biogas operators”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many wastewater treatment biogas operators are there based in Germany?

RevenueBase identified 135 company matches for wastewater treatment biogas operators associated with Germany as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

EEW Energy From Waste Gmbh tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most wastewater treatment biogas operators?

Berlin leads with 5 company records, followed by Dresden (3) and Leipzig (3).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 981 professional contacts with verified work emails tracked across these 135 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 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.