Company lists · Data refreshed November 2026

Top 19 Groundwater cleanup services based in Germany

RevenueBase identified 47 company matches for groundwater cleanup services associated with Germany as of November 2026 and tracks 330 professional contacts across them, including 135 with verified work emails. Berlin is the largest hub.

This list covers company matches for groundwater cleanup services 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
47Companies
330Contacts tracked
135Verified emails
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The 19 largest groundwater cleanup services based in Germany

Ranked by team size
Top 19 of 47 company matches for groundwater cleanup services 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 matchHaren, GermanyHQ recorded Nov 6, 2026501-1,00097 contacts →

Exact match

“Water has been our passion for more than 60 years.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchMühlhausen, GermanyHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“IEG specializes in in-situ soil and groundwater remediation and is a leading supplier of equipment and processes for hydraulic, microbiological and chemical remediation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchMunich, GermanyHQ recorded Nov 6, 202611-508 contacts →

Exact match

“Die BASE TECHNOLOGIES GmbH ist seit über 20 Jahren aktiv für die ökologische Transformation und unterstützt Unternehmen mit Lösungen, die die Schonung von Ressourcen gleichermaßen…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchFellbach, GermanyHQ recorded Nov 6, 202611-508 contacts →

Exact match

“reconsite GmbH is an environmental services company based out of Auberlenstraße 13, Fellbach, Baden-Wuerttemberg, Germany.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchGanderkesee, GermanyHQ recorded Nov 6, 2026201-5007 contacts →

Exact match

Recorded description not available.

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

Exact match

“Die Firma Geoservice Henkel ist ihr Ansprechpartner für geotechnische Dienstleistungen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchStuttgart, GermanyHQ recorded Nov 6, 202611-505 contacts →

Exact match

“Wir sind ein bundesweit tätiges Ingenieurbüro mit derzeit 9 Mitarbeitern in den Bereichen Altlastensanierung, Flächenrecycling, Hydrogeologie und Grundwassermodellierung mit Sitz…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchEssen, GermanyHQ recorded Nov 6, 202611-505 contacts →

Exact match

“Intrapore GmbH is a provider of innovative methods for in situ groundwater and contaminated site remediation and the leading provider in particle-based in situ groundwater…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchBerlin, GermanyHQ recorded Nov 6, 202611-505 contacts →

Exact match

“Die BfU GmbH ist ein führendes Ingenieurbüro für Umweltberatung und Schadstoffsanierung mit über 30 Jahren Erfahrung.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchDormettingen, GermanyHQ recorded Nov 6, 202611-504 contacts →

Exact match

“Industriewartung Süd Kurz GmbH & Co.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchGoch, GermanyHQ recorded Nov 6, 202611-504 contacts →

Exact match

“De Vet Wasserbau ist Experte für Brunnenbohrungen und den Bau von Grubenentwässerungen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchAlzenau, GermanyHQ recorded Nov 6, 20261-103 contacts →

Exact match

“Die Spezialisten f r ialUmweltschutz und -sanierung.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchAachen, GermanyHQ recorded Nov 6, 20261-103 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchBerlin, GermanyHQ recorded Nov 6, 202611-503 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchBerlin, GermanyHQ recorded Nov 6, 20261-102 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchOsterrönfeld, GermanyHQ recorded Nov 6, 20261-102 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchLübeck, GermanyHQ recorded Nov 6, 202611-501 contacts →

Exact match

“Die POSSEHL Umweltschutz GmbH, eine Tochtergesellschaft der 1847 gegründeten, international tätigen Unternehmensgruppe L.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchWarendorf, GermanyHQ recorded Nov 6, 20261-101 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchOldenburg, GermanyHQ recorded Nov 6, 20261-101 contacts →

Exact match

Recorded description not available.

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

Showing 19 of 47 groundwater cleanup services based in Germany

See the full list, filter by size, metro and specialty, and access 135 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Groundwater cleanup services based in Germany at a glance

As of Nov 6, 2026
40.9%Verified-email coverage
7.0Average contacts per company
11-50Median size (employees)
17.0%Largest-city concentration · Berlin
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
17
11-50
24
51-200
1
201-500
3
501-1,000
1

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 47 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 “groundwater cleanup services” 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 135 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 “groundwater cleanup services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many groundwater cleanup services are there based in Germany?

RevenueBase identified 47 company matches for groundwater cleanup services 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?

Hölscher tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most groundwater cleanup services?

Berlin leads with 8 company records, followed by Aachen (3) and Stuttgart (2).

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 135 professional contacts with verified work emails tracked across these 47 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.