Company lists · Data refreshed September 2026

Top 25 Janitorial services based in Germany

Name: Janitorial services based in Germany
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 1,905 companies tracked

RevenueBase identified 1,905 janitorial services headquartered in Germany as of September 2026 and tracks 6,883 professional contacts across them, including 1,208 with verified work emails. Berlin is the largest hub.

This list covers janitorial services 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

1,905Companies

6,883Contacts tracked

1,208Verified emails

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The 25 largest janitorial services based in Germany

Ranked by team size

Top 25 of 1,905 janitorial services 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 janitorial services: 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	ISD Immobilien Service Deutschland Gmbh & Co. KG	Indirect evidence	Lüdenscheid, GermanyHQ checked Sep 20, 2026	5,001-10,000	275 contacts →
	Indirect evidence “Der ISD Immobilien Service Deutschland: Ein etablierter Gebäudedienstleister mit mehr als 40 Jahren Marktexpertise, bundesweit über 100 Niederlassungen und Mitarbeiterinnen und…” Source: RevenueBase Database · checked Sep 20, 2026
2	Dorfner Gmbh & Co. KG	Indirect evidence	Nürnberg, GermanyHQ checked Sep 20, 2026	5,001-10,000	216 contacts →
	Indirect evidence “Dorfner GmbH und Co KG is a facilities services company based out of Germany.” Source: RevenueBase Database · checked Sep 20, 2026
3	Wackler Group	Indirect evidence	München, GermanyHQ checked Sep 20, 2026	5,001-10,000	128 contacts →
	Indirect evidence “Die Wackler Group ist ein modernes Multi-Brand Dienstleistungsunternehmen für die Bereiche Facility Management, Gebäudereinigung, Robotik, Sicherheits- und…” Source: RevenueBase Database · checked Sep 20, 2026
4	Grg. DIE Gebäudereiniger	Indirect evidence	Berlin, GermanyHQ checked Sep 20, 2026	1,001-5,000	106 contacts →
	Indirect evidence “Mit über 100-jähriger Erfahrung, großer Leidenschaft für das Gebäudereinigerhandwerk und qualitätsorientierten, geschulten Mitarbeitenden ist die GRG einer der größten…” Source: RevenueBase Database · checked Sep 20, 2026
5	CWS Cleanrooms	Indirect evidence	Dreieich, GermanyHQ checked Sep 20, 2026	1,001-5,000	85 contacts →
	Indirect evidence “With the services of CWS Cleanrooms, your cleanroom processes run reliably, efficiently and sustainably.” Source: RevenueBase Database · checked Sep 20, 2026
6	Lieblang Dienstleistungsgruppe	Indirect evidence	Mannheim, GermanyHQ checked Sep 20, 2026	5,001-10,000	81 contacts →
	Indirect evidence “Die LIEBLANG Dienstleistungsgruppe ist ein bundesweit agierendes Traditionsunternehmen aus Mannheim.” Source: RevenueBase Database · checked Sep 20, 2026
7	Buzil Company	Indirect evidence	Memmingen, GermanyHQ checked Sep 20, 2026	51-200	65 contacts →
	Indirect evidence “Richtig sauber für eine lebenswerte Zukunft Buzil is the highly competent problem solver and reliable partner for first-class and simultaneously efficient cleaning chemicals in…” Source: RevenueBase Database · checked Sep 20, 2026
8	Vebego Deutschland	Indirect evidence	Wuppertal, GermanyHQ checked Sep 20, 2026	5,001-10,000	63 contacts →
	Indirect evidence “Die Vebego Deutschland ist Teil der internationalen Vebego Group.” Source: RevenueBase Database · checked Sep 20, 2026
9	Werner Companies Gmbh	Indirect evidence	Ergolding, GermanyHQ checked Sep 20, 2026	1,001-5,000	57 contacts →
	Indirect evidence “Der WERNER Spirit - mehr als eine Unternehmensphilosophie.” Source: RevenueBase Database · checked Sep 20, 2026
10	Tiptop Group	Indirect evidence	Zwickau, GermanyHQ checked Sep 20, 2026	1,001-5,000	54 contacts →
	Indirect evidence “Als Dienstleister für Gebäude- und Industriereinigung sorgen wir mit über 3.800 Mitarbeitern an über 30 Niederlassungen und weiteren Betriebsstätten deutschlandweit für saubere…” Source: RevenueBase Database · checked Sep 20, 2026
11	Rahmer Dienstleistungen Gmbh	Indirect evidence	Nürnberg, GermanyHQ checked Sep 20, 2026	1,001-5,000	52 contacts →
	Indirect evidence “RAHMER Dienstleistungen "Wir machen, Sie entspannen"- ganz nach unserem Motto nehmen wir von RAHMER Dienstleistungen unseren Kunden seit über 30 Jahren die Reinigungsarbeit ab.” Source: RevenueBase Database · checked Sep 20, 2026
12	Tereg Gebäudedienste Gmbh	Indirect evidence	Hamburg, GermanyHQ checked Sep 20, 2026	501-1,000	49 contacts →
	Indirect evidence “TEREG Gebäudedienste GmbH Gebäudedienstleistungen Reinigung \| Sanierung \| Services Weidestr.” Source: RevenueBase Database · checked Sep 20, 2026
13	FFR Gmbh	Indirect evidence	Frankfurt Am Main, GermanyHQ checked Sep 20, 2026	201-500	46 contacts →
	Indirect evidence “Wir sind die FFR GmbH – ein Unternehmen der FES-Gruppe und seit über 60 Jahren zuverlässiger Partner für Sauberkeit, Sicherheit und Facility Services im Rhein-Main-Gebiet.” Source: RevenueBase Database · checked Sep 20, 2026
14	SRH Yourservice Gmbh	Indirect evidence	Heidelberg, GermanyHQ checked Sep 20, 2026	1,001-5,000	42 contacts →
	Indirect evidence “SRH YourService GmbH specializes in individual solutions for facility management such as catering, building technology, security and reception services as well as cleaning.” Source: RevenueBase Database · checked Sep 20, 2026
15	Cowa Service Gebäudedienste Gmbh	Indirect evidence	Gottmadingen, GermanyHQ checked Sep 20, 2026	1,001-5,000	38 contacts →
	Indirect evidence “Als Teil der CONRADYGRUPPE ist COWA der Spezialist, wenn es um Hygiene, Sauberkeit und die Funktionsfähigkeit Ihrer Gebäude geht.” Source: RevenueBase Database · checked Sep 20, 2026
16	Rudolf Weber Gebäudereinigung UND Gebäudedienste	Indirect evidence	Essen, GermanyHQ checked Sep 20, 2026	1,001-5,000	37 contacts →
	Indirect evidence “Das Unternehmen Rudolf Weber ist einer der führenden Dienstleister im Bereich Gebäudereinigung und Gebäudediensten in den Bundesländern NRW, Niedersachsen Hessen und…” Source: RevenueBase Database · checked Sep 20, 2026
17	RAY Facility Management Group	Indirect evidence	Holdorf, GermanyHQ checked Sep 20, 2026	1,001-5,000	34 contacts →
	Indirect evidence “Die Aufgabenstellung im modernen Gebäudemanagement ist vielfältig: ein zuverlässiger Partner muss für hohe Qualität, individuellen Service-Umfang und möglichst günstige Preise…” Source: RevenueBase Database · checked Sep 20, 2026
18	Dr. Rettler Service Gmbh	Indirect evidence	Munich, GermanyHQ checked Sep 20, 2026	1,001-5,000	34 contacts →
	Indirect evidence “Dr.” Source: RevenueBase Database · checked Sep 20, 2026
19	Service Concept	Indirect evidence	Kleinmachnow, GermanyHQ checked Sep 20, 2026	501-1,000	32 contacts →
	Indirect evidence “Herzlich Willkommen bei SERVICE CONCEPT - Ihrem Dienstleister rund um Ihre Immobilie.” Source: RevenueBase Database · checked Sep 20, 2026
20	Cebona Gmbh	Indirect evidence	Berlin, GermanyHQ checked Sep 20, 2026	1,001-5,000	31 contacts →
	Indirect evidence “Die CEBONA GmbH ist als Dienstleister für Senioreneinrichtungen und Krankenhäuser überwiegend für Organgesellschaften der Johanniter GmbH tätig.” Source: RevenueBase Database · checked Sep 20, 2026
21	Hälg Facility Management AG	Indirect evidence	Weil Am Rhein, GermanyHQ checked Sep 20, 2026	11-50	27 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
22	Samsic Germany Holding Gmbh	Indirect evidence	GermanyHQ checked Sep 20, 2026	1,001-5,000	27 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
23	HBC Service	Indirect evidence	Berlin, GermanyHQ checked Sep 20, 2026	201-500	25 contacts →
	Indirect evidence “Office management can be so simple!” Source: RevenueBase Database · checked Sep 20, 2026
24	Fletwerk Gmbh	Indirect evidence	Berlin, GermanyHQ checked Sep 20, 2026	11-50	24 contacts →
	Indirect evidence “Gestartet im Jahre 2001 als Servicegesellschaft eines der größten deutschen Wohnungsunternehmen, bieten wir seit 2011 das komplette Dienstleistungsportfolio für die…” Source: RevenueBase Database · checked Sep 20, 2026
25	Bogdol Gebäudemanagement Gmbh	Indirect evidence	Hamburg, GermanyHQ checked Sep 20, 2026	1,001-5,000	22 contacts →
	Indirect evidence “WARUM BOGDOL?” 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: janitorial services. 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 janitorial services.
Partial evidence: Its own public description names part of janitorial services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name janitorial services. 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 1,905 janitorial services based in Germany

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Janitorial services based in Germany at a glance

As of Sep 20, 2026

17.6%Verified-email coverage

3.6Average contacts per company

1-10Median size (employees)

8.0%Largest-city concentration · Berlin

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

987

11-50

300

51-200

195

201-500

104

501-1,000

1,001-5,000

5,001-10,000

10001+

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 1,905 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 janitorial services, 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 “janitorial services”. 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 janitorial services), 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 janitorial services, 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, 1,208 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.

Janitorial services by metro

Janitorial services in Berlin152
Janitorial services in Hamburg91
Janitorial services in Munchen51

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 janitorial services, 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 janitorial services are there based in Germany?

RevenueBase identified 1,905 janitorial services 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?

ISD Immobilien Service Deutschland Gmbh & Co. KG, headquartered in Ludenscheid, tops this list with the largest team on record.

Which city has the most janitorial services?

Berlin leads with 152 headquartered companies, followed by Hamburg (91) and Munchen (51).

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 1,208 verified decision-maker contacts tracked across these 1,905 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.