Company lists · Data refreshed September 2026

Top 25 Janitorial services companies worldwide

Name: Janitorial services companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 26,988 companies tracked

RevenueBase identified 26,988 janitorial services companies worldwide as of September 2026 and tracks 390,173 professional contacts across them, including 59,411 with verified work emails and 0 with mobile numbers. The United States is the largest market and London the largest hub.

This list covers janitorial services companies worldwide, 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. Country and city lists for janitorial services companies follow the table.

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

26,988Companies

390,173Contacts tracked

59,411Verified emails

0Mobile numbers

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The 25 largest janitorial services companies worldwide

Ranked by team size

Top 25 of 26,988 janitorial services companies worldwide, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to janitorial services 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	Cintas	Indirect evidence	Mason, OH, United StatesHQ checked Sep 19, 2026	10001+	26,755 contacts →
	Indirect evidence “Cintas Corporation, a Fortune 500 company headquartered in Cincinnati, specializes in helping businesses of all sizes get Ready™ for the Workday®.” Source: RevenueBase Database · checked Sep 19, 2026
2	ABM Industries	Indirect evidence	NY, United StatesHQ checked Sep 19, 2026	10001+	22,070 contacts →
	Indirect evidence “ABM is one of the world’s largest providers of integrated facility, engineering, and infrastructure solutions.” Source: RevenueBase Database · checked Sep 19, 2026
3	Grupo Eulen	Indirect evidence	Madrid, SpainHQ checked Sep 19, 2026	10001+	12,909 contacts →
	Indirect evidence “En Grupo EULEN somos referente a nivel global y líder nacional en la prestación de servicios especializados a empresas, instituciones y administraciones públicas.” Source: RevenueBase Database · checked Sep 19, 2026
4	Verzani & Sandrini	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 19, 2026	10001+	10,554 contacts →
	Indirect evidence “Com uma história sólida de sucesso desde sua fundação em 1967, a Verzani & Sandrini se destaca como líder nacional em diversos serviços terceirizados.” Source: RevenueBase Database · checked Sep 19, 2026
5	ISS Facility Services UK	Indirect evidence	Weybridge, United KingdomHQ checked Sep 19, 2026	10001+	5,702 contacts →
	Indirect evidence “ISS is a leading workplace experience and facilities management company with more than 125 years of global experience.” Source: RevenueBase Database · checked Sep 19, 2026
6	Grupo Orbenk	Indirect evidence	Joinville, BrazilHQ checked Sep 19, 2026	10001+	3,914 contacts →
	Indirect evidence “Há 39 anos no mercado, a Orbenk oferece qualidade e eficiência em terceirização de mão de obra especializada e serviços com foco em limpeza e conservação de ambientes.” Source: RevenueBase Database · checked Sep 19, 2026
7	Atalian	Indirect evidence	Vitry-sur-seine, FranceHQ checked Sep 19, 2026	10001+	3,641 contacts →
	Indirect evidence “ATALIAN is a major operator in Cleaning and Facility Management in France and Europe.” Source: RevenueBase Database · checked Sep 19, 2026
8	C&w Services	Indirect evidence	Needham, MA, United StatesHQ checked Sep 19, 2026	10001+	3,322 contacts →
	Indirect evidence “Raising the Value of Facilities Services.” Source: RevenueBase Database · checked Sep 19, 2026
9	KBS	Indirect evidence	Oceanside, CA, United StatesHQ checked Sep 19, 2026	10001+	3,229 contacts →
	Indirect evidence “KBS is a trusted partner to leading operations and facility managers across North America.” Source: RevenueBase Database · checked Sep 19, 2026
10	GDI Integrated Facility Services	Indirect evidence	Lasalle, QC, CanadaHQ checked Sep 19, 2026	10001+	2,560 contacts →
	Indirect evidence “GDI provides unequalled capability and expertise in the facility services sector across Canada and the United States.” Source: RevenueBase Database · checked Sep 19, 2026
11	Atalian Servest UK & Ireland	Indirect evidence	Bury St Edmunds, United KingdomHQ checked Sep 19, 2026	10001+	2,521 contacts →
	Indirect evidence “We have moved following our merger with OCS, please follow us at @OCS-Group for up to date news and stories.” Source: RevenueBase Database · checked Sep 19, 2026
12	CSU Cleaning Services	Indirect evidence	Uden, NetherlandsHQ checked Sep 19, 2026	10001+	2,483 contacts →
	Indirect evidence “Onder het motto ‘Scherper, Slimmer, Schoner’ is CSU vanuit 10 vestigingen landelijk actief in de schoonmaakbranche.” Source: RevenueBase Database · checked Sep 19, 2026
13	Cleaning Services Group	Indirect evidence	Danvers, MA, United StatesHQ checked Sep 19, 2026	n/a	2,418 contacts →
	Indirect evidence “Cleaning Services Group, Inc.(CSG) is a multi-faceted, national building services company dedicated to providing our clients with cost effective cleaning and maintenance solutions…” Source: RevenueBase Database · checked Sep 19, 2026
14	Khidmah	Indirect evidence	Abu Dhabi, United Arab EmiratesHQ checked Sep 19, 2026	1,001-5,000	2,395 contacts →
	Indirect evidence “Our facility management solutions are designed to offer the perfect mix of services for your facility and budget.” Source: RevenueBase Database · checked Sep 19, 2026
15	Onet Propreté ET Services	Indirect evidence	Marseille, FranceHQ checked Sep 19, 2026	10001+	2,304 contacts →
	Indirect evidence “Préserver l’hygiène et la propreté de votre environnement de travail Onet est l’acteur référent en France et en Europe de la propreté et des services associés.” Source: RevenueBase Database · checked Sep 19, 2026
16	Samsic Facility	Indirect evidence	Paris, FranceHQ checked Sep 19, 2026	10001+	2,259 contacts →
	Indirect evidence “Samsic FACILITY provides sustainable support to your organisations, enhancing the working environments, the well-being and the health of its occupants.” Source: RevenueBase Database · checked Sep 19, 2026
17	Stanley Steemer	Indirect evidence	Dublin, OH, United StatesHQ checked Sep 19, 2026	1,001-5,000	2,094 contacts →
	Indirect evidence “We started with one man, a van and a vision…to be the best.” Source: RevenueBase Database · checked Sep 19, 2026
18	Zahran Facilities Management	Indirect evidence	Riyadh, Saudi ArabiaHQ checked Sep 19, 2026	10001+	1,959 contacts →
	Indirect evidence “Zahran FM is the largest and most accomplished FM company in the Kingdom of Saudi Arabia, founded on a reputation for service excellence that spans more than 40 years, and…” Source: RevenueBase Database · checked Sep 19, 2026
19	Coopservice	Indirect evidence	Reggio Emilia, ItalyHQ checked Sep 19, 2026	10001+	1,862 contacts →
	Indirect evidence “Il nostro Purpose: “Abbiamo a cuore e valorizziamo i vostri mondi” Ogni attività umana ha bisogno di luoghi per compiersi: abitazioni, uffici, industrie, centri commerciali…” Source: RevenueBase Database · checked Sep 19, 2026
20	SSC Services For Education	Indirect evidence	Knoxville, TN, United StatesHQ checked Sep 19, 2026	10001+	1,807 contacts →
	Indirect evidence “SSC Services For Education is the premier provider of custom facility services in educational spaces.” Source: RevenueBase Database · checked Sep 19, 2026
21	ASITO	Indirect evidence	Almelo, NetherlandsHQ checked Sep 19, 2026	10001+	1,471 contacts →
	Indirect evidence “Asito staat voor topkwaliteit in facilitaire dienstverlening.” Source: RevenueBase Database · checked Sep 19, 2026
22	Spsp Oficial	Indirect evidence	Marilia, BrazilHQ checked Sep 19, 2026	5,001-10,000	1,395 contacts →
	Indirect evidence “Fundada em 20 de agosto de 1994, atuante no mercado de prestação de serviços, a SPSP é uma das mais conceituadas empresas de terceirização do país.” Source: RevenueBase Database · checked Sep 19, 2026
23	Aramark Facilities Management	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 19, 2026	10001+	1,295 contacts →
	Indirect evidence “At Aramark Facilities Management, we’re raising the bar on facilities management.” Source: RevenueBase Database · checked Sep 19, 2026
24	Mastercorp, INC	Indirect evidence	Orlando, FL, United StatesHQ checked Sep 19, 2026	5,001-10,000	1,246 contacts →
	Indirect evidence “With over 45 years of experience, MasterCorp has proudly served as a trusted partner in the hospitality services industry.” Source: RevenueBase Database · checked Sep 19, 2026
25	City Wide Facility Solutions	Indirect evidence	Lenexa, KS, United StatesHQ checked Sep 19, 2026	n/a	1,192 contacts →
	Indirect evidence “Founded in 1961, City Wide has become synonymous with building maintenance in its home Kansas City market and now has over 100 franchise locations in the United States and Canada.” 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: janitorial services 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 janitorial services companies.
Partial evidence: Its own public description names part of janitorial services companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name janitorial services 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 26,988 janitorial services companies worldwide

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Janitorial services companies worldwide at a glance

As of Sep 19, 2026

15.2%Verified-email coverage

14.5Average contacts per company

11-50Median size (employees)

1.6%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11,240

11-50

8,358

51-200

4,017

201-500

1,465

501-1,000

646

1,001-5,000

628

5,001-10,000

10001+

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 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.
Coverage: 34 countries, largest first: the United States, the United Kingdom, France, Canada, Germany, Brazil, Australia, Italy, the Netherlands, Spain and 24 more. Country and city lists for janitorial services companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “janitorial services 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 janitorial services 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 janitorial services companies, and records with no verified work email.
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, 59,411 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.

Janitorial services companies by location

93 lists · largest first

Every Janitorial services companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 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 janitorial services companies are there worldwide?

RevenueBase identified 26,988 janitorial services companies worldwide 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?

Cintas, headquartered in Mason, tops this list with the largest team on record.

Which country has the most janitorial services companies?

The United States leads with 9,628 companies, followed by the United Kingdom (2,505) and France (1,646). Every janitorial services companies list by country and city is linked on this page.

Which city has the most janitorial services companies?

London leads with 432 headquartered companies, followed by Dubai (261) and Sao Paulo (233).

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 59,411 verified decision-maker contacts tracked across these 26,988 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.

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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.