Company lists · Data refreshed November 2026

Top 25 Convention center cleaning services worldwide

Name: Convention center cleaning services worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 13,876 companies tracked

RevenueBase identified 13,876 company matches for convention center cleaning services worldwide as of November 2026 and tracks 171,031 professional contacts across them, including 22,043 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for convention center cleaning services worldwide, 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. Country and city lists for convention center cleaning services follow the table.

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

13,876Companies

171,031Contacts tracked

22,043Verified emails

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The 25 largest convention center cleaning services worldwide

Ranked by team size

Top 25 of 13,876 company matches for convention center cleaning services worldwide, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Atalian	Exact match	Vitry-sur-seine, FranceHQ recorded Nov 6, 2026	10001+	4,008 contacts →
	Exact match “ATALIAN is a major operator in Cleaning and Facility Management in France and Europe.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	C&w Services	Exact match	Needham, MA, United StatesHQ recorded Nov 6, 2026	10001+	3,531 contacts →
	Exact match “Raising the Value of Facilities Services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	KBS	Exact match	Oceanside, CA, United StatesHQ recorded Nov 6, 2026	10001+	3,428 contacts →
	Exact match “KBS is a trusted partner to leading operations and facility managers across North America.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Cleaning Services Group	Exact match	Danvers, MA, United StatesHQ recorded Nov 6, 2026	n/a	2,743 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Onet Propreté ET Services	Exact match	Marseille, FranceHQ recorded Nov 6, 2026	10001+	2,556 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	GDI Integrated Facility Services	Exact match	Lasalle, QC, CanadaHQ recorded Nov 6, 2026	10001+	2,532 contacts →
	Exact match “GDI provides unequalled capability and expertise in the facility services sector across Canada and the United States.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	ABM Janitorial Services	Exact match	Sugar Land, TX, United StatesHQ recorded Nov 6, 2026	10001+	2,394 contacts →
	Exact match “Commercial Cleaning Service That Shines There’s more to janitorial services than a mop hitting the floor.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Cleaning Company	Exact match	United StatesHQ recorded Nov 6, 2026	n/a	2,053 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Coopservice	Exact match	Reggio Emilia, ItalyHQ recorded Nov 6, 2026	10001+	1,985 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	SSC Services For Education	Exact match	Knoxville, TN, United StatesHQ recorded Nov 6, 2026	10001+	1,921 contacts →
	Exact match “SSC Services For Education is the premier provider of custom facility services in educational spaces.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	ASITO	Exact match	Almelo, NetherlandsHQ recorded Nov 6, 2026	10001+	1,644 contacts →
	Exact match “Asito staat voor topkwaliteit in facilitaire dienstverlening.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Mastercorp, INC	Exact match	Orlando, FL, United StatesHQ recorded Nov 6, 2026	5,001-10,000	1,366 contacts →
	Exact match “With over 45 years of experience, MasterCorp has proudly served as a trusted partner in the hospitality services industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	The Budd Group	Exact match	Winston-salem, NC, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,298 contacts →
	Exact match “The Budd Group is a leading facilities services company, delivering high quality janitorial, maintenance and landscaping services to clients throughout the Southeast.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Brilladora EL Diamante S.A	Exact match	Cali, ColombiaHQ recorded Nov 6, 2026	5,001-10,000	1,291 contacts →
	Exact match “Somos una compañía nacional dedicada a la prestación de Servicios Especializados de Limpieza y Mantenimiento, generamos más de 7.400 empleos directos en todo el país, con más de…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	CNS Nacional DE Serviços	Exact match	Rio De Janeiro, BrazilHQ recorded Nov 6, 2026	5,001-10,000	1,272 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Diversified Maintenance	Exact match	Tampa, FL, United StatesHQ recorded Nov 6, 2026	5,001-10,000	1,269 contacts →
	Exact match “Diversified Maintenance goes above and beyond to make sure our operational excellence and specialized cleaning and maintenance services help businesses run smoothly and seamlessly.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	City Wide Facility Solutions	Exact match	Lenexa, MO, United StatesHQ recorded Nov 6, 2026	n/a	1,247 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	LOS Soles Internacional S.A	Exact match	Buenos Aires, ArgentinaHQ recorded Nov 6, 2026	1,001-5,000	980 contacts →
	Exact match “Servicios de Limpieza de Alta Calidad para Empresas, Hoteles, Laboratorios, Centros de Salud y otros.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	BEE Clean Building Maintenance	Exact match	Winnipeg, ON, CanadaHQ recorded Nov 6, 2026	10001+	910 contacts →
	Exact match “For over 50 years, Bee-Clean Building Maintenance has been providing expert cleaning services to valued clients in the public and private sectors across Canada.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Marsden Services	Exact match	St. Paul, MN, United StatesHQ recorded Nov 6, 2026	5,001-10,000	836 contacts →
	Exact match “Established in 1952 by Skip Marsden, Marsden Services is one of the largest privately-held facility services organizations in the United States.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Kimco Facility Services, LLC	Exact match	Atlanta, GA, United StatesHQ recorded Nov 6, 2026	5,001-10,000	813 contacts →
	Exact match “From one-off projects to ongoing contracts, Kimco gets it done.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Auto-Chlor System	Exact match	Mountain View, CA, United StatesHQ recorded Nov 6, 2026	501-1,000	791 contacts →
	Exact match “A trusted partner for over 85 years in nearly one million customer locations, Auto-Chlor continuously leads the nation in quality service and superior cleaning solutions to…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Bidvest Prestige Cleaning	Exact match	Windhoek, NamibiaHQ recorded Nov 6, 2026	201-500	768 contacts →
	Exact match “Bidvest Prestige Cleaning is the leading specialist in world-class outsourced solutions in Namibia.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Excellerate Services	Exact match	Durban, South AfricaHQ recorded Nov 6, 2026	10001+	756 contacts →
	Exact match “Established in 1978, Excellerate Services is one of South Africa's most respected multi-services businesses, and the standard we hold ourselves to has a name: The Better Way.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	4m Building Solutions	Exact match	St. Louis, MO, United StatesHQ recorded Nov 6, 2026	5,001-10,000	674 contacts →
	Exact match “WHAT WE DO Property and facility managers trust 4M as their facility services partner because we back up our work.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “convention center cleaning services”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 13,876 convention center cleaning services worldwide

See the full list, filter by size, metro and specialty, and access 22,043 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Convention center cleaning services worldwide at a glance

As of Nov 6, 2026

12.9%Verified-email coverage

12.3Average contacts per company

11-50Median size (employees)

1.0%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

5,276

11-50

4,346

51-200

2,345

201-500

886

501-1,000

352

1,001-5,000

309

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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.
Coverage: Every country. Country and city lists for convention center cleaning services are linked below.
What qualifies: Company records worldwide whose business descriptions match “convention center cleaning 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. 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 22,043 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.

Convention center cleaning services by location

46 lists · largest first

Every Convention center cleaning services 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 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 “convention center cleaning services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many convention center cleaning services are there worldwide?

RevenueBase identified 13,876 company matches for convention center cleaning services worldwide 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?

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

Which country has the most convention center cleaning services?

The United States leads with 4,517 companies, followed by Canada (826) and France (800). Every convention center cleaning services list by country and city is linked on this page.

Which city has the most convention center cleaning services?

London leads with 140 company records, followed by New York (96) and Sao Paulo (94).

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 22,043 professional contacts with verified work emails tracked across these 13,876 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.