Company lists · Data refreshed October 2026

Top 25 Cleanroom cleaning & maintenance companies based in the United States

Name: Cleanroom cleaning & maintenance companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 23, 2026 3,004 companies tracked

RevenueBase identified 3,004 company matches for cleanroom cleaning & maintenance companies associated with the United States as of October 2026 and tracks 34,267 professional contacts across them, including 4,834 with verified work emails. New York is the largest hub.

This list covers company matches for cleanroom cleaning & maintenance companies associated with the United States, 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 October 23, 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 Oct 23, 2026 How this list was built

3,004Companies

34,267Contacts tracked

4,834Verified emails

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The 25 largest cleanroom cleaning & maintenance companies based in the United States

Ranked by team size

Top 25 of 3,004 company matches for cleanroom cleaning & maintenance companies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 23, 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	Cleaning Services Group	Exact match	Danvers, MA, United StatesHQ recorded Oct 23, 2026	n/a	2,530 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 · Oct 23, 2026 · View company records in RevenueBase
2	ABM Janitorial Services	Exact match	Sugar Land, TX, United StatesHQ recorded Oct 23, 2026	10001+	2,328 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 · Oct 23, 2026 · View company records in RevenueBase
3	Stanley Steemer	Exact match	Dublin, OH, United StatesHQ recorded Oct 23, 2026	1,001-5,000	2,161 contacts →
	Exact match “We started with one man, a van and a vision…to be the best.” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
4	Diversified Maintenance	Exact match	Tampa, FL, United StatesHQ recorded Oct 23, 2026	5,001-10,000	1,224 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 · Oct 23, 2026 · View company records in RevenueBase
5	Jan-Pro Of Utah	Exact match	Midvale, UT, United StatesHQ recorded Oct 23, 2026	n/a	896 contacts →
	Exact match “A Fresh Perspective on Commercial Cleaning Where It's Only Clean When Our Processes Confirm It's Clean!” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
6	Flagship Facility Services, INC	Exact match	San Jose, CA, United StatesHQ recorded Oct 23, 2026	5,001-10,000	798 contacts →
	Exact match “Flagship Facility Services is a facilities maintenance company headquartered in Southlake, Texas.” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
7	Office Pride Commercial Cleaning Services	Exact match	Palm Harbor, FL, United StatesHQ recorded Oct 23, 2026	1,001-5,000	485 contacts →
	Exact match “Office Pride is recognized as one of the most advanced and admired full service commercial cleaning / janitorial companies in the commercial cleaning / building services industry.” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
8	Coit Cleaning And Restoration Services	Exact match	Burlingame, CA, United StatesHQ recorded Oct 23, 2026	51-200	456 contacts →
	Exact match “Since 1950, we’ve been committed to creating cleaner homes, businesses, and lives-guaranteeing results others can’t.” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
9	FBG Facility Services	Exact match	Omaha, NE, United StatesHQ recorded Oct 23, 2026	1,001-5,000	386 contacts →
	Exact match “Overview Call it an occupational hazard, but at FBG Facility Services, we are a bit obsessed when it comes to cleaning.” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
10	Executive Management Services, INC	Exact match	Greenfield, IN, United StatesHQ recorded Oct 23, 2026	1,001-5,000	366 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
11	RED Coats, INC	Exact match	Bethesda, MD, United StatesHQ recorded Oct 23, 2026	5,001-10,000	345 contacts →
	Exact match “Commercial Cleaning & Facility Services \| Family- and Woman-Owned \| Trusted Since 1960 Founded over 60 years ago by Barbara K.” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
12	CCS Facility Services	Exact match	Denver, CO, United StatesHQ recorded Oct 23, 2026	5,001-10,000	318 contacts →
	Exact match “Facility vendors should support your work, not hold it back.” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
13	Enviro-Clean Services, INC	Exact match	Holland, MI, United StatesHQ recorded Oct 23, 2026	1,001-5,000	296 contacts →
	Exact match “We are a Michigan-based commercial cleaning and facility maintenance company operating continuously since 1975.” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
14	Controlled Contamination Services	Exact match	Dallas, TX, United StatesHQ recorded Oct 23, 2026	1,001-5,000	254 contacts →
	Exact match “Controlled Contamination Services is the leading provider of enterprise solutions for the pharmaceutical, biotech, medical device, electronic, data center, semiconductor…” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
15	Kleenmark	Exact match	Madison, WI, United StatesHQ recorded Oct 23, 2026	501-1,000	206 contacts →
	Exact match “When you choose KleenMark to care for your facility's cleanliness, you'll get a personalized scope of work to fit your needs, the confidence to know that scope is being completed…” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
16	AES Cleanroom Technology	Exact match	Montgomeryville, PA, United StatesHQ recorded Oct 23, 2026	201-500	204 contacts →
	Exact match “The leader in Modular Cleanroom Systems AES is the leader in design, construction, and manufacture of modular cleanroom systems and custom cleanroom equipment for life science and…” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
17	Brilliant General Maintenance, INC	Exact match	San Jose, CA, United StatesHQ recorded Oct 23, 2026	1,001-5,000	194 contacts →
	Exact match “Brilliant General Maintenance, Inc excels in delivering top-tier janitorial services for commercial spaces, including cleanrooms, office buildings, manufacturing facilities, and…” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
18	Azzur Group	Exact match	Burlington, MA, United StatesHQ recorded Oct 23, 2026	51-200	193 contacts →
	Exact match “Visit chrysalisgxp.com for GMP-ready cleanrooms and services.” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
19	Corporate Cleaning Group	Exact match	Livonia, MI, United StatesHQ recorded Oct 23, 2026	201-500	188 contacts →
	Exact match “At Corporate Cleaning Group (CCG), we go beyond just making spaces look clean-we ensure they are clean, safe, and healthy.” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
20	Janitronics Building Services	Exact match	Waltham, MA, United StatesHQ recorded Oct 23, 2026	1,001-5,000	185 contacts →
	Exact match “Since 1977, Janitronics Building Services has provided customized cleaning and janitorial services to New England’s most prestigious companies.” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
21	Pegasus	Exact match	San Diego, CA, United StatesHQ recorded Oct 23, 2026	1,001-5,000	181 contacts →
	Exact match “Pegasus has been protecting critical environments since 1969.” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
22	Service By Medallion	Exact match	Mountain View, CA, United StatesHQ recorded Oct 23, 2026	501-1,000	180 contacts →
	Exact match “With over 45 years of award-winning experience, Service by Medallion excels in integrated facility services, redefining building maintenance with integrity and foresight.” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
23	Clean Team, INC	Exact match	Holland, OH, United StatesHQ recorded Oct 23, 2026	501-1,000	179 contacts →
	Exact match “Clean Team is the best commercial janitorial cleaning service in Indiana, New Jersey, New Mexico, Michigan, Ohio and Pennsylvania.” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
24	Grbs INC	Exact match	Grand Rapids, MI, United StatesHQ recorded Oct 23, 2026	1,001-5,000	176 contacts →
	Exact match “For 100 years as of 2015, GRBS Inc.has been recognized by our customers as a leading provider of contract cleaning professionals in our industry.” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase
25	GDI Services, INC	Exact match	Johnson City, NY, United StatesHQ recorded Oct 23, 2026	1,001-5,000	157 contacts →
	Exact match “Matrix is distinctive among its peers by bringing together only the best practices of the facility maintenance industry.” Recorded in the RevenueBase company graph · Oct 23, 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 “cleanroom cleaning & maintenance companies”. 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 3,004 cleanroom cleaning & maintenance companies based in the United States

See the full list, filter by size, metro and specialty, and access 4,834 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Cleanroom cleaning & maintenance companies based in the United States at a glance

As of Oct 23, 2026

14.1%Verified-email coverage

11.4Average contacts per company

11-50Median size (employees)

2.5%Largest-city concentration · New York

Oct 23, 2026Page data refreshed

Companies by employee count

1-10

1,323

11-50

1,009

51-200

420

201-500

134

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 3,004 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 the United States whose business descriptions match “cleanroom cleaning & maintenance companies” 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 4,834 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 October 23, 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.

Cleanroom cleaning & maintenance companies by metro

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 “cleanroom cleaning & maintenance companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many cleanroom cleaning & maintenance companies are there based in the United States?

RevenueBase identified 3,004 company matches for cleanroom cleaning & maintenance companies associated with the United States as of October 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?

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

Which city has the most cleanroom cleaning & maintenance companies?

New York leads with 75 company records, followed by Atlanta (47) and Houston (45).

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 4,834 professional contacts with verified work emails tracked across these 3,004 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 October 23, 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.