Company lists · Data refreshed September 2026

Top 25 Cleanroom service providers worldwide

Name: Cleanroom service providers worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 2,799 companies tracked

RevenueBase identified 2,799 cleanroom service providers worldwide as of September 2026 and tracks 33,744 professional contacts across them, including 9,772 with verified work emails. The United States is the largest market and Hyderabad the largest hub.

This list covers cleanroom service providers 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 cleanroom service providers 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

2,799Companies

33,744Contacts tracked

9,772Verified emails

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The 25 largest cleanroom service providers worldwide

Ranked by team size

Top 25 of 2,799 cleanroom service providers worldwide, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to cleanroom service providers: 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	SKAN	Strong evidence	Allschwil, SwitzerlandHQ checked Sep 19, 2026	1,001-5,000	966 contacts →
	Strong evidence “SKAN is a Swiss company and a global market and technological leader for isolators, cleanroom devices, and decontamination processes for the aseptic production of…” Source: RevenueBase Database · checked Sep 19, 2026
2	AAF International American AIR Filter	Indirect evidence	Louisville, KY, United StatesHQ checked Sep 19, 2026	1,001-5,000	806 contacts →
	Indirect evidence “AAF International clean air products and systems offer the most comprehensive clean air solutions available in the world.” Source: RevenueBase Database · checked Sep 19, 2026
3	Kropman	Indirect evidence	Nijmegen, NetherlandsHQ checked Sep 19, 2026	501-1,000	623 contacts →
	Indirect evidence “Kropman ontwerpt, bouwt en onderhoudt en beheert gebouwgebonden installaties.” Source: RevenueBase Database · checked Sep 19, 2026
4	Therma	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 19, 2026	1,001-5,000	482 contacts →
	Indirect evidence “Therma is part of Legence, a Blackstone portfolio company, specially created to be an Energy Transition Accelerator™.” Source: RevenueBase Database · checked Sep 19, 2026
5	Ihss Decontamination & Sterile Service Solutions	Indirect evidence	London & South East, United KingdomHQ checked Sep 19, 2026	201-500	403 contacts →
	Indirect evidence “IHSS is committed to supporting and partnering our healthcare customers to provide a comprehensive range of tailored decontamination and sterilisation service solutions.” Source: RevenueBase Database · checked Sep 19, 2026
6	Avant Garde Cleanroom & Engg. Solutions Pvt. LTD	Indirect evidence	New Delhi, IndiaHQ checked Sep 19, 2026	501-1,000	306 contacts →
	Indirect evidence “Designing and building clean indoor climates for critical manufacturing industries like Pharmaceutical, Food, Automotive, Electronics, and others, ACES has innovated its way to…” Source: RevenueBase Database · checked Sep 19, 2026
7	Integrated Cleanroom Technologies Limited	Indirect evidence	Hyderabad, IndiaHQ checked Sep 19, 2026	501-1,000	281 contacts →
	Indirect evidence “Largest Company in India for Clean Rooms on Turnkey Basis catering to requirements of Pharmaceuticals, Semionductor, Food & Beverage and Research Laboratories.” Source: RevenueBase Database · checked Sep 19, 2026
8	Controlled Contamination Services	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 19, 2026	1,001-5,000	253 contacts →
	Indirect evidence “Controlled Contamination Services is the leading provider of enterprise solutions for the pharmaceutical, biotech, medical device, electronic, data center, semiconductor…” Source: RevenueBase Database · checked Sep 19, 2026
9	Valtria	Strong evidence	Madrid, SpainHQ checked Sep 19, 2026	201-500	249 contacts →
	Strong evidence “Valtria is a project which began as a meeting point between engineers and managers with extensive experience in the design and installation of cleanrooms and controlled…” Source: RevenueBase Database · checked Sep 19, 2026
10	Mott Corporation	Indirect evidence	Plainville, CT, United StatesHQ checked Sep 19, 2026	501-1,000	232 contacts →
	Indirect evidence “About Mott We work with the world's top companies to establish new standards of 'normal' in Medicine, Computing Power, Sustainable Energy, & Space Exploration.” Source: RevenueBase Database · checked Sep 19, 2026
11	Flanders Corporation	Indirect evidence	Washington, NC, United StatesHQ checked Sep 19, 2026	1,001-5,000	227 contacts →
	Indirect evidence “Flanders is a leading air filtration products manufacturer.” Source: RevenueBase Database · checked Sep 19, 2026
12	Exyte Central Europe Gmbh	Indirect evidence	Beveren, BelgiumHQ checked Sep 19, 2026	501-1,000	224 contacts →
	Indirect evidence “The manufacturing processes of our clients are subject to high standards and require our expertise in controlled and regulated environments.” Source: RevenueBase Database · checked Sep 19, 2026
13	Azzur Group	Strong evidence	Burlington, MA, United StatesHQ checked Sep 19, 2026	51-200	224 contacts →
	Strong evidence “Visit chrysalisgxp.com for GMP-ready cleanrooms and services.” Source: RevenueBase Database · checked Sep 19, 2026
14	Klimaoprema D.O.O	Strong evidence	Samobor, CroatiaHQ checked Sep 19, 2026	501-1,000	212 contacts →
	Strong evidence “Klimaoprema is an experienced and certified manufacturer of high-quality HVAC equipment and CLEANROOM technology as well as an engineering company providing turnkey projects in…” Source: RevenueBase Database · checked Sep 19, 2026
15	Klenzaids	Indirect evidence	Mumbai, IndiaHQ checked Sep 19, 2026	201-500	201 contacts →
	Indirect evidence “Klenzaids manufactures benchmark Aseptic, Bioclean and Containment equipment which are elemental to plants established by the pharmaceutical, biological, life science, healthcare…” Source: RevenueBase Database · checked Sep 19, 2026
16	Pegasus	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 19, 2026	1,001-5,000	191 contacts →
	Indirect evidence “Pegasus has been protecting critical environments since 1969.” Source: RevenueBase Database · checked Sep 19, 2026
17	AES Cleanroom Technology	Strong evidence	Montgomeryville, PA, United StatesHQ checked Sep 19, 2026	201-500	189 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
18	Brilliant General Maintenance, INC	Strong evidence	San Jose, CA, United StatesHQ checked Sep 19, 2026	1,001-5,000	189 contacts →
	Strong evidence “Brilliant General Maintenance, Inc excels in delivering top-tier janitorial services for commercial spaces, including cleanrooms, office buildings, manufacturing facilities, and…” Source: RevenueBase Database · checked Sep 19, 2026
19	Janitronics Building Services	Indirect evidence	Waltham, MA, United StatesHQ checked Sep 19, 2026	1,001-5,000	179 contacts →
	Indirect evidence “Since 1977, Janitronics Building Services has provided customized cleaning and janitorial services to New England’s most prestigious companies.” Source: RevenueBase Database · checked Sep 19, 2026
20	Ecolab Life Sciences	Indirect evidence	St Paul, MN, United StatesHQ checked Sep 19, 2026	201-500	163 contacts →
	Indirect evidence “Ecolab Life Sciences offers unparalleled cleaning and advanced contamination control expertise to pharmaceutical and personal care manufacturers across the globe.” Source: RevenueBase Database · checked Sep 19, 2026
21	Airplan	Strong evidence	Sant Fruitós De Bages, MexicoHQ checked Sep 19, 2026	51-200	163 contacts →
	Strong evidence “TURNKEY SOLUTIONS FOR CLEANROOM FACILITIES AND PROCESS LINES AIRPLAN is a modular cleanroom and process solutions integrator.” Source: RevenueBase Database · checked Sep 19, 2026
22	Micronclean	Indirect evidence	Skegness, United KingdomHQ checked Sep 19, 2026	201-500	160 contacts →
	Indirect evidence “With a heritage stretching back over three generations Micronclean have grown into one of the largest independent family run laundries in the UK.” Source: RevenueBase Database · checked Sep 19, 2026
23	Camfil France	Indirect evidence	Colombes, FranceHQ checked Sep 19, 2026	201-500	148 contacts →
	Indirect evidence “Camfil France fait partie du groupe Camfil, leader mondial des solutions de filtration de l'air.” Source: RevenueBase Database · checked Sep 19, 2026
24	Afpro Filters	Indirect evidence	Alkmaar, NetherlandsHQ checked Sep 19, 2026	201-500	147 contacts →
	Indirect evidence “At AFPRO, we are driven by a mission to make the world safer, healthier, and more productive.” Source: RevenueBase Database · checked Sep 19, 2026
25	Komico USA	Indirect evidence	Austin, TX, United StatesHQ checked Sep 19, 2026	201-500	145 contacts →
	Indirect evidence “KoMiCo, a leading company of precision cleaning and special coating in semiconductor industry, was founded May 2007.” 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: cleanroom service providers. 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 cleanroom service providers.
Partial evidence: Its own public description names part of cleanroom service providers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cleanroom service providers. 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 2,799 cleanroom service providers worldwide

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Cleanroom service providers worldwide at a glance

As of Sep 19, 2026

29.0%Verified-email coverage

12.1Average contacts per company

11-50Median size (employees)

1.1%Largest-city concentration · Hyderabad

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

949

11-50

1,042

51-200

523

201-500

169

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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 cleanroom service providers, 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: Every country. Country and city lists for cleanroom service providers are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “cleanroom service providers”. 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 cleanroom service providers), 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 cleanroom service providers, 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, 9,772 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.

Cleanroom service providers by location

19 lists · largest first

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

Countries

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 cleanroom service providers, 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 cleanroom service providers are there worldwide?

RevenueBase identified 2,799 cleanroom service providers 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?

SKAN, headquartered in Allschwil, tops this list with the largest team on record.

Which country has the most cleanroom service providers?

The United States leads with 484 companies, followed by India (321) and Germany (173). Every cleanroom service providers list by country and city is linked on this page.

Which city has the most cleanroom service providers?

Hyderabad leads with 31 headquartered companies, followed by Singapore (28) and Pune (26).

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 9,772 verified decision-maker contacts tracked across these 2,799 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.