Company lists · Data refreshed November 2026

Top 25 Process water filtration companies worldwide

Name: Process water filtration companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 11,421 companies tracked

RevenueBase identified 11,421 company matches for process water filtration companies worldwide as of November 2026 and tracks 159,270 professional contacts across them, including 39,947 with verified work emails. The United States is the largest market and Pune the largest hub.

This list covers company matches for process water filtration companies 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 process water filtration companies 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

11,421Companies

159,270Contacts tracked

39,947Verified emails

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The 25 largest process water filtration companies worldwide

Ranked by team size

Top 25 of 11,421 company matches for process water filtration companies 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	Mann Hummel	Exact match	Ludwigsburg, GermanyHQ recorded Nov 6, 2026	10001+	8,339 contacts →
	Exact match “We are a global leader in filtration technology.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Donaldson	Exact match	Bloomington, MN, United StatesHQ recorded Nov 6, 2026	10001+	7,051 contacts →
	Exact match “Donaldson Company helps solve some of the world's most complex filtration and contamination control challenges.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Pall Corporation	Exact match	Port Washington, NY, United StatesHQ recorded Nov 6, 2026	5,001-10,000	4,765 contacts →
	Exact match “Our global associates are unified by a singular drive: to take on our customers’ biggest challenges.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Kent RO Systems LTD	Exact match	Noida, IndiaHQ recorded Nov 6, 2026	1,001-5,000	3,424 contacts →
	Exact match “We are a healthcare products company with the mission to make world a healthier place.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Fleetguard Filters Pvt. LTD	Exact match	Pune, IndiaHQ recorded Nov 6, 2026	1,001-5,000	1,815 contacts →
	Exact match “Fleetguard Filters Private Limited (FFPL) was incorporated in the year 1987 in technical collaboration with Cummins Filtration U.S.A.( Now Atmus Filtration Technologies, U.S.A.)…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Atmus Filtration Technologies	Exact match	Nashville, TN, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,258 contacts →
	Exact match “Atmus designs, manufactures and sells filtration solutions that create a better future by protecting what is important.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Volvo Eicher Commerical Vehical Limited	Exact match	Dhar, IndiaHQ recorded Nov 6, 2026	n/a	1,235 contacts →
	Exact match “Volvo Eicher Commerical Vehical Limited Service Provider of waste water recycling systems, drinking water plant & industrial water treatment in Indore, Madhya Pradesh.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Camfil	Exact match	Stockholm, SwedenHQ recorded Nov 6, 2026	5,001-10,000	1,125 contacts →
	Exact match “For more than half a century, Camfil has been helping people breathe cleaner air.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Aquatech	Exact match	Canonsburg, PA, United StatesHQ recorded Nov 6, 2026	501-1,000	1,006 contacts →
	Exact match “Aquatech enables the world's most recognized companies to solve complex challenges in water reuse, desalination, minimal and zero liquid discharge, and critical minerals…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Freudenberg Filtration Technologies	Exact match	Weinheim, GermanyHQ recorded Nov 6, 2026	1,001-5,000	901 contacts →
	Exact match “Protecting people and the environment, conserving resources and optimizing industrial processes – those are the things that drive us and make us proud at Freudenberg Filtration…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Gradiant	Exact match	Woburn, MA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	898 contacts →
	Exact match “Gradiant is a Different Kind of Water Company.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	AAF International American AIR Filter	Exact match	Louisville, IN, United StatesHQ recorded Nov 6, 2026	1,001-5,000	867 contacts →
	Exact match “AAF International clean air products and systems offer the most comprehensive clean air solutions available in the world.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Hengst Filtration	Exact match	Münster, GermanyHQ recorded Nov 6, 2026	1,001-5,000	835 contacts →
	Exact match “Mobility, Health, Technology, Environmental Protection & Sustainability: We work every day on the major issues of our time.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Nederman	Exact match	Helsingborg, SwedenHQ recorded Nov 6, 2026	1,001-5,000	820 contacts →
	Exact match “The Clean Air Company Nederman is one of the world's leading companies supplying products and services in the environmental technology sector focusing on industrial air filtration.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Trojan Technologies	Exact match	London, ON, CanadaHQ recorded Nov 6, 2026	501-1,000	751 contacts →
	Exact match “Our Vision To continuously advance water treatment, ensuring everyone has access to clean water, globally.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Ceco Environmental Corporation	Exact match	Addison, TX, United StatesHQ recorded Nov 6, 2026	1,001-5,000	722 contacts →
	Exact match “CECO Environmental is a leading environmentally focused, diversified industrial company whose solutions protect people, the environment, and industrial equipment across the globe…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Grupo Bauminas	Exact match	Cataguazes, BrazilHQ recorded Nov 6, 2026	1,001-5,000	703 contacts →
	Exact match “Sobre a BAUMINAS Fundada há mais de 60 anos, a BAUMINAS é uma empresa orgulhosamente nacional, com ampla experiência na fabricação de produtos para o tratamento de águas e tem…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Culligan France	Exact match	Versailles, FranceHQ recorded Nov 6, 2026	1,001-5,000	700 contacts →
	Exact match “Spécialiste du traitement de l’eau depuis plus de 80 ans, Culligan apporte chaque jour une eau de qualité aux particuliers, aux entreprises et aux collectivités.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	BWT France	Exact match	Saint - Denis, FranceHQ recorded Nov 6, 2026	501-1,000	594 contacts →
	Exact match “BWT France is one of the largest subsidiaries of Austrian group Best Water Technology ( BWT), the European leader in water treatment.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Filtration Group	Exact match	Oakbrook Terrace, IL, United StatesHQ recorded Nov 6, 2026	5,001-10,000	592 contacts →
	Exact match “Filtration Group is a global market-leading provider of filtration consumables that are designed to drive innovation and deliver solutions across a broad spectrum of applications…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Westech Engineering	Exact match	Salt Lake City, United StatesHQ recorded Nov 6, 2026	501-1,000	588 contacts →
	Exact match “WesTech Engineering, LLC designs, engineers, and manufactures water and wastewater treatment process equipment for mineral, industrial, and municipal applications worldwide.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Eden Springs	Exact match	Barcelona, SpainHQ recorded Nov 6, 2026	1,001-5,000	517 contacts →
	Exact match “Eden, a proud part of the Culligan family, provides instant access to cleaner, safer, and better-tasting water through our unparalleled expertise in sustainability, science, and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Culligan Italiana S.P.A	Exact match	Bologna, ItalyHQ recorded Nov 6, 2026	201-500	499 contacts →
	Exact match “Culligan Italiana è in grado di offrire la soluzione ideale per ogni tipologia di trattamento acqua: piccoli impianti ad uso domestico, erogatori d'acqua per uffici e ristoranti…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Planeta Azul	Exact match	Santo Domingo, Dominican RepublicHQ recorded Nov 6, 2026	501-1,000	495 contacts →
	Exact match “Con más de 35 años de operaciones, Planeta Azul S.A.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Jacobi Group	Exact match	Kalmar, SwedenHQ recorded Nov 6, 2026	1,001-5,000	487 contacts →
	Exact match “Manufacturer and supplier of high quality activated carbons, ion exchange resins and mobile filter solutions.” 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 “process water filtration 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 11,421 process water filtration companies worldwide

See the full list, filter by size, metro and specialty, and access 39,947 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Process water filtration companies worldwide at a glance

As of Nov 6, 2026

25.1%Verified-email coverage

13.9Average contacts per company

11-50Median size (employees)

0.9%Largest-city concentration · Pune

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

4,657

11-50

4,115

51-200

1,690

201-500

450

501-1,000

138

1,001-5,000

103

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 process water filtration companies are linked below.
What qualifies: Company records worldwide whose business descriptions match “process water filtration 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. 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 39,947 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.

Process water filtration companies by location

44 lists · largest first

Every Process water filtration 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 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 “process water filtration companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many process water filtration companies are there worldwide?

RevenueBase identified 11,421 company matches for process water filtration companies 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?

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

Which country has the most process water filtration companies?

The United States leads with 2,352 companies, followed by India (1,279) and China (547). Every process water filtration companies list by country and city is linked on this page.

Which city has the most process water filtration companies?

Pune leads with 108 company records, followed by Ahmedabad (104) and Mumbai (80).

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 39,947 professional contacts with verified work emails tracked across these 11,421 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.