Company lists · Data refreshed September 2026

Top 25 Ultrafiltration system companies worldwide

Name: Ultrafiltration system companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 3,442 companies tracked

RevenueBase identified 3,442 ultrafiltration system companies worldwide as of September 2026 and tracks 47,093 professional contacts across them, including 11,046 with verified work emails. The United States is the largest market and Ahmedabad the largest hub.

This list covers ultrafiltration system 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 22, 2026. Country and city lists for ultrafiltration system 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 22, 2026 86% judged on-target in blind review

3,442Companies

47,093Contacts tracked

11,046Verified emails

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The 25 largest ultrafiltration system companies worldwide

Ranked by team size

Top 25 of 3,442 ultrafiltration system companies worldwide, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to ultrafiltration system 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	Pall Corporation	Indirect evidence	Port Washington, NY, United StatesHQ checked Sep 22, 2026	5,001-10,000	4,495 contacts →
	Indirect evidence “Our global associates are unified by a singular drive: to take on our customers’ biggest challenges.” Source: RevenueBase Database · checked Sep 22, 2026
2	VA Tech Wabag LTD	Indirect evidence	Wabag House, IndiaHQ checked Sep 22, 2026	1,001-5,000	2,375 contacts →
	Indirect evidence “WABAG, a global leader in the water industry, is backed by rich experience spanning over 100 years.” Source: RevenueBase Database · checked Sep 22, 2026
3	Aquatech	Indirect evidence	Canonsburg, PA, United StatesHQ checked Sep 22, 2026	501-1,000	903 contacts →
	Indirect evidence “Aquatech enables the world's most recognized companies to solve complex challenges in water reuse, desalination, minimal and zero liquid discharge, and critical minerals…” Source: RevenueBase Database · checked Sep 22, 2026
4	Trojan Technologies	Indirect evidence	London, ON, CanadaHQ checked Sep 22, 2026	501-1,000	716 contacts →
	Indirect evidence “Our Vision To continuously advance water treatment, ensuring everyone has access to clean water, globally.” Source: RevenueBase Database · checked Sep 22, 2026
5	BWT France	Indirect evidence	Saint - Denis, FranceHQ checked Sep 22, 2026	501-1,000	567 contacts →
	Indirect evidence “BWT France is one of the largest subsidiaries of Austrian group Best Water Technology ( BWT), the European leader in water treatment.” Source: RevenueBase Database · checked Sep 22, 2026
6	Westech Engineering	Indirect evidence	Salt Lake City, UT, United StatesHQ checked Sep 22, 2026	501-1,000	554 contacts →
	Indirect evidence “WesTech Engineering, LLC designs, engineers, and manufactures water and wastewater treatment process equipment for mineral, industrial, and municipal applications worldwide.” Source: RevenueBase Database · checked Sep 22, 2026
7	Culligan Italiana S.P.A	Indirect evidence	Bologna, ItalyHQ checked Sep 22, 2026	201-500	489 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 22, 2026
8	Meissner	Partial evidence	Camarillo, CA, United StatesHQ checked Sep 22, 2026	501-1,000	373 contacts →
	Partial evidence “Meissner manufactures advanced microfiltration and single-use systems.” Source: RevenueBase Database · checked Sep 22, 2026
9	Meco Mechanical Equipment Company, INC	Indirect evidence	Mandeville, LA, JamaicaHQ checked Sep 22, 2026	201-500	290 contacts →
	Indirect evidence “For over 96 years, MECO has been a world leader in designing and constructing engineered solutions for water purification.” Source: RevenueBase Database · checked Sep 22, 2026
10	WTE Infra Projects Pvt. LTD	Indirect evidence	Pune, IndiaHQ checked Sep 22, 2026	501-1,000	287 contacts →
	Indirect evidence “WTE is a globally recognised manufacturer & exporter of innovative Water & Wastewater Treatment Plants.” Source: RevenueBase Database · checked Sep 22, 2026
11	Grupo Fast	Indirect evidence	Capinzal, BrazilHQ checked Sep 22, 2026	201-500	275 contacts →
	Indirect evidence “Somos uma das principais indústrias do segmento metalmecânico, com sede em Santa Catarina e atuação internacional.” Source: RevenueBase Database · checked Sep 22, 2026
12	Culligan By Waterco	Partial evidence	Lombard, IL, United StatesHQ checked Sep 22, 2026	501-1,000	265 contacts →
	Partial evidence “Culligan has over 80 years of experience in the design and distribution of water treatment systems for residential, commercial and industrial applications.” Source: RevenueBase Database · checked Sep 22, 2026
13	Amiad Water Systems LTD	Partial evidence	Kibbutz Amiad, IsraelHQ checked Sep 22, 2026	501-1,000	259 contacts →
	Partial evidence “For 6 decades, Amiad Water Systems has devoted its passion to developing technologically advanced water filtration systems for the irrigation and industrial segments.” Source: RevenueBase Database · checked Sep 22, 2026
14	HUBER	Indirect evidence	Berching, United Arab EmiratesHQ checked Sep 22, 2026	1,001-5,000	254 contacts →
	Indirect evidence “HUBER is a globally operating company with over employees, of which around work at the headquarters in Berching (Germany).” Source: RevenueBase Database · checked Sep 22, 2026
15	Xylem India	Indirect evidence	Bengaluru, IndiaHQ checked Sep 22, 2026	10001+	253 contacts →
	Indirect evidence “Xylem is a leading water technology company committed to "solving water" by creating innovative and smart technology solutions to meet the world's water, wastewater and energy…” Source: RevenueBase Database · checked Sep 22, 2026
16	Micron	Indirect evidence	Mouscron, BelgiumHQ checked Sep 22, 2026	n/a	246 contacts →
	Indirect evidence “Micron, part of the Pollet Water Group (PWG), offers domestic and industrial water treatment solutions throughout Europe.” Source: RevenueBase Database · checked Sep 22, 2026
17	Esli Pollet Water Group	Indirect evidence	Antalya, TürkiyeHQ checked Sep 22, 2026	201-500	221 contacts →
	Indirect evidence “Esli PWG Ltd.” Source: RevenueBase Database · checked Sep 22, 2026
18	Aqua-Aerobic Systems, INC	Indirect evidence	Loves Park, IL, United StatesHQ checked Sep 22, 2026	51-200	207 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026
19	MAT Filtration Technologies	Partial evidence	Güzelbahçe, TürkiyeHQ checked Sep 22, 2026	501-1,000	191 contacts →
	Partial evidence “MAT FILTRATION TECHNOLOGIES is a design and manufacturing leader of specialty water treatment equipment for industrial & municipal applications, Recirculating Aquaculture Systems…” Source: RevenueBase Database · checked Sep 22, 2026
20	Newterra	Indirect evidence	Coraopolis, PA, United StatesHQ checked Sep 22, 2026	201-500	185 contacts →
	Indirect evidence “Newterra designs, engineers, manufactures, and services environmental, water and wastewater treatment solutions that assure great performance, superb reliability, and the highest…” Source: RevenueBase Database · checked Sep 22, 2026
21	BW Water	Indirect evidence	Singapore, United StatesHQ checked Sep 22, 2026	201-500	179 contacts →
	Indirect evidence “Together with our customers, BW Water, now part of De Nora Water Technologies, is committed to addressing the world's most critical water challenges.” Source: RevenueBase Database · checked Sep 22, 2026
22	Membrane Solutions	Indirect evidence	Auburn, WA, United StatesHQ checked Sep 22, 2026	501-1,000	168 contacts →
	Indirect evidence “Membrane Solutions, founded in 2006 in Seattle, USA, is a world-renowned supplier of membrane filtration products.” Source: RevenueBase Database · checked Sep 22, 2026
23	Watercare Innovations	Indirect evidence	Randfontein, South AfricaHQ checked Sep 22, 2026	201-500	165 contacts →
	Indirect evidence “Watercare Innovations is a water purification supplier, delivering tailor-made solutions in the fields of water treatment chemicals, and engineered plants such as potable and…” Source: RevenueBase Database · checked Sep 22, 2026
24	Ecosoft	Indirect evidence	Irpin, UkraineHQ checked Sep 22, 2026	201-500	153 contacts →
	Indirect evidence “Welcome to Ecosoft – a water engineering company.” Source: RevenueBase Database · checked Sep 22, 2026
25	Aqseptence Group	Indirect evidence	Aarbergen, GermanyHQ checked Sep 22, 2026	1,001-5,000	153 contacts →
	Indirect evidence “Water is becoming one of the defining challenges of our century.” Source: RevenueBase Database · checked Sep 22, 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: ultrafiltration system 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 ultrafiltration system companies.
Partial evidence: Its own public description names part of ultrafiltration system companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name ultrafiltration system 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 3,442 ultrafiltration system companies worldwide

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Ultrafiltration system companies worldwide at a glance

As of Sep 22, 2026

23.5%Verified-email coverage

13.7Average contacts per company

11-50Median size (employees)

1.6%Largest-city concentration · Ahmedabad

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

1,256

11-50

1,291

51-200

605

201-500

162

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 ultrafiltration system 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: Every country. Country and city lists for ultrafiltration system companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “ultrafiltration system 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 ultrafiltration system 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 ultrafiltration system 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, 11,046 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 22, 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.

Ultrafiltration system companies by location

16 lists · largest first

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

Countries

Cities

Ultrafiltration system companies based in Mumbai, India30

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 ultrafiltration system 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 ultrafiltration system companies are there worldwide?

RevenueBase identified 3,442 ultrafiltration system 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?

Pall Corporation, headquartered in Port Washington, tops this list with the largest team on record.

Which country has the most ultrafiltration system companies?

The United States leads with 553 companies, followed by India (498) and Italy (164). Every ultrafiltration system companies list by country and city is linked on this page.

Which city has the most ultrafiltration system companies?

Ahmedabad leads with 56 headquartered companies, followed by Pune (42) and Chennai (36).

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 11,046 verified decision-maker contacts tracked across these 3,442 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 22, 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.