Company lists · Data refreshed September 2026

Top 25 Membrane manufacturers worldwide

Name: Membrane manufacturers worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 2,823 companies tracked

RevenueBase identified 2,823 membrane manufacturers worldwide as of September 2026 and tracks 34,428 professional contacts across them, including 7,856 with verified work emails. India is the largest market and Ahmedabad the largest hub.

This list covers membrane manufacturers 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 30, 2026. Country and city lists for membrane manufacturers 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 30, 2026 86% judged on-target in blind review

2,823Companies

34,428Contacts tracked

7,856Verified emails

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The 25 largest membrane manufacturers worldwide

Ranked by team size

Top 25 of 2,823 membrane manufacturers worldwide, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to membrane manufacturers: 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	Chemtreat	Indirect evidence	Glen Allen, VA, United StatesHQ checked Sep 30, 2026	1,001-5,000	1,404 contacts →
	Indirect evidence “At ChemTreat, we understand that water is a vital resource for our planet.” Source: RevenueBase Database · checked Sep 30, 2026
2	Aquatech	Indirect evidence	Canonsburg, PA, United StatesHQ checked Sep 30, 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 30, 2026
3	Trojan Technologies	Indirect evidence	London, ON, CanadaHQ checked Sep 30, 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 30, 2026
4	Grupo Bauminas	Indirect evidence	Cataguazes, BrazilHQ checked Sep 30, 2026	1,001-5,000	650 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 30, 2026
5	Daramic, LLC	Indirect evidence	Charlotte, NC, United StatesHQ checked Sep 30, 2026	1,001-5,000	440 contacts →
	Indirect evidence “For over 90 years, Daramic, LLC has led the way in developing new and innovative technology for the lead battery market.” Source: RevenueBase Database · checked Sep 30, 2026
6	Parkson Corporation	Indirect evidence	Fort Lauderdale, FL, United StatesHQ checked Sep 30, 2026	51-200	317 contacts →
	Indirect evidence “Parkson Corporation is a supplier of innovative, cost effective solutions for potable water, process water, and industrial and municipal wastewater treatment.” Source: RevenueBase Database · checked Sep 30, 2026
7	SAATI	Indirect evidence	Appiano Gentile, ItalyHQ checked Sep 30, 2026	1,001-5,000	309 contacts →
	Indirect evidence “SAATI is a multinational corporation with its global headquarters in northern Italy.” Source: RevenueBase Database · checked Sep 30, 2026
8	Caplugs	Indirect evidence	Buffalo, NY, United StatesHQ checked Sep 30, 2026	501-1,000	292 contacts →
	Indirect evidence “Founded in 1948 in Buffalo, N.Y, Caplugs is the leader in custom molded components, masking solutions and product protection.” Source: RevenueBase Database · checked Sep 30, 2026
9	Amiad Water Systems LTD	Indirect evidence	Kibbutz Amiad, IsraelHQ checked Sep 30, 2026	501-1,000	259 contacts →
	Indirect 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 30, 2026
10	Usabluebook	Indirect evidence	Waukegan, IL, United StatesHQ checked Sep 30, 2026	5,001-10,000	241 contacts →
	Indirect evidence “Rely on USABlueBook for everything you need for water and wastewater operations and maintenance.” Source: RevenueBase Database · checked Sep 30, 2026
11	Esli Pollet Water Group	Indirect evidence	Antalya, TürkiyeHQ checked Sep 30, 2026	201-500	221 contacts →
	Indirect evidence “Esli PWG Ltd.” Source: RevenueBase Database · checked Sep 30, 2026
12	Graver Technologies, LLC	Indirect evidence	Glasgow, DE, United StatesHQ checked Sep 30, 2026	201-500	184 contacts →
	Indirect evidence “Graver Technologies, LLC serves the industrial filtration, separation and purification needs of companies around the globe.” Source: RevenueBase Database · checked Sep 30, 2026
13	BW Water	Indirect evidence	Singapore, United StatesHQ checked Sep 30, 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 30, 2026
14	Membrane Solutions	Partial evidence	Auburn, WA, United StatesHQ checked Sep 30, 2026	501-1,000	168 contacts →
	Partial evidence “Membrane Solutions, founded in 2006 in Seattle, USA, is a world-renowned supplier of membrane filtration products.” Source: RevenueBase Database · checked Sep 30, 2026
15	Viaflex	Partial evidence	Sioux Falls, SD, United StatesHQ checked Sep 30, 2026	201-500	159 contacts →
	Partial evidence “Viaflex, the leading manufacturer of innovative polymer film and sheeting solutions for agricultural, construction, energy, geomembrane, industrial, telecom, and installation…” Source: RevenueBase Database · checked Sep 30, 2026
16	Advanced Microdevices Pvt. Ltd. India	Partial evidence	Ambala Cantt, IndiaHQ checked Sep 30, 2026	501-1,000	152 contacts →
	Partial evidence “Advanced Microdevices (mdi) is a leader in innovative membrane technologies.” Source: RevenueBase Database · checked Sep 30, 2026
17	Cooley Group	Indirect evidence	Pawtucket, RI, United StatesHQ checked Sep 30, 2026	201-500	149 contacts →
	Indirect evidence “Cooley Group is a global leader in the design, development, and manufacturing of sustainable, high-performance industrial geomembranes and coated textiles.” Source: RevenueBase Database · checked Sep 30, 2026
18	Nordic Water Products	Indirect evidence	Mölndal, SwedenHQ checked Sep 30, 2026	51-200	144 contacts →
	Indirect evidence “Nordic Water is an international company which provides equipment and systems for water and wastewater treatment to process industries and public utilities.” Source: RevenueBase Database · checked Sep 30, 2026
19	Clack Corporation	Indirect evidence	Windsor, WI, United StatesHQ checked Sep 30, 2026	201-500	142 contacts →
	Indirect evidence “Established in 1944, Clack Corporation has been providing quality industrial water treatment products, commercial water treatment equipment and molded custom plastic containers.” Source: RevenueBase Database · checked Sep 30, 2026
20	Hasa Pool INC	Indirect evidence	Saugus, CA, United StatesHQ checked Sep 30, 2026	201-500	140 contacts →
	Indirect evidence “HASA, Inc.” Source: RevenueBase Database · checked Sep 30, 2026
21	NX Filtration	Strong evidence	Hengelo, NetherlandsHQ checked Sep 30, 2026	51-200	138 contacts →
	Strong evidence “NX Filtration is a fast-growing company that develops and manufactures hollow fiber membranes and modules for use in ultrafiltration and hollow fiber nanofiltration applications.” Source: RevenueBase Database · checked Sep 30, 2026
22	Adiquímica	Indirect evidence	Barcelona, SpainHQ checked Sep 30, 2026	51-200	137 contacts →
	Indirect evidence “Founded in 1983, Adiquímica is a pioneer company in water treatments with a great trajectory.” Source: RevenueBase Database · checked Sep 30, 2026
23	Aqua Filteri ZA Vodu	Indirect evidence	Pazin, CroatiaHQ checked Sep 30, 2026	n/a	129 contacts →
	Indirect evidence “Manufacturing of professional equipment and devices for water treatment.” Source: RevenueBase Database · checked Sep 30, 2026
24	Barclay Water Management, INC	Indirect evidence	Newton, MA, United StatesHQ checked Sep 30, 2026	51-200	119 contacts →
	Indirect evidence “Established in 1932 and headquartered in Newton, Massachusetts, Barclay Water Management, Inc.” Source: RevenueBase Database · checked Sep 30, 2026
25	Marienberg	Indirect evidence	Maipú, ChileHQ checked Sep 30, 2026	201-500	115 contacts →
	Indirect evidence “Somos una empresa líder en la fabricación de mallas y productos de embalajes.” Source: RevenueBase Database · checked Sep 30, 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: membrane manufacturers. 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 membrane manufacturers.
Partial evidence: Its own public description names part of membrane manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name membrane manufacturers. 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 2,823 membrane manufacturers worldwide

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Membrane manufacturers worldwide at a glance

As of Sep 30, 2026

22.8%Verified-email coverage

12.2Average contacts per company

11-50Median size (employees)

1.7%Largest-city concentration · Ahmedabad

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

870

11-50

1,042

51-200

605

201-500

176

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 membrane manufacturers, 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 membrane manufacturers are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “membrane manufacturers”. 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 membrane manufacturers), 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 membrane manufacturers, 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, 7,856 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 30, 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.

Membrane manufacturers by location

13 lists · largest first

Every Membrane manufacturers 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 membrane manufacturers, 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 membrane manufacturers are there worldwide?

RevenueBase identified 2,823 membrane manufacturers 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?

Chemtreat, headquartered in Glen Allen, tops this list with the largest team on record.

Which country has the most membrane manufacturers?

India leads with 426 companies, followed by the United States (412) and Germany (118). Every membrane manufacturers list by country and city is linked on this page.

Which city has the most membrane manufacturers?

Ahmedabad leads with 47 headquartered companies, followed by Chennai (35) and Mumbai (29).

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 7,856 verified decision-maker contacts tracked across these 2,823 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 30, 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.