Company lists · Data refreshed September 2026

Top 25 Membrane manufacturers based in the United States

Name: Membrane manufacturers based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 412 companies tracked

RevenueBase identified 412 membrane manufacturers headquartered in the United States as of September 2026 and tracks 9,974 professional contacts across them, including 3,403 with verified work emails. Houston is the largest hub.

This list covers membrane manufacturers headquartered in the United States, 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.

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

412Companies

9,974Contacts tracked

3,403Verified emails

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The 25 largest membrane manufacturers based in the United States

Ranked by team size

Top 25 of 412 membrane manufacturers based in the United States, 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	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
4	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
5	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
6	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
7	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
8	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
9	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
10	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
11	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
12	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
13	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
14	Pureflow, INC	Indirect evidence	Graham, NC, United StatesHQ checked Sep 30, 2026	51-200	94 contacts →
	Indirect evidence “Why Pureflow?” Source: RevenueBase Database · checked Sep 30, 2026
15	Zwitterco	Partial evidence	Woburn, MA, United StatesHQ checked Sep 30, 2026	51-200	83 contacts →
	Partial evidence “ZwitterCo is the global leader in membrane solutions for challenging separations, helping industries treat complex wastewater, purify water for reuse, and maximize efficiency in…” Source: RevenueBase Database · checked Sep 30, 2026
16	Samco Technologies	Indirect evidence	Buffalo, NY, United StatesHQ checked Sep 30, 2026	51-200	82 contacts →
	Indirect evidence “At SAMCO Technologies, Inc, we provide cutting-edge water, wastewater, and process separation solutions for some of the world’s most demanding industries, including power…” Source: RevenueBase Database · checked Sep 30, 2026
17	JN White	Strong evidence	Perry, NY, United StatesHQ checked Sep 30, 2026	51-200	78 contacts →
	Strong evidence “JN White is the premier ISO and ITAR certified manufacturer of best-in-class Membrane Switches, Membrane Switch Assemblies, Complex User Interfaces, and Graphic Overlay products.” Source: RevenueBase Database · checked Sep 30, 2026
18	Davlyn Group	Partial evidence	Spring City, PA, United StatesHQ checked Sep 30, 2026	201-500	69 contacts →
	Partial evidence “Davlyn Group is a leading U.S-based manufacturer of technical textiles and composites for the industrial, commercial, and residential markets.” Source: RevenueBase Database · checked Sep 30, 2026
19	Inland Tarp & Liner ITL , LLC	Partial evidence	Moses Lake, WA, United StatesHQ checked Sep 30, 2026	201-500	67 contacts →
	Partial evidence “Over the past four decades, Inland Tarp & Liner (ITL™), LLC, has evolved from a West Coast hay tarp manufacturer and service company to emerge as one of the largest U.S.” Source: RevenueBase Database · checked Sep 30, 2026
20	Kuehne Chemical Company	Indirect evidence	Kearny, NJ, United StatesHQ checked Sep 30, 2026	51-200	66 contacts →
	Indirect evidence “Every day 30 million people benefit from Kuehne Company’s water treatment products.” Source: RevenueBase Database · checked Sep 30, 2026
21	Pencco, INC	Indirect evidence	Sealy, TX, United StatesHQ checked Sep 30, 2026	51-200	65 contacts →
	Indirect evidence “At Pencco, we are dedicated to performing at the highest level so our customers can do the same.” Source: RevenueBase Database · checked Sep 30, 2026
22	Polypore International	Partial evidence	Charlotte, NC, United StatesHQ checked Sep 30, 2026	1,001-5,000	64 contacts →
	Partial evidence “As a leading global high technology company specializing in microporous membranes, we bring advanced development and manufacturing know-how and unique problem-solving capabilities…” Source: RevenueBase Database · checked Sep 30, 2026
23	Complete Filtration Resources, INC	Strong evidence	Marshfield, WI, United StatesHQ checked Sep 30, 2026	11-50	62 contacts →
	Strong evidence “We design and manufacture a full line of components for our membrane filtration & wastewater systems.Together with our fabrication and installation partners around the world we…” Source: RevenueBase Database · checked Sep 30, 2026
24	Nanostone Water	Indirect evidence	Waltham, MA, United StatesHQ checked Sep 30, 2026	51-200	62 contacts →
	Indirect evidence “At Nanostone Water, we believe in economically solving the world's water needs.” Source: RevenueBase Database · checked Sep 30, 2026
25	Wigen Water Technologies	Indirect evidence	Minneapolis, MN, United StatesHQ checked Sep 30, 2026	51-200	62 contacts →
	Indirect evidence “Founded in 1965, Wigen Water Technologies® is a global leader in the production of custom water treatment systems, specializing in cost-effective and reliable solutions for…” 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 412 membrane manufacturers based in the United States

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Membrane manufacturers based in the United States at a glance

As of Sep 30, 2026

34.1%Verified-email coverage

24.2Average contacts per company

11-50Median size (employees)

3.2%Largest-city concentration · Houston

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

137

11-50

155

51-200

201-500

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 412 companies.

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.
What qualifies: Companies headquartered in the United States 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. Companies headquartered outside United States are excluded even when they keep an office there.
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, 3,403 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.

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 based in the United States?

RevenueBase identified 412 membrane manufacturers headquartered in the United States 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 city has the most membrane manufacturers?

Houston leads with 13 headquartered companies, followed by Charlotte (5) and Vista (5).

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 3,403 verified decision-maker contacts tracked across these 412 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.