Company lists · Data refreshed September 2026

Top 25 Membrane separation manufacturers based in the United States

Name: Membrane separation 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 263 companies tracked

RevenueBase identified 263 membrane separation manufacturers headquartered in the United States as of September 2026 and tracks 10,028 professional contacts across them, including 3,752 with verified work emails. Houston is the largest hub.

This list covers membrane separation 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

263Companies

10,028Contacts tracked

3,752Verified emails

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The 25 largest membrane separation manufacturers based in the United States

Ranked by team size

Top 25 of 263 membrane separation 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 separation 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	Pall Corporation	Indirect evidence	Port Washington, NY, United StatesHQ checked Sep 30, 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 30, 2026
2	Meissner	Partial evidence	Camarillo, CA, United StatesHQ checked Sep 30, 2026	501-1,000	373 contacts →
	Partial evidence “Meissner manufactures advanced microfiltration and single-use systems.” Source: RevenueBase Database · checked Sep 30, 2026
3	Mott Corporation	Indirect evidence	Plainville, CT, United StatesHQ checked Sep 30, 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 30, 2026
4	Graver Technologies, LLC	Partial evidence	Glasgow, DE, United StatesHQ checked Sep 30, 2026	201-500	184 contacts →
	Partial evidence “Graver Technologies, LLC serves the industrial filtration, separation and purification needs of companies around the globe.” Source: RevenueBase Database · checked Sep 30, 2026
5	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
6	Komline	Partial evidence	Peapack, NJ, United StatesHQ checked Sep 30, 2026	501-1,000	113 contacts →
	Partial evidence “Komline is a global leader in advanced Separation Technologies, delivering innovative equipment that keeps industries running and communities thriving.” Source: RevenueBase Database · checked Sep 30, 2026
7	Clarcor	Indirect evidence	Cleveland, OH, United StatesHQ checked Sep 30, 2026	10001+	110 contacts →
	Indirect evidence “No future updates will be made to this page.” Source: RevenueBase Database · checked Sep 30, 2026
8	KX Technologies	Indirect evidence	West Haven, CT, United StatesHQ checked Sep 30, 2026	51-200	102 contacts →
	Indirect evidence “KX Technologies is your Global Filtration Partner.” Source: RevenueBase Database · checked Sep 30, 2026
9	Zwitterco	Strong evidence	Woburn, MA, United StatesHQ checked Sep 30, 2026	51-200	83 contacts →
	Strong 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
10	Samco Technologies	Partial evidence	Buffalo, NY, United StatesHQ checked Sep 30, 2026	51-200	82 contacts →
	Partial 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
11	PSB Industries	Indirect evidence	Erie, PA, United StatesHQ checked Sep 30, 2026	51-200	65 contacts →
	Indirect evidence “PSB Industries Inc, General Air Division, specializes in the Design and Fabrication of compressed air, gas, and liquid dehydration and purification systems.” Source: RevenueBase Database · checked Sep 30, 2026
12	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
13	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
14	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
15	AWC American Water Chemicals	Partial evidence	Plant City, FL, United StatesHQ checked Sep 30, 2026	51-200	61 contacts →
	Partial evidence “American Water Chemicals® (AWC) was created in 1993 by a group of membrane desalination experts in response to the demand for more reliable water treatment chemicals and…” Source: RevenueBase Database · checked Sep 30, 2026
16	QUA	Strong evidence	Canonsburg, PA, United StatesHQ checked Sep 30, 2026	51-200	61 contacts →
	Strong evidence “QUA®, with our headquarters in the USA, develops, manufactures and markets advanced membrane products for water, waste water and water reuse applications to leading OEM's…” Source: RevenueBase Database · checked Sep 30, 2026
17	Rosedale Products, INC	Indirect evidence	Ann Arbor, MI, United StatesHQ checked Sep 30, 2026	51-200	54 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026
18	FTC Filtration Technology Corporation	Indirect evidence	Houston, TX, United StatesHQ checked Sep 30, 2026	51-200	51 contacts →
	Indirect evidence “Since 1987, Filtration Technology Corporation® (FTC) has built a reputation for developing and delivering innovative products at the forefront of filtration technology.” Source: RevenueBase Database · checked Sep 30, 2026
19	Keltec Technolab	Indirect evidence	Twinsburg, OH, United StatesHQ checked Sep 30, 2026	51-200	50 contacts →
	Indirect evidence “KELTEC Technolab specializes in designing, developing, and producing an extensive selection of filtration solutions for compressed air and gas in a variety of industrial settings.” Source: RevenueBase Database · checked Sep 30, 2026
20	Solecta, INC	Strong evidence	Oceanside, CA, United StatesHQ checked Sep 30, 2026	51-200	49 contacts →
	Strong evidence “At Solecta, we combine our deep understanding of membrane applications, high-value separation processes and our client's needs to quickly develop solutions that deliver proven…” Source: RevenueBase Database · checked Sep 30, 2026
21	Applied Membranes INC	Indirect evidence	Vista, CA, United StatesHQ checked Sep 30, 2026	201-500	46 contacts →
	Indirect evidence “Global water technology solutions provider since 1983.” Source: RevenueBase Database · checked Sep 30, 2026
22	Critical Process Filtration	Partial evidence	Nashua, NH, United StatesHQ checked Sep 30, 2026	51-200	46 contacts →
	Partial evidence “Critical Process Filtration is a leading manufacturer of high-quality filtration solutions for pharmaceutical, electronics, process water, and gas filtration.” Source: RevenueBase Database · checked Sep 30, 2026
23	Membrane Technology And Research MTR , INC	Strong evidence	Newark, CA, United StatesHQ checked Sep 30, 2026	51-200	45 contacts →
	Strong evidence “MTR is a world leader in the development and production of membrane-based separation systems for the petrochemical, natural gas and refining industries.” Source: RevenueBase Database · checked Sep 30, 2026
24	Sterlitech Corporation	Partial evidence	Auburn, WA, United StatesHQ checked Sep 30, 2026	11-50	45 contacts →
	Partial evidence “Sterlitech Sterlitech Corporation’s portfolio covers an array of unparalleled filtration products designed to push the boundaries of: Execution of routine methods Membrane…” Source: RevenueBase Database · checked Sep 30, 2026
25	Filtra-Systems Company LLC	Indirect evidence	Southfield, MI, United StatesHQ checked Sep 30, 2026	51-200	43 contacts →
	Indirect evidence “The world of industrial filtration is constantly evolving alongside the industries that rely on it.” 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 separation 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 separation manufacturers.
Partial evidence: Its own public description names part of membrane separation manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name membrane separation 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 263 membrane separation manufacturers based in the United States

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Membrane separation manufacturers based in the United States at a glance

As of Sep 30, 2026

37.4%Verified-email coverage

38.1Average contacts per company

11-50Median size (employees)

3.4%Largest-city concentration · Houston

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

11-50

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 263 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 separation 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 separation 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 separation 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 separation 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, 3,752 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 separation 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 separation manufacturers are there based in the United States?

RevenueBase identified 263 membrane separation 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?

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

Which city has the most membrane separation manufacturers?

Houston leads with 9 headquartered companies, followed by Denver (4) and Vista (4).

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 3,752 verified decision-maker contacts tracked across these 263 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.