Company lists · Data refreshed September 2026

Top 25 Ultrafiltration system companies based in the United States

Name: Ultrafiltration system companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 553 companies tracked

RevenueBase identified 553 ultrafiltration system companies headquartered in the United States as of September 2026 and tracks 14,309 professional contacts across them, including 5,127 with verified work emails. Houston is the largest hub.

This list covers ultrafiltration system companies 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 22, 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 22, 2026 86% judged on-target in blind review

553Companies

14,309Contacts tracked

5,127Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest ultrafiltration system companies based in the United States

Ranked by team size

Top 25 of 553 ultrafiltration system companies based in the United States, 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	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
3	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
4	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
5	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
6	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
7	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
8	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
9	Aqua-Chem	Indirect evidence	Knoxville, TN, United StatesHQ checked Sep 22, 2026	201-500	152 contacts →
	Indirect evidence “Aqua-Chem is the leader in providing Global Water Solutions.” Source: RevenueBase Database · checked Sep 22, 2026
10	Clack Corporation	Indirect evidence	Windsor, WI, United StatesHQ checked Sep 22, 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 22, 2026
11	Komline	Indirect evidence	Peapack, NJ, United StatesHQ checked Sep 22, 2026	501-1,000	113 contacts →
	Indirect 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 22, 2026
12	KX Technologies	Indirect evidence	West Haven, CT, United StatesHQ checked Sep 22, 2026	51-200	102 contacts →
	Indirect evidence “KX Technologies is your Global Filtration Partner.” Source: RevenueBase Database · checked Sep 22, 2026
13	Pureflow, INC	Indirect evidence	Graham, NC, United StatesHQ checked Sep 22, 2026	51-200	94 contacts →
	Indirect evidence “Why Pureflow?” Source: RevenueBase Database · checked Sep 22, 2026
14	JIM Myers & Sons, Inc. JMS	Indirect evidence	Charlotte, NC, United StatesHQ checked Sep 22, 2026	51-200	86 contacts →
	Indirect evidence “Founded in 1962, Jim Myers & Sons, Inc.(JMS) is a high-quality equipment manufacturer leading the way in the water & wastewater industry.” Source: RevenueBase Database · checked Sep 22, 2026
15	Samco Technologies	Indirect evidence	Buffalo, NY, United StatesHQ checked Sep 22, 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 22, 2026
16	Hydro-Dyne Engineering, INC	Indirect evidence	Clearwater, FL, United StatesHQ checked Sep 22, 2026	51-200	80 contacts →
	Indirect evidence “At Hydro-Dyne® Engineering we take great pride in our products and services as well as our ability to provide equipment for a variety of water and wastewater screen applications.” Source: RevenueBase Database · checked Sep 22, 2026
17	Water & Wastewater Equipment Company	Indirect evidence	Cleveland, OH, United StatesHQ checked Sep 22, 2026	11-50	80 contacts →
	Indirect evidence “Water and Wastewater Equipment Company has been providing efficient, cost-effective and compliant solutions to water and wastewater treatment applications for over 30 years.” Source: RevenueBase Database · checked Sep 22, 2026
18	Total Water Treatment Systems INC	Indirect evidence	Madison, WI, United StatesHQ checked Sep 22, 2026	51-200	77 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026
19	Lakos Filtration Solutions	Indirect evidence	Fresno, CA, United StatesHQ checked Sep 22, 2026	51-200	73 contacts →
	Indirect evidence “In 1972, LAKOS was founded on the belief that filtering water should be simple – both for the people who operate filtration equipment and the environment.” Source: RevenueBase Database · checked Sep 22, 2026
20	Paragon Water Systems INC	Partial evidence	Tampa, FL, United StatesHQ checked Sep 22, 2026	201-500	73 contacts →
	Partial evidence “Paragon Water Systems partners with appliance brands, foodservice operators, and industrial companies that require a reliable, scalable ODM/OEM water filtration manufacturer.” Source: RevenueBase Database · checked Sep 22, 2026
21	Clear Water Services	Indirect evidence	Everett, WA, United StatesHQ checked Sep 22, 2026	51-200	72 contacts →
	Indirect evidence “Clear Water Services provides innovative stormwater, groundwater, and process water solutions custom-designed for each client's unique goals, challenges, and mission.” Source: RevenueBase Database · checked Sep 22, 2026
22	Complete Filtration Resources, INC	Partial evidence	Marshfield, WI, United StatesHQ checked Sep 22, 2026	11-50	62 contacts →
	Partial 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 22, 2026
23	Marlo Incorporated	Indirect evidence	Racine, WI, United StatesHQ checked Sep 22, 2026	51-200	62 contacts →
	Indirect evidence “For 50 years, Marlo Incorporated has engineered and manufactured high quality water treatment equipment for a wide variety of residential, commercial, and industrial applications.” Source: RevenueBase Database · checked Sep 22, 2026
24	Nanostone Water	Indirect evidence	Waltham, MA, United StatesHQ checked Sep 22, 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 22, 2026
25	Wigen Water Technologies	Partial evidence	Minneapolis, MN, United StatesHQ checked Sep 22, 2026	51-200	62 contacts →
	Partial 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 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 553 ultrafiltration system companies based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 5,127 reachable decision-makers.

Free signup · no credit card

View the full list →

Ultrafiltration system companies based in the United States at a glance

As of Sep 22, 2026

35.8%Verified-email coverage

25.9Average contacts per company

11-50Median size (employees)

3.1%Largest-city concentration · Houston

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

208

11-50

208

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 553 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 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.
What qualifies: Companies headquartered in the United States 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. 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, 5,127 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.

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 based in the United States?

RevenueBase identified 553 ultrafiltration system companies 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 ultrafiltration system companies?

Houston leads with 17 headquartered companies, followed by Tampa (9) and Irvine (6).

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 5,127 verified decision-maker contacts tracked across these 553 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.

Ready to reach these companies? Verified emails and direct dials for all 553 ultrafiltration system companies based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

Ultrafiltration system companies by geography

Browse the directory

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.