Company lists · Data refreshed September 2026
Top 25 Filtration and separation equipment makers based in the United States
RevenueBase identified 794 filtration and separation equipment makers headquartered in the United States as of September 2026 and tracks 27,292 professional contacts across them, including 9,918 with verified work emails. Houston is the largest hub.
This list covers filtration and separation equipment makers 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 20, 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.
The 25 largest filtration and separation equipment makers based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 6,614 contacts → | ||||
Partial evidence “Donaldson Company helps solve some of the world's most complex filtration and contamination control challenges.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 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 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,069 contacts → | ||||
Partial evidence “Atmus designs, manufactures and sells filtration solutions that create a better future by protecting what is important.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 662 contacts → | ||||
Indirect evidence “AAF International traces its roots to Bill Reed, a skilled engineer and shrewd entrepreneur who recognised in 1921 that cleaning the air was critical to the growth of society, the…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 562 contacts → | ||||
Partial evidence “Filtration Group is a global market-leading provider of filtration consumables that are designed to drive innovation and deliver solutions across a broad spectrum of applications…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 391 contacts → | ||||
Indirect evidence “For 75 years, Derrick’s story has been fueled by customers who have put their trust in us, partners who challenged us and employees who believed in us.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 373 contacts → | ||||
Indirect evidence “Meissner manufactures advanced microfiltration and single-use systems.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 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 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 227 contacts → | ||||
Partial evidence “Flanders is a leading air filtration products manufacturer.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 214 contacts → | ||||
Strong evidence “The Rotex Group pioneered the dry separation industry and grew to become a global manufacturer of industrial separation equipment, becoming a subsidiary of Hillenbrand, Inc.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 213 contacts → | ||||
Indirect evidence “Columbus Industries is a global company that has grown steadily since its inception in 1965 to include over 900 associates in seven locations worldwide.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 210 contacts → | ||||
Strong evidence “We are a worldwide expert in Liquid-Solid Separation & Air Filtration and a leading provider of Filter Media, Filter Presses, Vacuum Filters, Baghouse products, and expert Field…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 184 contacts → | ||||
Strong evidence “Graver Technologies, LLC serves the industrial filtration, separation and purification needs of companies around the globe.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 175 contacts → | ||||
Partial evidence “SWECO is a world leader in providing particle separation and size reduction solutions.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 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 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 144 contacts → | ||||
Partial evidence “PECO is part of Parker Hannifin, Industrial Process Filtration Division.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 142 contacts → | ||||
Partial evidence “Cleanova is a global filtration leader bringing together a portfolio of highly respected brands, including Micronics, Allied, Dollinger, SOLAFT, Plenty, and Vokes, among many…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 137 contacts → | ||||
Indirect evidence “Schroeder Industries, an ISO 9001:2015 certified company, is a leader in fluid conditioning technology.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 136 contacts → | ||||
Strong evidence “Clark-Reliance® continues to be the global leader in the level indication and control, sightflow indication, and filtration and separation industries.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 124 contacts → | ||||
Strong evidence “We manufacture industrial filtration, separation, and silencing products that protect machinery and the surrounding environment.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 124 contacts → | ||||
Indirect evidence “Abatement Technologies, Inc.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 113 contacts → | ||||
Strong 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 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 110 contacts → | ||||
Indirect evidence “ROKI America Co, Ltd is an automotive company based out of 2001 Production Dr, Findlay, Ohio, United States.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 103 contacts → | ||||
Partial evidence “A leading supplier of equipment and systems for the Chemical and Pharmaceutical industries.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 102 contacts → | ||||
Partial evidence “KX Technologies is your Global Filtration Partner.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
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: filtration and separation equipment makers. 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 filtration and separation equipment makers.
- Partial evidence
- Its own public description names part of filtration and separation equipment makers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name filtration and separation equipment makers. 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 794 filtration and separation equipment makers based in the United States
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Filtration and separation equipment makers based in the United States at a glance
As of Sep 20, 2026Companies by employee count
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 794 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 filtration and separation equipment makers, 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 “filtration and separation equipment makers”. 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 filtration and separation equipment makers), 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 filtration and separation equipment makers, 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, 9,918 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 20, 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.
Filtration and separation equipment makers by metro
- Filtration and separation equipment makers in Houston30
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 filtration and separation equipment makers, 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 filtration and separation equipment makers are there based in the United States?
RevenueBase identified 794 filtration and separation equipment makers 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?
Donaldson, headquartered in Bloomington, tops this list with the largest team on record.
Which city has the most filtration and separation equipment makers?
Houston leads with 30 headquartered companies, followed by Cleveland (6) and Dallas (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 9,918 verified decision-maker contacts tracked across these 794 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 20, 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.
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