Company lists · Data refreshed September 2026

Top 25 Agricultural water filtration companies based in the United States

Name: Agricultural water filtration 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 19, 2026 647 companies tracked

RevenueBase identified 647 agricultural water filtration companies headquartered in the United States as of September 2026 and tracks 12,681 professional contacts across them, including 4,593 with verified work emails. Houston is the largest hub.

This list covers agricultural water filtration 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 19, 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 19, 2026 86% judged on-target in blind review

647Companies

12,681Contacts tracked

4,593Verified emails

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The 25 largest agricultural water filtration companies based in the United States

Ranked by team size

Top 25 of 647 agricultural water filtration companies based in the United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to agricultural water filtration 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	Donaldson	Partial evidence	Bloomington, MN, United StatesHQ checked Sep 19, 2026	10001+	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 19, 2026
2	Culligan By Waterco	Partial evidence	Lombard, IL, United StatesHQ checked Sep 19, 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 19, 2026
3	Orenco Systems, INC	Indirect evidence	Sutherlin, OR, United StatesHQ checked Sep 19, 2026	201-500	170 contacts →
	Indirect evidence “Nobody wants to worry about whether their wastewater is contaminating nearby rivers, streams, and wells.” Source: RevenueBase Database · checked Sep 19, 2026
4	Apex Water And Process	Strong evidence	St Michael, MN, United StatesHQ checked Sep 19, 2026	201-500	143 contacts →
	Strong evidence “Apex, a trusted leader in water and process management, delivers integrated solutions that empower agricultural, commercial, and industrial customers across the U.S.” Source: RevenueBase Database · checked Sep 19, 2026
5	Pureflow, INC	Indirect evidence	Graham, NC, United StatesHQ checked Sep 19, 2026	51-200	94 contacts →
	Indirect evidence “Why Pureflow?” Source: RevenueBase Database · checked Sep 19, 2026
6	Fresh Water Systems	Strong evidence	Greenville, SC, United StatesHQ checked Sep 19, 2026	51-200	76 contacts →
	Strong evidence “Fresh Water Systems is a relationally-driven provider of filtration solutions that leverage expertise and intentionality to connect with conscientious businesses and consumers.” Source: RevenueBase Database · checked Sep 19, 2026
7	Lakos Filtration Solutions	Strong evidence	Fresno, CA, United StatesHQ checked Sep 19, 2026	51-200	73 contacts →
	Strong 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 19, 2026
8	Paragon Water Systems INC	Strong evidence	Tampa, FL, United StatesHQ checked Sep 19, 2026	201-500	73 contacts →
	Strong 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 19, 2026
9	Carbon Activated Corp	Indirect evidence	Compton, CA, United StatesHQ checked Sep 19, 2026	201-500	72 contacts →
	Indirect evidence “Carbon Activated Corporation (CAC) is a world leader in the supply of activated carbon and related services.” Source: RevenueBase Database · checked Sep 19, 2026
10	Clear Water Services	Partial evidence	Everett, WA, United StatesHQ checked Sep 19, 2026	51-200	72 contacts →
	Partial 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 19, 2026
11	DHI	Strong evidence	Vernal, UT, United StatesHQ checked Sep 19, 2026	51-200	71 contacts →
	Strong evidence “DHI delivers integrated water movement, treatment, separation, automation, and infrastructure systems for industrial, energy, agricultural, and environmental applications.” Source: RevenueBase Database · checked Sep 19, 2026
12	Spectrum	Partial evidence	Geismar, LA, United StatesHQ checked Sep 19, 2026	51-200	69 contacts →
	Partial evidence “At Spectrum, our mission is simple: to provide smarter, more efficient, and sustainable water solutions.” Source: RevenueBase Database · checked Sep 19, 2026
13	Puragain Water	Strong evidence	Escondido, CA, United StatesHQ checked Sep 19, 2026	11-50	62 contacts →
	Strong evidence “Puragain Water is a family owned business that takes pride in offering the very best in water filtration systems.” Source: RevenueBase Database · checked Sep 19, 2026
14	Kinetico Advanced Water Systems	Partial evidence	Garner, NC, United StatesHQ checked Sep 19, 2026	51-200	62 contacts →
	Partial evidence “Kinetico Advanced Water Systems helps you understand and fix your water issues through custom analysis and tailored solutions.” Source: RevenueBase Database · checked Sep 19, 2026
15	Watertectonics	Partial evidence	Everett, WA, United StatesHQ checked Sep 19, 2026	11-50	59 contacts →
	Partial evidence “Established in WaterTectonics designs, manufactures, deploys and services integrated water treatment solutions for clients in oil & gas, mining, industrial and construction…” Source: RevenueBase Database · checked Sep 19, 2026
16	Aquasana	Partial evidence	Austin, TX, United StatesHQ checked Sep 19, 2026	51-200	59 contacts →
	Partial evidence “At Aquasana we believe clean water and a healthy environment are the most important components to healthy living and overall well-being.” Source: RevenueBase Database · checked Sep 19, 2026
17	Deerpoint Group	Strong evidence	Madera, CA, United StatesHQ checked Sep 19, 2026	51-200	55 contacts →
	Strong evidence “Since 1993, Deerpoint Group has been a recognized leader in water treatment solutions for agricultural irrigation.” Source: RevenueBase Database · checked Sep 19, 2026
18	Clear Creek Systems	Partial evidence	Bakersfield, CA, United StatesHQ checked Sep 19, 2026	51-200	54 contacts →
	Partial evidence “Clear Creek Systems is a leading provider of water treatment systems and services.” Source: RevenueBase Database · checked Sep 19, 2026
19	Rosedale Products, INC	Indirect evidence	Ann Arbor, MI, United StatesHQ checked Sep 19, 2026	51-200	54 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
20	Multipure International	Partial evidence	Las Vegas, NV, United StatesHQ checked Sep 19, 2026	51-200	51 contacts →
	Partial evidence “Water is everywhere - in the air, in the ground, in the rivers and lakes.” Source: RevenueBase Database · checked Sep 19, 2026
21	Applied Membranes INC	Partial evidence	Vista, CA, United StatesHQ checked Sep 19, 2026	201-500	46 contacts →
	Partial evidence “Global water technology solutions provider since 1983.” Source: RevenueBase Database · checked Sep 19, 2026
22	Nephros	Partial evidence	South Orange, NJ, United StatesHQ checked Sep 19, 2026	11-50	40 contacts →
	Partial evidence “Nephros is committed to improving the human relationship with water through leading, accessible technology.” Source: RevenueBase Database · checked Sep 19, 2026
23	Amiad USA	Partial evidence	Mooresville, NC, United StatesHQ checked Sep 19, 2026	51-200	39 contacts →
	Partial evidence “Amiad USA, Aslan technologies and PEP Filters are the North American subsidiaries of Amiad Water Systems, Inc.” Source: RevenueBase Database · checked Sep 19, 2026
24	Roberts Filter Group	Strong evidence	Coatesville, PA, United StatesHQ checked Sep 19, 2026	51-200	39 contacts →
	Strong evidence “Roberts Filter Group is the largest family-owned water filtration company in the United States, with more than installations across five continents.” Source: RevenueBase Database · checked Sep 19, 2026
25	Equipsolutions, LLC	Indirect evidence	Roselle, IL, United StatesHQ checked Sep 19, 2026	51-200	37 contacts →
	Indirect evidence “Welcome to EquipSolutions.” Source: RevenueBase Database · checked Sep 19, 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: agricultural water filtration 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 agricultural water filtration companies.
Partial evidence: Its own public description names part of agricultural water filtration companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name agricultural water filtration 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 647 agricultural water filtration companies based in the United States

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Agricultural water filtration companies based in the United States at a glance

As of Sep 19, 2026

36.2%Verified-email coverage

19.6Average contacts per company

1-10Median size (employees)

1.4%Largest-city concentration · Houston

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

323

11-50

238

51-200

201-500

501-1,000

1,001-5,000

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 647 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 agricultural water filtration 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 “agricultural water filtration 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 agricultural water filtration 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 agricultural water filtration 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, 4,593 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 19, 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 agricultural water filtration 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 agricultural water filtration companies are there based in the United States?

RevenueBase identified 647 agricultural water filtration 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?

Donaldson, headquartered in Bloomington, tops this list with the largest team on record.

Which city has the most agricultural water filtration companies?

Houston leads with 9 headquartered companies, followed by Miami (8) and Las Vegas (7).

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 4,593 verified decision-maker contacts tracked across these 647 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 19, 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.