Company lists · Data refreshed September 2026

Top 25 Desalination equipment manufacturers based in the United States

Name: Desalination equipment 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 16, 2026 296 companies tracked

RevenueBase identified 296 desalination equipment manufacturers headquartered in the United States as of September 2026 and tracks 5,320 professional contacts across them, including 2,076 with verified work emails. Houston is the largest hub.

This list covers desalination equipment 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 16, 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 16, 2026 86% judged on-target in blind review

296Companies

5,320Contacts tracked

2,076Verified emails

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The 25 largest desalination equipment manufacturers based in the United States

Ranked by team size

Top 25 of 296 desalination equipment manufacturers based in the United States, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to desalination equipment 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	Aquatech	Partial evidence	Canonsburg, PA, United StatesHQ checked Sep 16, 2026	501-1,000	903 contacts →
	Partial 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 16, 2026
2	Westech Engineering	Strong evidence	Salt Lake City, UT, United StatesHQ checked Sep 16, 2026	501-1,000	554 contacts →
	Strong 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 16, 2026
3	Culligan By Waterco	Indirect evidence	Lombard, IL, United StatesHQ checked Sep 16, 2026	501-1,000	265 contacts →
	Indirect 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 16, 2026
4	Energy Recovery, INC	Partial evidence	San Leandro, CA, United StatesHQ checked Sep 16, 2026	201-500	219 contacts →
	Partial evidence “Energy Recovery (Nasdaq: ERII) designs and manufactures world-class energy-saving technology for critical infrastructure that communities rely on every day, driving a more…” Source: RevenueBase Database · checked Sep 16, 2026
5	Samco Technologies	Indirect evidence	Buffalo, NY, United StatesHQ checked Sep 16, 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 16, 2026
6	FEDCO	Strong evidence	Monroe, MI, United StatesHQ checked Sep 16, 2026	51-200	79 contacts →
	Strong evidence “FEDCO is a global leader in the manufacture and sale of pumps and energy recovery devices (ERDs) for brackish and seawater reverse osmosis (RO) desalination systems.” Source: RevenueBase Database · checked Sep 16, 2026
7	Lakos Filtration Solutions	Partial evidence	Fresno, CA, United StatesHQ checked Sep 16, 2026	51-200	73 contacts →
	Partial 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 16, 2026
8	Marlo Incorporated	Strong evidence	Racine, WI, United StatesHQ checked Sep 16, 2026	51-200	62 contacts →
	Strong 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 16, 2026
9	Wigen Water Technologies	Indirect evidence	Minneapolis, MN, United StatesHQ checked Sep 16, 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 16, 2026
10	Emco Group	Indirect evidence	Canton, MA, United StatesHQ checked Sep 16, 2026	51-200	60 contacts →
	Indirect evidence “EMCO Group is a well-established company with over 44 years of experience in the water and wastewater treatment industry.” Source: RevenueBase Database · checked Sep 16, 2026
11	Ameriwater	Partial evidence	Dayton, OH, United StatesHQ checked Sep 16, 2026	51-200	59 contacts →
	Partial evidence “AmeriWater is the recognized specialist in the design, manufacturing, installation and supply of water treatment equipment and services.” Source: RevenueBase Database · checked Sep 16, 2026
12	Watertectonics	Partial evidence	Everett, WA, United StatesHQ checked Sep 16, 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 16, 2026
13	Kemco Systems	Partial evidence	Clearwater, FL, United StatesHQ checked Sep 16, 2026	51-200	55 contacts →
	Partial evidence “Kemco Systems, a CECO Environmental Brand, designs and manufactures energy and water conservation systems for Water Reuse/Recycle, Wastewater Treatment, Wastewater Filtration…” Source: RevenueBase Database · checked Sep 16, 2026
14	Clear Creek Systems	Indirect evidence	Bakersfield, CA, United StatesHQ checked Sep 16, 2026	51-200	54 contacts →
	Indirect evidence “Clear Creek Systems is a leading provider of water treatment systems and services.” Source: RevenueBase Database · checked Sep 16, 2026
15	Puronics	Partial evidence	Livermore, CA, United StatesHQ checked Sep 16, 2026	51-200	51 contacts →
	Partial evidence “Manufacturer of a complete line of water treatment systems for homes and businesses.” Source: RevenueBase Database · checked Sep 16, 2026
16	Applied Membranes INC	Indirect evidence	Vista, CA, United StatesHQ checked Sep 16, 2026	201-500	46 contacts →
	Indirect evidence “Global water technology solutions provider since 1983.” Source: RevenueBase Database · checked Sep 16, 2026
17	Watersurplus	Indirect evidence	Loves Park, IL, United StatesHQ checked Sep 16, 2026	51-200	45 contacts →
	Indirect evidence “WaterSurplus is a leader in sustainable water treatment, delivering high-performance solutions across industries.” Source: RevenueBase Database · checked Sep 16, 2026
18	Amiad USA	Indirect evidence	Mooresville, NC, United StatesHQ checked Sep 16, 2026	51-200	39 contacts →
	Indirect evidence “Amiad USA, Aslan technologies and PEP Filters are the North American subsidiaries of Amiad Water Systems, Inc.” Source: RevenueBase Database · checked Sep 16, 2026
19	Roberts Filter Group	Indirect evidence	Coatesville, PA, United StatesHQ checked Sep 16, 2026	51-200	39 contacts →
	Indirect 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 16, 2026
20	Membrion, INC	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 16, 2026	11-50	37 contacts →
	Indirect evidence “Membrion helps industrial facilities solve complex wastewater challenges that conventional treatment systems weren’t designed to handle.” Source: RevenueBase Database · checked Sep 16, 2026
21	ROTEC	Partial evidence	Marlton, NJ, United StatesHQ checked Sep 16, 2026	11-50	36 contacts →
	Partial evidence “ROTEC offers ultra-high recovery desalination via the proprietary Flow Reversal technology, that “goes against the flow” of conventional design thinking, boosting performance…” Source: RevenueBase Database · checked Sep 16, 2026
22	Ovivo USA LLC	Indirect evidence	Salt Lake City, UT, United StatesHQ checked Sep 16, 2026	501-1,000	33 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
23	H2o Incorporated	Indirect evidence	Lafayette, LA, United StatesHQ checked Sep 16, 2026	51-200	32 contacts →
	Indirect evidence “For more than 35 years, H2O has built a reputation for offering complete, industry-leading water treatment systems for the offshore oil and gas and marine markets.” Source: RevenueBase Database · checked Sep 16, 2026
24	Axeon Water Technologies	Partial evidence	Temecula, CA, United StatesHQ checked Sep 16, 2026	51-200	32 contacts →
	Partial evidence “AXEON Water Technologies is a manufacturer and distributor of membrane filtration systems, components, and services for industrial, commercial and residential applications.” Source: RevenueBase Database · checked Sep 16, 2026
25	Clearstream Environmental, INC	Indirect evidence	Sandy, UT, United StatesHQ checked Sep 16, 2026	11-50	31 contacts →
	Indirect evidence “ClearStream Environmental engineers high-performance water and wastewater treatment solutions for municipal and industrial applications.” Source: RevenueBase Database · checked Sep 16, 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: desalination equipment 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 desalination equipment manufacturers.
Partial evidence: Its own public description names part of desalination equipment manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name desalination equipment 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 296 desalination equipment manufacturers based in the United States

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Desalination equipment manufacturers based in the United States at a glance

As of Sep 16, 2026

39.0%Verified-email coverage

18.0Average contacts per company

11-50Median size (employees)

3.7%Largest-city concentration · Houston

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

127

11-50

116

51-200

201-500

501-1,000

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 296 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 desalination equipment 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 “desalination equipment 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 desalination equipment 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 desalination equipment 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, 2,076 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 16, 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 desalination equipment 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 desalination equipment manufacturers are there based in the United States?

RevenueBase identified 296 desalination equipment 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?

Aquatech, headquartered in Canonsburg, tops this list with the largest team on record.

Which city has the most desalination equipment manufacturers?

Houston leads with 11 headquartered companies, followed by Irvine (5) and Tucson (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 2,076 verified decision-maker contacts tracked across these 296 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 16, 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.