Company lists · Data refreshed September 2026
Top 25 Point of use water systems providers based in the United States
RevenueBase identified 1,242 point of use water systems providers headquartered in the United States as of September 2026 and tracks 15,027 professional contacts across them, including 3,488 with verified work emails. Houston is the largest hub.
This list covers point of use water systems providers 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 point of use water systems providers based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,830 contacts → | ||||
Partial evidence “There’s nothing more fundamental to life on Earth than water.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,127 contacts → | ||||
Partial evidence “Zurn Elkay Water Solutions supplies the industry’s widest range of clean water solutions for drinking water, hygiene and sustainable water management.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 454 contacts → | ||||
Partial evidence “Culligan Quench understands your workplace has unique water needs.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 354 contacts → | ||||
Partial evidence “At Culligan Water Conditioning of Jacksonville FL, we not only aim to provide better water to the community, we are also committed to building a better, more sustainable world.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 119 contacts → | ||||
Partial evidence “Established in 1932 and headquartered in Newton, Massachusetts, Barclay Water Management, Inc.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 104 contacts → | ||||
Indirect evidence “Blake Equipment has been proudly serving the Northeast since 1927.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 102 contacts → | ||||
Strong evidence “OASIS International is a global leader in the design, manufacture and distribution of clean drinking water systems.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 97 contacts → | ||||
Partial evidence “Avalon offers Perfect Water, Every Time by providing bottleless filtered water coolers that have been rigorously tested and are held up to the highest standards in the industry.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 94 contacts → | ||||
Indirect evidence “Why Pureflow?” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 86 contacts → | ||||
Strong evidence “We Design, Build, Install, Start Up, and Validate High-Purity Water Systems-Improving Lives Through Water Purification.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 82 contacts → | ||||
Partial evidence “cleanwater1 is the leading provider of water quality solutions in the US and the only to offer a complete set of end-to-end water quality and wastewater treatment products and…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 77 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 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 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 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 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 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 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 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 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 69 contacts → | ||||
Partial evidence “At LifeStraw our mission is simple, we believe everyone deserves equitable access to safe drinking water.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 63 contacts → | ||||
Partial evidence “At Artesian Bottleless Water, we help businesses eliminate plastic waste and upgrade their office hydration with our purified bottleless water and ice machines.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 62 contacts → | ||||
Partial 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 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 62 contacts → | ||||
Strong 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 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 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 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 62 contacts → | ||||
Strong evidence “Kinetico Advanced Water Systems helps you understand and fix your water issues through custom analysis and tailored solutions.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 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 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 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 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 57 contacts → | ||||
Indirect evidence “Office H2O is a family-owned and operated business that delivers cleaner, more sustainable hydration solutions for businesses all across Indiana, Kentucky, Illinois, Ohio, and…” 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: point of use water systems providers. 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 point of use water systems providers.
- Partial evidence
- Its own public description names part of point of use water systems providers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name point of use water systems providers. 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 1,242 point of use water systems providers based in the United States
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Point of use water systems providers 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 1,242 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 point of use water systems providers, 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 “point of use water systems providers”. 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 point of use water systems providers), 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 point of use water systems providers, 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, 3,488 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.
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 point of use water systems providers, 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 point of use water systems providers are there based in the United States?
RevenueBase identified 1,242 point of use water systems providers 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?
Culligan International, headquartered in Rosemont, tops this list with the largest team on record.
Which city has the most point of use water systems providers?
Houston leads with 17 headquartered companies, followed by Miami (13) and San Antonio (11).
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 3,488 verified decision-maker contacts tracked across these 1,242 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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