Company lists · Data refreshed September 2026
Top 25 Forward osmosis companies worldwide
RevenueBase identified 984 forward osmosis companies worldwide as of September 2026 and tracks 8,015 professional contacts across them, including 1,548 with verified work emails. The United States is the largest market and Delhi the largest hub.
This list covers forward osmosis companies worldwide, 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. Country and city lists for forward osmosis companies follow the table.
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 forward osmosis companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 335 contacts → | ||||
Indirect evidence “CN Water is the leading provider of next-generation water technology products and water system lifecycle solutions to meet the unique needs of the Indian pharmaceutical, life…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 138 contacts → | ||||
Indirect evidence “NX Filtration is a fast-growing company that develops and manufactures hollow fiber membranes and modules for use in ultrafiltration and hollow fiber nanofiltration applications.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 95 contacts → | ||||
Indirect evidence “LEXCRU Water Tech Pvt.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 80 contacts → | ||||
Indirect evidence “Salt Separation Services Limited is an independent water treatment company specialising in the design, manufacture, installation and commissioning of water treatment systems.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 79 contacts → | ||||
Partial 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 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 77 contacts → | ||||
Partial evidence “AQUAPHOR water filters is a leading technology developer and manufacturer of drinking water purifiers, water softeners, and commercial reverse osmosis systems.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 73 contacts → | ||||
Indirect evidence “Lenntech Water Treatment Solutions, established in 1993, is a design and manufacturing company situated in The Netherlands, near the Technical University of Delft.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 70 contacts → | ||||
Indirect evidence “Aquaporin is an innovative water technology company with operations in Denmark (HQ), Singapore, Turkey, the United States, and China.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 65 contacts → | ||||
Indirect evidence “Sweetch Energy is a renewable energy company pioneering osmotic power, turning the natural salinity of water into clean, 24/7, and cost-efficient electricity.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 61 contacts → | ||||
Indirect evidence “QUA®, with our headquarters in the USA, develops, manufactures and markets advanced membrane products for water, waste water and water reuse applications to leading OEM's…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 53 contacts → | ||||
Partial evidence “Manufacturer and wholesale exporter of equipment for water treatment, both domestic and industrial, specializing in: reverse osmosis, filtration, ultrafiltration, MBR…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 51 contacts → | ||||
Indirect evidence “Sagisa is a filtration and water purification company.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 51 contacts → | ||||
Indirect evidence “Manufacturer of a complete line of water treatment systems for homes and businesses.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 46 contacts → | ||||
Indirect evidence “Global water technology solutions provider since 1983.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 46 contacts → | ||||
Indirect evidence “Jede große Geschichte hat ihren Anfang, so auch die der Bela Aqua GmbH – oder die Geschichte der beiden Menschen, die dahinterstehen: Christine und Günter Brandl.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 45 contacts → | ||||
Indirect evidence “WaterSurplus is a leader in sustainable water treatment, delivering high-performance solutions across industries.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 42 contacts → | ||||
Indirect evidence “Consolidated Water Group, LLC.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 42 contacts → | ||||
Indirect evidence “Whitefox Technologies: Pioneering towards a net zero future through purpose-driven biofuel engineering innovation.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 39 contacts → | ||||
Indirect evidence “Established in the year 2008, RO Care is today standing distinctively among numerous traders and suppliers of RO water purifier systems, RO plant products and water treatment…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 36 contacts → | ||||
Partial evidence “Think:water is a leader in the water treatment industry, offering a complete range of filters and reverse osmosis systems, entirely made in Italy.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 36 contacts → | ||||
Indirect 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 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 34 contacts → | ||||
Indirect evidence “Founded in 1995, Hitech has been recognized by I.S.O: 9001:2008, 14001:2004, 18001:2007 standards that improve the quality of water by completely eliminating the harmful…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 32 contacts → | ||||
Indirect 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 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 32 contacts → | ||||
Indirect evidence “We are based in the heart of Johannesburg, the land of Gold.” 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: forward osmosis 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 forward osmosis companies.
- Partial evidence
- Its own public description names part of forward osmosis companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name forward osmosis 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 984 forward osmosis companies worldwide
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Forward osmosis companies worldwide at a glance
As of Sep 20, 2026Companies by employee count
Email recency is reported on each country list linked below.
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 forward osmosis 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.
- Coverage
- Every country. Country and city lists for forward osmosis companies are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “forward osmosis 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 forward osmosis 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 forward osmosis companies, and records with no verified work email.
- 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, 1,548 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.
Forward osmosis companies by location
2 lists · largest firstEvery Forward osmosis companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
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 forward osmosis 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 forward osmosis companies are there worldwide?
RevenueBase identified 984 forward osmosis companies worldwide 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 country has the most forward osmosis companies?
The United States leads with 195 companies, followed by India (193). Every forward osmosis companies list by country and city is linked on this page.
Which city has the most forward osmosis companies?
Delhi leads with 20 headquartered companies, followed by Ahmedabad (16) and New Delhi (15).
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 1,548 verified decision-maker contacts tracked across these 984 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.