Company lists · Data refreshed September 2026

Top 25 Wastewater recycling companies worldwide

Name: Wastewater recycling companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 5,778 companies tracked

RevenueBase identified 5,778 wastewater recycling companies worldwide as of September 2026 and tracks 102,961 professional contacts across them, including 24,814 with verified work emails. The United States is the largest market and Pune the largest hub.

This list covers wastewater recycling 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 22, 2026. Country and city lists for wastewater recycling 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 22, 2026 86% judged on-target in blind review

5,778Companies

102,961Contacts tracked

24,814Verified emails

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The 25 largest wastewater recycling companies worldwide

Ranked by team size

Top 25 of 5,778 wastewater recycling companies worldwide, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to wastewater recycling 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	Pentair	Indirect evidence	London, United KingdomHQ checked Sep 22, 2026	5,001-10,000	6,636 contacts →
	Indirect evidence “At Pentair, we help the world sustainably move, improve, and enjoy water, life’s most essential resource.” Source: RevenueBase Database · checked Sep 22, 2026
2	ION Exchange India LTD	Indirect evidence	Mumbai, IndiaHQ checked Sep 22, 2026	1,001-5,000	3,810 contacts →
	Indirect evidence “At Ion Exchange India, we bring you total environment solutions - water treatment, liquid waste treatment & recycle, air pollution control, solid & hazardous waste management and…” Source: RevenueBase Database · checked Sep 22, 2026
3	Anglian Water Services	Partial evidence	Huntingdon, United KingdomHQ checked Sep 22, 2026	5,001-10,000	3,430 contacts →
	Partial evidence “Anglian Water supply water and water recycling services to more than six million domestic and business customers in the east of England and Hartlepool.” Source: RevenueBase Database · checked Sep 22, 2026
4	Evoqua Water Technologies	Indirect evidence	Washington, DC, United StatesHQ checked Sep 22, 2026	10001+	2,639 contacts →
	Indirect evidence “Evoqua has now joined Xylem.” Source: RevenueBase Database · checked Sep 22, 2026
5	VA Tech Wabag LTD	Indirect evidence	Wabag House, IndiaHQ checked Sep 22, 2026	1,001-5,000	2,375 contacts →
	Indirect evidence “WABAG, a global leader in the water industry, is backed by rich experience spanning over 100 years.” Source: RevenueBase Database · checked Sep 22, 2026
6	Volvo Eicher Commerical Vehical Limited	Partial evidence	Dhar, IndiaHQ checked Sep 22, 2026	n/a	1,196 contacts →
	Partial evidence “Volvo Eicher Commerical Vehical Limited Service Provider of waste water recycling systems, drinking water plant & industrial water treatment in Indore, Madhya Pradesh.” Source: RevenueBase Database · checked Sep 22, 2026
7	Remondis Gruppe	Partial evidence	Lünen, GermanyHQ checked Sep 22, 2026	10001+	905 contacts →
	Partial evidence “REMONDIS is one of the world’s leading privately run recycling, service and water companies with around 800 business locations in over 30 countries and across four continents.” Source: RevenueBase Database · checked Sep 22, 2026
8	Aquatech	Indirect evidence	Canonsburg, PA, United StatesHQ checked Sep 22, 2026	501-1,000	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 22, 2026
9	OVIVO	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 22, 2026	501-1,000	829 contacts →
	Indirect evidence “Ovivo is a powerful global brand, uniting world-renowned trademarks and a highly specialized team of 700 water treatment experts operating across the globe.” Source: RevenueBase Database · checked Sep 22, 2026
10	Gradiant	Indirect evidence	Woburn, MA, United StatesHQ checked Sep 22, 2026	1,001-5,000	813 contacts →
	Indirect evidence “Gradiant is a Different Kind of Water Company.” Source: RevenueBase Database · checked Sep 22, 2026
11	Evides Waterbedrijf	Indirect evidence	Rotterdam, NetherlandsHQ checked Sep 22, 2026	501-1,000	753 contacts →
	Indirect evidence “Duurzaam, innovatief en in verbinding met de omgeving; zo werkt Evides Waterbedrijf.” Source: RevenueBase Database · checked Sep 22, 2026
12	Trojan Technologies	Indirect evidence	London, ON, CanadaHQ checked Sep 22, 2026	501-1,000	716 contacts →
	Indirect evidence “Our Vision To continuously advance water treatment, ensuring everyone has access to clean water, globally.” Source: RevenueBase Database · checked Sep 22, 2026
13	ENVA	Partial evidence	Enva, United KingdomHQ checked Sep 22, 2026	1,001-5,000	653 contacts →
	Partial evidence “Enva is a full-service and leading provider of recycling and resource recovery solutions, employing over 1700 people at locations across the United Kingdom and Ireland.” Source: RevenueBase Database · checked Sep 22, 2026
14	Nijhuis Saur Industries	Indirect evidence	Doetinchem, NetherlandsHQ checked Sep 22, 2026	1,001-5,000	609 contacts →
	Indirect evidence “Founded in 1904, Nijhuis Saur Industries provides solid and adaptive solutions for sustainable and resilient water use, energy- and resource recovery.” Source: RevenueBase Database · checked Sep 22, 2026
15	IDE Technologies	Indirect evidence	Kadima, IsraelHQ checked Sep 22, 2026	501-1,000	603 contacts →
	Indirect evidence “A world leader in water treatment solutions, IDE specializes in the development, engineering, construction and operation of enhanced desalination and industrial water treatment…” Source: RevenueBase Database · checked Sep 22, 2026
16	Westech Engineering	Partial evidence	Salt Lake City, UT, United StatesHQ checked Sep 22, 2026	501-1,000	554 contacts →
	Partial 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 22, 2026
17	Rochem Separation Systems India Pvt. LTD	Partial evidence	Mumbai, IndiaHQ checked Sep 22, 2026	1,001-5,000	536 contacts →
	Partial evidence “We as, Rochem Separation Systems offer 100% water reuse solutions to treat industrial wastewater since 1992.” Source: RevenueBase Database · checked Sep 22, 2026
18	RSE	Strong evidence	Inverness Highlands, United KingdomHQ checked Sep 22, 2026	501-1,000	498 contacts →
	Strong evidence “RSE is a trusted clean water technology company, developing market leading products and solutions for purifying drinking water, recycling wastewater and cleaning water in…” Source: RevenueBase Database · checked Sep 22, 2026
19	GS Inima Brasil	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 22, 2026	1,001-5,000	439 contacts →
	Indirect evidence “A GS Inima Brasil é uma das maiores e mais respeitadas companhias privadas de saneamento do país, oferecendo soluções inovadoras e integradas.” Source: RevenueBase Database · checked Sep 22, 2026
20	Liquid Environmental Solutions	Partial evidence	Irving, TX, United StatesHQ checked Sep 22, 2026	501-1,000	427 contacts →
	Partial evidence “Liquid Environmental Solutions - the largest, exclusively non-hazardous US wastewater collection and disposal company, is known for innovation and leadership in protecting…” Source: RevenueBase Database · checked Sep 22, 2026
21	Waterleau	Indirect evidence	Wespelaar, FranceHQ checked Sep 22, 2026	201-500	411 contacts →
	Indirect evidence “Waterleau is your partner in sustainable water stewardship.” Source: RevenueBase Database · checked Sep 22, 2026
22	Krüger A S	Indirect evidence	Søborg, DenmarkHQ checked Sep 22, 2026	201-500	390 contacts →
	Indirect evidence “Krüger is an internationally oriented environmental company specializing in sustainable water treatment.” Source: RevenueBase Database · checked Sep 22, 2026
23	Proxa Water	Indirect evidence	Woodmead, South AfricaHQ checked Sep 22, 2026	201-500	358 contacts →
	Indirect evidence “Proxa is a leading water treatment specialist whose integrated services cover the entire water cycle and span numerous global industries, including: mining, food & beverage…” Source: RevenueBase Database · checked Sep 22, 2026
24	L&t	Indirect evidence	Chennai, IndiaHQ checked Sep 22, 2026	5,001-10,000	350 contacts →
	Indirect evidence “L&T Construction's Water & Effluent Treatment business vertical provides state-of-the-art design, detailed engineering, procurement, project management, project execution…” Source: RevenueBase Database · checked Sep 22, 2026
25	Vasu Chemicals LLP	Indirect evidence	Mumbai, IndiaHQ checked Sep 22, 2026	501-1,000	330 contacts →
	Indirect evidence “Vasu Chemicals LLP is India's leading industrial water treatment solutions provider.” Source: RevenueBase Database · checked Sep 22, 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: wastewater recycling 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 wastewater recycling companies.
Partial evidence: Its own public description names part of wastewater recycling companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name wastewater recycling 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 5,778 wastewater recycling companies worldwide

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Wastewater recycling companies worldwide at a glance

As of Sep 22, 2026

24.1%Verified-email coverage

17.8Average contacts per company

11-50Median size (employees)

1.4%Largest-city concentration · Pune

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

2,208

11-50

2,240

51-200

898

201-500

249

501-1,000

1,001-5,000

5,001-10,000

10001+

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 wastewater recycling 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 wastewater recycling companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “wastewater recycling 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 wastewater recycling 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 wastewater recycling 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, 24,814 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 22, 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.

Wastewater recycling companies by location

30 lists · largest first

Every Wastewater recycling companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 wastewater recycling 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 wastewater recycling companies are there worldwide?

RevenueBase identified 5,778 wastewater recycling 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?

Pentair, headquartered in London, tops this list with the largest team on record.

Which country has the most wastewater recycling companies?

The United States leads with 870 companies, followed by India (796) and Brazil (263). Every wastewater recycling companies list by country and city is linked on this page.

Which city has the most wastewater recycling companies?

Pune leads with 81 headquartered companies, followed by Ahmedabad (67) and Chennai (50).

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 24,814 verified decision-maker contacts tracked across these 5,778 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 22, 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.