Company lists · Data refreshed September 2026

Top 25 Wastewater treatment equipment manufacturers worldwide

Name: Wastewater treatment equipment manufacturers worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 5,571 companies tracked

RevenueBase identified 5,571 wastewater treatment equipment manufacturers worldwide as of September 2026 and tracks 77,572 professional contacts across them, including 20,073 with verified work emails and 0 with mobile numbers. India is the largest market and Pune the largest hub.

This list covers wastewater treatment equipment manufacturers 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 19, 2026. Country and city lists for wastewater treatment equipment manufacturers 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 19, 2026 86% judged on-target in blind review

5,571Companies

77,572Contacts tracked

20,073Verified emails

0Mobile numbers

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The 25 largest wastewater treatment equipment manufacturers worldwide

Ranked by team size

Top 25 of 5,571 wastewater treatment equipment manufacturers worldwide, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to wastewater treatment 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	ION Exchange India LTD	Partial evidence	Mumbai, IndiaHQ checked Sep 19, 2026	1,001-5,000	3,810 contacts →
	Partial 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 19, 2026
2	VA Tech Wabag LTD	Indirect evidence	Wabag House, IndiaHQ checked Sep 19, 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 19, 2026
3	Volvo Eicher Commerical Vehical Limited	Partial evidence	Dhar, IndiaHQ checked Sep 19, 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 19, 2026
4	Chem-Aqua, INC	Indirect evidence	Wilmington, DE, United StatesHQ checked Sep 19, 2026	10001+	864 contacts →
	Indirect evidence “Chem-Aqua is a unique combination of knowledge, experience and stability.” Source: RevenueBase Database · checked Sep 19, 2026
5	OVIVO	Partial evidence	Montreal, QC, CanadaHQ checked Sep 19, 2026	501-1,000	829 contacts →
	Partial 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 19, 2026
6	Trojan Technologies	Partial evidence	London, ON, CanadaHQ checked Sep 19, 2026	501-1,000	716 contacts →
	Partial evidence “Our Vision To continuously advance water treatment, ensuring everyone has access to clean water, globally.” Source: RevenueBase Database · checked Sep 19, 2026
7	BWT France	Partial evidence	Saint - Denis, FranceHQ checked Sep 19, 2026	501-1,000	567 contacts →
	Partial evidence “BWT France is one of the largest subsidiaries of Austrian group Best Water Technology ( BWT), the European leader in water treatment.” Source: RevenueBase Database · checked Sep 19, 2026
8	Westech Engineering	Strong evidence	Salt Lake City, UT, United StatesHQ checked Sep 19, 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 19, 2026
9	RSE	Partial evidence	Inverness Highlands, United KingdomHQ checked Sep 19, 2026	501-1,000	498 contacts →
	Partial 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 19, 2026
10	Waterleau	Indirect evidence	Wespelaar, FranceHQ checked Sep 19, 2026	201-500	411 contacts →
	Indirect evidence “Waterleau is your partner in sustainable water stewardship.” Source: RevenueBase Database · checked Sep 19, 2026
11	UCC Environmental	Strong evidence	Waukegan, IL, United StatesHQ checked Sep 19, 2026	201-500	389 contacts →
	Strong evidence “UCC Environmental (UCC) is a global leader in environmental solutions for solids handling, wastewater treatment and pollution control technologies in power generation and other…” Source: RevenueBase Database · checked Sep 19, 2026
12	Jash Engineering Limited	Strong evidence	Indore-, IndiaHQ checked Sep 19, 2026	501-1,000	348 contacts →
	Strong evidence “An ISO-9001:2015 / ISO-14001:2015 / OHSAS ISO 45001:2018 certified company dedicated to offering varied products for use in Water and Wastewater Pumping Stations and Treatment…” Source: RevenueBase Database · checked Sep 19, 2026
13	Vasu Chemicals LLP	Partial evidence	Mumbai, IndiaHQ checked Sep 19, 2026	501-1,000	330 contacts →
	Partial evidence “Vasu Chemicals LLP is India's leading industrial water treatment solutions provider.” Source: RevenueBase Database · checked Sep 19, 2026
14	Enviro Infra Engineers LTD	Partial evidence	Delhi, IndiaHQ checked Sep 19, 2026	501-1,000	323 contacts →
	Partial evidence “Since 2009, Enviro has combined engineering excellence with a commitment to sustainability in water and wastewater solutions across India." Enviro Infra Engineers Limited stands…” Source: RevenueBase Database · checked Sep 19, 2026
15	Xylem Water Solutions UK & Ireland	Indirect evidence	Nottingham, United KingdomHQ checked Sep 19, 2026	501-1,000	319 contacts →
	Indirect evidence “Xylem is a leading global water solutions company dedicated to advancing sustainable impact and empowering the people who make water work every day.” Source: RevenueBase Database · checked Sep 19, 2026
16	Parkson Corporation	Strong evidence	Fort Lauderdale, FL, United StatesHQ checked Sep 19, 2026	51-200	317 contacts →
	Strong evidence “Parkson Corporation is a supplier of innovative, cost effective solutions for potable water, process water, and industrial and municipal wastewater treatment.” Source: RevenueBase Database · checked Sep 19, 2026
17	Infiltrator Water Technologies Decentralized Wastewater Treatment Solutions	Strong evidence	Old Saybrook, CT, United StatesHQ checked Sep 19, 2026	501-1,000	295 contacts →
	Strong evidence “Protecting the environment with innovative wastewater treatment solutions for over 35 years, Infiltrator is the leading manufacturer of onsite wastewater treatment products in…” Source: RevenueBase Database · checked Sep 19, 2026
18	Meco Mechanical Equipment Company, INC	Indirect evidence	Mandeville, LA, JamaicaHQ checked Sep 19, 2026	201-500	290 contacts →
	Indirect evidence “For over 96 years, MECO has been a world leader in designing and constructing engineered solutions for water purification.” Source: RevenueBase Database · checked Sep 19, 2026
19	WTE Infra Projects Pvt. LTD	Strong evidence	Pune, IndiaHQ checked Sep 19, 2026	501-1,000	287 contacts →
	Strong evidence “WTE is a globally recognised manufacturer & exporter of innovative Water & Wastewater Treatment Plants.” Source: RevenueBase Database · checked Sep 19, 2026
20	Grupo Fast	Indirect evidence	Capinzal, BrazilHQ checked Sep 19, 2026	201-500	275 contacts →
	Indirect evidence “Somos uma das principais indústrias do segmento metalmecânico, com sede em Santa Catarina e atuação internacional.” Source: RevenueBase Database · checked Sep 19, 2026
21	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
22	HUBER	Indirect evidence	Berching, United Arab EmiratesHQ checked Sep 19, 2026	1,001-5,000	254 contacts →
	Indirect evidence “HUBER is a globally operating company with over employees, of which around work at the headquarters in Berching (Germany).” Source: RevenueBase Database · checked Sep 19, 2026
23	Chembond Water Technologies Limited	Partial evidence	Navi Mumbai, IndiaHQ checked Sep 19, 2026	201-500	252 contacts →
	Partial evidence “Chembond Water Technologies Limited specializes in delivering advanced water treatment solutions for industrial and institutional applications.” Source: RevenueBase Database · checked Sep 19, 2026
24	Prominent North America	Partial evidence	Pit, United StatesHQ checked Sep 19, 2026	201-500	251 contacts →
	Partial evidence “ProMinent North America is part of the global ProMinent Group, a pioneer in metering technology and water treatment solutions with roots in Heidelberg, Germany.” Source: RevenueBase Database · checked Sep 19, 2026
25	Micron	Partial evidence	Mouscron, BelgiumHQ checked Sep 19, 2026	n/a	246 contacts →
	Partial evidence “Micron, part of the Pollet Water Group (PWG), offers domestic and industrial water treatment solutions throughout Europe.” 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: wastewater treatment 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 wastewater treatment equipment manufacturers.
Partial evidence: Its own public description names part of wastewater treatment equipment manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name wastewater treatment 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 5,571 wastewater treatment equipment manufacturers worldwide

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Wastewater treatment equipment manufacturers worldwide at a glance

As of Sep 19, 2026

25.9%Verified-email coverage

13.9Average contacts per company

11-50Median size (employees)

1.8%Largest-city concentration · Pune

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

2,013

11-50

2,309

51-200

926

201-500

193

501-1,000

1,001-5,000

5,001-10,000

10001+

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 treatment 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.
Coverage: 32 countries, largest first: India, the United States, Italy, Brazil, Germany, Türkiye, the United Kingdom, Spain, France, Canada and 22 more. Country and city lists for wastewater treatment equipment manufacturers are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “wastewater treatment 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 wastewater treatment 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 wastewater treatment equipment manufacturers, 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, 20,073 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.

Wastewater treatment equipment manufacturers by location

35 lists · largest first

Every Wastewater treatment equipment manufacturers 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 treatment 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 wastewater treatment equipment manufacturers are there worldwide?

RevenueBase identified 5,571 wastewater treatment equipment manufacturers 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?

ION Exchange India LTD, headquartered in Mumbai, tops this list with the largest team on record.

Which country has the most wastewater treatment equipment manufacturers?

India leads with 1,108 companies, followed by the United States (1,071) and Italy (369). Every wastewater treatment equipment manufacturers list by country and city is linked on this page.

Which city has the most wastewater treatment equipment manufacturers?

Pune leads with 103 headquartered companies, followed by Ahmedabad (85) and Chennai (78).

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 20,073 verified decision-maker contacts tracked across these 5,571 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.