Company lists · Data refreshed October 2026

Top 25 Water treatment system contractors worldwide

Name: Water treatment system contractors worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 22, 2026 12,328 companies tracked

RevenueBase identified 12,328 company matches for water treatment system contractors worldwide as of October 2026 and tracks 167,428 professional contacts across them, including 38,549 with verified work emails. The United States is the largest market and Pune the largest hub.

This list covers company matches for water treatment system contractors worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 22, 2026. Country and city lists for water treatment system contractors follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Oct 22, 2026 How this list was built

12,328Companies

167,428Contacts tracked

38,549Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest water treatment system contractors worldwide

Ranked by team size

Top 25 of 12,328 company matches for water treatment system contractors worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 22, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Solenis	Exact match	Wilmington, DE, United StatesHQ recorded Oct 22, 2026	10001+	6,565 contacts →
	Exact match “Solenis is a leading global provider of water and hygiene solutions.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
2	ION Exchange India LTD	Exact match	Mumbai, IndiaHQ recorded Oct 22, 2026	1,001-5,000	3,859 contacts →
	Exact match “At Ion Exchange India, we bring you total environment solutions - water treatment, liquid waste treatment & recycle, air pollution control, solid & hazardous waste management and…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
3	VA Tech Wabag LTD	Exact match	Wabag House, IndiaHQ recorded Oct 22, 2026	1,001-5,000	2,412 contacts →
	Exact match “WABAG, a global leader in the water industry, is backed by rich experience spanning over 100 years.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
4	MPW Industrial Services	Exact match	Hebron, OH, PalestineHQ recorded Oct 22, 2026	1,001-5,000	1,518 contacts →
	Exact match “As the leading provider of integrated, technology-based industrial cleaning, water purification, facility management, and total waste services in North America, MPW assists in…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
5	Chemtreat	Exact match	Glen Allen, VA, United StatesHQ recorded Oct 22, 2026	1,001-5,000	1,475 contacts →
	Exact match “At ChemTreat, we understand that water is a vital resource for our planet.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
6	Kurita Group	Exact match	Tokyo, JapanHQ recorded Oct 22, 2026	5,001-10,000	1,433 contacts →
	Exact match “For more than 70 years, since its founding in 1949, Kurita Water Industries has been consistently operating in two areas of "water and the environment." Kurita Group provides…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
7	Volvo Eicher Commerical Vehical Limited	Exact match	Dhar, IndiaHQ recorded Oct 22, 2026	n/a	1,155 contacts →
	Exact match “Volvo Eicher Commerical Vehical Limited Service Provider of waste water recycling systems, drinking water plant & industrial water treatment in Indore, Madhya Pradesh.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
8	Aquatech	Exact match	Canonsburg, PA, United StatesHQ recorded Oct 22, 2026	501-1,000	968 contacts →
	Exact match “Aquatech enables the world's most recognized companies to solve complex challenges in water reuse, desalination, minimal and zero liquid discharge, and critical minerals…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
9	MWH Treatment	Exact match	Stockport, United KingdomHQ recorded Oct 22, 2026	1,001-5,000	930 contacts →
	Exact match “MWH Treatment is a leading Design and Build non-infrastructure solution provider in the UK water sector, with a water sector heritage dating back to 1820.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
10	Chem-Aqua, INC	Exact match	Wilmington, DE, United StatesHQ recorded Oct 22, 2026	10001+	901 contacts →
	Exact match “Chem-Aqua is a unique combination of knowledge, experience and stability.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
11	Gradiant	Exact match	Woburn, MA, United StatesHQ recorded Oct 22, 2026	1,001-5,000	874 contacts →
	Exact match “Gradiant is a Different Kind of Water Company.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
12	OVIVO	Exact match	Montreal, QC, CanadaHQ recorded Oct 22, 2026	501-1,000	839 contacts →
	Exact match “Ovivo is a powerful global brand, uniting world-renowned trademarks and a highly specialized team of 700 water treatment experts operating across the globe.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
13	Evides Waterbedrijf	Exact match	Rotterdam, NetherlandsHQ recorded Oct 22, 2026	501-1,000	817 contacts →
	Exact match “Duurzaam, innovatief en in verbinding met de omgeving; zo werkt Evides Waterbedrijf.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
14	Trojan Technologies	Exact match	London, ON, CanadaHQ recorded Oct 22, 2026	501-1,000	737 contacts →
	Exact match “Our Vision To continuously advance water treatment, ensuring everyone has access to clean water, globally.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
15	Ceco Environmental Corporation	Exact match	Addison, TX, United StatesHQ recorded Oct 22, 2026	1,001-5,000	692 contacts →
	Exact match “CECO Environmental is a leading environmentally focused, diversified industrial company whose solutions protect people, the environment, and industrial equipment across the globe…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
16	Grupo Bauminas	Exact match	Cataguazes, BrazilHQ recorded Oct 22, 2026	1,001-5,000	685 contacts →
	Exact match “Sobre a BAUMINAS Fundada há mais de 60 anos, a BAUMINAS é uma empresa orgulhosamente nacional, com ampla experiência na fabricação de produtos para o tratamento de águas e tem…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
17	Culligan France	Exact match	Versailles, FranceHQ recorded Oct 22, 2026	1,001-5,000	674 contacts →
	Exact match “Spécialiste du traitement de l’eau depuis plus de 80 ans, Culligan apporte chaque jour une eau de qualité aux particuliers, aux entreprises et aux collectivités.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
18	IDE Technologies	Exact match	Kadima, IsraelHQ recorded Oct 22, 2026	501-1,000	626 contacts →
	Exact match “A world leader in water treatment solutions, IDE specializes in the development, engineering, construction and operation of enhanced desalination and industrial water treatment…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
19	Nijhuis Saur Industries	Exact match	Doetinchem, NetherlandsHQ recorded Oct 22, 2026	1,001-5,000	578 contacts →
	Exact match “Founded in 1904, Nijhuis Saur Industries provides solid and adaptive solutions for sustainable and resilient water use, energy- and resource recovery.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
20	Westech Engineering	Exact match	Salt Lake City, UT, United StatesHQ recorded Oct 22, 2026	501-1,000	577 contacts →
	Exact match “WesTech Engineering, LLC designs, engineers, and manufactures water and wastewater treatment process equipment for mineral, industrial, and municipal applications worldwide.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
21	BWT France	Exact match	Saint - Denis, FranceHQ recorded Oct 22, 2026	501-1,000	576 contacts →
	Exact match “BWT France is one of the largest subsidiaries of Austrian group Best Water Technology ( BWT), the European leader in water treatment.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
22	AGS Water Solutions	Exact match	Oeiras, PortugalHQ recorded Oct 22, 2026	51-200	537 contacts →
	Exact match “AGS – Administração e Gestão de Sistemas de Salubridade, SA focuses on the preservation of the environment, acting throughout the entire water cycle.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
23	GS Inima Brasil	Exact match	Sao Paulo, BrazilHQ recorded Oct 22, 2026	1,001-5,000	505 contacts →
	Exact match “A GS Inima Brasil é uma das maiores e mais respeitadas companhias privadas de saneamento do país, oferecendo soluções inovadoras e integradas.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
24	Eden Springs	Exact match	Barcelona, SpainHQ recorded Oct 22, 2026	1,001-5,000	500 contacts →
	Exact match “Eden, a proud part of the Culligan family, provides instant access to cleaner, safer, and better-tasting water through our unparalleled expertise in sustainability, science, and…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
25	Culligan Italiana S.P.A	Exact match	Bologna, ItalyHQ recorded Oct 22, 2026	201-500	477 contacts →
	Exact match “Culligan Italiana è in grado di offrire la soluzione ideale per ogni tipologia di trattamento acqua: piccoli impianti ad uso domestico, erogatori d'acqua per uffici e ristoranti…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “water treatment system contractors”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 12,328 water treatment system contractors worldwide

See the full list, filter by size, metro and specialty, and access 38,549 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Water treatment system contractors worldwide at a glance

As of Oct 22, 2026

23.0%Verified-email coverage

13.6Average contacts per company

11-50Median size (employees)

1.0%Largest-city concentration · Pune

Oct 22, 2026Page data refreshed

Companies by employee count

1-10

5,132

11-50

4,651

51-200

1,737

201-500

444

501-1,000

127

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for water treatment system contractors are linked below.
What qualifies: Company records worldwide whose business descriptions match “water treatment system contractors” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 38,549 professional contacts with verified work emails across the full matched dataset. 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 October 22, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Water treatment system contractors by location

51 lists · largest first

Every Water treatment system contractors 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 SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “water treatment system contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many water treatment system contractors are there worldwide?

RevenueBase identified 12,328 company matches for water treatment system contractors worldwide as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Solenis tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most water treatment system contractors?

The United States leads with 2,273 companies, followed by India (1,413) and Brazil (530). Every water treatment system contractors list by country and city is linked on this page.

Which city has the most water treatment system contractors?

Pune leads with 121 company records, followed by Chennai (108) and Ahmedabad (106).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 38,549 professional contacts with verified work emails tracked across these 12,328 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 22, 2026.

Ready to reach these companies? Verified emails and direct dials for all 12,328 water treatment system contractors worldwide. Start with a free account, no credit card.

Download this list →

Related lists

Browse the directory

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 SmartSearch, 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.