Company lists · Data refreshed October 2026

Top 25 Water treatment contractors worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Oct 22, 2026 10,823 companies tracked

RevenueBase identified 10,823 company matches for water treatment contractors worldwide as of October 2026 and tracks 140,189 professional contacts across them, including 33,277 with verified work emails. The United States is the largest market and Pune the largest hub.

This list covers company matches for water treatment 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 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

10,823Companies

140,189Contacts tracked

33,277Verified emails

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The 25 largest water treatment contractors worldwide

Ranked by team size

Top 25 of 10,823 company matches for water treatment 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	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
9	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
10	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
11	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
12	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
13	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
14	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
15	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
16	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
17	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
18	Selwood LTD	Exact match	Eastleigh, United KingdomHQ recorded Oct 22, 2026	501-1,000	506 contacts →
	Exact match “Selwood is your trusted partner in mission-critical water handling, storage, and treatment solutions across the UK.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
19	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
20	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
21	3m	Exact match	Velika Gorica, CroatiaHQ recorded Oct 22, 2026	n/a	467 contacts →
	Exact match “Company for production,trading, dealership and services engineering for pool water, drinking, waste and industry water - desinfection - neutralization - softening - dosing -…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
22	GMB	Exact match	Opheusden, NetherlandsHQ recorded Oct 22, 2026	501-1,000	452 contacts →
	Exact match “Al ruim een halve eeuw zetten we ons in voor duurzame oplossingen op het gebied van waterkwaliteit, waterveiligheid, bio-energie en industriële bouw en infra.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
23	Grupo EP	Exact match	Guarulhos, BrazilHQ recorded Oct 22, 2026	501-1,000	446 contacts →
	Exact match “Identificamos e solucionamos problemas relacionados ao tratamento de água e efluentes, reúso, dessalinização e análises ambientais para indústrias, consultorias ambientais e…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
24	Waterleau	Exact match	Wespelaar, FranceHQ recorded Oct 22, 2026	201-500	417 contacts →
	Exact match “Waterleau is your partner in sustainable water stewardship.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
25	Kinetico Incorporated	Exact match	Newbury, OH, United KingdomHQ recorded Oct 22, 2026	201-500	392 contacts →
	Exact match “Founded in 1970, Kinetico pioneered the development of non-electric, fully automatic water treatment systems.” 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 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 10,823 water treatment contractors worldwide

See the full list, filter by size, metro and specialty, and access 33,277 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Water treatment contractors worldwide at a glance

As of Oct 22, 2026

23.7%Verified-email coverage

13.0Average contacts per company

11-50Median size (employees)

1.0%Largest-city concentration · Pune

Oct 22, 2026Page data refreshed

Companies by employee count

1-10

4,522

11-50

4,123

51-200

1,501

201-500

375

501-1,000

109

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 contractors are linked below.
What qualifies: Company records worldwide whose business descriptions match “water treatment 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 33,277 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 contractors by location

44 lists · largest first

Every Water treatment 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 contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many water treatment contractors are there worldwide?

RevenueBase identified 10,823 company matches for water treatment 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 contractors?

The United States leads with 2,045 companies, followed by India (1,257) and Brazil (445). Every water treatment contractors list by country and city is linked on this page.

Which city has the most water treatment contractors?

Pune leads with 111 company records, followed by Chennai (96) and Ahmedabad (88).

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 33,277 professional contacts with verified work emails tracked across these 10,823 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.

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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 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.