Company lists · Data refreshed September 2026

Top 25 Chemical treatment facility builders worldwide

Name: Chemical treatment facility builders worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 6,530 companies tracked

RevenueBase identified 6,530 chemical treatment facility builders worldwide as of September 2026 and tracks 99,178 professional contacts across them, including 23,493 with verified work emails and 0 with mobile numbers. India is the largest market and Pune the largest hub.

This list covers chemical treatment facility builders 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 16, 2026. Country and city lists for chemical treatment facility builders 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 16, 2026 86% judged on-target in blind review

6,530Companies

99,178Contacts tracked

23,493Verified emails

0Mobile numbers

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

The 25 largest chemical treatment facility builders worldwide

Ranked by team size

Top 25 of 6,530 chemical treatment facility builders worldwide, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to chemical treatment facility builders: 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 16, 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 16, 2026
2	VA Tech Wabag LTD	Indirect evidence	Wabag House, IndiaHQ checked Sep 16, 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 16, 2026
3	MPW Industrial Services	Partial evidence	Hebron, OH, PalestineHQ checked Sep 16, 2026	1,001-5,000	1,485 contacts →
	Partial evidence “As the leading provider of integrated, technology-based industrial cleaning, water purification, facility management, and total waste services in North America, MPW assists in…” Source: RevenueBase Database · checked Sep 16, 2026
4	Chemtreat	Indirect evidence	Glen Allen, VA, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,404 contacts →
	Indirect evidence “At ChemTreat, we understand that water is a vital resource for our planet.” Source: RevenueBase Database · checked Sep 16, 2026
5	Volvo Eicher Commerical Vehical Limited	Partial evidence	Dhar, IndiaHQ checked Sep 16, 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 16, 2026
6	Aquatech	Indirect evidence	Canonsburg, PA, United StatesHQ checked Sep 16, 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 16, 2026
7	MWH Treatment	Partial evidence	Stockport, United KingdomHQ checked Sep 16, 2026	1,001-5,000	879 contacts →
	Partial evidence “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.” Source: RevenueBase Database · checked Sep 16, 2026
8	OVIVO	Partial evidence	Montreal, QC, CanadaHQ checked Sep 16, 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 16, 2026
9	Trojan Technologies	Partial evidence	London, ON, CanadaHQ checked Sep 16, 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 16, 2026
10	Nijhuis Saur Industries	Indirect evidence	Doetinchem, NetherlandsHQ checked Sep 16, 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 16, 2026
11	BWT France	Partial evidence	Saint - Denis, FranceHQ checked Sep 16, 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 16, 2026
12	Westech Engineering	Partial evidence	Salt Lake City, UT, United StatesHQ checked Sep 16, 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 16, 2026
13	AGS Water Solutions	Indirect evidence	Paço De Arcos, PortugalHQ checked Sep 16, 2026	51-200	502 contacts →
	Indirect evidence “AGS – Administração e Gestão de Sistemas de Salubridade, SA focuses on the preservation of the environment, acting throughout the entire water cycle.” Source: RevenueBase Database · checked Sep 16, 2026
14	RSE	Indirect evidence	Inverness Highlands, United KingdomHQ checked Sep 16, 2026	501-1,000	498 contacts →
	Indirect 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 16, 2026
15	Culligan Italiana S.P.A	Indirect evidence	Bologna, ItalyHQ checked Sep 16, 2026	201-500	489 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 16, 2026
16	GMB	Indirect evidence	Opheusden, NetherlandsHQ checked Sep 16, 2026	501-1,000	435 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 16, 2026
17	Grupo EP	Indirect evidence	Guarulhos, BrazilHQ checked Sep 16, 2026	501-1,000	434 contacts →
	Indirect evidence “Identificamos e solucionamos problemas relacionados ao tratamento de água e efluentes, reúso, dessalinização e análises ambientais para indústrias, consultorias ambientais e…” Source: RevenueBase Database · checked Sep 16, 2026
18	Waterleau	Indirect evidence	Wespelaar, FranceHQ checked Sep 16, 2026	201-500	411 contacts →
	Indirect evidence “Waterleau is your partner in sustainable water stewardship.” Source: RevenueBase Database · checked Sep 16, 2026
19	UCC Environmental	Partial evidence	Waukegan, IL, United StatesHQ checked Sep 16, 2026	201-500	389 contacts →
	Partial 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 16, 2026
20	Chembond Chemicals Limited	Partial evidence	Navi Mumbai, IndiaHQ checked Sep 16, 2026	501-1,000	371 contacts →
	Partial evidence “Established in 1974, Chembond is a leading Indian specialty chemical company headquartered in Navi Mumbai.” Source: RevenueBase Database · checked Sep 16, 2026
21	Fisia Italimpianti	Indirect evidence	Genova, ItalyHQ checked Sep 16, 2026	51-200	362 contacts →
	Indirect evidence “Fisia Italimpianti S.p.A, part of Webuild Group (the new group born in 2020 from Salini Impregilo), is a worldwide leader in the sustainable design and execution of water…” Source: RevenueBase Database · checked Sep 16, 2026
22	Proxa Water	Partial evidence	Woodmead, South AfricaHQ checked Sep 16, 2026	201-500	358 contacts →
	Partial 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 16, 2026
23	L&t	Partial evidence	Chennai, IndiaHQ checked Sep 16, 2026	5,001-10,000	350 contacts →
	Partial 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 16, 2026
24	Abdullah Ibrahim AL Sayegh And Sons Company	Indirect evidence	Riyadh, Saudi ArabiaHQ checked Sep 16, 2026	1,001-5,000	347 contacts →
	Indirect evidence “Established in 1964, Abdullah Ibrahim Al Sayegh and Sons Company a Closed Joint Stock Co.” Source: RevenueBase Database · checked Sep 16, 2026
25	Grupo Opersan	Indirect evidence	Barueri, BrazilHQ checked Sep 16, 2026	201-500	340 contacts →
	Indirect evidence “Com mais de 40 anos de experiência, a Opersan é uma empresa brasileira que oferece ao mercado corporativo soluções completas para a gestão de águas e efluentes.” Source: RevenueBase Database · checked Sep 16, 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: chemical treatment facility builders. 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 chemical treatment facility builders.
Partial evidence: Its own public description names part of chemical treatment facility builders, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name chemical treatment facility builders. 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 6,530 chemical treatment facility builders worldwide

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 23,493 reachable decision-makers.

Free signup · no credit card

View the full list →

Chemical treatment facility builders worldwide at a glance

As of Sep 16, 2026

23.7%Verified-email coverage

15.2Average contacts per company

11-50Median size (employees)

1.8%Largest-city concentration · Pune

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

2,367

11-50

2,644

51-200

1,095

201-500

245

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 chemical treatment facility builders, 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: 36 countries, largest first: India, the United States, Brazil, Italy, Türkiye, Spain, Germany, the United Kingdom, Mexico, France and 26 more. Country and city lists for chemical treatment facility builders are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “chemical treatment facility builders”. 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 chemical treatment facility builders), 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 chemical treatment facility builders, 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, 23,493 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 16, 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.

Chemical treatment facility builders by location

41 lists · largest first

Every Chemical treatment facility builders 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 chemical treatment facility builders, 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 chemical treatment facility builders are there worldwide?

RevenueBase identified 6,530 chemical treatment facility builders 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 chemical treatment facility builders?

India leads with 1,255 companies, followed by the United States (863) and Brazil (495). Every chemical treatment facility builders list by country and city is linked on this page.

Which city has the most chemical treatment facility builders?

Pune leads with 118 headquartered companies, followed by Chennai (88) and Ahmedabad (83).

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 23,493 verified decision-maker contacts tracked across these 6,530 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 16, 2026.

Ready to reach these companies? Verified emails and direct dials for all 6,530 chemical treatment facility builders 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 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.