Company lists · Data refreshed September 2026

Top 25 Water treatment companies based in Canada

Name: Water treatment companies based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 7, 2026 331 companies tracked

RevenueBase identified 331 water treatment companies headquartered in Canada as of September 2026 and tracks 4,410 professional contacts across them, including 1,935 with verified work emails and 474 with mobile numbers. Calgary is the largest hub.

This list covers water treatment companies headquartered in Canada, 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 7, 2026.

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 7, 2026 86% judged on-target in blind review

331Companies

4,410Contacts tracked

1,935Verified emails

474Mobile numbers

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The 25 largest water treatment companies based in Canada

Ranked by team size

Top 25 of 331 water treatment companies based in Canada, ranked by team size, largest first. Data refreshed Sep 7, 2026. RevenueBase Smart Search rates how each company's information relates to water treatment 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	OVIVO	Strong evidence	Montreal, QC, CanadaHQ checked Sep 7, 2026	501-1,000	829 contacts →
	“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: company website · checked Sep 7, 2026
2	Trojan Technologies	Strong evidence	London, ON, CanadaHQ checked Sep 7, 2026	501-1,000	716 contacts →
	“Our Vision To continuously advance water treatment, ensuring everyone has access to clean water, globally.” Source: company website · checked Sep 7, 2026
3	Magnus	Strong evidence	Boucherville, QC, CanadaHQ checked Sep 7, 2026	51-200	128 contacts →
	“Magnus designs and delivers chemical, mechanical and technological water treatment solutions, industrial fluids, equipment, and technical services across North America and Europe.” Source: company website · checked Sep 7, 2026
4	Canature Watergroup	Strong evidence	Regina, SK, CanadaHQ checked Sep 7, 2026	201-500	119 contacts →
	“Canature WaterGroup™ is a dynamic leader in the North American water treatment industry.” Source: company website · checked Sep 7, 2026
5	Fil-Trek Corporation	Indirect evidence	Cambridge, ON, CanadaHQ checked Sep 7, 2026	51-200	93 contacts →
	“Fil-Trek is a comprehensive industrial filtration manufacturer located in Cambridge, Ontario, Canada.” Source: company website · checked Sep 7, 2026
6	Clearford	Strong evidence	Ottawa, ON, CanadaHQ checked Sep 7, 2026	51-200	86 contacts →
	“Clearford delivers optimized smart treatment solutions for communities of all sizes, when and where you need them, high performance water and wastewater treatment plus all of the…” Source: company website · checked Sep 7, 2026
7	Bionest	Indirect evidence	Shawinigan, QC, CanadaHQ checked Sep 7, 2026	51-200	80 contacts →
	“Spécialiste dans le développement et la commercialisation de systèmes avancés d'épuration des eaux usées, Bionest offre des systèmes dont les performances inégalées permettent de…” Source: company website · checked Sep 7, 2026
8	Kent Water Purification Systems INC	Partial evidence	Missisauga, ON, CanadaHQ checked Sep 7, 2026	n/a	78 contacts →
	“Kent Water Purification Systems is a leading supplier of water purification systems in the Greater Toronto Area.” Source: company website · checked Sep 7, 2026
9	Pace Solutions Corp	Strong evidence	Delta, BC, CanadaHQ checked Sep 7, 2026	51-200	61 contacts →
	“Water Treatment Leader in Water & Energy Conservation.” Source: company website · checked Sep 7, 2026
10	AWC Water Solutions	Strong evidence	Langley, BC, CanadaHQ checked Sep 7, 2026	51-200	61 contacts →
	“AWC Water Solutions designs, manufactures, and integrates water and wastewater treatment systems for a variety of municipal and industrial applications.” Source: company website · checked Sep 7, 2026
11	Stormtec Water Management	Strong evidence	Delta, BC, CanadaHQ checked Sep 7, 2026	51-200	60 contacts →
	“Established in 2003, Stormtec is the water management solutions company specializing in providing temporary and permanent industrial water treatment systems for sediment…” Source: company website · checked Sep 7, 2026
12	AWI	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 7, 2026	11-50	50 contacts →
	“At AWI we focus on granular media potable and wastewater filtration.” Source: company website · checked Sep 7, 2026
13	Luminor Environmental INC	Indirect evidence	Guelph, ON, CanadaHQ checked Sep 7, 2026	51-200	48 contacts →
	Source: company website · checked Sep 7, 2026
14	Napier-Reid LTD	Strong evidence	Aurora, ON, CanadaHQ checked Sep 7, 2026	11-50	45 contacts →
	“About Us Napier-Reid is a leading water and wastewater treatment solutions company with an established reputation for design innovation and manufacturing excellence.” Source: company website · checked Sep 7, 2026
15	Delco Water, A Division Of Delco Automation	Strong evidence	Saskatoon, SK, CanadaHQ checked Sep 7, 2026	51-200	44 contacts →
	“Delco Water, a division of Delco Automation Inc, is a premier water treatment solutions provider and equipment integrator.” Source: company website · checked Sep 7, 2026
16	H2flow	Strong evidence	Vaughan, ON, CanadaHQ checked Sep 7, 2026	11-50	43 contacts →
	“Water & Wastewater Treatment Equipment sales & service for industrial & municipal applications: grinders, screens, conveyors, SBRs, grit removal, aerators, diffusers, blowers…” Source: company website · checked Sep 7, 2026
17	Ovivo Filterboxx	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 7, 2026	51-200	41 contacts →
	“Based in Alberta, Canada, FilterBoxx is a renowned leader in the design and supply of modular waterIntroPage and wastewater solutions for a wide array of industrial customers.” Source: company website · checked Sep 7, 2026
18	Vytal Filtration Technologies	Indirect evidence	Edmonton, AB, CanadaHQ checked Sep 7, 2026	51-200	38 contacts →
	“Vytal Filtration Technologies delivers unparalleled filtration solutions.” Source: company website · checked Sep 7, 2026
19	Mabarex	Strong evidence	Saint-laurent, QC, CanadaHQ checked Sep 7, 2026	11-50	35 contacts →
	“DESIGN / BUILT / OPERATE Mabarex is a water-treatment leader serving clients across Canada since 1983.” Source: company website · checked Sep 7, 2026
20	Continental Carbon Group	Strong evidence	Stoney Creek, ON, CanadaHQ checked Sep 7, 2026	11-50	35 contacts →
	“SERVICES, PRODUCTS AND EXPERTISE IN THE WATER TREATMENT INDUSTRY Continental Carbon Group offers a wide range of products, services and expertise in the water and wastewater…” Source: company website · checked Sep 7, 2026
21	Kontek Process Water Management	Partial evidence	Burlington, ON, CanadaHQ checked Sep 7, 2026	11-50	34 contacts →
	“Kontek Process Water Management is a well-established privately owned Canadian company with primary offices and manufacturing facilities located in Burlington, Ontario, Canada.” Source: company website · checked Sep 7, 2026
22	Bishop Water	Partial evidence	Arnprior, ON, CanadaHQ checked Sep 7, 2026	11-50	32 contacts →
	“Bishop Water provides simple, reliable nutrient removal and solids management solutions that enable communities and industries to affordably solve water and wastewater challenges…” Source: company website · checked Sep 7, 2026
23	In-Store Water Systems INC	Partial evidence	Toronto, ON, CanadaHQ checked Sep 7, 2026	51-200	32 contacts →
	“Water Solutions for Grocery and Foodservice In-Store Water Systems is a Canadian company specializing in drinking water solutions for retail water and foodservice.” Source: company website · checked Sep 7, 2026
24	Watergroup	Strong evidence	Cambridge, ON, CanadaHQ checked Sep 7, 2026	51-200	27 contacts →
	“Since 1968, WaterGroup has manufactured and distributed water treatment and pump products across Canada and the USA.” Source: company website · checked Sep 7, 2026
25	Pure H2o	Indirect evidence	Quebec, QC, CanadaHQ checked Sep 7, 2026	11-50	26 contacts →
	“Fondée en 2010, par Michel Blais (depuis 25 ans en affaire) et Antoine Élias (20 ans d`expérience en traitement d`eau), l`entreprise se spécialise dans l`installation de systèmes…” Source: company website · checked Sep 7, 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: water treatment 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 water treatment companies.
Partial evidence: Its own public description names part of water treatment companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name water treatment 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 331 water treatment companies based in Canada

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Water treatment companies based in Canada at a glance

As of Sep 7, 2026

43.9%Verified-email coverage

10.7%Mobile-number coverage

13.3Average contacts per company

1-10Median size (employees)

7.9%Largest-city concentration · Calgary

Sep 7, 2026Page data refreshed

Companies by employee count

1-10

177

11-50

102

51-200

201-500

501-1,000

1,001-5,000

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

1,8080–30

11431–60

161–90

190–180

11180+

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 water treatment 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.
What qualifies: Companies headquartered in Canada whose own description of what they do matches “water treatment 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 water treatment 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 water treatment companies, and records with no verified work email. Companies headquartered outside Canada are excluded even when they keep an office there.
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, 1,935 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 7, 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.

Water treatment companies by metro

Water treatment companies in Calgary26

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 water treatment 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 water treatment companies are there based in Canada?

RevenueBase identified 331 water treatment companies headquartered in Canada 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?

OVIVO, headquartered in Montreal, tops this list with the largest team on record.

Which city has the most water treatment companies?

Calgary leads with 26 headquartered companies, followed by Mississauga (13) and Montreal (13).

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 1,935 verified decision-maker contacts tracked across these 331 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 7, 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.