Company lists · Data refreshed September 2026

Top 25 Municipal water treatment contractors based in Canada

Name: Municipal water treatment contractors based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 221 companies tracked

RevenueBase identified 221 municipal water treatment contractors headquartered in Canada as of September 2026 and tracks 4,178 professional contacts across them, including 1,907 with verified work emails. Calgary is the largest hub.

This list covers municipal water treatment contractors 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 17, 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 17, 2026 86% judged on-target in blind review

221Companies

4,178Contacts tracked

1,907Verified emails

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The 25 largest municipal water treatment contractors based in Canada

Ranked by team size

Top 25 of 221 municipal water treatment contractors based in Canada, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to municipal water treatment contractors: 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 17, 2026	501-1,000	829 contacts →
	Strong 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 17, 2026
2	Trojan Technologies	Strong evidence	London, ON, CanadaHQ checked Sep 17, 2026	501-1,000	716 contacts →
	Strong evidence “Our Vision To continuously advance water treatment, ensuring everyone has access to clean water, globally.” Source: RevenueBase Database · checked Sep 17, 2026
3	Ontario Clean Water Agency	Partial evidence	Mississauga, ON, CanadaHQ checked Sep 17, 2026	501-1,000	662 contacts →
	Partial evidence “Water is one of our most precious resources.” Source: RevenueBase Database · checked Sep 17, 2026
4	Clearford	Strong evidence	Ottawa, ON, CanadaHQ checked Sep 17, 2026	51-200	86 contacts →
	Strong evidence “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: RevenueBase Database · checked Sep 17, 2026
5	Bionest	Indirect evidence	Shawinigan, QC, CanadaHQ checked Sep 17, 2026	51-200	80 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 17, 2026
6	Kent Water Purification Systems INC	Partial evidence	Missisauga, ON, CanadaHQ checked Sep 17, 2026	n/a	78 contacts →
	Partial evidence “Kent Water Purification Systems is a leading supplier of water purification systems in the Greater Toronto Area.” Source: RevenueBase Database · checked Sep 17, 2026
7	Bennett Construction Group	Strong evidence	Millgrove, ON, CanadaHQ checked Sep 17, 2026	51-200	63 contacts →
	Strong evidence “Bennett Construction Group has specialized in the construction of Water and Wastewater treatment facilities for over 40 years.” Source: RevenueBase Database · checked Sep 17, 2026
8	AWC Water Solutions	Strong evidence	Langley, BC, CanadaHQ checked Sep 17, 2026	51-200	61 contacts →
	Strong evidence “AWC Water Solutions designs, manufactures, and integrates water and wastewater treatment systems for a variety of municipal and industrial applications.” Source: RevenueBase Database · checked Sep 17, 2026
9	Tritech Group LTD	Partial evidence	Langley, BC, CanadaHQ checked Sep 17, 2026	51-200	56 contacts →
	Partial evidence “Tritech is an industry leader in integrated design, project management, and construction services for water and wastewater infrastructure projects.” Source: RevenueBase Database · checked Sep 17, 2026
10	Aquatech Canadian Water Services INC	Partial evidence	Cochrane, AB, CanadaHQ checked Sep 17, 2026	51-200	54 contacts →
	Partial evidence “At Aquatech Canadian Water Services Inc, we are dedicated to empowering communities, cities, and industries to achieve their water services goals.” Source: RevenueBase Database · checked Sep 17, 2026
11	AWI	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	11-50	50 contacts →
	Indirect evidence “At AWI we focus on granular media potable and wastewater filtration.” Source: RevenueBase Database · checked Sep 17, 2026
12	LE Groupe Nordmec	Partial evidence	Mont-tremblant, QC, CanadaHQ checked Sep 17, 2026	201-500	46 contacts →
	Partial evidence “Bâtir des infrastructures durables pour le traitement des eaux du secteur municipal, industriel et minier, en œuvrant au bénéfice de l’environnement pour les générations futures.” Source: RevenueBase Database · checked Sep 17, 2026
13	Napier-Reid LTD	Strong evidence	Aurora, ON, CanadaHQ checked Sep 17, 2026	11-50	45 contacts →
	Strong evidence “About Us Napier-Reid is a leading water and wastewater treatment solutions company with an established reputation for design innovation and manufacturing excellence.” Source: RevenueBase Database · checked Sep 17, 2026
14	Delco Water, A Division Of Delco Automation	Strong evidence	Saskatoon, SK, CanadaHQ checked Sep 17, 2026	51-200	44 contacts →
	Strong evidence “Delco Water, a division of Delco Automation Inc, is a premier water treatment solutions provider and equipment integrator.” Source: RevenueBase Database · checked Sep 17, 2026
15	H2flow	Strong evidence	Vaughan, ON, CanadaHQ checked Sep 17, 2026	11-50	43 contacts →
	Strong evidence “Water & Wastewater Treatment Equipment sales & service for industrial & municipal applications: grinders, screens, conveyors, SBRs, grit removal, aerators, diffusers, blowers…” Source: RevenueBase Database · checked Sep 17, 2026
16	Ovivo Filterboxx	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	51-200	41 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 17, 2026
17	Mabarex	Strong evidence	Saint-laurent, QC, CanadaHQ checked Sep 17, 2026	11-50	35 contacts →
	Strong evidence “DESIGN / BUILT / OPERATE Mabarex is a water-treatment leader serving clients across Canada since 1983.” Source: RevenueBase Database · checked Sep 17, 2026
18	Continental Carbon Group	Strong evidence	Stoney Creek, ON, CanadaHQ checked Sep 17, 2026	11-50	35 contacts →
	Strong evidence “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: RevenueBase Database · checked Sep 17, 2026
19	Kontek Process Water Management	Partial evidence	Burlington, ON, CanadaHQ checked Sep 17, 2026	11-50	34 contacts →
	Partial evidence “Kontek Process Water Management is a well-established privately owned Canadian company with primary offices and manufacturing facilities located in Burlington, Ontario, Canada.” Source: RevenueBase Database · checked Sep 17, 2026
20	Pure H2o	Indirect evidence	Quebec, QC, CanadaHQ checked Sep 17, 2026	11-50	26 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 17, 2026
21	Streamgo Water Solutions INC	Partial evidence	Hamilton, ON, CanadaHQ checked Sep 17, 2026	51-200	25 contacts →
	Partial evidence “StreamGo is a full-service water company whose mission is safe, unlimited and economical water without impact to the environment.” Source: RevenueBase Database · checked Sep 17, 2026
22	BGL Contractors Corp	Partial evidence	Waterloo, ON, CanadaHQ checked Sep 17, 2026	11-50	24 contacts →
	Partial evidence “We are a multi-trade contractor with our head office located in Waterloo, Ontario.” Source: RevenueBase Database · checked Sep 17, 2026
23	WMC Water Management	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 17, 2026	11-50	24 contacts →
	Partial evidence “WMC Water Management specializes in the optimization of heating and cooling systems within large commercial, residential, industrial, and institutional buildings.” Source: RevenueBase Database · checked Sep 17, 2026
24	Homewater	Partial evidence	Toronto, ON, CanadaHQ checked Sep 17, 2026	51-200	22 contacts →
	Partial evidence “We believe that clean, healthy water is a basic human need - not a luxury.” Source: RevenueBase Database · checked Sep 17, 2026
25	BI Pure Water Canada INC	Strong evidence	Surrey, BC, CanadaHQ checked Sep 17, 2026	11-50	21 contacts →
	Strong evidence “BI Pure Water’s pre-assembled compact water and wastewater treatment plants are renowned for their cost-effective and reliable performance.” Source: RevenueBase Database · checked Sep 17, 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: municipal water treatment contractors. 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 municipal water treatment contractors.
Partial evidence: Its own public description names part of municipal water treatment contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name municipal water treatment contractors. 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 221 municipal water treatment contractors based in Canada

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Municipal water treatment contractors based in Canada at a glance

As of Sep 17, 2026

45.6%Verified-email coverage

18.9Average contacts per company

1-10Median size (employees)

7.7%Largest-city concentration · Calgary

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

114

11-50

51-200

201-500

501-1,000

Email recency for this list is measured worldwide rather than for Canada, so it is reported there. Company counts and contact totals on this page are exact for Canada, over 221 companies.

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 municipal water treatment contractors, 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 “municipal water treatment contractors”. 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 municipal water treatment contractors), 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 municipal water treatment contractors, 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, 1,907 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 17, 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.

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 municipal water treatment contractors, 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 municipal water treatment contractors are there based in Canada?

RevenueBase identified 221 municipal water treatment contractors 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 municipal water treatment contractors?

Calgary leads with 17 headquartered companies, followed by Mississauga (8) and Burlington (7).

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 1,907 verified decision-maker contacts tracked across these 221 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 17, 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.