Company lists · Data refreshed September 2026

Top 25 Effluent treatment plant construction companies based in Canada

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

Compiled by the RevenueBase Data Team Data refreshed Sep 15, 2026 81 companies tracked

RevenueBase identified 81 effluent treatment plant construction companies headquartered in Canada as of September 2026 and tracks 1,896 professional contacts across them, including 975 with verified work emails. Calgary is the largest hub.

This list covers effluent treatment plant construction 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 15, 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 15, 2026 86% judged on-target in blind review

81Companies

1,896Contacts tracked

975Verified emails

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The 25 largest effluent treatment plant construction companies based in Canada

Ranked by team size

Top 25 of 81 effluent treatment plant construction companies based in Canada, ranked by team size, largest first. Data refreshed Sep 15, 2026. RevenueBase Smart Search rates how each company's information relates to effluent treatment plant construction 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	Partial evidence	Montreal, QC, CanadaHQ checked Sep 15, 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 15, 2026
2	Integrated Sustainability	Partial evidence	Calgary, AB, CanadaHQ checked Sep 15, 2026	51-200	115 contacts →
	Partial evidence “Integrated Sustainability is a performance infrastructure group providing advisory, design-build-supply, and operational expertise in water and wastewater treatment, water and…” Source: RevenueBase Database · checked Sep 15, 2026
3	NEXOM	Indirect evidence	Winnipeg, MB, CanadaHQ checked Sep 15, 2026	51-200	68 contacts →
	Indirect evidence “The wastewater industry has seen how nutrients and energy costs expose the limits of existing solutions.” Source: RevenueBase Database · checked Sep 15, 2026
4	Bennett Construction Group	Strong evidence	Millgrove, ON, CanadaHQ checked Sep 15, 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 15, 2026
5	AWC Water Solutions	Partial evidence	Langley, BC, CanadaHQ checked Sep 15, 2026	51-200	61 contacts →
	Partial 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 15, 2026
6	Stormtec Water Management	Partial evidence	Delta, BC, CanadaHQ checked Sep 15, 2026	51-200	60 contacts →
	Partial evidence “Established in 2003, Stormtec is the water management solutions company specializing in providing temporary and permanent industrial water treatment systems for sediment…” Source: RevenueBase Database · checked Sep 15, 2026
7	Tritech Group LTD	Partial evidence	Langley, BC, CanadaHQ checked Sep 15, 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 15, 2026
8	Filtrum Construction	Partial evidence	Québec, QC, CanadaHQ checked Sep 15, 2026	51-200	49 contacts →
	Partial evidence “As water and wastewater specialists, Filtrum Construction is a trusted partner to engineer and construct leading-edge, cost-effective solutions for industrial and municipal…” Source: RevenueBase Database · checked Sep 15, 2026
9	Napier-Reid LTD	Partial evidence	Aurora, ON, CanadaHQ checked Sep 15, 2026	11-50	45 contacts →
	Partial 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 15, 2026
10	H2flow	Partial evidence	Vaughan, ON, CanadaHQ checked Sep 15, 2026	11-50	43 contacts →
	Partial 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 15, 2026
11	Ovivo Filterboxx	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 15, 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 15, 2026
12	Mabarex	Partial evidence	Saint-laurent, QC, CanadaHQ checked Sep 15, 2026	11-50	35 contacts →
	Partial evidence “DESIGN / BUILT / OPERATE Mabarex is a water-treatment leader serving clients across Canada since 1983.” Source: RevenueBase Database · checked Sep 15, 2026
13	Continental Carbon Group	Partial evidence	Stoney Creek, ON, CanadaHQ checked Sep 15, 2026	11-50	35 contacts →
	Partial 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 15, 2026
14	Kontek Process Water Management	Indirect evidence	Burlington, ON, CanadaHQ checked Sep 15, 2026	11-50	34 contacts →
	Indirect 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 15, 2026
15	Waterloo Biofilter Systems INC	Indirect evidence	Guelph, ON, CanadaHQ checked Sep 15, 2026	11-50	32 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 15, 2026
16	ADI Systems, An Evoqua Brand	Strong evidence	Fredericton, NB, CanadaHQ checked Sep 15, 2026	51-200	28 contacts →
	Strong evidence “ADI® Systems, an Evoqua brand, has been specializing in the design and construction of industrial wastewater treatment systems for over 35 years.” Source: RevenueBase Database · checked Sep 15, 2026
17	BI Pure Water Canada INC	Strong evidence	Surrey, BC, CanadaHQ checked Sep 15, 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 15, 2026
18	Aslan Technologies INC	Indirect evidence	Burlington, ON, CanadaHQ checked Sep 15, 2026	11-50	19 contacts →
	Indirect evidence “Aslan Technologies is a design and manufacturing company COMMITTED TO THE PROVISION OF INNOVATIVE decentralized WATER AND ENERGY MANAGEMENT SOLUTIONS SINCE 1992.Aslan Technologies…” Source: RevenueBase Database · checked Sep 15, 2026
19	Baseline Constructors INC	Indirect evidence	Waterloo, ON, CanadaHQ checked Sep 15, 2026	11-50	15 contacts →
	Indirect evidence “Baseline Constructors Inc is a General Contractor in the water and wastewater industry based out of Waterloo, ON” Source: RevenueBase Database · checked Sep 15, 2026
20	Aqua Pure Technologies	Partial evidence	Calgary, AB, CanadaHQ checked Sep 15, 2026	1-10	11 contacts →
	Partial evidence “Aqua Pure Technologies is a privately owned Canadian company headquartered in Calgary, Alberta, delivering advanced water treatment solutions for industrial applications.” Source: RevenueBase Database · checked Sep 15, 2026
21	Waterworks Technologies INC	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 15, 2026	51-200	11 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 15, 2026
22	MSR Solutions INC	Indirect evidence	Victoria, BC, CanadaHQ checked Sep 15, 2026	11-50	9 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 15, 2026
23	Imausar INC	Indirect evidence	St-jérôme, CanadaHQ checked Sep 15, 2026	11-50	9 contacts →
	Indirect evidence “Fondée en 1995, Imausar Inc.” Source: RevenueBase Database · checked Sep 15, 2026
24	Groupe Mécano INC	Indirect evidence	Laval, QC, CanadaHQ checked Sep 15, 2026	11-50	8 contacts →
	Indirect evidence “Groupe Mécano est formé d’une équipe dont les membres œuvrent dans le domaine du traitement de l’eau depuis plus de 10 ans.” Source: RevenueBase Database · checked Sep 15, 2026
25	Ecofluid Systems INC	Partial evidence	Vancouver, BC, CanadaHQ checked Sep 15, 2026	1-10	8 contacts →
	Partial evidence “Since 1995, ECOfluid has provided over 150 advanced wastewater treatment systems throughout North America and the Caribbean, serving municipalities, private developments, resorts…” Source: RevenueBase Database · checked Sep 15, 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: effluent treatment plant construction 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 effluent treatment plant construction companies.
Partial evidence: Its own public description names part of effluent treatment plant construction companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name effluent treatment plant construction 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 81 effluent treatment plant construction companies based in Canada

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Effluent treatment plant construction companies based in Canada at a glance

As of Sep 15, 2026

51.4%Verified-email coverage

23.4Average contacts per company

11-50Median size (employees)

11.1%Largest-city concentration · Calgary

Sep 15, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 81 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 effluent treatment plant construction 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 “effluent treatment plant construction 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 effluent treatment plant construction 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 effluent treatment plant construction 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, 975 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 15, 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 effluent treatment plant construction 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 effluent treatment plant construction companies are there based in Canada?

RevenueBase identified 81 effluent treatment plant construction 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 effluent treatment plant construction companies?

Calgary leads with 9 headquartered companies, followed by Laval (4) and Surrey (4).

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 975 verified decision-maker contacts tracked across these 81 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 15, 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.