Company lists · Data refreshed September 2026

Top 25 Wastewater treatment plant contractors based in Canada

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

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 154 companies tracked

RevenueBase identified 154 company matches for wastewater treatment plant contractors associated with Canada as of September 2026 and tracks 4,332 professional contacts across them, including 2,257 with verified work emails. Calgary is the largest hub.

This list covers company matches for wastewater treatment plant contractors associated with Canada, 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 September 19, 2026.

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 Sep 19, 2026 How this list was built

154Companies

4,332Contacts tracked

2,257Verified emails

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

The 25 largest wastewater treatment plant contractors based in Canada

Ranked by team size

Top 25 of 154 company matches for wastewater treatment plant contractors based in Canada, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 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	OVIVO	Exact match	Montreal, QC, CanadaHQ recorded Sep 19, 2026	501-1,000	829 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 · Sep 19, 2026 · View company records in RevenueBase
2	Trojan Technologies	Exact match	London, ON, CanadaHQ recorded Sep 19, 2026	501-1,000	716 contacts →
	Exact match “Our Vision To continuously advance water treatment, ensuring everyone has access to clean water, globally.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3	Ontario Clean Water Agency	Exact match	Mississauga, ON, CanadaHQ recorded Sep 19, 2026	501-1,000	662 contacts →
	Exact match “Water is one of our most precious resources.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4	Blumetric	Exact match	Ottawa, ON, CanadaHQ recorded Sep 19, 2026	201-500	210 contacts →
	Exact match “Since 1976, BluMetric has been delivering innovative and sustainable solutions to complex environmental challenges.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5	Integrated Sustainability	Exact match	Calgary, AB, CanadaHQ recorded Sep 19, 2026	51-200	115 contacts →
	Exact match “Integrated Sustainability is a performance infrastructure group providing advisory, design-build-supply, and operational expertise in water and wastewater treatment, water and…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6	Clearford	Exact match	Ottawa, ON, CanadaHQ recorded Sep 19, 2026	51-200	86 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7	Bionest	Exact match	Shawinigan, QC, CanadaHQ recorded Sep 19, 2026	51-200	80 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8	NEXOM	Exact match	Winnipeg, MB, CanadaHQ recorded Sep 19, 2026	51-200	68 contacts →
	Exact match “The wastewater industry has seen how nutrients and energy costs expose the limits of existing solutions.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9	Bennett Construction Group	Exact match	Millgrove, ON, CanadaHQ recorded Sep 19, 2026	51-200	63 contacts →
	Exact match “Bennett Construction Group has specialized in the construction of Water and Wastewater treatment facilities for over 40 years.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10	GS Construction Underground Infrastructure	Exact match	Acheson, AB, CanadaHQ recorded Sep 19, 2026	51-200	61 contacts →
	Exact match “GS has prided itself on a reputation of quality work, continuous learning and a primary focus on employee safety.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11	AWC Water Solutions	Exact match	Langley, BC, CanadaHQ recorded Sep 19, 2026	51-200	61 contacts →
	Exact match “AWC Water Solutions designs, manufactures, and integrates water and wastewater treatment systems for a variety of municipal and industrial applications.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12	Stormtec Water Management	Exact match	Delta, BC, CanadaHQ recorded Sep 19, 2026	51-200	60 contacts →
	Exact match “Established in 2003, Stormtec is the water management solutions company specializing in providing temporary and permanent industrial water treatment systems for sediment…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13	Clean Water Works INC	Exact match	Ottawa, ON, CanadaHQ recorded Sep 19, 2026	51-200	57 contacts →
	Exact match “Headquartered in Ottawa and Montreal serving Ontario, Quebec and New Brunswick, Clean Water Works is one of the nation’s foremost sewer rehabilitation companies.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14	Tritech Group LTD	Exact match	Langley, BC, CanadaHQ recorded Sep 19, 2026	51-200	56 contacts →
	Exact match “Tritech is an industry leader in integrated design, project management, and construction services for water and wastewater infrastructure projects.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15	Aquatech Canadian Water Services INC	Exact match	Cochrane, AB, CanadaHQ recorded Sep 19, 2026	51-200	54 contacts →
	Exact match “At Aquatech Canadian Water Services Inc, we are dedicated to empowering communities, cities, and industries to achieve their water services goals.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16	Filtrum Construction	Exact match	Québec, QC, CanadaHQ recorded Sep 19, 2026	51-200	49 contacts →
	Exact match “As water and wastewater specialists, Filtrum Construction is a trusted partner to engineer and construct leading-edge, cost-effective solutions for industrial and municipal…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17	Napier-Reid LTD	Exact match	Aurora, ON, CanadaHQ recorded Sep 19, 2026	11-50	45 contacts →
	Exact match “About Us Napier-Reid is a leading water and wastewater treatment solutions company with an established reputation for design innovation and manufacturing excellence.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18	Delco Water, A Division Of Delco Automation	Exact match	Saskatoon, SK, CanadaHQ recorded Sep 19, 2026	51-200	44 contacts →
	Exact match “Delco Water, a division of Delco Automation Inc, is a premier water treatment solutions provider and equipment integrator.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19	H2flow	Exact match	Vaughan, ON, CanadaHQ recorded Sep 19, 2026	11-50	43 contacts →
	Exact match “Water & Wastewater Treatment Equipment sales & service for industrial & municipal applications: grinders, screens, conveyors, SBRs, grit removal, aerators, diffusers, blowers…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20	Ovivo Filterboxx	Exact match	Calgary, AB, CanadaHQ recorded Sep 19, 2026	51-200	41 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21	Mabarex	Exact match	Saint-laurent, QC, CanadaHQ recorded Sep 19, 2026	11-50	35 contacts →
	Exact match “DESIGN / BUILT / OPERATE Mabarex is a water-treatment leader serving clients across Canada since 1983.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22	Continental Carbon Group	Exact match	Stoney Creek, ON, CanadaHQ recorded Sep 19, 2026	11-50	35 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23	Kontek Process Water Management	Exact match	Burlington, ON, CanadaHQ recorded Sep 19, 2026	11-50	34 contacts →
	Exact match “Kontek Process Water Management is a well-established privately owned Canadian company with primary offices and manufacturing facilities located in Burlington, Ontario, Canada.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
24	Magna Engineering Services INC	Exact match	Calgary, AB, CanadaHQ recorded Sep 19, 2026	11-50	33 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25	Waterloo Biofilter Systems INC	Exact match	Guelph, ON, CanadaHQ recorded Sep 19, 2026	11-50	32 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 19, 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 “wastewater treatment plant 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 154 wastewater treatment plant contractors based in Canada

See the full list, filter by size, metro and specialty, and access 2,257 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Wastewater treatment plant contractors based in Canada at a glance

As of Sep 19, 2026

52.1%Verified-email coverage

28.1Average contacts per company

11-50Median size (employees)

10.4%Largest-city concentration · Calgary

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

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 154 companies.

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.
What qualifies: Company records associated with Canada whose business descriptions match “wastewater treatment plant 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 2,257 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 September 19, 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.

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

How many wastewater treatment plant contractors are there based in Canada?

RevenueBase identified 154 company matches for wastewater treatment plant contractors associated with Canada as of September 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?

OVIVO tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most wastewater treatment plant contractors?

Calgary leads with 16 company records, followed by Mississauga (7) and Edmonton (5).

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 2,257 professional contacts with verified work emails tracked across these 154 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 September 19, 2026.

Ready to reach these companies? Verified emails and direct dials for all 154 wastewater treatment plant contractors based in Canada. Start with a free account, no credit card.

Download this list →

Related lists

Wastewater treatment plant contractors by geography

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 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.