Company lists · Data refreshed September 2026

Top 25 Drainage contractors based in Canada

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

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 229 companies tracked

RevenueBase identified 229 drainage contractors headquartered in Canada as of September 2026 and tracks 2,786 professional contacts across them, including 1,117 with verified work emails. Edmonton is the largest hub.

This list covers drainage 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 16, 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 16, 2026 86% judged on-target in blind review

229Companies

2,786Contacts tracked

1,117Verified emails

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The 25 largest drainage contractors based in Canada

Ranked by team size

Top 25 of 229 drainage contractors based in Canada, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to drainage 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	Tomlinson Group Of Companies	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 16, 2026	501-1,000	475 contacts →
	Indirect evidence “Starting with a single-axle dump truck in 1952, R.W.” Source: RevenueBase Database · checked Sep 16, 2026
2	Armtec	Partial evidence	Edmonton, AB, CanadaHQ checked Sep 16, 2026	1,001-5,000	475 contacts →
	Partial evidence “Armtec has spent over 110 years supplying the most innovative drainage equipment, dynamically designed to support roadways, stormwater, rehabilitation, and erosion control.” Source: RevenueBase Database · checked Sep 16, 2026
3	Clearway Group Of Companies	Indirect evidence	Maple, ON, CanadaHQ checked Sep 16, 2026	201-500	192 contacts →
	Indirect evidence “At Clearway, we are committed to excellence in every project we undertake.” Source: RevenueBase Database · checked Sep 16, 2026
4	Soleno	Indirect evidence	Saint-jean-sur-richelieu, QC, CanadaHQ checked Sep 16, 2026	501-1,000	162 contacts →
	Indirect evidence “1st developer of solutions for mastering water sustainably.” Source: RevenueBase Database · checked Sep 16, 2026
5	Duroking Construction	Indirect evidence	Mirabel, QC, CanadaHQ checked Sep 16, 2026	501-1,000	127 contacts →
	Indirect evidence “DUROKING Construction est une entreprise de construction œuvrant dans le domaine du génie civil pour les projets municipaux, commerciaux ou gouvernementaux.” Source: RevenueBase Database · checked Sep 16, 2026
6	Environnement Routier NRJ	Indirect evidence	Lachine, QC, CanadaHQ checked Sep 16, 2026	501-1,000	105 contacts →
	Indirect evidence “Fondée en 1964 sous la raison sociale Legault et Touchette inc, Environnement routier NRJ s’est toujours adaptée aux exigences des secteurs de la construction et de l’entretien en…” Source: RevenueBase Database · checked Sep 16, 2026
7	Civica Infrastructure INC	Indirect evidence	Vaughan, ON, CanadaHQ checked Sep 16, 2026	11-50	69 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
8	GS Construction Underground Infrastructure	Indirect evidence	Acheson, AB, CanadaHQ checked Sep 16, 2026	51-200	61 contacts →
	Indirect evidence “GS has prided itself on a reputation of quality work, continuous learning and a primary focus on employee safety.” Source: RevenueBase Database · checked Sep 16, 2026
9	Clean Water Works INC	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 16, 2026	51-200	57 contacts →
	Indirect evidence “Headquartered in Ottawa and Montreal serving Ontario, Quebec and New Brunswick, Clean Water Works is one of the nation’s foremost sewer rehabilitation companies.” Source: RevenueBase Database · checked Sep 16, 2026
10	Filtrum Construction	Indirect evidence	Québec, QC, CanadaHQ checked Sep 16, 2026	51-200	49 contacts →
	Indirect 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 16, 2026
11	Waiward Construction Management INC	Indirect evidence	Edmonton, AB, CanadaHQ checked Sep 16, 2026	51-200	40 contacts →
	Indirect evidence “Waiward Construction Managment Inc.” Source: RevenueBase Database · checked Sep 16, 2026
12	Global Drain Technologies	Partial evidence	Winnipeg, CanadaHQ checked Sep 16, 2026	51-200	39 contacts →
	Partial evidence “Global Drain Technologies (GDT) is a leader in drain manufacturing and providing application-focused drainage solutions that work.” Source: RevenueBase Database · checked Sep 16, 2026
13	Aqua Data INC	Indirect evidence	Vaudreuil-dorion, QC, CanadaHQ checked Sep 16, 2026	51-200	33 contacts →
	Indirect evidence “Oeuvrant exclusivement dans le domaine de la gestion, l’auscultation, le diagnostic et de l’entretien préventif de réseaux de distribution d’eau potable et d’égouts, Aqua Data…” Source: RevenueBase Database · checked Sep 16, 2026
14	Excavation St-Pierre & Tremblay	Indirect evidence	Cowansville, QC, CanadaHQ checked Sep 16, 2026	51-200	32 contacts →
	Indirect evidence “Référence dans le domaine du génie civil depuis plus de 25 ans dans la région de l'Estrie et de la Montérégie, Excavation St-Pierre & Tremblay a fait sa renommée avec ses services…” Source: RevenueBase Database · checked Sep 16, 2026
15	Rabcon Contractors LTD	Partial evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	51-200	22 contacts →
	Partial evidence “Established in April Rabcon Contractors Ltd.” Source: RevenueBase Database · checked Sep 16, 2026
16	TGC Entrepreneur Général	Indirect evidence	Sherbrooke, QC, CanadaHQ checked Sep 16, 2026	51-200	19 contacts →
	Indirect evidence “PILIER DE LA CONSTRUCTION EN ESTRIE ET PARTOUT AU QUÉBEC DEPUIS PLUS DE 50 ANS TGC est un entrepreneur général spécialisé en pose d’aqueduc et d’égouts partout au Québec.” Source: RevenueBase Database · checked Sep 16, 2026
17	Peak Contracting Services INC	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 16, 2026	11-50	19 contacts →
	Indirect evidence “PEAK is a water and sewer deep utilities provider, indemnified with the City of Calgary, which offers commercial Installations.” Source: RevenueBase Database · checked Sep 16, 2026
18	Nusite Contractors LTD	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	11-50	19 contacts →
	Indirect evidence “Established in 1991, Nusite has been serving commercial and residential clients for over 30 years.” Source: RevenueBase Database · checked Sep 16, 2026
19	Navacon Construction INC	Partial evidence	Brantford, ON, CanadaHQ checked Sep 16, 2026	51-200	19 contacts →
	Partial evidence “Navacon Construction is a full service heavy civil contractor specializing in sewer and watermain replacement.” Source: RevenueBase Database · checked Sep 16, 2026
20	Transvac Group Of Companies	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 16, 2026	51-200	18 contacts →
	Indirect evidence “Environmental and Plumbing Services Plumbing services” Source: RevenueBase Database · checked Sep 16, 2026
21	AWD Contractors	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 16, 2026	11-50	16 contacts →
	Partial evidence “At AWD Contractors we continue to be an integral partner in the construction industry by providing our clients with advanced products, sustainable solutions, and outstanding…” Source: RevenueBase Database · checked Sep 16, 2026
22	Taillieu Construction LTD	Indirect evidence	Headingly, MB, CanadaHQ checked Sep 16, 2026	51-200	16 contacts →
	Indirect evidence “TAILLIEU CONSTRUCTION LTD is a company based out of 7400 ROBLIN BLVD, Headingly, Manitoba, Canada.” Source: RevenueBase Database · checked Sep 16, 2026
23	Formally AMG Environmental INC	Indirect evidence	Barrie, ON, CanadaHQ checked Sep 16, 2026	11-50	14 contacts →
	Indirect evidence “AMG Environmental Inc.” Source: RevenueBase Database · checked Sep 16, 2026
24	Titan Contractors	Partial evidence	Kenora, ON, CanadaHQ checked Sep 16, 2026	11-50	14 contacts →
	Partial evidence “Providing Service You Deserve, Titan Contractors (Kenora) Ltd.” Source: RevenueBase Database · checked Sep 16, 2026
25	Smart City Water INC	Indirect evidence	Vaughan, ON, CanadaHQ checked Sep 16, 2026	11-50	13 contacts →
	Indirect evidence “Municipalities struggle to manage aging stormwater systems.” 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: drainage 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 drainage contractors.
Partial evidence: Its own public description names part of drainage contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name drainage 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 229 drainage contractors based in Canada

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Drainage contractors based in Canada at a glance

As of Sep 16, 2026

40.1%Verified-email coverage

12.2Average contacts per company

11-50Median size (employees)

4.8%Largest-city concentration · Edmonton

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

110

11-50

51-200

201-500

501-1,000

1,001-5,000

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 229 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 drainage 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 “drainage 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 drainage 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 drainage 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, 1,117 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.

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 drainage 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 drainage contractors are there based in Canada?

RevenueBase identified 229 drainage 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?

Tomlinson Group Of Companies, headquartered in Ottawa, tops this list with the largest team on record.

Which city has the most drainage contractors?

Edmonton leads with 11 headquartered companies, followed by Toronto (9) and Montreal (8).

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 1,117 verified decision-maker contacts tracked across these 229 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.

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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.