Company lists · Data refreshed September 2026

Top 25 Building water systems companies based in Canada

Name: Building water systems companies based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 628 companies tracked

RevenueBase identified 628 building water systems companies headquartered in Canada as of September 2026 and tracks 6,642 professional contacts across them, including 1,966 with verified work emails. Calgary is the largest hub.

This list covers building water systems 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 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

628Companies

6,642Contacts tracked

1,966Verified emails

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The 25 largest building water systems companies based in Canada

Ranked by team size

Top 25 of 628 building water systems companies 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 building water systems 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	Emco Corporation Plumbing, Hvac, Waterworks, Industrial, Irrigation, Fire Protection	Indirect evidence	London, ON, CanadaHQ checked Sep 16, 2026	1,001-5,000	1,601 contacts →
	Indirect evidence “EMCO Corporation is Canada's leading plumbing wholesale company providing products and services for any project in the areas of plumbing, HVAC, waterworks, industrial, irrigation…” Source: RevenueBase Database · checked Sep 16, 2026
2	John Brooks	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 16, 2026	201-500	229 contacts →
	Indirect evidence “Since 1938, John Brooks has been solving fluid handling challenges for our customers through the people and products we stand behind.” Source: RevenueBase Database · checked Sep 16, 2026
3	Pitt Meadows Plumbing	Partial evidence	Maple Ridge, BC, CanadaHQ checked Sep 16, 2026	201-500	144 contacts →
	Partial evidence “At Pitt Meadows Plumbing, we don’t just build mechanical systems-we build something iconic.” Source: RevenueBase Database · checked Sep 16, 2026
4	PML Professional Mechanical LTD	Strong evidence	Coquitlam, BC, CanadaHQ checked Sep 16, 2026	201-500	129 contacts →
	Strong evidence “We are PML Professional Mechanical Ltd, a leader in Building Systems in Western Canada.” Source: RevenueBase Database · checked Sep 16, 2026
5	Canature Watergroup	Partial evidence	Regina, SK, CanadaHQ checked Sep 16, 2026	201-500	119 contacts →
	Partial evidence “Canature WaterGroup™ is a dynamic leader in the North American water treatment industry.” Source: RevenueBase Database · checked Sep 16, 2026
6	Crystal Fountains	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	51-200	97 contacts →
	Indirect evidence “Crystal Fountains is one of the most respected fountain design, technology and manufacturing firms.” Source: RevenueBase Database · checked Sep 16, 2026
7	Milani Plumbing, Heating, & AIR Conditioning	Indirect evidence	Burnaby, BC, CanadaHQ checked Sep 16, 2026	51-200	95 contacts →
	Indirect evidence “Milani has been specializing in servicing the plumbing, drainage and heating needs of commercial and residential clients since 1956.” Source: RevenueBase Database · checked Sep 16, 2026
8	Kent Water Purification Systems INC	Strong evidence	Missisauga, ON, CanadaHQ checked Sep 16, 2026	n/a	78 contacts →
	Strong evidence “Kent Water Purification Systems is a leading supplier of water purification systems in the Greater Toronto Area.” Source: RevenueBase Database · checked Sep 16, 2026
9	LPI Mechanical	Indirect evidence	Brampton, ON, CanadaHQ checked Sep 16, 2026	51-200	67 contacts →
	Indirect evidence “For the last 24 years, LPI Mechanical Inc.” Source: RevenueBase Database · checked Sep 16, 2026
10	Pace Solutions Corp	Partial evidence	Delta, BC, CanadaHQ checked Sep 16, 2026	51-200	61 contacts →
	Partial evidence “Water Treatment Leader in Water & Energy Conservation.” Source: RevenueBase Database · checked Sep 16, 2026
11	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
12	AWC Water Solutions	Strong evidence	Langley, BC, CanadaHQ checked Sep 16, 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 16, 2026
13	Tritech Group LTD	Partial evidence	Langley, BC, CanadaHQ checked Sep 16, 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 16, 2026
14	Canyon Plumbing And Heating LTD	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 16, 2026	51-200	55 contacts →
	Indirect evidence “With a commitment to superior quality, strong relationships, extensive experience and providing assurance, we’re more than just great plumbers – we’re great partners too.” Source: RevenueBase Database · checked Sep 16, 2026
15	Charbonneau	Indirect evidence	Montréal, QC, CanadaHQ checked Sep 16, 2026	201-500	51 contacts →
	Indirect evidence “Avec plus de 100 ans d’expertise, Charbonneau est le chef de file dans le domaine de la plomberie, du chauffage et de la climatisation dans le Grand Montréal et ses environs.” Source: RevenueBase Database · checked Sep 16, 2026
16	Filtrum Construction	Partial evidence	Québec, QC, CanadaHQ checked Sep 16, 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 16, 2026
17	Napier-Reid LTD	Partial evidence	Aurora, ON, CanadaHQ checked Sep 16, 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 16, 2026
18	Delco Water, A Division Of Delco Automation	Partial evidence	Saskatoon, SK, CanadaHQ checked Sep 16, 2026	51-200	44 contacts →
	Partial evidence “Delco Water, a division of Delco Automation Inc, is a premier water treatment solutions provider and equipment integrator.” Source: RevenueBase Database · checked Sep 16, 2026
19	H2flow	Partial evidence	Vaughan, ON, CanadaHQ checked Sep 16, 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 16, 2026
20	Jenaco	Indirect evidence	Saint-hubert, QC, CanadaHQ checked Sep 16, 2026	51-200	43 contacts →
	Indirect evidence “Chez Jenaco, nous ne reculons pas devant les défis de taille.” Source: RevenueBase Database · checked Sep 16, 2026
21	DMS Mechanical LTD	Partial evidence	Burnaby, BC, CanadaHQ checked Sep 16, 2026	51-200	42 contacts →
	Partial evidence “From HVAC-R and Plumbing to Gas and Controls, we're raising the bar in Mechanical Contracting.#BuildingYourFutureTogether” Source: RevenueBase Database · checked Sep 16, 2026
22	NCS Fluid Handling Systems	Strong evidence	Nisku, AB, CanadaHQ checked Sep 16, 2026	51-200	41 contacts →
	Strong evidence “NCS Fluid Handling Systems provides complete sales, service & equipment packages supported by technically compliant, professionally designed solutions & innovative water…” Source: RevenueBase Database · checked Sep 16, 2026
23	Ovivo Filterboxx	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 16, 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 16, 2026
24	TPH Plumbing & Heating	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 16, 2026	11-50	40 contacts →
	Indirect evidence “Since 1986, we have been providing commercial, industrial and institutional piping, plumbing and heating services to Ottawa and Eastern Ontario.” Source: RevenueBase Database · checked Sep 16, 2026
25	Caon Services INC	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 16, 2026	11-50	37 contacts →
	Indirect evidence “Welcome to Caon Services Inc.” 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: building water systems 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 building water systems companies.
Partial evidence: Its own public description names part of building water systems companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name building water systems 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 628 building water systems companies based in Canada

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Building water systems companies based in Canada at a glance

As of Sep 16, 2026

29.6%Verified-email coverage

10.6Average contacts per company

1-10Median size (employees)

5.3%Largest-city concentration · Calgary

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

325

11-50

194

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 628 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 building water systems 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 “building water systems 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 building water systems 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 building water systems 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, 1,966 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.

Building water systems companies by metro

Building water systems companies in Calgary33
Building water systems companies in Toronto30

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 building water systems 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 building water systems companies are there based in Canada?

RevenueBase identified 628 building water systems 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?

Emco Corporation Plumbing, Hvac, Waterworks, Industrial, Irrigation, Fire Protection, headquartered in London, tops this list with the largest team on record.

Which city has the most building water systems companies?

Calgary leads with 33 headquartered companies, followed by Toronto (30) and Montreal (21).

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 1,966 verified decision-maker contacts tracked across these 628 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.