Company lists · Data refreshed November 2026

Top 25 Rooftop unit contractors based in Canada

RevenueBase identified 956 company matches for rooftop unit contractors associated with Canada as of November 2026 and tracks 7,287 professional contacts across them, including 2,405 with verified work emails. Calgary is the largest hub.

This list covers company matches for rooftop unit 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 November 6, 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 Nov 6, 2026 How this list was built
956Companies
7,287Contacts tracked
2,405Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest rooftop unit contractors based in Canada

Ranked by team size
Top 25 of 956 company matches for rooftop unit contractors based in Canada, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchEdmonton, SK, CanadaHQ recorded Nov 6, 2026201-500220 contacts →

Exact match

“Founded in 1968, Gateway Mechanical is a privately owned company that has established itself as a leader in the commercial and industrial refrigeration, heating and air…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchSt. Catharines, ON, CanadaHQ recorded Nov 6, 20261,001-5,000199 contacts →

Exact match

“The Right Time Group of Companies has been proudly providing a full range of home HVAC solutions to customers across Ontario, Manitoba, Saskatchewan, Alberta and British Columbia…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchCalgary, AB, CanadaHQ recorded Nov 6, 202651-200158 contacts →

Exact match

“Arpi’s Industries, a full service mechanical contractor, provides heating, air conditioning, ventilation, plumbing, and air quality solutions to residential and commercial markets.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchNorth Vancouver, BC, CanadaHQ recorded Nov 6, 202651-20096 contacts →

Exact match

“Olympic International is a premier provider of heating, ventilating and air conditioning (HVAC) equipment design, engineering support and training serving Western Canada.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchLachine, QC, CanadaHQ recorded Nov 6, 202651-20096 contacts →

Exact match

“BAULNE is a company based in Montreal and Quebec City, providing HVAC building mechanics services (heating/cooling) for the following sectors: industrial, commercial…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchCalgary, AB, CanadaHQ recorded Nov 6, 2026201-50093 contacts →

Exact match

“Trusted Furnace, Air Conditioner, & Water Heater Repair/Installation Services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchLaval, QC, CanadaHQ recorded Nov 6, 2026201-50085 contacts →

Exact match

“Depuis 46 ans, nous consacrons beaucoup d’efforts à cultiver le sentiment d’appartenance de nos employés envers l’entreprise, ce qui nous permet de surpasser les attentes de nos…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchLaval, QC, CanadaHQ recorded Nov 6, 202651-20067 contacts →

Exact match

“Established in Laval for over 35 years and now present on the South Shore, Ventilabec is recognized as a leader in the installation and maintenance of air conditioning…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchSherbrooke, QC, CanadaHQ recorded Nov 6, 2026201-50065 contacts →

Exact match

“Que ce soit en climatisation, en ventilation, en réfrigération, en congélation, en plomberie, en chauffage ou pour les procédés de gaz naturel, nous avons un technicien qualifié…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchWinnipeg, MB, CanadaHQ recorded Nov 6, 202651-20065 contacts →

Exact match

“SolutionAir is a leading manufacturer of rooftop air handlers, and energy recovery units.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchLaval, QC, CanadaHQ recorded Nov 6, 202651-20061 contacts →

Exact match

“Depuis 1987, Lysair se démarque par la qualité de ses projets et de ses services d’entretien en ventilation, climatisation et chauffage dans les secteurs résidentiels…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchToronto, ON, CanadaHQ recorded Nov 6, 2026201-50061 contacts →

Exact match

“Simply Green offers a wide range of options to help you get equipped with reliable, top-quality, high-efficiency heating and cooling systems.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchMississauga, ON, CanadaHQ recorded Nov 6, 202651-20060 contacts →

Exact match

“Nutemp Mechanical Systems LTD is a leading comprehensive mechanical heating, ventilation, plumbing, air conditioning and cooling (HVAC/R) contractor.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchLaval, QC, CanadaHQ recorded Nov 6, 202651-20058 contacts →

Exact match

“MÉCANIQUE RH fait siennes les exigences de ses clients : que ce soit dans le domaine de la ventilation, de la climatisation, du chauffage, de la réfrigération, de la régulation…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchSudbury, ON, CanadaHQ recorded Nov 6, 202651-20053 contacts →

Exact match

“PSL is one of the fastest growing mechanical service providers in Northern Ontario.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchPort Coquitlam, BC, CanadaHQ recorded Nov 6, 202651-20053 contacts →

Exact match

“Custom Air started in 1991 when the founders decided that the commercial and industrial HVAC industry would benefit from a different kind of company - a company aimed at providing…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchBurnaby, BC, CanadaHQ recorded Nov 6, 202651-20052 contacts →

Exact match

“Welcome to Broadway.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchBurnaby, BC, CanadaHQ recorded Nov 6, 202651-20052 contacts →

Exact match

“From HVAC-R and Plumbing to Gas and Controls, we're raising the bar in Mechanical Contracting.#BuildingYourFutureTogether”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchVancouver, BC, CanadaHQ recorded Nov 6, 202611-5049 contacts →

Exact match

“Leader in Temporary Air Conditioning Systems.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchOakville, ON, CanadaHQ recorded Nov 6, 202651-20045 contacts →

Exact match

“A1 Air Conditioning & Heating is the GTA’s finest residential and commercial heating and cooling contractor.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchBurnaby, BC, CanadaHQ recorded Nov 6, 202651-20045 contacts →

Exact match

“Enviro-Tech Mechanical is a well established HVAC and Refrigeration contractor that does both service & installation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchGrimsby, ON, CanadaHQ recorded Nov 6, 202651-20043 contacts →

Exact match

“Our Mission:"Major Refrigeration strives to provide the best quality service in a safe, efficient manner at all times.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchAnjou, QC, CanadaHQ recorded Nov 6, 202651-20042 contacts →

Exact match

“En opération depuis plus de 25 ans, Confort Expert a su gagner la confiance d’acteurs majeurs dans le domaine de l’énergie; nous sommes depuis plusieurs années partenaire…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchMississauga, QC, CanadaHQ recorded Nov 6, 20261,001-5,00041 contacts →

Exact match

“Airtrons Canada is a national provider of HVAC, Building Automation and Energy Services for Canadian businesses.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchLongueuil, QC, CanadaHQ recorded Nov 6, 202611-5039 contacts →

Exact match

“Nous somme une entreprise qui œuvre dans le domaine de la climatisation, réfrigération, ventilation, plomberie, combustion commercial et industrielle.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 956 rooftop unit contractors based in Canada

See the full list, filter by size, metro and specialty, and access 2,405 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Rooftop unit contractors based in Canada at a glance

As of Nov 6, 2026
33.0%Verified-email coverage
7.6Average contacts per company
1-10Median size (employees)
5.8%Largest-city concentration · Calgary
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
461
11-50
330
51-200
106
201-500
8
501-1,000
2
1,001-5,000
2

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 956 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 “rooftop unit 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 2,405 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 November 6, 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 “rooftop unit contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many rooftop unit contractors are there based in Canada?

RevenueBase identified 956 company matches for rooftop unit contractors associated with Canada as of November 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?

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

Which city has the most rooftop unit contractors?

Calgary leads with 55 company records, followed by Toronto (53) and Mississauga (32).

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 2,405 professional contacts with verified work emails tracked across these 956 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 November 6, 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 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.