Company lists · Data refreshed November 2026

Top 25 Mechanical maintenance contractors based in Canada

RevenueBase identified 643 company matches for mechanical maintenance contractors associated with Canada as of November 2026 and tracks 7,835 professional contacts across them, including 3,237 with verified work emails. Calgary is the largest hub.

This list covers company matches for mechanical maintenance 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
643Companies
7,835Contacts tracked
3,237Verified emails
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The 25 largest mechanical maintenance contractors based in Canada

Ranked by team size
Top 25 of 643 company matches for mechanical maintenance 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 matchToronto, QC, CanadaHQ recorded Nov 6, 20261,001-5,0001,464 contacts →

Exact match

“Our customers depend on their buildings, industrial assets, processes, and energy management, to help them meet competitive challenges.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchLaval, QC, CanadaHQ recorded Nov 6, 2026201-500224 contacts →

Exact match

“A leader in integrated building mechanical and energy efficiency solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact 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
4Exact matchMontréal, QC, CanadaHQ recorded Nov 6, 2026501-1,000203 contacts →

Exact match

“Depuis plus de 42 ans, Gastier est synonyme de qualité et de service dans le domaine mécanique et électrique.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchOakville, ON, CanadaHQ recorded Nov 6, 2026201-500168 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchMississauga, ON, CanadaHQ recorded Nov 6, 2026201-500158 contacts →

Exact match

“MultiTech Trades Corp is a full-service mechanical, electrical, controls, plumbing and building services contractor delivering complex ICI, institutional, and critical…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchSpruce Grove, NB, CanadaHQ recorded Nov 6, 2026201-500105 contacts →

Exact match

“Got questions or are interested in a particular service?”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchJonquière, QC, CanadaHQ recorded Nov 6, 202651-20091 contacts →

Exact match

“For over 30 years, the team of more than 95 professionals at STI Maintenance has been providing maintenance management action plans to optimize your equipment and installations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchVal-d'or, CanadaHQ recorded Nov 6, 2026201-50088 contacts →

Exact match

“ACE SERVICES MÉCANIQUES ENTRETIEN MÉCANIQUE MOBILE!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchMontréal, QC, CanadaHQ recorded Nov 6, 202651-20086 contacts →

Exact match

“Groupe SCV is a mechanical and electrical building contractor offering services in the following sectors: commercial, industrial, institutional.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchBurnaby, BC, CanadaHQ recorded Nov 6, 202651-20086 contacts →

Exact match

“We are Canada's leading repair and maintenance service for commercial kitchens, appliances, & restaurant equipment.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact 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
13Exact matchLaval, QC, CanadaHQ recorded Nov 6, 202651-20066 contacts →

Exact match

“Les origines d’EPM Mecanic remontent à 1978, alors sous le nom d’E.P.M.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact 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
15Exact 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
16Exact 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
17Exact matchVaughan, ON, CanadaHQ recorded Nov 6, 202651-20056 contacts →

Exact match

“Welcome to OPUS Mechanical Services Ltd!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact 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
19Exact 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
20Exact 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
21Exact matchCalgary, AB, CanadaHQ recorded Nov 6, 202651-20051 contacts →

Exact match

“Mader are heavy equipment maintenance experts delivering quality repairs, preventative maintenance and expert diagnostics.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchTerrebonne, QC, CanadaHQ recorded Nov 6, 202651-20050 contacts →

Exact match

“Depuis sa création dans les années 90, Oslo Construction est devenue progressivement l’une des plus importantes compagnies dans le domaine de la mécanique industrielle au Québec.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchSurrey, BC, CanadaHQ recorded Nov 6, 202651-20048 contacts →

Exact match

“INSTALL.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact 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
25Exact matchDartmouth, NS, CanadaHQ recorded Nov 6, 202651-20043 contacts →

Exact match

“Maritime Pressure Works Limited is a Nova Scotia owned and operated company founded in 1998.”

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

Showing 25 of 643 mechanical maintenance contractors based in Canada

See the full list, filter by size, metro and specialty, and access 3,237 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Mechanical maintenance contractors based in Canada at a glance

As of Nov 6, 2026
41.3%Verified-email coverage
12.2Average contacts per company
11-50Median size (employees)
6.2%Largest-city concentration · Calgary
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
269
11-50
237
51-200
102
201-500
14
501-1,000
2
1,001-5,000
3
10001+
1

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 643 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 “mechanical maintenance 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 3,237 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 “mechanical maintenance contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many mechanical maintenance contractors are there based in Canada?

RevenueBase identified 643 company matches for mechanical maintenance 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?

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

Which city has the most mechanical maintenance contractors?

Calgary leads with 40 company records, followed by Toronto (31) and Edmonton (27).

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 3,237 professional contacts with verified work emails tracked across these 643 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.