Company lists · Data refreshed September 2026
Top 8 Mechanical systems integrators based in Montreal, Canada
RevenueBase identified 28 mechanical systems integrators headquartered in Montreal, Canada as of September 2026 and tracks 931 professional contacts across them, including 449 with verified work emails. Across Canada, Calgary is the largest hub for this category (55 companies); Montreal has 28.
This list covers mechanical systems integrators headquartered in Montreal, 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 28, 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.
The 8 largest mechanical systems integrators based in Montreal, Canada
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 400 contacts → | ||||
Indirect evidence “Dedicated to Excellence For over a century, Carmichael has been delivering expert solutions in HVAC, industrial refrigeration, automation, combustion, energy, and scientific…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 2 | 24 contacts → | ||||
Indirect evidence “Rotalec’s mission is to help our customers, working side-by-side to customize solutions specific to their unique needs.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 22 contacts → | ||||
Indirect evidence “En vingt ans, nous avons su développer une expertise et des compétences qui nous propulsent aujourd’hui parmi les meilleures entreprises du domaine de la mécanique du bâtiment au…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 8 contacts → | ||||
Indirect evidence “Enviroair est un agent manufacturier de CVACR pouvant vous assister dans vos recherches de solutions techniques./ Enviroair is a manufacturer’s agent operating in the HVACR…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 5 | 5 contacts → | ||||
Indirect evidence “Dans le domaine depuis 60 ans, l'équipe de Centco travaille tous les jours avec des équipements à la fine pointe de la technologie pour accomplir un travail de qualité, tout en…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 5 contacts → | ||||
Partial evidence “We specialize in the mechanical integration of engineering, processes, and solutions.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 4 contacts → | ||||
Indirect evidence “Nous sommes une firme de génie-conseil spécialisée en mécanique et en électricité du bâtiment ayant pour objectif de créer des bâtiments confortables, intelligents et performants…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 2 contacts → | ||||
Indirect evidence “INTÉGRATEUR DE SYSTÈMES En tant qu’Intégrateur de Systèmes de contrôle, notre équipe possède une vaste connaissance des technologies et des procédés industriels, ce qui nous…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
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: mechanical systems integrators. 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 mechanical systems integrators.
- Partial evidence
- Its own public description names part of mechanical systems integrators, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name mechanical systems integrators. 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 8 of 28 mechanical systems integrators based in Montreal, Canada
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Mechanical systems integrators based in Montreal, Canada at a glance
As of Sep 28, 2026Companies by employee count
Email recency for this list is measured across the whole Canada list rather than for Montreal, so it is reported there. Company counts and contact totals on this page are exact for Montreal, over 28 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 mechanical systems integrators, 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 Montreal, Canada whose own description of what they do matches “mechanical systems integrators”. 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 mechanical systems integrators), 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 mechanical systems integrators, and records with no verified work email. Companies headquartered outside Montreal 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, 449 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 28, 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.
Mechanical systems integrators by metro in Canada
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 mechanical systems integrators, 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 mechanical systems integrators are there based in Montreal, Canada?
RevenueBase identified 28 mechanical systems integrators headquartered in Montreal, 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?
Carmichael Engineering LTD, headquartered in Montreal, tops this list with the largest team on record.
Which city in Canada has the most mechanical systems integrators?
Calgary leads Canada with 55 headquartered companies, followed by Mississauga (44) and Toronto (44). Montreal has 28.
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 449 verified decision-maker contacts tracked across these 28 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 28, 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.
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