Company lists · Data refreshed September 2026

Top 25 Industrial maintenance providers based in Canada

Name: Industrial maintenance providers based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 594 companies tracked

RevenueBase identified 594 industrial maintenance providers headquartered in Canada as of September 2026 and tracks 8,504 professional contacts across them, including 3,319 with verified work emails. Toronto is the largest hub.

This list covers industrial maintenance providers 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 17, 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 17, 2026 86% judged on-target in blind review

594Companies

8,504Contacts tracked

3,319Verified emails

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The 25 largest industrial maintenance providers based in Canada

Ranked by team size

Top 25 of 594 industrial maintenance providers based in Canada, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to industrial maintenance providers: 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	Ainsworth INC	Partial evidence	Toronto, ON, CanadaHQ checked Sep 17, 2026	1,001-5,000	1,405 contacts →
	Partial evidence “Our customers depend on their buildings, industrial assets, processes, and energy management, to help them meet competitive challenges.” Source: RevenueBase Database · checked Sep 17, 2026
2	Canem Systems LTD	Indirect evidence	Richmond, BC, CanadaHQ checked Sep 17, 2026	501-1,000	384 contacts →
	Indirect evidence “Canem Systems is a leading full-service electrical and mechanical contractor, offering comprehensive services across Canada.” Source: RevenueBase Database · checked Sep 17, 2026
3	Tacten Industrial INC	Partial evidence	Sherwood Park, CanadaHQ checked Sep 17, 2026	501-1,000	367 contacts →
	Partial evidence “INTEGRATED INDUSTRIAL SERVICES THE SMARTER WAY.” Source: RevenueBase Database · checked Sep 17, 2026
4	Melloy Industrial Services INC	Strong evidence	Nisku, AB, CanadaHQ checked Sep 17, 2026	51-200	198 contacts →
	Strong evidence “Melloy Industrial is a trusted leader in heavy industrial maintenance, turnarounds, project execution and fabrication services across Canada.” Source: RevenueBase Database · checked Sep 17, 2026
5	Gastier M.P. INC	Indirect evidence	Montréal, QC, CanadaHQ checked Sep 17, 2026	501-1,000	195 contacts →
	Indirect evidence “Depuis plus de 42 ans, Gastier est synonyme de qualité et de service dans le domaine mécanique et électrique.” Source: RevenueBase Database · checked Sep 17, 2026
6	Blais Industries INC	Indirect evidence	Rouyn-noranda, QC, CanadaHQ checked Sep 17, 2026	201-500	185 contacts →
	Indirect evidence “Notre leadership prend racine dans la compétence de nos techniciens, nos gestionnaires et nos administrateurs.” Source: RevenueBase Database · checked Sep 17, 2026
7	Naylor Building Partnerships INC	Indirect evidence	Oakville, ON, CanadaHQ checked Sep 17, 2026	201-500	163 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
8	Blackstone Industrial Services	Indirect evidence	Sherwood Park, AB, CanadaHQ checked Sep 17, 2026	201-500	146 contacts →
	Indirect evidence “Blackstone believes that great people make great businesses.” Source: RevenueBase Database · checked Sep 17, 2026
9	Team Group	Strong evidence	Aurora, ON, CanadaHQ checked Sep 17, 2026	1,001-5,000	137 contacts →
	Strong evidence “TEAM Group is a self-performing provider of industrial cleaning, integrated facility management, technical cleaning, facility maintenance, and specialized industrial services…” Source: RevenueBase Database · checked Sep 17, 2026
10	Groupe PMI	Strong evidence	Sherbrooke, QC, CanadaHQ checked Sep 17, 2026	201-500	113 contacts →
	Strong evidence “Le Groupe PMI a pour mission de développer une offre de services complète pour la réalisation de projets industriels et de maintenance pour l'ensemble des industries primaires…” Source: RevenueBase Database · checked Sep 17, 2026
11	STI Maintenance	Partial evidence	Jonquière, QC, CanadaHQ checked Sep 17, 2026	51-200	94 contacts →
	Partial evidence “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.” Source: RevenueBase Database · checked Sep 17, 2026
12	CFM Custom Fabricators & Machinists LTD	Indirect evidence	Saint John, NB, CanadaHQ checked Sep 17, 2026	201-500	93 contacts →
	Indirect evidence “CFM is a company within the Construction & Equipment Division of J.D.” Source: RevenueBase Database · checked Sep 17, 2026
13	ROY	Indirect evidence	Anjou, QC, CanadaHQ checked Sep 17, 2026	1,001-5,000	92 contacts →
	Indirect evidence “Nous offrons une gamme complète de services intégrés d'entretien d'immeubles par l'intermédiaire de cinq filiales spécialisées et plus de 1 500 employés à votre service.” Source: RevenueBase Database · checked Sep 17, 2026
14	Baulne	Partial evidence	Lachine, QC, CanadaHQ checked Sep 17, 2026	51-200	89 contacts →
	Partial evidence “BAULNE is a company based in Montreal and Quebec City, providing HVAC building mechanics services (heating/cooling) for the following sectors: industrial, commercial…” Source: RevenueBase Database · checked Sep 17, 2026
15	ACE Services Mécaniques	Indirect evidence	Val-d'or, CanadaHQ checked Sep 17, 2026	201-500	89 contacts →
	Indirect evidence “ACE SERVICES MÉCANIQUES ENTRETIEN MÉCANIQUE MOBILE!” Source: RevenueBase Database · checked Sep 17, 2026
16	Western Mechanical Electrical Millwright Services LTD	Partial evidence	Barrie, ON, CanadaHQ checked Sep 17, 2026	201-500	80 contacts →
	Partial evidence “Since Western was started in 1979, the focus of the company has always been to deliver industrial contracting services to our customers that exceed their expectations.” Source: RevenueBase Database · checked Sep 17, 2026
17	EPM Mecanic	Indirect evidence	Laval, QC, CanadaHQ checked Sep 17, 2026	51-200	67 contacts →
	Indirect evidence “Les origines d’EPM Mecanic remontent à 1978, alors sous le nom d’E.P.M.” Source: RevenueBase Database · checked Sep 17, 2026
18	AIM Industrial INC	Strong evidence	Cambridge, ON, CanadaHQ checked Sep 17, 2026	201-500	67 contacts →
	Strong evidence “Industrial Multi-Trade Contracting, Construction and Maintenance Offering Millwrighting, CWB Welding, Rigging, Ironwork, Electrical, Safety and Programming, Sheet Metal…” Source: RevenueBase Database · checked Sep 17, 2026
19	Process Group INC	Partial evidence	Cambridge, ON, CanadaHQ checked Sep 17, 2026	201-500	66 contacts →
	Partial evidence “Process Group Welcome to Industry's single source end-to-end supplier of engineering, procurement, construction and maintenance services to manufacturing plants, process equipment…” Source: RevenueBase Database · checked Sep 17, 2026
20	Whiterose Janitorial Services	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 17, 2026	501-1,000	64 contacts →
	Indirect evidence “Whiterose Janitorial Services Ltd.” Source: RevenueBase Database · checked Sep 17, 2026
21	Lysair	Indirect evidence	Laval, QC, CanadaHQ checked Sep 17, 2026	51-200	63 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 17, 2026
22	Duke Electric	Indirect evidence	Hamilton, CanadaHQ checked Sep 17, 2026	11-50	54 contacts →
	Indirect evidence “If your electrical equipment is more of a pain in the ass than an asset, it’s time to call Duke.” Source: RevenueBase Database · checked Sep 17, 2026
23	LM 1947 INC	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 17, 2026	51-200	53 contacts →
	Indirect evidence “Fondée en 1947, Les Entreprises Électriques L.M, s'est taillée la réputation d'une organisation dynamique et efficace dans la vente et la réparation d'équipement électriques…” Source: RevenueBase Database · checked Sep 17, 2026
24	PSL Patrick Sprack LTD	Indirect evidence	Sudbury, ON, CanadaHQ checked Sep 17, 2026	51-200	51 contacts →
	Indirect evidence “PSL is one of the fastest growing mechanical service providers in Northern Ontario.” Source: RevenueBase Database · checked Sep 17, 2026
25	COGEP	Strong evidence	Quebec Canada, CanadaHQ checked Sep 17, 2026	11-50	51 contacts →
	Strong evidence “About COGEP, Intelligent Maintenance, Simplified COGEP partners with maintenance and operations leaders in complex industrial environments.” Source: RevenueBase Database · checked Sep 17, 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: industrial maintenance providers. 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 industrial maintenance providers.
Partial evidence: Its own public description names part of industrial maintenance providers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name industrial maintenance providers. 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 594 industrial maintenance providers based in Canada

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Industrial maintenance providers based in Canada at a glance

As of Sep 17, 2026

39.0%Verified-email coverage

14.3Average contacts per company

11-50Median size (employees)

4.9%Largest-city concentration · Toronto

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

243

11-50

209

51-200

201-500

501-1,000

1,001-5,000

10001+

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 594 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 industrial maintenance providers, 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 “industrial maintenance providers”. 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 industrial maintenance providers), 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 industrial maintenance providers, 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, 3,319 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 17, 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.

Industrial maintenance providers by metro

Industrial maintenance providers in Toronto29
Industrial maintenance providers in Edmonton25
Industrial maintenance providers in Quebec25

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 industrial maintenance providers, 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 industrial maintenance providers are there based in Canada?

RevenueBase identified 594 industrial maintenance providers 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?

Ainsworth INC, headquartered in Toronto, tops this list with the largest team on record.

Which city has the most industrial maintenance providers?

Toronto leads with 29 headquartered companies, followed by Edmonton (25) and Quebec (25).

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 3,319 verified decision-maker contacts tracked across these 594 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 17, 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.