Company lists · Data refreshed September 2026

Top 25 Preventive maintenance contractors based in Canada

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

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 282 companies tracked

RevenueBase identified 282 company matches for preventive maintenance contractors associated with Canada as of September 2026 and tracks 3,652 professional contacts across them, including 1,885 with verified work emails. Toronto is the largest hub.

This list covers company matches for preventive 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 September 17, 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 Sep 17, 2026 How this list was built

282Companies

3,652Contacts tracked

1,885Verified emails

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The 25 largest preventive maintenance contractors based in Canada

Ranked by team size

Top 25 of 282 company matches for preventive maintenance contractors based in Canada, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Ainsworth INC	Exact match	Toronto, ON, CanadaHQ recorded Sep 17, 2026	1,001-5,000	1,405 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 · Sep 17, 2026 · View company records in RevenueBase
2	Gateway Mechanical Services	Exact match	Edmonton, AB, CanadaHQ recorded Sep 17, 2026	201-500	208 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 · Sep 17, 2026 · View company records in RevenueBase
3	STI Maintenance	Exact match	Jonquière, QC, CanadaHQ recorded Sep 17, 2026	51-200	94 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 · Sep 17, 2026 · View company records in RevenueBase
4	EPM Mecanic	Exact match	Laval, QC, CanadaHQ recorded Sep 17, 2026	51-200	67 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 · Sep 17, 2026 · View company records in RevenueBase
5	GNR Corbus	Exact match	Sherbrooke, QC, CanadaHQ recorded Sep 17, 2026	201-500	58 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 · Sep 17, 2026 · View company records in RevenueBase
6	PSL Patrick Sprack LTD	Exact match	Sudbury, ON, CanadaHQ recorded Sep 17, 2026	51-200	51 contacts →
	Exact match “PSL is one of the fastest growing mechanical service providers in Northern Ontario.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	Uptime	Exact match	Surrey, BC, CanadaHQ recorded Sep 17, 2026	51-200	48 contacts →
	Exact match “INSTALL.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	Major Refrigeration LTD	Exact match	Grimsby, ON, CanadaHQ recorded Sep 17, 2026	51-200	43 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 · Sep 17, 2026 · View company records in RevenueBase
9	Speico INC	Exact match	Lasalle, QC, CanadaHQ recorded Sep 17, 2026	201-500	38 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	NRG Management	Exact match	Winnipeg, MB, CanadaHQ recorded Sep 17, 2026	51-200	36 contacts →
	Exact match “Since 1993 the NRG Management team have provided commercial, industrial and institutional clients with a full range of complete energy management systems, bringing comfort…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	Mader Group Canada	Exact match	Calgary, AB, CanadaHQ recorded Sep 17, 2026	51-200	36 contacts →
	Exact match “Mader are heavy equipment maintenance experts delivering quality repairs, preventative maintenance and expert diagnostics.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Neutron Factory Works INC	Exact match	Delta, BC, CanadaHQ recorded Sep 17, 2026	11-50	35 contacts →
	Exact match “At Neutron we specialize in ensuring your production lines run uninterrupted.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	Neve Refrigeration INC Groupe Neve	Exact match	Longueuil, QC, CanadaHQ recorded Sep 17, 2026	11-50	34 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 · Sep 17, 2026 · View company records in RevenueBase
14	Icom Mechanical Solutions	Exact match	Edmonton, AB, CanadaHQ recorded Sep 17, 2026	51-200	30 contacts →
	Exact match “Mechanical systems are critical to building performance-and when they fail, operations, comfort, and costs are all impacted.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	EDL Building Solutions	Exact match	Edmonton, AB, CanadaHQ recorded Sep 17, 2026	51-200	30 contacts →
	Exact match “EDL Building Solutions gives commercial building owners and facility managers peace of mind through reliable, comfortable, and efficient facilities.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	Certified Building Systems	Exact match	Mississauga, ON, CanadaHQ recorded Sep 17, 2026	51-200	24 contacts →
	Exact match “Certified Building Systems is a multi-faceted, comprehensive mechanical organization located in Mississauga, ON.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Pacific West Mechanical	Exact match	Vancouver, BC, CanadaHQ recorded Sep 17, 2026	11-50	24 contacts →
	Exact match “Pacific West Mechanical (est.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	Welldone Mechanical Services	Exact match	Regina, SK, CanadaHQ recorded Sep 17, 2026	11-50	23 contacts →
	Exact match “Welldone Mechanical Services: Delivering Excellence in HVAC Solutions Since 1965 As Saskatchewan's premier HVAC solutions provider, Welldone Mechanical Services combines nearly 60…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	LOK Energy Services INC	Exact match	Calgary, AB, CanadaHQ recorded Sep 17, 2026	51-200	23 contacts →
	Exact match “Since 2001, LOK Energy Services specializes in field maintenance services for critical rotating machinery including steam and gas turbines, generators, and peripheral systems.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Culliton	Exact match	Stratford, ON, CanadaHQ recorded Sep 17, 2026	51-200	22 contacts →
	Exact match “At CULLITON, we know that you want building systems that work.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	Facility Network	Exact match	Milton, ON, CanadaHQ recorded Sep 17, 2026	501-1,000	22 contacts →
	Exact match “The Facility Network Advantage At Facility Network, our commitment to success drives everything we do.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	AIR West Mechanical	Exact match	Cochrane, AB, CanadaHQ recorded Sep 17, 2026	51-200	22 contacts →
	Exact match “At Air West Mechanical, we’re dedicated to keeping our community comfortable year-round.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	Dael Thermal Group INC	Exact match	Toronto, ON, CanadaHQ recorded Sep 17, 2026	51-200	21 contacts →
	Exact match “Complete industrial and commercial solutions: • Combustion • Refrigeration • Chillers • HVAC • Plumbing • Electrical • Turn-key Installations IMMEDIATE SERVICE.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	Springbank Mechanical Systems LTD	Exact match	Mississauga, ON, CanadaHQ recorded Sep 17, 2026	51-200	21 contacts →
	Exact match “Springbank Mechanical Systems Limited Since our inception in 1990, Springbank Mechanical Systems has been providing high quality, 24-hour HVAC and refrigeration services to the…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	Lisi Services	Exact match	Vaughan, ON, CanadaHQ recorded Sep 17, 2026	11-50	21 contacts →
	Exact match “Keeping your mechanical systems flowing is what Lisi does best, and since 1979, we have been doing just that.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “preventive maintenance contractors”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 282 preventive maintenance contractors based in Canada

See the full list, filter by size, metro and specialty, and access 1,885 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Preventive maintenance contractors based in Canada at a glance

As of Sep 17, 2026

51.6%Verified-email coverage

13.0Average contacts per company

11-50Median size (employees)

7.4%Largest-city concentration · Toronto

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

131

11-50

103

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 282 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 “preventive 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 1,885 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 September 17, 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 “preventive maintenance contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many preventive maintenance contractors are there based in Canada?

RevenueBase identified 282 company matches for preventive maintenance contractors associated with Canada as of September 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 preventive maintenance contractors?

Toronto leads with 21 company records, followed by Calgary (20) and Edmonton (14).

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 1,885 professional contacts with verified work emails tracked across these 282 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 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 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.