Company lists · Data refreshed October 2026

Top 25 Hvac system maintenance companies for hospitals based in Canada

Name: Hvac system maintenance companies for hospitals based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 14, 2026 603 companies tracked

RevenueBase identified 603 company matches for hvac system maintenance companies for hospitals associated with Canada as of October 2026 and tracks 4,104 professional contacts across them, including 1,384 with verified work emails. Calgary is the largest hub.

This list covers company matches for hvac system maintenance companies for hospitals 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 October 14, 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 Oct 14, 2026 How this list was built

603Companies

4,104Contacts tracked

1,384Verified emails

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The 25 largest hvac system maintenance companies for hospitals based in Canada

Ranked by team size

Top 25 of 603 company matches for hvac system maintenance companies for hospitals based in Canada, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 14, 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	Right Time Group Of Companies	Exact match	St. Catharines, ON, CanadaHQ recorded Oct 14, 2026	1,001-5,000	198 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 · Oct 14, 2026 · View company records in RevenueBase
2	Arpi's Industries LTD	Exact match	Calgary, AB, CanadaHQ recorded Oct 14, 2026	51-200	153 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 · Oct 14, 2026 · View company records in RevenueBase
3	Olympic International Sales Limited	Exact match	North Vancouver, BC, CanadaHQ recorded Oct 14, 2026	51-200	92 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 · Oct 14, 2026 · View company records in RevenueBase
4	Baulne	Exact match	Lachine, QC, CanadaHQ recorded Oct 14, 2026	51-200	91 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 · Oct 14, 2026 · View company records in RevenueBase
5	Coral Canada Wide LTD	Exact match	Calgary, AB, CanadaHQ recorded Oct 14, 2026	51-200	66 contacts →
	Exact match “Canada's leading, privately owned HVAC-R services company with a proven track record of providing professional Facility Services since 1992.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
6	Lysair	Exact match	Laval, QC, CanadaHQ recorded Oct 14, 2026	51-200	60 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 · Oct 14, 2026 · View company records in RevenueBase
7	Simply Green Home Services INC	Exact match	Toronto, ON, CanadaHQ recorded Oct 14, 2026	201-500	60 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 · Oct 14, 2026 · View company records in RevenueBase
8	GNR Corbus	Exact match	Sherbrooke, QC, CanadaHQ recorded Oct 14, 2026	201-500	59 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 · Oct 14, 2026 · View company records in RevenueBase
9	Ventilabec INC	Exact match	Laval, QC, CanadaHQ recorded Oct 14, 2026	51-200	58 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 · Oct 14, 2026 · View company records in RevenueBase
10	Lar-Mex INC	Exact match	Ottawa, ON, CanadaHQ recorded Oct 14, 2026	51-200	56 contacts →
	Exact match “Lar-Mex with a staff of over 200 employees has been providing heating, ventilation, plumbing and air conditioning (HVAC) services to the National Capital region for over 30 years.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
11	Mécanique RH	Exact match	Laval, QC, CanadaHQ recorded Oct 14, 2026	51-200	55 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 · Oct 14, 2026 · View company records in RevenueBase
12	PSL Patrick Sprack LTD	Exact match	Sudbury, ON, CanadaHQ recorded Oct 14, 2026	51-200	49 contacts →
	Exact match “PSL is one of the fastest growing mechanical service providers in Northern Ontario.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
13	A1 AIR Conditioning & Heating	Exact match	Oakville, ON, CanadaHQ recorded Oct 14, 2026	51-200	44 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 · Oct 14, 2026 · View company records in RevenueBase
14	Major Refrigeration LTD	Exact match	Grimsby, ON, CanadaHQ recorded Oct 14, 2026	51-200	41 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 · Oct 14, 2026 · View company records in RevenueBase
15	Duraclim	Exact match	Montreal, QC, CanadaHQ recorded Oct 14, 2026	51-200	37 contacts →
	Exact match “Chez DuraClim, nous sommes déterminés à garantir votre confort tout au long de l'année.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
16	MC Ventilation	Exact match	Blainville, QC, CanadaHQ recorded Oct 14, 2026	11-50	35 contacts →
	Exact match “L’expertise de MC Ventilation permet aux entreprises du secteur commercial et industriel de Montréal et des environs de profiter d’espaces de vente et de travail dont le climat…” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
17	Airtron Canada	Exact match	Mississauga, ON, CanadaHQ recorded Oct 14, 2026	1,001-5,000	35 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 · Oct 14, 2026 · View company records in RevenueBase
18	Aqua AIR Systems	Exact match	Edmonton, AB, CanadaHQ recorded Oct 14, 2026	11-50	34 contacts →
	Exact match “Mission Statement: At Aqua Air Systems, our goal is to provide our customers with high quality energy efficient products, deliver excellent service with the latest technology and…” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
19	MSB Mechanical	Exact match	Newmarket, ON, CanadaHQ recorded Oct 14, 2026	51-200	31 contacts →
	Exact match “A mechanical contractor serving the GTA, specializing in school and other commercial construction and renovations.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
20	Icom Mechanical Solutions	Exact match	Edmonton, AB, CanadaHQ recorded Oct 14, 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 · Oct 14, 2026 · View company records in RevenueBase
21	Serv-All Mechanical Services LTD	Exact match	Edmonton, AB, CanadaHQ recorded Oct 14, 2026	51-200	30 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
22	Xtra Mechanical Limited	Exact match	Toronto, ON, CanadaHQ recorded Oct 14, 2026	11-50	29 contacts →
	Exact match “Xtra Mechanical Limited is Canada’s leading commercial HVAC provider, offering professional, responsive and safety-driven solutions to the complete product lifecycle, for single…” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
23	Airstream Heating & AIR Conditioning INC	Exact match	Burnaby, BC, CanadaHQ recorded Oct 14, 2026	51-200	27 contacts →
	Exact match “Locally owned and operated for over 35 years, Airstream delivers expert HVAC solutions across the Lower Mainland and Fraser Valley.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
24	Scottish GAS Group INC	Exact match	Toronto, ON, CanadaHQ recorded Oct 14, 2026	1-10	27 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
25	Welldone Mechanical Services	Exact match	Regina, SK, CanadaHQ recorded Oct 14, 2026	11-50	26 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 · Oct 14, 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 “hvac system maintenance companies for hospitals”. 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 603 hvac system maintenance companies for hospitals based in Canada

See the full list, filter by size, metro and specialty, and access 1,384 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Hvac system maintenance companies for hospitals based in Canada at a glance

As of Oct 14, 2026

33.7%Verified-email coverage

6.8Average contacts per company

1-10Median size (employees)

6.6%Largest-city concentration · Calgary

Oct 14, 2026Page data refreshed

Companies by employee count

1-10

300

11-50

233

51-200

201-500

501-1,000

1,001-5,000

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 603 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 “hvac system maintenance companies for hospitals” 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 1,384 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 October 14, 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.

Hvac system maintenance companies for hospitals by metro

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 “hvac system maintenance companies for hospitals”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many hvac system maintenance companies for hospitals are there based in Canada?

RevenueBase identified 603 company matches for hvac system maintenance companies for hospitals associated with Canada as of October 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?

Right Time Group Of Companies tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most hvac system maintenance companies for hospitals?

Calgary leads with 40 company records, followed by Toronto (40) and Mississauga (25).

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 1,384 professional contacts with verified work emails tracked across these 603 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 October 14, 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.