Company lists · Data refreshed October 2026

Top 25 Geothermal system maintenance contractors based in Canada

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

Compiled by the RevenueBase Data Team Data refreshed Oct 13, 2026 552 companies tracked

RevenueBase identified 552 company matches for geothermal system maintenance contractors associated with Canada as of October 2026 and tracks 4,793 professional contacts across them, including 1,342 with verified work emails. Toronto is the largest hub.

This list covers company matches for geothermal system 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 October 13, 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 13, 2026 How this list was built

552Companies

4,793Contacts tracked

1,342Verified emails

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The 25 largest geothermal system maintenance contractors based in Canada

Ranked by team size

Top 25 of 552 company matches for geothermal system maintenance contractors based in Canada, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 13, 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	Reliance Home Comfort	Exact match	Toronto, ON, CanadaHQ recorded Oct 13, 2026	1,001-5,000	1,602 contacts →
	Exact match “As a leader in home services and energy efficient solutions for over 60 years, Reliance Home Comfort® (Reliance) is committed to being the Destination of Choice by delivering…” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
2	Right Time Group Of Companies	Exact match	St. Catharines, ON, CanadaHQ recorded Oct 13, 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 13, 2026 · View company records in RevenueBase
3	Arpi's Industries LTD	Exact match	Calgary, AB, CanadaHQ recorded Oct 13, 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 13, 2026 · View company records in RevenueBase
4	Leprohon INC	Exact match	Sherbrooke, QC, CanadaHQ recorded Oct 13, 2026	201-500	83 contacts →
	Exact match “Maître dans les domaines de la climatisation, de la ventilation, du chauffage, de la réfrigération et de la géothermie- Résidentiel / Commercial / Industriel - 3 succursales…” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
5	Simply Green Home Services INC	Exact match	Toronto, ON, CanadaHQ recorded Oct 13, 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 13, 2026 · View company records in RevenueBase
6	GNR Corbus	Exact match	Sherbrooke, QC, CanadaHQ recorded Oct 13, 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 13, 2026 · View company records in RevenueBase
7	A1 AIR Conditioning & Heating	Exact match	Oakville, ON, CanadaHQ recorded Oct 13, 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 13, 2026 · View company records in RevenueBase
8	Diverso Energy	Exact match	Toronto, ON, CanadaHQ recorded Oct 13, 2026	51-200	43 contacts →
	Exact match “Diverso Energy is North America’s first fully vertically integrated geothermal utility company, helping developers, building owners, and investors deliver low-carbon heating and…” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
9	Confort Expert INC	Exact match	Anjou, QC, CanadaHQ recorded Oct 13, 2026	51-200	37 contacts →
	Exact match “En opération depuis plus de 25 ans, Confort Expert a su gagner la confiance d’acteurs majeurs dans le domaine de l’énergie; nous sommes depuis plusieurs années partenaire…” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
10	Groupe Beaudoin INC	Exact match	Lévis, QC, CanadaHQ recorded Oct 13, 2026	201-500	36 contacts →
	Exact match “Groupe Beaudoin est une fière entreprise familiale depuis maintenant plus de 45 ans.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
11	LES Industries Perform AIR	Exact match	Candiac, QC, CanadaHQ recorded Oct 13, 2026	51-200	36 contacts →
	Exact match “Chef de file au Québec en matière de systèmes de ventilation, climatisation, et chauffage, nous accompagnons l’ensemble de nos clients depuis plus de 30 ans.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
12	NRG Management	Exact match	Winnipeg, MB, CanadaHQ recorded Oct 13, 2026	51-200	35 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 · Oct 13, 2026 · View company records in RevenueBase
13	Climate Works Heating, Cooling & Plumbing	Exact match	Ottawa, ON, CanadaHQ recorded Oct 13, 2026	51-200	33 contacts →
	Exact match “Climate Works is a leading mechanical service provider based in Ottawa, delivering professional heating, cooling, ventilation, and plumbing solutions to commercial, industrial…” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
14	Mienergy	Exact match	Saskatoon, AB, CanadaHQ recorded Oct 13, 2026	51-200	29 contacts →
	Exact match “One of Western Canada's leading renewable energy solutions centre - bringing your solar, geothermal and more.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
15	Airstream Heating & AIR Conditioning INC	Exact match	Burnaby, BC, CanadaHQ recorded Oct 13, 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 13, 2026 · View company records in RevenueBase
16	Geotility Geothermal Installations Corp	Exact match	Kelowna, BC, CanadaHQ recorded Oct 13, 2026	11-50	26 contacts →
	Exact match “GeoTility has been designing, installing, and servicing heating and cooling systems for more than 30 years.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
17	AIR West Mechanical	Exact match	Cochrane, AB, CanadaHQ recorded Oct 13, 2026	51-200	24 contacts →
	Exact match “At Air West Mechanical, we’re dedicated to keeping our community comfortable year-round.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
18	Aéro Mécanique Turcotte INC	Exact match	Laval, QC, CanadaHQ recorded Oct 13, 2026	51-200	23 contacts →
	Exact match “Ayant plus de 25 ans d’expérience dans le domaine de la conception et dans la réalisation en mécanique du bâtiment, AÉRO Mécanique Turcotte inc.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
19	Lisi Services	Exact match	Vaughan, ON, CanadaHQ recorded Oct 13, 2026	11-50	23 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 · Oct 13, 2026 · View company records in RevenueBase
20	Laroche Mécanique DU Bâtiment	Exact match	L'ancienne-lorette, CanadaHQ recorded Oct 13, 2026	51-200	22 contacts →
	Exact match “Fiers bâtisseurs de systèmes et de partenariats fiables depuis 1966.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
21	Enviro Confort	Exact match	Lévis, QC, CanadaHQ recorded Oct 13, 2026	51-200	20 contacts →
	Exact match “ENTREPRENEUR EN CLIMATISATION ET CHAUFFAGE À QUÉBEC ET LÉVIS, À VOTRE SERVICE Enviro Confort, c’est plus de 20 ans d’expertise en tant qu’entrepreneur en climatisation et…” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
22	BBP Énergie	Exact match	Montréal, QC, CanadaHQ recorded Oct 13, 2026	11-50	19 contacts →
	Exact match “Fondé en 1984, BBP Énergie installe et entretient des systèmes de climatisation et de chauffage depuis près de 40 ans.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
23	Wilsons Mechanical	Exact match	Lower Sackville, NS, CanadaHQ recorded Oct 13, 2026	11-50	18 contacts →
	Exact match “Wilsons Mechanical specializes in HVAC system design, installation, and service.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
24	R.B Heating & AIR Conditioning LTD	Exact match	Kemptville, ON, CanadaHQ recorded Oct 13, 2026	11-50	17 contacts →
	Exact match “Kemptville, Ontario Heating,(gas, oil, electric, renewable) Air Conditioning, Heat pumps, Geothermal & Air Source, Refrigeration, Radiant Floor Heating,Sheet Metal, Ventilation…” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
25	Boonstra Heating And AIR Conditioning	Exact match	Burlington, ON, CanadaHQ recorded Oct 13, 2026	11-50	16 contacts →
	Exact match “Boonstra Heating and Air Conditioning, serving Hamilton, Burlington, Oakville and surrounding areas Clarence Boonstra began providing homeowners with home comfort options in 1961.” Recorded in the RevenueBase company graph · Oct 13, 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 “geothermal system 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 552 geothermal system maintenance contractors based in Canada

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Geothermal system maintenance contractors based in Canada at a glance

As of Oct 13, 2026

28.0%Verified-email coverage

8.7Average contacts per company

1-10Median size (employees)

5.4%Largest-city concentration · Toronto

Oct 13, 2026Page data refreshed

Companies by employee count

1-10

277

11-50

208

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 552 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 “geothermal system 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 1,342 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 13, 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 “geothermal system maintenance contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many geothermal system maintenance contractors are there based in Canada?

RevenueBase identified 552 company matches for geothermal system maintenance contractors 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?

Reliance Home Comfort tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most geothermal system maintenance contractors?

Toronto leads with 30 company records, followed by Calgary (28) and Mississauga (15).

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 1,342 professional contacts with verified work emails tracked across these 552 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 13, 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.