Company lists · Data refreshed October 2026

Top 23 Industrial heating contractors based in Toronto, Canada

Name: Industrial heating contractors based in Toronto, Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 16, 2026 64 companies tracked

RevenueBase identified 64 company matches for industrial heating contractors associated with Toronto, Canada as of October 2026 and tracks 1,156 professional contacts across them, including 640 with verified work emails. Across Canada, Calgary is the largest hub for this category (72 companies); Toronto follows with 64.

This list covers company matches for industrial heating contractors associated with Toronto, 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 16, 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 16, 2026 How this list was built

64Companies

1,156Contacts tracked

640Verified emails

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The 23 largest industrial heating contractors based in Toronto, Canada

Ranked by team size

Top 23 of 64 company matches for industrial heating contractors based in Toronto, Canada, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 16, 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	HTS Engineering	Exact match	Toronto, ON, CanadaHQ recorded Oct 16, 2026	1,001-5,000	733 contacts →
	Exact match “Your success is our success.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
2	Simply Green Home Services INC	Exact match	Toronto, ON, CanadaHQ recorded Oct 16, 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 16, 2026 · View company records in RevenueBase
3	Berg Chilling Systems INC	Exact match	Toronto, ON, CanadaHQ recorded Oct 16, 2026	51-200	56 contacts →
	Exact match “Berg Chilling Systems designs, manufactures, installs and services industrial thermal process control systems for a broad range of industries and specialized applications around…” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
4	Scottish GAS Group INC	Exact match	Toronto, ON, CanadaHQ recorded Oct 16, 2026	1-10	27 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
5	Dael Thermal Group INC	Exact match	Toronto, ON, CanadaHQ recorded Oct 16, 2026	51-200	24 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 · Oct 16, 2026 · View company records in RevenueBase
6	Sigma Heating & Cooling	Exact match	Toronto, ON, CanadaHQ recorded Oct 16, 2026	201-500	24 contacts →
	Exact match “Sigma is an HVAC company founded in 1997, serving multiple market sectors.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
7	AIR Heat Supplies	Exact match	Toronto, ON, CanadaHQ recorded Oct 16, 2026	11-50	17 contacts →
	Exact match “We offer high quality, and reliable heating and cooling systems in Ontario.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
8	Mann Engineering	Exact match	Toronto, ON, CanadaHQ recorded Oct 16, 2026	11-50	13 contacts →
	Exact match “Offering a broad range of consulting, engineering, procurement and construction services encompassing virtually all areas of the energy market, including HVAC, boilers, automation…” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
9	Vanguard Mechanical INC	Exact match	Toronto, ON, CanadaHQ recorded Oct 16, 2026	11-50	10 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
10	Hydronic Parts Group LTD	Exact match	Toronto, ON, CanadaHQ recorded Oct 16, 2026	11-50	6 contacts →
	Exact match “At our core we are a commercial HVAC wholesaler.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
11	Canadian Tech AIR Systems INC	Exact match	Toronto, ON, CanadaHQ recorded Oct 16, 2026	11-50	6 contacts →
	Exact match “Established in 1979, Canadian Tech Air Systems Inc.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
12	Ironworks Radiators INC	Exact match	Toronto, ON, CanadaHQ recorded Oct 16, 2026	1-10	6 contacts →
	Exact match “Based in Toronto, our team of heating experts will ensure you get the perfect look for your space through complete personalized service.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
13	Accuserv Heating And AIR Conditioning	Exact match	Toronto, ON, CanadaHQ recorded Oct 16, 2026	11-50	5 contacts →
	Exact match “Accuserv Heating and Air Conditioning is your Toronto source for all of your home HVAC.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
14	Nortown AIR	Exact match	Toronto, ON, CanadaHQ recorded Oct 16, 2026	1-10	5 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
15	AIR Makers INC	Exact match	Toronto, ON, CanadaHQ recorded Oct 16, 2026	11-50	5 contacts →
	Exact match “Founded in 1998 by Fred Zolfaghari, a successful Mechanical Engineer with over 35 years of unmatched experience and expertise, Air Makers is now Toronto’s most trusted source for…” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
16	Cool Check AIR Conditioning LTD	Exact match	Toronto, CanadaHQ recorded Oct 16, 2026	11-50	4 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
17	Kovah Controls Limited	Exact match	Toronto, ON, CanadaHQ recorded Oct 16, 2026	1-10	4 contacts →
	Exact match “Kovah Controls Limited strives to be the electrical controls contractor of choice for building automation systems.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
18	Buxton & Dawe Limited	Exact match	Toronto, ON, CanadaHQ recorded Oct 16, 2026	1-10	4 contacts →
	Exact match “BUXTON & DAWE LTD.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
19	Cozy Comfort Plus	Exact match	Toronto, ON, CanadaHQ recorded Oct 16, 2026	11-50	4 contacts →
	Exact match “Cozy Comfort Plus is a heating and air conditioning solution provider.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
20	National Mechanical AIR LTD	Exact match	Toronto, ON, CanadaHQ recorded Oct 16, 2026	11-50	3 contacts →
	Exact match “We provide HVAC & R related Mechanical services to businesses and multi-residential buildings throughout the Greater Toronto Area.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
21	Lloyd Hvac Services INC	Exact match	Toronto, ON, CanadaHQ recorded Oct 16, 2026	1-10	2 contacts →
	Exact match “At Lloyd HVAC Services we deliver reliable heating, cooling and mechanical solutions for homes and businesses across the Greater Toronto Area.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
22	Hydronic Systems Canada INC	Exact match	Toronto, ON, CanadaHQ recorded Oct 16, 2026	1-10	2 contacts →
	Exact match “HSCI provides sales, distribution, marketing, training and field support for premium brands of heating boilers, controls and accessories for all types of residential and…” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
23	Northern AIR Environmental	Exact match	Toronto, ON, CanadaHQ recorded Oct 16, 2026	1-10	1 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 16, 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 “industrial heating 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 23 of 64 industrial heating contractors based in Toronto, Canada

See the full list, filter by size, metro and specialty, and access 640 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Industrial heating contractors based in Toronto, Canada at a glance

As of Oct 16, 2026

55.4%Verified-email coverage

18.1Average contacts per company

1-10Median size (employees)

Oct 16, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured across the whole Canada list rather than for Toronto, so it is reported there. Company counts and contact totals on this page are exact for Toronto, over 64 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 Toronto, Canada whose business descriptions match “industrial heating 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 640 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 16, 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.

Industrial heating contractors by metro in Canada

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 “industrial heating contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many industrial heating contractors are there based in Toronto, Canada?

RevenueBase identified 64 company matches for industrial heating contractors associated with Toronto, 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?

HTS Engineering tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in Canada has the most industrial heating contractors?

Calgary leads Canada with 72 company records, followed by Toronto (64) and Edmonton (45).

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 640 professional contacts with verified work emails tracked across these 64 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 16, 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.