Company lists · Data refreshed September 2026

Top 25 Industrial hvac companies based in Mississauga, Canada

Name: Industrial hvac companies based in Mississauga, Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 71 companies tracked

RevenueBase identified 71 industrial hvac companies headquartered in Mississauga, Canada as of September 2026 and tracks 1,029 professional contacts across them, including 337 with verified work emails. Toronto is the largest hub.

This list covers industrial hvac companies headquartered in Mississauga, 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 21, 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 21, 2026 86% judged on-target in blind review

71Companies

1,029Contacts tracked

337Verified emails

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The 25 largest industrial hvac companies based in Mississauga, Canada

Ranked by team size

Top 25 of 71 industrial hvac companies based in Mississauga, Canada, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to industrial hvac companies: 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	Northern Dock Systems	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 21, 2026	51-200	72 contacts →
	Indirect evidence “Northern Docks Systems is an industry leader in the sales and service of energy-efficient products including air barriers, high-speed doors, HVLS Fans and loading dock equipment.” Source: RevenueBase Database · checked Sep 21, 2026
2	Mits Airconditioning INC	Partial evidence	Mississauga, ON, CanadaHQ checked Sep 21, 2026	51-200	59 contacts →
	Partial evidence “Founded in 1987 by President, Jack Eliav, Mits Air has grown from a single room operation to an HVAC distribution company with 5 fully stocked branches, 9 distribution warehouses…” Source: RevenueBase Database · checked Sep 21, 2026
3	Nutemp Mechanical Systems LTD	Partial evidence	Mississauga, ON, CanadaHQ checked Sep 21, 2026	51-200	55 contacts →
	Partial evidence “Nutemp Mechanical Systems LTD is a leading comprehensive mechanical heating, ventilation, plumbing, air conditioning and cooling (HVAC/R) contractor.” Source: RevenueBase Database · checked Sep 21, 2026
4	Schwank North America	Partial evidence	Mississauga, ON, CanadaHQ checked Sep 21, 2026	51-200	48 contacts →
	Partial evidence “Schwank has been synonymous with delivering the highest-quality and energy-saving climate systems tailored to endure varying and demanding conditions in commercial, industrial…” Source: RevenueBase Database · checked Sep 21, 2026
5	Temspec INC	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 21, 2026	51-200	46 contacts →
	Indirect evidence “Temspec is a manufacturer of ultra high efficiency vertical stacked fan coil units for the lodging, condominium, student residence, assisted living and army barracks markets and…” Source: RevenueBase Database · checked Sep 21, 2026
6	Hrai Heating, Refrigeration And AIR Conditioning Institute Of Canada	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 21, 2026	11-50	44 contacts →
	Indirect evidence “Founded in 1968, the Heating, Refrigeration and Air Conditioning Institute of Canada (HRAI) is a non-profit national trade association with over 1,400 manufacturers, wholesalers…” Source: RevenueBase Database · checked Sep 21, 2026
7	Kilmer Environmental INC	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 21, 2026	11-50	43 contacts →
	Indirect evidence “Established in 1987, Kilmer Environmental is a privately owned company dedicated to the distribution of superior applied Indoor Air Quality products for temperature and humidity…” Source: RevenueBase Database · checked Sep 21, 2026
8	VCI Controls INC	Indirect evidence	Mississauga, CanadaHQ checked Sep 21, 2026	51-200	36 contacts →
	Indirect evidence “VCI CONTROLS Inc, a part of Dexterra Group, delivers healthy buildings.” Source: RevenueBase Database · checked Sep 21, 2026
9	Berg Industrial Service INC	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 21, 2026	11-50	28 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
10	H.E. Rieckelman INC	Partial evidence	Mississauga, ON, CanadaHQ checked Sep 21, 2026	11-50	27 contacts →
	Partial evidence “We are a full service HVAC distribution company that prides itself on exceptional service, knowledge and a suite of industry leading custom manufactured HVAC products.” Source: RevenueBase Database · checked Sep 21, 2026
11	Certified Building Systems	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 21, 2026	51-200	24 contacts →
	Indirect evidence “Certified Building Systems is a multi-faceted, comprehensive mechanical organization located in Mississauga, ON.” Source: RevenueBase Database · checked Sep 21, 2026
12	Unilux Crfc	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 21, 2026	11-50	22 contacts →
	Indirect evidence “In 1972 Unilux began manufacturing vertical fan coil units as a replacement for radiant baseboard heating in high-rise buildings.” Source: RevenueBase Database · checked Sep 21, 2026
13	The Hvac Service	Partial evidence	Mississauga, ON, CanadaHQ checked Sep 21, 2026	51-200	22 contacts →
	Partial evidence “Heating, ventilation and air conditioning (or HVAC) is a modern technology which maintains temperature, good water pressure and chemical composition within the design parameters.” Source: RevenueBase Database · checked Sep 21, 2026
14	Springbank Mechanical Systems LTD	Partial evidence	Mississauga, ON, CanadaHQ checked Sep 21, 2026	51-200	21 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 21, 2026
15	Gordon R. Williams Corporation	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 21, 2026	11-50	20 contacts →
	Indirect evidence “Gordon R.” Source: RevenueBase Database · checked Sep 21, 2026
16	DBS	Partial evidence	Mississauga, ON, CanadaHQ checked Sep 21, 2026	51-200	16 contacts →
	Partial evidence “dbs was founded in 1978 with 5 employees providing mechanical services to industrial and multi-unit residential clients.” Source: RevenueBase Database · checked Sep 21, 2026
17	Canada Controls	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 21, 2026	1-10	15 contacts →
	Indirect evidence “At Canada Controls, our goal is to help our customers be successful.” Source: RevenueBase Database · checked Sep 21, 2026
18	Cooling Tower Maintenance	Partial evidence	Mississauga, ON, CanadaHQ checked Sep 21, 2026	11-50	15 contacts →
	Partial evidence “CTM services niche markets within the HVAC industry.” Source: RevenueBase Database · checked Sep 21, 2026
19	Furnace King Home Services	Indirect evidence	Mississauga, CanadaHQ checked Sep 21, 2026	11-50	15 contacts →
	Indirect evidence “We are a heating, cooling home comfort company in Mississauga, serving all of the GTA and surrounding areas.” Source: RevenueBase Database · checked Sep 21, 2026
20	Concept AIR Systems Mechanical INC	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 21, 2026	11-50	10 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
21	Maher Heating & Cooling	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 21, 2026	1-10	10 contacts →
	Indirect evidence “At Maher Heating & Cooling, We Provide Repair, Service & Installation of Heating, Air Conditioning, Gas & Electrical Other Major Appliances.” Source: RevenueBase Database · checked Sep 21, 2026
22	Nortek Mechanical Services	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 21, 2026	11-50	8 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
23	DC AIR	Partial evidence	Mississauga, CanadaHQ checked Sep 21, 2026	51-200	8 contacts →
	Partial evidence “New Residential Low-Rise & Mid-Rise HVAC Contractor operating throughout Southern Ontario and Ottawa” Source: RevenueBase Database · checked Sep 21, 2026
24	Kilmer Hvac Service INC	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 21, 2026	1-10	7 contacts →
	Indirect evidence “Our mission is to provide end users the opportunity to have the best possible experience and lowest total cost of ownership of the equipment that Kilmer Environmental represents.” Source: RevenueBase Database · checked Sep 21, 2026
25	Tormac Mechanical Contractors LTD	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 21, 2026	11-50	7 contacts →
	Indirect evidence “The Principals of Tormac Mechanical Contractors Ltd.” Source: RevenueBase Database · checked Sep 21, 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 hvac companies. 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 hvac companies.
Partial evidence: Its own public description names part of industrial hvac companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name industrial hvac companies. 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 71 industrial hvac companies based in Mississauga, Canada

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Industrial hvac companies based in Mississauga, Canada at a glance

As of Sep 21, 2026

32.8%Verified-email coverage

14.5Average contacts per company

11-50Median size (employees)

139.4%Largest-city concentration · Toronto

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Email recency for this list is measured across the whole Canada list rather than for Mississauga, so it is reported there. Company counts and contact totals on this page are exact for Mississauga, over 71 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 hvac companies, 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 Mississauga, Canada whose own description of what they do matches “industrial hvac companies”. 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 hvac companies), 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 hvac companies, and records with no verified work email. Companies headquartered outside Mississauga 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, 337 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 21, 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 hvac companies by metro in Canada

Industrial hvac companies in Toronto99
Industrial hvac companies in Calgary94
Industrial hvac companies in Mississauga71
Industrial hvac companies in Edmonton66
Industrial hvac companies in Montreal47
Industrial hvac companies in Vaughan39
Industrial hvac companies in Ottawa38
Industrial hvac companies in Winnipeg38
Industrial hvac companies in Brampton36
Industrial hvac companies in Quebec36
Industrial hvac companies in Surrey36
Industrial hvac companies in Burnaby35
Industrial hvac companies in Markham27
Industrial hvac companies in Laval26
Industrial hvac companies in London25

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 hvac companies, 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 hvac companies are there based in Mississauga, Canada?

RevenueBase identified 71 industrial hvac companies headquartered in Mississauga, 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?

Northern Dock Systems, headquartered in Mississauga, tops this list with the largest team on record.

Which city has the most industrial hvac companies?

Toronto leads with 99 headquartered companies, followed by Calgary (94) and Mississauga (71).

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 337 verified decision-maker contacts tracked across these 71 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 21, 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.