Company lists · Data refreshed September 2026

Top 25 Hvac design build firms based in Canada

Name: Hvac design build firms based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 1,332 companies tracked

RevenueBase identified 1,332 hvac design build firms headquartered in Canada as of September 2026 and tracks 17,173 professional contacts across them, including 7,515 with verified work emails. Toronto is the largest hub.

This list covers hvac design build firms headquartered in 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 20, 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 20, 2026 86% judged on-target in blind review

1,332Companies

17,173Contacts tracked

7,515Verified emails

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The 25 largest hvac design build firms based in Canada

Ranked by team size

Top 25 of 1,332 hvac design build firms based in Canada, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to hvac design build firms: 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	Modern Niagara	Partial evidence	Kanata, ON, CanadaHQ checked Sep 20, 2026	1,001-5,000	1,556 contacts →
	Partial evidence “We build for life.” Source: RevenueBase Database · checked Sep 20, 2026
2	Cimco Refrigeration INC	Partial evidence	Burlington, ON, CanadaHQ checked Sep 20, 2026	1,001-5,000	738 contacts →
	Partial evidence “CIMCO Refrigeration specializes in the engineering, design, manufacture, installation and service of industrial, process cooling and recreational refrigeration systems.” Source: RevenueBase Database · checked Sep 20, 2026
3	HTS Engineering	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 20, 2026	1,001-5,000	714 contacts →
	Indirect evidence “Your success is our success.” Source: RevenueBase Database · checked Sep 20, 2026
4	Engineered AIR	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 20, 2026	1,001-5,000	471 contacts →
	Indirect evidence “Engineered Air is one of North America's largest manufacturers of Heating, Air Conditioning, Ventilation, Refrigeration, Energy Recovery and Heat Transfer Products.” Source: RevenueBase Database · checked Sep 20, 2026
5	Carmichael Engineering LTD	Partial evidence	Montreal, QC, CanadaHQ checked Sep 20, 2026	501-1,000	400 contacts →
	Partial evidence “Dedicated to Excellence For over a century, Carmichael has been delivering expert solutions in HVAC, industrial refrigeration, automation, combustion, energy, and scientific…” Source: RevenueBase Database · checked Sep 20, 2026
6	Navada	Indirect evidence	Longueuil, QC, CanadaHQ checked Sep 20, 2026	501-1,000	280 contacts →
	Indirect evidence “Thanks to its multidisciplinary team, Navada offers a simple, turnkey approach to building services engineering.” Source: RevenueBase Database · checked Sep 20, 2026
7	Omicron	Strong evidence	Vancouver, BC, CanadaHQ checked Sep 20, 2026	51-200	225 contacts →
	Strong evidence “Omicron is one of the largest integrated design-build firms in Western Canada.” Source: RevenueBase Database · checked Sep 20, 2026
8	Startec Compression & Process And Startec Service	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 20, 2026	51-200	214 contacts →
	Indirect evidence “Founded in 1976, Startec is one of the most trusted names in fit-for-purpose industrial refrigeration equipment and modular gas process solutions.” Source: RevenueBase Database · checked Sep 20, 2026
9	Gateway Mechanical Services	Indirect evidence	Edmonton, AB, CanadaHQ checked Sep 20, 2026	201-500	208 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 20, 2026
10	Ecco Supply	Partial evidence	Langley, BC, CanadaHQ checked Sep 20, 2026	501-1,000	200 contacts →
	Partial evidence “ECCO Supply™ is ALL ABOUT HVAC!” Source: RevenueBase Database · checked Sep 20, 2026
11	Kolostat	Indirect evidence	Laval, QC, CanadaHQ checked Sep 20, 2026	201-500	191 contacts →
	Indirect evidence “Kolostat Inc.” Source: RevenueBase Database · checked Sep 20, 2026
12	Ocean Park Mechanical	Indirect evidence	Surrey, BC, CanadaHQ checked Sep 20, 2026	501-1,000	182 contacts →
	Indirect evidence “Since 1995 Ocean Park Mechanical has delivered exceptional service and outstanding value to our customers.” Source: RevenueBase Database · checked Sep 20, 2026
13	Bronswerk Group	Partial evidence	Brossard, QC, CanadaHQ checked Sep 20, 2026	201-500	176 contacts →
	Partial evidence “BRONSWERK is a leader of HVAC-R systems for Naval/Military and Commercial Marine vessels, with offices around the world.” Source: RevenueBase Database · checked Sep 20, 2026
14	TMI Climate Solutions	Indirect evidence	Pointe-claire, QC, CanadaHQ checked Sep 20, 2026	51-200	157 contacts →
	Indirect evidence “For more than 40 years, TMI Climate Solutions has been committed to manufacturing the highest quality custom air handling units while offering superior customer satisfaction.” Source: RevenueBase Database · checked Sep 20, 2026
15	Haakon Industries LTD	Indirect evidence	Richmond, BC, CanadaHQ checked Sep 20, 2026	201-500	153 contacts →
	Indirect evidence “Haakon Industries is comprised of two divisions under the name Haakon Industries Ltd.” Source: RevenueBase Database · checked Sep 20, 2026
16	Multitech Trades Corp	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 20, 2026	201-500	149 contacts →
	Indirect evidence “MultiTech Trades Corp is a full-service mechanical, electrical, controls, plumbing and building services contractor delivering complex ICI, institutional, and critical…” Source: RevenueBase Database · checked Sep 20, 2026
17	Arpi's Industries LTD	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 20, 2026	51-200	142 contacts →
	Indirect evidence “Arpi’s Industries, a full service mechanical contractor, provides heating, air conditioning, ventilation, plumbing, and air quality solutions to residential and commercial markets.” Source: RevenueBase Database · checked Sep 20, 2026
18	Scott Springfield By Modine	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 20, 2026	501-1,000	133 contacts →
	Indirect evidence “Built With Pride Since 1978, Scott Springfield by Modine is a leading manufacturer of Custom Air Handlers.” Source: RevenueBase Database · checked Sep 20, 2026
19	PML Professional Mechanical LTD	Indirect evidence	Coquitlam, BC, CanadaHQ checked Sep 20, 2026	201-500	129 contacts →
	Indirect evidence “We are PML Professional Mechanical Ltd, a leader in Building Systems in Western Canada.” Source: RevenueBase Database · checked Sep 20, 2026
20	Zero-C	Indirect evidence	Saint-bruno-de-montarville, QC, CanadaHQ checked Sep 20, 2026	201-500	103 contacts →
	Indirect evidence “ZERO-C is the reference in terms of innovation, quality and energy efficiency in the areas of commercial and industrial refrigeration, air conditioning, ventilation, heating and…” Source: RevenueBase Database · checked Sep 20, 2026
21	AIR Wise	Indirect evidence	Hannon, ON, CanadaHQ checked Sep 20, 2026	51-200	92 contacts →
	Indirect evidence “Recognized across North America as a leader in custom Air Handling Units, AWSI is the choice for many Commercial and Industrial owners, engineers and contractors to partner with…” Source: RevenueBase Database · checked Sep 20, 2026
22	Olympic International Sales Limited	Strong evidence	North Vancouver, BC, CanadaHQ checked Sep 20, 2026	51-200	89 contacts →
	Strong evidence “Olympic International is a premier provider of heating, ventilating and air conditioning (HVAC) equipment design, engineering support and training serving Western Canada.” Source: RevenueBase Database · checked Sep 20, 2026
23	Baulne	Partial evidence	Lachine, QC, CanadaHQ checked Sep 20, 2026	51-200	89 contacts →
	Partial evidence “BAULNE is a company based in Montreal and Quebec City, providing HVAC building mechanics services (heating/cooling) for the following sectors: industrial, commercial…” Source: RevenueBase Database · checked Sep 20, 2026
24	Groupe SCV INC	Indirect evidence	Montréal, QC, CanadaHQ checked Sep 20, 2026	51-200	88 contacts →
	Indirect evidence “Groupe SCV is a mechanical and electrical building contractor offering services in the following sectors: commercial, industrial, institutional.” Source: RevenueBase Database · checked Sep 20, 2026
25	Leprohon INC	Indirect evidence	Sherbrooke, QC, CanadaHQ checked Sep 20, 2026	201-500	83 contacts →
	Indirect evidence “Maître dans les domaines de la climatisation, de la ventilation, du chauffage, de la réfrigération et de la géothermie- Résidentiel / Commercial / Industriel - 3 succursales…” Source: RevenueBase Database · checked Sep 20, 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: hvac design build firms. 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 hvac design build firms.
Partial evidence: Its own public description names part of hvac design build firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name hvac design build firms. 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 1,332 hvac design build firms based in Canada

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Hvac design build firms based in Canada at a glance

As of Sep 20, 2026

43.8%Verified-email coverage

12.9Average contacts per company

11-50Median size (employees)

5.5%Largest-city concentration · Toronto

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

627

11-50

461

51-200

185

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 1,332 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 hvac design build firms, 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 Canada whose own description of what they do matches “hvac design build firms”. 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 hvac design build firms), 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 hvac design build firms, and records with no verified work email. Companies headquartered outside Canada 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, 7,515 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 20, 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.

Hvac design build firms by metro

Hvac design build firms in Toronto73
Hvac design build firms in Calgary72
Hvac design build firms in Mississauga53
Hvac design build firms in Edmonton46
Hvac design build firms in Ottawa35
Hvac design build firms in Montreal33
Hvac design build firms in Brampton28
Hvac design build firms in Quebec28
Hvac design build firms in Vaughan28
Hvac design build firms in Winnipeg28
Hvac design build firms in Vancouver26
Hvac design build firms in Burnaby25

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 hvac design build firms, 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 hvac design build firms are there based in Canada?

RevenueBase identified 1,332 hvac design build firms headquartered in 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?

Modern Niagara, headquartered in Kanata, tops this list with the largest team on record.

Which city has the most hvac design build firms?

Toronto leads with 73 headquartered companies, followed by Calgary (72) and Mississauga (53).

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 7,515 verified decision-maker contacts tracked across these 1,332 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 20, 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.