Company lists · Data refreshed September 2026

Top 25 Retrofit contractors based in Canada

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

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 983 companies tracked

RevenueBase identified 983 retrofit contractors headquartered in Canada as of September 2026 and tracks 9,089 professional contacts across them, including 3,167 with verified work emails. Toronto is the largest hub.

This list covers retrofit contractors 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 17, 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 17, 2026 86% judged on-target in blind review

983Companies

9,089Contacts tracked

3,167Verified emails

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The 25 largest retrofit contractors based in Canada

Ranked by team size

Top 25 of 983 retrofit contractors based in Canada, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to retrofit contractors: 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	Trade-Mark Industrial INC	Indirect evidence	Cambridge, ON, CanadaHQ checked Sep 17, 2026	501-1,000	277 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
2	Ecosystem	Indirect evidence	Québec, QC, CanadaHQ checked Sep 17, 2026	201-500	238 contacts →
	Indirect evidence “At Ecosystem, we believe in building meaningful relationships with both our clients and employees.” Source: RevenueBase Database · checked Sep 17, 2026
3	Greenfoot Energy Solutions	Indirect evidence	Moncton, NB, CanadaHQ checked Sep 17, 2026	501-1,000	206 contacts →
	Indirect evidence “Greenfoot Energy Solutions was established in 2014 by a group of energy experts dedicated to improving energy efficiency in Atlantic Canada.” Source: RevenueBase Database · checked Sep 17, 2026
4	Ocean Park Mechanical	Indirect evidence	Surrey, BC, CanadaHQ checked Sep 17, 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 17, 2026
5	Multitech Trades Corp	Partial evidence	Mississauga, ON, CanadaHQ checked Sep 17, 2026	201-500	149 contacts →
	Partial 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 17, 2026
6	Great Northern Insulation	Partial evidence	Woodstock, ON, CanadaHQ checked Sep 17, 2026	201-500	127 contacts →
	Partial evidence “Founded in 1980, Great Northern Insulation is Ontario's leading building envelope service provider, for the new construction and retrofit markets across commercial, institutional…” Source: RevenueBase Database · checked Sep 17, 2026
7	Sense Engineering	Indirect evidence	Victoria-nanaimo-vancouver-kelowna-calgary-edmonton-hamilton-toronto-ottawa-montréal-halifax, BC, CanadaHQ checked Sep 17, 2026	51-200	123 contacts →
	Indirect evidence “Sense Engineering was founded on the desire to provide second-to-none client-centric engineering services.” Source: RevenueBase Database · checked Sep 17, 2026
8	Polaron Energy	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 17, 2026	51-200	123 contacts →
	Indirect evidence “Polaron has defined excellence in Canada’s renewable energy sector since 2013, with proven staying power amid a fast paced industry and a vast portfolio of over installations.” Source: RevenueBase Database · checked Sep 17, 2026
9	Triumph Group Of Companies	Partial evidence	Toronto, ON, CanadaHQ checked Sep 17, 2026	51-200	110 contacts →
	Partial evidence “For over 35 years, Triumph has served Southern Ontario, Alberta and Eastern Canada as the leading roofing and cladding contractor for new building construction, repair…” Source: RevenueBase Database · checked Sep 17, 2026
10	Nightingale Electrical LTD	Indirect evidence	Richmond, BC, CanadaHQ checked Sep 17, 2026	201-500	107 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
11	Duron Ontario LTD	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 17, 2026	51-200	91 contacts →
	Indirect evidence “Duron Ontario was founded in 1959 and provides a range of construction specialties including structural rehabilitation, waterproofing, mastic, concrete finishing and specialized…” Source: RevenueBase Database · checked Sep 17, 2026
12	Brook Restoration LTD	Partial evidence	Toronto, ON, CanadaHQ checked Sep 17, 2026	201-500	88 contacts →
	Partial evidence “Trusted as the preeminent building and public infrastructure restoration contractor in Canada that is sought after for our commitment to safety, quality, value, innovation, and…” Source: RevenueBase Database · checked Sep 17, 2026
13	Hoover Mechanical Plumbing & Heating LTD	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	51-200	82 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
14	Meadowbrook	Partial evidence	Mississauga, ON, CanadaHQ checked Sep 17, 2026	51-200	79 contacts →
	Partial evidence “Meadowbrook is a fully integrated multi-trade contractor and one-stop source for all building electrical, mechanical and construction needs.” Source: RevenueBase Database · checked Sep 17, 2026
15	Allwest Electric LTD	Partial evidence	Port Coquitlam, BC, CanadaHQ checked Sep 17, 2026	201-500	79 contacts →
	Partial evidence “Western Canada’s Most Dynamic Electrical Contractor As a full-service electrical contractor, Allwest Electric Ltd.” Source: RevenueBase Database · checked Sep 17, 2026
16	Heatherbrae Builders	Indirect evidence	Richmond, BC, CanadaHQ checked Sep 17, 2026	51-200	77 contacts →
	Indirect evidence “Originally founded in 1989 by Michael Knight and is now led by Dave Knight and Tim Knight, Heatherbrae is a BC owned and operated general contracting and construction management…” Source: RevenueBase Database · checked Sep 17, 2026
17	CMS Group LTD	Indirect evidence	Scarborough, ON, CanadaHQ checked Sep 17, 2026	201-500	70 contacts →
	Indirect evidence “In 1981, Commercial Mechanical Services began.” Source: RevenueBase Database · checked Sep 17, 2026
18	Birnie Electric Limited	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 17, 2026	51-200	68 contacts →
	Indirect evidence “Founded in 1967, Birnie Electric Limited is a family owned and operated company that provides design/build, electrical contracting and datacomm services to developers and…” Source: RevenueBase Database · checked Sep 17, 2026
19	LPI Mechanical	Indirect evidence	Brampton, ON, CanadaHQ checked Sep 17, 2026	51-200	67 contacts →
	Indirect evidence “For the last 24 years, LPI Mechanical Inc.” Source: RevenueBase Database · checked Sep 17, 2026
20	Westcana Electric INC	Indirect evidence	Prince George, BC, CanadaHQ checked Sep 17, 2026	201-500	67 contacts →
	Indirect evidence “Welcome to Westcana Electric!” Source: RevenueBase Database · checked Sep 17, 2026
21	Lysair	Indirect evidence	Laval, QC, CanadaHQ checked Sep 17, 2026	51-200	63 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 17, 2026
22	PMC Energy Limited	Indirect evidence	Moncton, NB, CanadaHQ checked Sep 17, 2026	51-200	56 contacts →
	Indirect evidence “Considering over 40% of all energy is consumed by buildings, it is no wonder building managers and owners are becoming increasingly mindful of energy costs and usage.” Source: RevenueBase Database · checked Sep 17, 2026
23	Continual Energy INC	Indirect evidence	Toronto, CanadaHQ checked Sep 17, 2026	51-200	55 contacts →
	Indirect evidence “The team at Continual Energy Inc.” Source: RevenueBase Database · checked Sep 17, 2026
24	CES Group	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 17, 2026	51-200	54 contacts →
	Indirect evidence “CES Group is C.E.S Engineering Ltd.” Source: RevenueBase Database · checked Sep 17, 2026
25	Opus Mechanical Services LTD	Indirect evidence	Vaughan, ON, CanadaHQ checked Sep 17, 2026	51-200	54 contacts →
	Indirect evidence “Welcome to OPUS Mechanical Services Ltd!” Source: RevenueBase Database · checked Sep 17, 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: retrofit contractors. 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 retrofit contractors.
Partial evidence: Its own public description names part of retrofit contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name retrofit contractors. 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 983 retrofit contractors based in Canada

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Retrofit contractors based in Canada at a glance

As of Sep 17, 2026

34.8%Verified-email coverage

9.2Average contacts per company

11-50Median size (employees)

8.7%Largest-city concentration · Toronto

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

458

11-50

341

51-200

139

201-500

501-1,000

1,001-5,000

10001+

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 983 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 retrofit contractors, 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 “retrofit contractors”. 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 retrofit contractors), 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 retrofit contractors, 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, 3,167 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 17, 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.

Retrofit contractors by metro

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 retrofit contractors, 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 retrofit contractors are there based in Canada?

RevenueBase identified 983 retrofit contractors 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?

Trade-Mark Industrial INC, headquartered in Cambridge, tops this list with the largest team on record.

Which city has the most retrofit contractors?

Toronto leads with 86 headquartered companies, followed by Calgary (47) and Vancouver (44).

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 3,167 verified decision-maker contacts tracked across these 983 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 17, 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.