Company lists · Data refreshed September 2026

Top 25 Retrofit engineering companies based in Canada

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

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 49 companies tracked

RevenueBase identified 49 retrofit engineering companies headquartered in Canada as of September 2026 and tracks 976 professional contacts across them, including 480 with verified work emails. Toronto is the largest hub.

This list covers retrofit engineering companies 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

49Companies

976Contacts tracked

480Verified emails

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The 25 largest retrofit engineering companies based in Canada

Ranked by team size

Top 25 of 49 retrofit engineering companies 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 engineering 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	Michels Canada	Indirect evidence	Nisku, AB, CanadaHQ checked Sep 17, 2026	10001+	357 contacts →
	Indirect evidence “Michels Canada is an established contractor, leading the industry with innovative methods in infrastructure, power and energy.” 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	Ampere Limited	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 17, 2026	51-200	46 contacts →
	Indirect evidence “Since 1959, Ampere has grown steadily and proudly to become an industry leader in the ICI field, carrying out work in Industrial, Transportation, Commercial and Institutional…” Source: RevenueBase Database · checked Sep 17, 2026
4	G-Tek	Indirect evidence	Laval, QC, CanadaHQ checked Sep 17, 2026	201-500	42 contacts →
	Indirect evidence “Nous sommes un chef de file dans la construction et l'entretien d'infrastructures souterraines, de réseaux de distribution d'électricité et de réseaux de télécommunications.” Source: RevenueBase Database · checked Sep 17, 2026
5	MAT 4site Engineers Limited	Partial evidence	Toronto, ON, CanadaHQ checked Sep 17, 2026	11-50	34 contacts →
	Partial evidence “MAT 4Site Engineers is a privately owned company located in the heart of the GTA that specializes in the design and engineering of Mechanical and Electrical building systems.” Source: RevenueBase Database · checked Sep 17, 2026
6	Mcgregor Allsop Limited	Partial evidence	Toronto, ON, CanadaHQ checked Sep 17, 2026	11-50	28 contacts →
	Partial evidence “Having the technical expertise and insight to conduct retrofit projects in established buildings without affecting the day-to-day business of occupants is our specialty.” Source: RevenueBase Database · checked Sep 17, 2026
7	LCA	Indirect evidence	Gatineau, QC, CanadaHQ checked Sep 17, 2026	11-50	20 contacts →
	Indirect evidence “Are you looking to build, renovate or improve the energy efficiency of your building?” Source: RevenueBase Database · checked Sep 17, 2026
8	Stouffville Glass INC	Partial evidence	Whitchurch-stouffville, ON, CanadaHQ checked Sep 17, 2026	51-200	20 contacts →
	Partial evidence “SGI's main focus is in the Institutional, Commercial, Industrial Market, with a special interest in high-rise retrofit projects.” Source: RevenueBase Database · checked Sep 17, 2026
9	KROME	Indirect evidence	Montréal, QC, CanadaHQ checked Sep 17, 2026	51-200	20 contacts →
	Indirect evidence “KROME is a general contractor specialized in energy efficiency projects, based on a fully integrated and innovative cost effective approach through energy savings and subsidies…” Source: RevenueBase Database · checked Sep 17, 2026
10	Flow Engineering	Strong evidence	Vancouver, BC, CanadaHQ checked Sep 17, 2026	11-50	19 contacts →
	Strong evidence “Flow applies intelligent mechanical and electrical engineering solutions to new and retrofitted buildings throughout western Canada.” Source: RevenueBase Database · checked Sep 17, 2026
11	WOOLA	Indirect evidence	Coquitlam, BC, CanadaHQ checked Sep 17, 2026	11-50	16 contacts →
	Indirect evidence “Building Envelope \|\| Construction \|\| Plumbing \|\| HVAC \|\| Electrical \|\| Generators \|\| Electrical Planning Reports \|\| EV Ready Plans Out Work, Out Perform, Out Play” Source: RevenueBase Database · checked Sep 17, 2026
12	Russ CO Construction	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 17, 2026	11-50	15 contacts →
	Indirect evidence “Specializing in commercial, industrial and institutional renovation, Russco Construction pioneers an innovative, client-focused approach to construction.” Source: RevenueBase Database · checked Sep 17, 2026
13	Circuit Energy	Partial evidence	Toronto, ON, CanadaHQ checked Sep 17, 2026	1-10	11 contacts →
	Partial evidence “We are a full-service Engineering/Contracting Company with partners in various fields of Electrical, Mechanical, Industrial and Civil Engineering.” Source: RevenueBase Database · checked Sep 17, 2026
14	Empirica Infrastructure	Indirect evidence	Burnaby, BC, CanadaHQ checked Sep 17, 2026	11-50	10 contacts →
	Indirect evidence “Since 2008 Empirica has been focused on providing sustainable solutions on infrastructure and tenant improvement projects in Western Canada.” Source: RevenueBase Database · checked Sep 17, 2026
15	SGI Electrical Services INC	Partial evidence	Toronto, ON, CanadaHQ checked Sep 17, 2026	11-50	9 contacts →
	Partial evidence “SGI has been providing new construction and retrofit electrical and communication services in Canada for commercial, industrial and institutional since March 2013, capitalizing on…” Source: RevenueBase Database · checked Sep 17, 2026
16	Sabi Thorne Holdings LTD	Indirect evidence	Stouffville, ON, CanadaHQ checked Sep 17, 2026	51-200	8 contacts →
	Indirect evidence “specializing in the installation of infrastructure” Source: RevenueBase Database · checked Sep 17, 2026
17	Bremner Engineering And Construction LTD	Partial evidence	Canmore, AB, CanadaHQ checked Sep 17, 2026	11-50	7 contacts →
	Partial evidence “Bremner Engineering and Construction Ltd.(BECL), is a COR certified heavy civil construction organization that specializes in industrial, utility and municipal infrastructure…” Source: RevenueBase Database · checked Sep 17, 2026
18	Brick & CO Restorations LTD	Indirect evidence	Kitchener, ON, CanadaHQ checked Sep 17, 2026	11-50	6 contacts →
	Indirect evidence “We specialize in building restoration and revitalization for multi-residential, commercial, industrail and civil applications.” Source: RevenueBase Database · checked Sep 17, 2026
19	Celeb Construction	Indirect evidence	Brossard, QC, CanadaHQ checked Sep 17, 2026	11-50	4 contacts →
	Indirect evidence “Céleb Construction ltée oeuvre dans le domaine de la construction depuis plus de 30 ans.” Source: RevenueBase Database · checked Sep 17, 2026
20	Enginectra	Partial evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	11-50	4 contacts →
	Partial evidence “Enginectra is a growing Engineering Consulting firm providing Mechanical & Electrical Consulting and Design services focused on three core segments: 1.” Source: RevenueBase Database · checked Sep 17, 2026
21	Pop's Restoration LTD	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 17, 2026	51-200	2 contacts →
	Indirect evidence “Pop's Restoration Ltd was established in 2005 as the parent company of Pop's Professional Caulking which was established in 1996 and since then we have grown our staff and…” Source: RevenueBase Database · checked Sep 17, 2026
22	Part Nine Performance INC	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	1-10	2 contacts →
	Indirect evidence “Making Homes Comfortable, Durable, and Efficient Part Nine Performance is dedicated to transforming homes in Calgary and surrounding areas, making them healthier, more…” Source: RevenueBase Database · checked Sep 17, 2026
23	Ikigai Design Solutions	Partial evidence	Toronto, ON, CanadaHQ checked Sep 17, 2026	1-10	2 contacts →
	Partial evidence “At Ikigai Design Solutions, we provide engineering services to companies committed to maximizing the ROI for their engineering efforts.” Source: RevenueBase Database · checked Sep 17, 2026
24	Bentley Systems Group	Indirect evidence	Markham, ON, CanadaHQ checked Sep 17, 2026	1-10	2 contacts →
	Indirect evidence “Today, building owners and property managers are facing both a challenging business environment and an increased need for refitting spaces due to higher tenant turnover.” Source: RevenueBase Database · checked Sep 17, 2026
25	Truman Engineering Services INC	Partial evidence	Toronto, ON, CanadaHQ checked Sep 17, 2026	1-10	2 contacts →
	Partial evidence “Truman Engineering Services is focused on delivering extraordinary client service.” 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 engineering 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 retrofit engineering companies.
Partial evidence: Its own public description names part of retrofit engineering companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name retrofit engineering 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 49 retrofit engineering companies based in Canada

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Retrofit engineering companies based in Canada at a glance

As of Sep 17, 2026

49.2%Verified-email coverage

19.9Average contacts per company

11-50Median size (employees)

22.4%Largest-city concentration · Toronto

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 49 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 engineering 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 Canada whose own description of what they do matches “retrofit engineering 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 retrofit engineering 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 retrofit engineering companies, 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, 480 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.

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 engineering 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 retrofit engineering companies are there based in Canada?

RevenueBase identified 49 retrofit engineering companies 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?

Michels Canada, headquartered in Nisku, tops this list with the largest team on record.

Which city has the most retrofit engineering companies?

Toronto leads with 11 headquartered companies, followed by Montreal (3) and Brampton (2).

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 480 verified decision-maker contacts tracked across these 49 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.