Company lists · Data refreshed October 2026

Top 25 Commercial building retrofit contractors based in Canada

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

Compiled by the RevenueBase Data Team Data refreshed Oct 10, 2026 129 companies tracked

RevenueBase identified 129 company matches for commercial building retrofit contractors associated with Canada as of October 2026 and tracks 1,206 professional contacts across them, including 415 with verified work emails. Toronto is the largest hub.

This list covers company matches for commercial building retrofit contractors associated with 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 10, 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 10, 2026 How this list was built

129Companies

1,206Contacts tracked

415Verified emails

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The 25 largest commercial building retrofit contractors based in Canada

Ranked by team size

Top 25 of 129 company matches for commercial building retrofit contractors based in Canada, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 10, 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	Great Northern Insulation	Exact match	Woodstock, ON, CanadaHQ recorded Oct 10, 2026	201-500	132 contacts →
	Exact match “Founded in 1980, Great Northern Insulation is Ontario's leading building envelope service provider, for the new construction and retrofit markets across commercial, institutional…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
2	PMC Energy Limited	Exact match	Moncton, NB, CanadaHQ recorded Oct 10, 2026	51-200	59 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
3	Sustainable Projects Group SPG	Exact match	Calgary, AB, CanadaHQ recorded Oct 10, 2026	11-50	51 contacts →
	Exact match “Sustainable Projects Group is a design-build energy efficiency company working with industry leaders to help accomplish their energy savings goals by providing them with the…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
4	Ridley Windows & Doors INC	Exact match	Vaughan, ON, CanadaHQ recorded Oct 10, 2026	11-50	33 contacts →
	Exact match “Over the past decade, Ridley has become the leader in historical retro-fit of windows and doors in designated heritage buildings and districts.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
5	CES Group	Exact match	Vancouver, BC, CanadaHQ recorded Oct 10, 2026	51-200	32 contacts →
	Exact match “CES Group is C.E.S Engineering Ltd.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
6	The Dalton Company	Exact match	Vaughan, ON, CanadaHQ recorded Oct 10, 2026	51-200	30 contacts →
	Exact match “Dalton is a client-oriented professional building services firm specializing in planning, building and renovating for the commercial and high-end residential sectors.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
7	Nadir Electric LTD	Exact match	Markham, ON, CanadaHQ recorded Oct 10, 2026	51-200	23 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
8	Relamping Services Canada LTD	Exact match	Brampton, ON, CanadaHQ recorded Oct 10, 2026	11-50	22 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
9	Stouffville Glass INC	Exact match	Whitchurch-stouffville, ON, CanadaHQ recorded Oct 10, 2026	51-200	21 contacts →
	Exact match “SGI's main focus is in the Institutional, Commercial, Industrial Market, with a special interest in high-rise retrofit projects.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
10	LCA	Exact match	Gatineau, QC, CanadaHQ recorded Oct 10, 2026	11-50	20 contacts →
	Exact match “Are you looking to build, renovate or improve the energy efficiency of your building?” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
11	KROME	Exact match	Montréal, QC, CanadaHQ recorded Oct 10, 2026	51-200	17 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
12	Tino Mechanical LTD	Exact match	North Vancouver, BC, CanadaHQ recorded Oct 10, 2026	1-10	17 contacts →
	Exact match “At Tino Mechanical Ltd.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
13	C3 Specialty Glazing Solutions	Exact match	Brampton, ON, CanadaHQ recorded Oct 10, 2026	11-50	16 contacts →
	Exact match “C3 Specialty Glazing Solutions is Canada’s leading curtain wall retrofit company.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
14	Énergie 3r	Exact match	Montreal, QC, CanadaHQ recorded Oct 10, 2026	51-200	16 contacts →
	Exact match “L’efficacité énergétique est la santé de votre bâtiment.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
15	Restorex Contracting LTD	Exact match	Brampton, ON, CanadaHQ recorded Oct 10, 2026	51-200	15 contacts →
	Exact match “Founded in 1992, Restorex ("RX") is a general contractor that specializes in the building restoration and upgrades.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
16	MJM Energy	Exact match	Dartmouth, NS, CanadaHQ recorded Oct 10, 2026	11-50	14 contacts →
	Exact match “As Building Performance Contractors we specialize in services that cover all aspects of improving your home’s performance and energy efficiency.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
17	RDC Fine Homes INC	Exact match	Whistler, BC, CanadaHQ recorded Oct 10, 2026	11-50	13 contacts →
	Exact match “Since 1993, RDC Fine Homes has specialized in the construction and renovation of homes that work better, live better and last better; we are passionate about delivering a better…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
18	Russ CO Construction	Exact match	Montreal, QC, CanadaHQ recorded Oct 10, 2026	11-50	12 contacts →
	Exact match “Specializing in commercial, industrial and institutional renovation, Russco Construction pioneers an innovative, client-focused approach to construction.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
19	Viridian Automation INC	Exact match	Oakville, ON, CanadaHQ recorded Oct 10, 2026	11-50	12 contacts →
	Exact match “viridian is an intelligent building technology integrator, whose primary goal is to help customers to enhance building energy, carbon and operational performance and meet Net-zero…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
20	RAM Mechanical LTD	Exact match	Burnaby, BC, CanadaHQ recorded Oct 10, 2026	11-50	11 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
21	PG Énergie	Exact match	Montréal, CanadaHQ recorded Oct 10, 2026	1-10	11 contacts →
	Exact match “PG Énergie est une jeune entreprise dynamique avec une expertise pointue dans les domaines d’efficacité énergétique et de la mécanique du bâtiment.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
22	Jones Electric Of Kitchener INC	Exact match	Kitchener, ON, CanadaHQ recorded Oct 10, 2026	11-50	11 contacts →
	Exact match “With an emphasis on relationships and customer service, Jones Electric of Kitchener leads the way for excellence with experienced electricians and quality electrical workmanship.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
23	Blue OAK Building Corporation	Exact match	Toronto, ON, CanadaHQ recorded Oct 10, 2026	11-50	10 contacts →
	Exact match “Elevate your commercial or multi-residential space.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
24	Earthrise Building Services	Exact match	Whitehorse, YT, CanadaHQ recorded Oct 10, 2026	1-10	10 contacts →
	Exact match “Earthrise is Yukon's premier retrofit accelerator, dedicated to revolutionizing residential energy retrofit projects and creating cleaner, healthier, and more affordable homes.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
25	Henderson Projects	Exact match	Burnaby, BC, CanadaHQ recorded Oct 10, 2026	11-50	9 contacts →
	Exact match “For over 25 years, Henderson Projects has been a cornerstone in Lower Mainland’s construction industry, known for its unwavering commitment to customer service, meticulous…” Recorded in the RevenueBase company graph · Oct 10, 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 “commercial building retrofit 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 25 of 129 commercial building retrofit contractors based in Canada

See the full list, filter by size, metro and specialty, and access 415 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Commercial building retrofit contractors based in Canada at a glance

As of Oct 10, 2026

34.4%Verified-email coverage

9.3Average contacts per company

1-10Median size (employees)

10.9%Largest-city concentration · Toronto

Oct 10, 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 worldwide rather than for Canada, so it is reported there. Company counts and contact totals on this page are exact for Canada, over 129 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 Canada whose business descriptions match “commercial building retrofit 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 415 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 10, 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.

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

How many commercial building retrofit contractors are there based in Canada?

RevenueBase identified 129 company matches for commercial building retrofit contractors associated with 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?

Great Northern Insulation tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most commercial building retrofit contractors?

Toronto leads with 14 company records, followed by Montreal (9) and Edmonton (6).

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 415 professional contacts with verified work emails tracked across these 129 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 10, 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.