Company lists · Data refreshed September 2026

Top 25 Building decarbonization companies based in Canada

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

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 673 companies tracked

RevenueBase identified 673 building decarbonization companies headquartered in Canada as of September 2026 and tracks 41,511 professional contacts across them, including 23,864 with verified work emails. Toronto is the largest hub.

This list covers building decarbonization 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 16, 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 16, 2026 86% judged on-target in blind review

673Companies

41,511Contacts tracked

23,864Verified emails

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The 25 largest building decarbonization companies based in Canada

Ranked by team size

Top 25 of 673 building decarbonization companies based in Canada, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to building decarbonization 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	Stantec	Indirect evidence	Edmonton, AB, CanadaHQ checked Sep 16, 2026	10001+	28,416 contacts →
	Indirect evidence “Stantec empowers clients, people, and communities to rise to the world’s greatest challenges at a time when the world faces more unprecedented concerns than ever before.” Source: RevenueBase Database · checked Sep 16, 2026
2	Modern Niagara	Indirect evidence	Kanata, ON, CanadaHQ checked Sep 16, 2026	1,001-5,000	1,556 contacts →
	Indirect evidence “We build for life.” Source: RevenueBase Database · checked Sep 16, 2026
3	BPA	Partial evidence	Montréal, QC, CanadaHQ checked Sep 16, 2026	1,001-5,000	882 contacts →
	Partial evidence “IMPACTFUL ENGINEERING At BPA, it’s simple: we are building experts.” Source: RevenueBase Database · checked Sep 16, 2026
4	RWDI	Indirect evidence	Guelph, ON, CanadaHQ checked Sep 16, 2026	501-1,000	737 contacts →
	Indirect evidence “We are a leading global climate and performance engineering consulting firm dedicated to creating harmony between the built and natural world.” Source: RevenueBase Database · checked Sep 16, 2026
5	GBI	Indirect evidence	Montréal, QC, CanadaHQ checked Sep 16, 2026	201-500	456 contacts →
	Indirect evidence “Notre firme de génie-conseil offre une gamme complète de services d’ingénierie, adaptés aux besoins d’une clientèle diversifiée, tant publique que privée.” Source: RevenueBase Database · checked Sep 16, 2026
6	MCW Group Of Companies	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	201-500	363 contacts →
	Indirect evidence “Since 1964 the MCW Group has built a solid reputation for the delivery of Professional Consulting Engineering Services, Energy Management Services, and Engineering Development…” Source: RevenueBase Database · checked Sep 16, 2026
7	RDH Building Science	Partial evidence	Burnaby, BC, CanadaHQ checked Sep 16, 2026	201-500	335 contacts →
	Partial evidence “RDH is a multidisciplinary consulting firm specializing in building performance, durability, and resilience.” Source: RevenueBase Database · checked Sep 16, 2026
8	Ecosystem	Partial evidence	Québec, QC, CanadaHQ checked Sep 16, 2026	201-500	238 contacts →
	Partial evidence “At Ecosystem, we believe in building meaningful relationships with both our clients and employees.” Source: RevenueBase Database · checked Sep 16, 2026
9	Pageau Morel ET Associés INC	Indirect evidence	Montréal, QC, CanadaHQ checked Sep 16, 2026	201-500	234 contacts →
	Indirect evidence “Fondée en 1956, PAGEAU MOREL est une entreprise spécialisée dans les domaines de l'ingénierie mécanique et électrique, de l'efficacité énergétique et de l'écoconception.” Source: RevenueBase Database · checked Sep 16, 2026
10	TWD Technologies LTD	Indirect evidence	Burlington, ON, CanadaHQ checked Sep 16, 2026	201-500	227 contacts →
	Indirect evidence “TWD is a leading global engineering firm focusing on traditional and transitional energy projects and innovative infrastructure projects.” Source: RevenueBase Database · checked Sep 16, 2026
11	Greenfoot Energy Solutions	Indirect evidence	Moncton, NB, CanadaHQ checked Sep 16, 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 16, 2026
12	Cambium INC	Indirect evidence	Peterborough, ON, CanadaHQ checked Sep 16, 2026	51-200	186 contacts →
	Indirect evidence “Cambium is an engineering and consulting firm that guides and supports client decision-making from concept to completion.” Source: RevenueBase Database · checked Sep 16, 2026
13	Montoni	Indirect evidence	Laval, QC, CanadaHQ checked Sep 16, 2026	51-200	168 contacts →
	Indirect evidence “Société de développement en immobilier durable / Bâtir sur parole pour demain / Leader dans le développement immobilier au Québec, MONTONI compte à son actif près de 450 projets…” Source: RevenueBase Database · checked Sep 16, 2026
14	Great Northern Insulation	Partial evidence	Woodstock, ON, CanadaHQ checked Sep 16, 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 16, 2026
15	DNE	Indirect evidence	Kirkland, QC, CanadaHQ checked Sep 16, 2026	51-200	125 contacts →
	Indirect evidence “Your turnkey solution to simple energy management.” Source: RevenueBase Database · checked Sep 16, 2026
16	Sense Engineering	Indirect evidence	Victoria-nanaimo-vancouver-kelowna-calgary-edmonton-hamilton-toronto-ottawa-montréal-halifax, BC, CanadaHQ checked Sep 16, 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 16, 2026
17	Shellex Consulting Group INC	Indirect evidence	Salaberry-de-valleyfield, QC, CanadaHQ checked Sep 16, 2026	51-200	122 contacts →
	Indirect evidence “Shellex is an engineering consulting firm founded in Quebec over twenty years ago.” Source: RevenueBase Database · checked Sep 16, 2026
18	MPN Capital Markets	Indirect evidence	Boston, ON, CanadaHQ checked Sep 16, 2026	11-50	118 contacts →
	Indirect evidence “MPN Capital Markets is a full-service, energy management consulting firm that advises businesses, governments, non-governmental organizations, homeowners and not-for-profits.” Source: RevenueBase Database · checked Sep 16, 2026
19	GLJ LTD	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 16, 2026	51-200	111 contacts →
	Indirect evidence “As global energy consultants, GLJ’s expertise has evolved over the past 50 years to meet the world’s need for responsible, sustainable energy.” Source: RevenueBase Database · checked Sep 16, 2026
20	Blackstone Energy Services INC	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	51-200	98 contacts →
	Indirect evidence “Blackstone Energy is an energy transition company that delivers responsible energy and carbon management.” Source: RevenueBase Database · checked Sep 16, 2026
21	Energy Network Services INC	Indirect evidence	Richmond Hill, ON, CanadaHQ checked Sep 16, 2026	51-200	91 contacts →
	Indirect evidence “Energy Network Services (ENS) is a national, well-known and respected Application Engineering Management Company.” Source: RevenueBase Database · checked Sep 16, 2026
22	SMS Engineering	Partial evidence	Winnipeg, MB, CanadaHQ checked Sep 16, 2026	51-200	84 contacts →
	Partial evidence “Consulting Engineers for Mechanical & Electrical, Energy & Carbon Reduction, Smart Buildings, Power Systems, ICAT, Security, Architectural Lighting & Forensic Engineering.” Source: RevenueBase Database · checked Sep 16, 2026
23	Énergère	Indirect evidence	Montréal, QC, CanadaHQ checked Sep 16, 2026	51-200	81 contacts →
	Indirect evidence “Depuis sa fondation en 1997, Énergère (GDI-Ainsworth) est le leader de la transition énergétique, de l’efficacité énergétique et des réductions des émissions de gaz à effet de…” Source: RevenueBase Database · checked Sep 16, 2026
24	The RPM Groups	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 16, 2026	11-50	80 contacts →
	Indirect evidence “We deliver solutions for our clients because we listen to their needs.” Source: RevenueBase Database · checked Sep 16, 2026
25	Econoler	Partial evidence	Québec, QC, CanadaHQ checked Sep 16, 2026	51-200	75 contacts →
	Partial evidence “Econoler is an international consulting firm specializing in energy efficiency, energy demand-side management, and climate finance, supporting decarbonization efforts worldwide.” Source: RevenueBase Database · checked Sep 16, 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: building decarbonization 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 building decarbonization companies.
Partial evidence: Its own public description names part of building decarbonization companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name building decarbonization 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 673 building decarbonization companies based in Canada

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Building decarbonization companies based in Canada at a glance

As of Sep 16, 2026

57.5%Verified-email coverage

61.7Average contacts per company

1-10Median size (employees)

15.0%Largest-city concentration · Toronto

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

398

11-50

188

51-200

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 673 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 building decarbonization 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 “building decarbonization 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 building decarbonization 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 building decarbonization 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, 23,864 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 16, 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.

Building decarbonization companies 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 building decarbonization 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 building decarbonization companies are there based in Canada?

RevenueBase identified 673 building decarbonization 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?

Stantec, headquartered in Edmonton, tops this list with the largest team on record.

Which city has the most building decarbonization companies?

Toronto leads with 101 headquartered companies, followed by Montreal (45) and Calgary (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 23,864 verified decision-maker contacts tracked across these 673 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 16, 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.