Company lists · Data refreshed September 2026

Top 25 Sustainable building companies based in Canada

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

Compiled by the RevenueBase Data Team Data refreshed Sep 18, 2026 545 companies tracked

RevenueBase identified 545 sustainable building companies headquartered in Canada as of September 2026 and tracks 5,311 professional contacts across them, including 2,852 with verified work emails. Toronto is the largest hub.

This list covers sustainable building 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 18, 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 18, 2026 86% judged on-target in blind review

545Companies

5,311Contacts tracked

2,852Verified emails

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The 25 largest sustainable building companies based in Canada

Ranked by team size

Top 25 of 545 sustainable building companies based in Canada, ranked by team size, largest first. Data refreshed Sep 18, 2026. RevenueBase Smart Search rates how each company's information relates to sustainable building 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	LEMAY	Indirect evidence	Montréal, QC, CanadaHQ checked Sep 18, 2026	201-500	373 contacts →
	Indirect evidence “Architectes \| Créateurs de changement Depuis plus de 60 ans, nous visons à redessiner l’avenir à travers la conception d’espaces de vie et de possibilités.” Source: RevenueBase Database · checked Sep 18, 2026
2	RDH Building Science	Partial evidence	Burnaby, BC, CanadaHQ checked Sep 18, 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 18, 2026
3	Diamond Schmitt	Strong evidence	Toronto, ON, CanadaHQ checked Sep 18, 2026	201-500	325 contacts →
	Strong evidence “Diamond Schmitt is a global architecture firm designing transformative, purpose-driven, and highly sustainable buildings from its four studios located in Toronto, Vancouver, and…” Source: RevenueBase Database · checked Sep 18, 2026
4	Jayman Built	Strong evidence	Calgary, AB, CanadaHQ checked Sep 18, 2026	201-500	280 contacts →
	Strong evidence “Jayman BUILT has been leading the home building industry in new home construction, sustainable building practices, and energy efficient design in the Calgary area for over 45…” Source: RevenueBase Database · checked Sep 18, 2026
5	Montoni	Indirect evidence	Laval, QC, CanadaHQ checked Sep 18, 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 18, 2026
6	Jodoin Lamarre Pratte Architectes	Indirect evidence	Montréal, QC, CanadaHQ checked Sep 18, 2026	201-500	136 contacts →
	Indirect evidence “Jodoin Lamarre Pratte architectes consacre sa pratique à la conception de projets d’architecture durables et structurants pour la collectivité -principalement dans les domaines…” Source: RevenueBase Database · checked Sep 18, 2026
7	Great Northern Insulation	Partial evidence	Woodstock, ON, CanadaHQ checked Sep 18, 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 18, 2026
8	GKC Architecture & Design	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 18, 2026	51-200	82 contacts →
	Indirect evidence “A national leader in industrial and commercial architecture, GKC Architecture and Design has earned a stellar reputation for its consulting services and technical expertise…” Source: RevenueBase Database · checked Sep 18, 2026
9	Mccallumsather	Indirect evidence	Hamilton, ON, CanadaHQ checked Sep 18, 2026	51-200	80 contacts →
	Indirect evidence “Collaboration invites innovation, making it the cornerstone of our approach.” Source: RevenueBase Database · checked Sep 18, 2026
10	Graziani Corazza Architects INC	Indirect evidence	Vaughan, ON, CanadaHQ checked Sep 18, 2026	11-50	71 contacts →
	Indirect evidence “Graziani + Corazza's fusion of architectural vision and experience is tailor-made to create the singular and iconic.” Source: RevenueBase Database · checked Sep 18, 2026
11	Q4 Architects INC	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 18, 2026	51-200	54 contacts →
	Indirect evidence “Q4 Architects Inc.(Q4A) is a Canadian Architectural practice committed to providing the highest design standards in residential, commercial, and community-centric architecture.” Source: RevenueBase Database · checked Sep 18, 2026
12	Sustainable Projects Group SPG	Partial evidence	Calgary, AB, CanadaHQ checked Sep 18, 2026	11-50	53 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 18, 2026
13	Inviro Engineered Systems LTD	Partial evidence	Toronto, ON, CanadaHQ checked Sep 18, 2026	51-200	51 contacts →
	Partial evidence “INVIRO is a full-service Canadian engineering firm specializing in mechanical and electrical systems, along with sustainability consulting.” Source: RevenueBase Database · checked Sep 18, 2026
14	Yelle Maillé Architectes	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 18, 2026	11-50	48 contacts →
	Indirect evidence “Fondée en 1994, YMa a développé au cours de ces années une expertise reconnue en architecture dans les milieux institutionnels et de la santé, dans les secteurs industriel…” Source: RevenueBase Database · checked Sep 18, 2026
15	Integra Architecture INC	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 18, 2026	11-50	45 contacts →
	Indirect evidence “Since Integra Architecture Inc.” Source: RevenueBase Database · checked Sep 18, 2026
16	Architectsalliance	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 18, 2026	51-200	43 contacts →
	Indirect evidence “architectsAlliance believes that the full spectrum of the built environment should benefit from thoughtful design.” Source: RevenueBase Database · checked Sep 18, 2026
17	Aodbt Architecture Interior Design	Indirect evidence	Saskatoon, SK, CanadaHQ checked Sep 18, 2026	11-50	42 contacts →
	Indirect evidence “Since 1980, aodbt has been offering a full complement of quality architectural and interior design services to a wide variety of private, public, and non-profit clients in…” Source: RevenueBase Database · checked Sep 18, 2026
18	Acton Ostry Architects INC	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 18, 2026	11-50	41 contacts →
	Indirect evidence “Since our inception in 1992, Acton Ostry Architects (AOA) has demonstrated a continuing commitment to the making of architecture that responds thoughtfully to local topography…” Source: RevenueBase Database · checked Sep 18, 2026
19	Windmill Development Group	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 18, 2026	11-50	41 contacts →
	Indirect evidence “Windmill is a visionary real estate development company dedicated to transforming conventional development practices using the triple bottom line approach of people + planet +…” Source: RevenueBase Database · checked Sep 18, 2026
20	Studio JCI	Partial evidence	Toronto, ON, CanadaHQ checked Sep 18, 2026	11-50	40 contacts →
	Partial evidence “At Studio JCI, we provide creative solutions to design challenges and add value throughout the building process to establish elevated architecture for all.” Source: RevenueBase Database · checked Sep 18, 2026
21	Alliance Engineering & Construction LTD	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 18, 2026	51-200	38 contacts →
	Indirect evidence “Alliance offers Mechanical and Electrical Design and Construction services, providing integrated solutions across the industrial, commercial, institutional and high-rise…” Source: RevenueBase Database · checked Sep 18, 2026
22	Station ONE Architects	Indirect evidence	Chilliwack, BC, CanadaHQ checked Sep 18, 2026	51-200	37 contacts →
	Indirect evidence “We are an award-winning multi-disciplinary firm of creative problem-solvers, offering a range of services in architecture, planning, and interior design.” Source: RevenueBase Database · checked Sep 18, 2026
23	Avalon Master Builder	Partial evidence	Calgary, AB, CanadaHQ checked Sep 18, 2026	11-50	36 contacts →
	Partial evidence “Our decision to build energy efficient and environmentally sustainable housing has had a profound effect on our business model and represents the platform for our home…” Source: RevenueBase Database · checked Sep 18, 2026
24	MGA Michael Green Architecture	Partial evidence	Vancouver, BC, CanadaHQ checked Sep 18, 2026	11-50	36 contacts →
	Partial evidence “MGA \| Michael Green Architecture is an architecture and design firm creating innovative, sustainable projects that push the boundaries of technology and construction to benefit…” Source: RevenueBase Database · checked Sep 18, 2026
25	Nejmark Architect	Indirect evidence	Winnipeg, CanadaHQ checked Sep 18, 2026	11-50	34 contacts →
	Indirect evidence “Nejmark Architect has built a reputation for delivering quality projects on schedule, on budget, and with exceptional service since our inception in 1989.” Source: RevenueBase Database · checked Sep 18, 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: sustainable building 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 sustainable building companies.
Partial evidence: Its own public description names part of sustainable building companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name sustainable building 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 545 sustainable building companies based in Canada

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Sustainable building companies based in Canada at a glance

As of Sep 18, 2026

53.7%Verified-email coverage

9.7Average contacts per company

1-10Median size (employees)

13.4%Largest-city concentration · Toronto

Sep 18, 2026Page data refreshed

Companies by employee count

1-10

350

11-50

165

51-200

201-500

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 545 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 sustainable building 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 “sustainable building 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 sustainable building 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 sustainable building 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, 2,852 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 18, 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.

Sustainable building 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 sustainable building 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 sustainable building companies are there based in Canada?

RevenueBase identified 545 sustainable building 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?

LEMAY, headquartered in Montreal, tops this list with the largest team on record.

Which city has the most sustainable building companies?

Toronto leads with 73 headquartered companies, followed by Vancouver (50) and Montreal (43).

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 2,852 verified decision-maker contacts tracked across these 545 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 18, 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.