Company lists · Data refreshed September 2026

Top 25 Energy efficient building companies based in Canada

Name: Energy efficient building 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 412 companies tracked

RevenueBase identified 412 energy efficient building companies headquartered in Canada as of September 2026 and tracks 4,216 professional contacts across them, including 2,298 with verified work emails. Toronto is the largest hub.

This list covers energy efficient 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 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

412Companies

4,216Contacts tracked

2,298Verified emails

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The 25 largest energy efficient building companies based in Canada

Ranked by team size

Top 25 of 412 energy efficient building 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 energy efficient 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	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
2	Diamond Schmitt	Partial evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	201-500	325 contacts →
	Partial 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 16, 2026
3	Jayman Built	Strong evidence	Calgary, AB, CanadaHQ checked Sep 16, 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 16, 2026
4	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
5	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
6	GKC Architecture & Design	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 16, 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 16, 2026
7	Graziani Corazza Architects INC	Indirect evidence	Vaughan, ON, CanadaHQ checked Sep 16, 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 16, 2026
8	PMC Energy Limited	Strong evidence	Moncton, NB, CanadaHQ checked Sep 16, 2026	51-200	56 contacts →
	Strong 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 16, 2026
9	Doug Tarry Homes	Partial evidence	St Thomas, ON, CanadaHQ checked Sep 16, 2026	51-200	54 contacts →
	Partial evidence “Doug Tarry Homes successfully blends that latest in creative home design with state-of-the-art home building technology to deliver outstanding value.” Source: RevenueBase Database · checked Sep 16, 2026
10	Sustainable Projects Group SPG	Strong evidence	Calgary, AB, CanadaHQ checked Sep 16, 2026	11-50	53 contacts →
	Strong 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 16, 2026
11	Inviro Engineered Systems LTD	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	51-200	51 contacts →
	Indirect evidence “INVIRO is a full-service Canadian engineering firm specializing in mechanical and electrical systems, along with sustainability consulting.” Source: RevenueBase Database · checked Sep 16, 2026
12	Yelle Maillé Architectes	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 16, 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 16, 2026
13	Integra Architecture INC	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 16, 2026	11-50	45 contacts →
	Indirect evidence “Since Integra Architecture Inc.” Source: RevenueBase Database · checked Sep 16, 2026
14	Great Canadian	Strong evidence	Edmonton, AB, CanadaHQ checked Sep 16, 2026	11-50	44 contacts →
	Strong evidence “Great Canadian sells energy-efficient, new-construction and renovation materials for homes and commercial properties.” Source: RevenueBase Database · checked Sep 16, 2026
15	Architectsalliance	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 16, 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 16, 2026
16	Aodbt Architecture Interior Design	Indirect evidence	Saskatoon, SK, CanadaHQ checked Sep 16, 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 16, 2026
17	Acton Ostry Architects INC	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 16, 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 16, 2026
18	Station ONE Architects	Indirect evidence	Chilliwack, BC, CanadaHQ checked Sep 16, 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 16, 2026
19	Avalon Master Builder	Strong evidence	Calgary, AB, CanadaHQ checked Sep 16, 2026	11-50	36 contacts →
	Strong 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 16, 2026
20	Nejmark Architect	Indirect evidence	Winnipeg, CanadaHQ checked Sep 16, 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 16, 2026
21	Purpose Building INC	Partial evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	11-50	32 contacts →
	Partial evidence “Purpose develops solutions for healthy, long-life buildings that work in a low-carbon, circular economy.” Source: RevenueBase Database · checked Sep 16, 2026
22	EQ Building Performance INC	Partial evidence	Vaughan, ON, CanadaHQ checked Sep 16, 2026	11-50	32 contacts →
	Partial evidence “EQ Building Performance is a collaborative Toronto-based consulting firm.” Source: RevenueBase Database · checked Sep 16, 2026
23	Enerlife Consulting INC	Strong evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	11-50	30 contacts →
	Strong evidence “Enerlife helps owners and managers achieve the full potential of their buildings, drawing on our dynamic national database and experience with leading organizations to provide…” Source: RevenueBase Database · checked Sep 16, 2026
24	Ecovert Member Of BPA	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	11-50	29 contacts →
	Indirect evidence “Ecovert is a full service sustainability consulting firm committed to creating economic, environmental and social synergies for the development sector.” Source: RevenueBase Database · checked Sep 16, 2026
25	Leclerc Architectes	Partial evidence	Montréal, QC, CanadaHQ checked Sep 16, 2026	11-50	28 contacts →
	Partial evidence “Leclerc architectes is 66 years old company with a team of architects and technicians whose experience into public buildings is unrivaled in Montréal.” 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: energy efficient 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 energy efficient building companies.
Partial evidence: Its own public description names part of energy efficient building companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy efficient 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 412 energy efficient building companies based in Canada

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Energy efficient building companies based in Canada at a glance

As of Sep 16, 2026

54.5%Verified-email coverage

10.2Average contacts per company

1-10Median size (employees)

14.1%Largest-city concentration · Toronto

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

276

11-50

113

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 412 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 energy efficient 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 “energy efficient 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 energy efficient 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 energy efficient 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, 2,298 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.

Energy efficient building companies by metro

Energy efficient building companies in Toronto58
Energy efficient building companies in Vancouver37
Energy efficient building companies in Montreal27

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 energy efficient 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 energy efficient building companies are there based in Canada?

RevenueBase identified 412 energy efficient 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?

RDH Building Science, headquartered in Burnaby, tops this list with the largest team on record.

Which city has the most energy efficient building companies?

Toronto leads with 58 headquartered companies, followed by Vancouver (37) and Montreal (27).

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 2,298 verified decision-maker contacts tracked across these 412 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.