Company lists · Data refreshed September 2026

Top 25 Energy efficient building contractors based in Toronto, Canada

Name: Energy efficient building contractors based in Toronto, Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 55 companies tracked

RevenueBase identified 55 energy efficient building contractors headquartered in Toronto, Canada as of September 2026 and tracks 391 professional contacts across them, including 194 with verified work emails. Toronto is the largest hub.

This list covers energy efficient building contractors headquartered in Toronto, 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

55Companies

391Contacts tracked

194Verified emails

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The 25 largest energy efficient building contractors based in Toronto, Canada

Ranked by team size

Top 25 of 55 energy efficient building contractors based in Toronto, 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 contractors: 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	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
2	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
3	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
4	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
5	The Aquila Group	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	11-50	26 contacts →
	Indirect evidence “The Aquila Group is a mechanical and electrical engineering firm located at 40 University Ave, Toronto, Ontario, Canada.” Source: RevenueBase Database · checked Sep 16, 2026
6	Enform Architects INC	Strong evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	11-50	19 contacts →
	Strong evidence “At ENFORM we specialize in high performance buildings that use very low amounts of energy.” Source: RevenueBase Database · checked Sep 16, 2026
7	Sustainable	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	1-10	18 contacts →
	Indirect evidence “Sustainable was created in 2009 with a vision to fight climate change through transforming our built environment with creative design.” Source: RevenueBase Database · checked Sep 16, 2026
8	RED Studio Inc. Architects	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	1-10	15 contacts →
	Indirect evidence “RED Studio Inc.” Source: RevenueBase Database · checked Sep 16, 2026
9	Sustainable Buildings Canada	Strong evidence	Toronto, CanadaHQ checked Sep 16, 2026	11-50	12 contacts →
	Strong evidence “Sustainable Buildings Canada SBC educates, supports, and empowers building professionals and policy makers across Canada to achieve greater levels of energy and environmental…” Source: RevenueBase Database · checked Sep 16, 2026
10	Airgenuity INC	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	11-50	12 contacts →
	Indirect evidence “Located in Toronto and servicing all of southern Ontario and Quebec, AirGenuity was founded in as an engineering and integration firm specializing in precision airflow in critical…” Source: RevenueBase Database · checked Sep 16, 2026
11	Duffy & Associates Design Build	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	11-50	12 contacts →
	Indirect evidence “Duffy & Associates employs approximately 15 full time staff.” Source: RevenueBase Database · checked Sep 16, 2026
12	AAA Architects INC	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	11-50	11 contacts →
	Indirect evidence “Based in downtown Toronto, Architects Inc.” Source: RevenueBase Database · checked Sep 16, 2026
13	Coolearth Architecture INC	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	1-10	10 contacts →
	Indirect evidence “We are an architectural firm specializing in sustainable design.” Source: RevenueBase Database · checked Sep 16, 2026
14	Dewson Architects INC	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	1-10	9 contacts →
	Indirect evidence “Founded in 1996, Dewson Architects is an award-winning firm specializing in residential and commercial architecture – contemporary, historical, sustainable.” Source: RevenueBase Database · checked Sep 16, 2026
15	Dynamis Engineering INC	Partial evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	1-10	8 contacts →
	Partial evidence “Building Services - Engineering and Commissioning” Source: RevenueBase Database · checked Sep 16, 2026
16	Green Reason INC	Partial evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	1-10	7 contacts →
	Partial evidence “A sustainable building consulting and project management company.” Source: RevenueBase Database · checked Sep 16, 2026
17	Solares Architecture INC	Strong evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	1-10	7 contacts →
	Strong evidence “We design energy-efficient custom homes that are sustainable, delightful, cost-effective and built to last.” Source: RevenueBase Database · checked Sep 16, 2026
18	Village Consulting	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	1-10	6 contacts →
	Indirect evidence “Sustainability Consultants & Engineers: Village Consulting Inc.” Source: RevenueBase Database · checked Sep 16, 2026
19	Line Architect INC	Strong evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	1-10	6 contacts →
	Strong evidence “LINE Architect is an award winning firm specializing in design of environmentally sustainable, energy efficient buildings and ecological urban solutions using natural systems such…” Source: RevenueBase Database · checked Sep 16, 2026
20	Csei-Intron Engineering INC	Partial evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	11-50	5 contacts →
	Partial evidence “CSEI - INTRON is a full service Mechanical & Electrical professional engineering firm specialized in construction building industry with projects including commercial buildings…” Source: RevenueBase Database · checked Sep 16, 2026
21	WJS Energy	Strong evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	1-10	3 contacts →
	Strong evidence “At WJS, we utilize our in-depth knowledge and advanced analysis capabilities to support the design and optimization of new and existing buildings, with a specialization in energy…” Source: RevenueBase Database · checked Sep 16, 2026
22	LOH Architects Associates INC	Partial evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	11-50	3 contacts →
	Partial evidence “THE PRACTICE: The work of LOH ARCHITECTS Associates Inc is focused on bringing a high-level of design to public, cultural and education purpose buildings.” Source: RevenueBase Database · checked Sep 16, 2026
23	Enliten	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	1-10	3 contacts →
	Indirect evidence “As Canada transitions to a low-carbon economy, we believe that sustainability will drive business growth in every sector.” Source: RevenueBase Database · checked Sep 16, 2026
24	VMF Structures	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	1-10	2 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
25	Fujiwara David Architect	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	1-10	2 contacts →
	Indirect evidence 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 contractors. 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 contractors.
Partial evidence: Its own public description names part of energy efficient building contractors, 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 contractors. 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 55 energy efficient building contractors based in Toronto, Canada

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Energy efficient building contractors based in Toronto, Canada at a glance

As of Sep 16, 2026

49.6%Verified-email coverage

7.1Average contacts per company

1-10Median size (employees)

100.0%Largest-city concentration · Toronto

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

Email recency for this list is measured across the whole Canada list rather than for Toronto, so it is reported there. Company counts and contact totals on this page are exact for Toronto, over 55 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 contractors, 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 Toronto, Canada whose own description of what they do matches “energy efficient building contractors”. 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 contractors), 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 contractors, and records with no verified work email. Companies headquartered outside Toronto 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, 194 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 contractors by metro in Canada

Energy efficient building contractors in Toronto55
Energy efficient building contractors in Vancouver32
Energy efficient building contractors in Montreal26

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 contractors, 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 contractors are there based in Toronto, Canada?

RevenueBase identified 55 energy efficient building contractors headquartered in Toronto, 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?

Inviro Engineered Systems LTD, headquartered in Toronto, tops this list with the largest team on record.

Which city has the most energy efficient building contractors?

Toronto leads with 55 headquartered companies, followed by Vancouver (32) and Montreal (26).

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 194 verified decision-maker contacts tracked across these 55 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.