Company lists · Data refreshed September 2026

Top 25 Commercial building decarbonization firms based in Toronto, Canada

Name: Commercial building decarbonization firms 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 51 companies tracked

RevenueBase identified 51 commercial building decarbonization firms headquartered in Toronto, Canada as of September 2026 and tracks 566 professional contacts across them, including 345 with verified work emails. Toronto is the largest hub.

This list covers commercial building decarbonization firms 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

51Companies

566Contacts tracked

345Verified emails

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The 25 largest commercial building decarbonization firms based in Toronto, Canada

Ranked by team size

Top 25 of 51 commercial building decarbonization firms 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 commercial building decarbonization firms: 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	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
2	Continual Energy INC	Indirect evidence	Toronto, CanadaHQ checked Sep 16, 2026	51-200	55 contacts →
	Indirect evidence “The team at Continual Energy Inc.” Source: RevenueBase Database · checked Sep 16, 2026
3	Diverso Energy	Partial evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	51-200	41 contacts →
	Partial evidence “Diverso Energy is North America’s first fully vertically integrated geothermal utility company, helping developers, building owners, and investors deliver low-carbon heating and…” Source: RevenueBase Database · checked Sep 16, 2026
4	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
5	Enerlife Consulting INC	Partial evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	11-50	30 contacts →
	Partial 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
6	Noventa Energy Partners	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	11-50	27 contacts →
	Indirect evidence “Noventa is a renewable energy company providing proprietary solutions to reduce carbon emissions and manage energy costs through a full suite of services that range from…” Source: RevenueBase Database · checked Sep 16, 2026
7	Enersavings INC	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	51-200	27 contacts →
	Indirect evidence “EnerSavings Inc is committed to providing a sustainable and tailored energy-saving solution, so our customers reduce operating expenses, eliminate maintenance, boost the…” Source: RevenueBase Database · checked Sep 16, 2026
8	Adaptis	Partial evidence	Toronto, CanadaHQ checked Sep 16, 2026	11-50	27 contacts →
	Partial evidence “Adaptis is a diverse team of carbon reduction experts supercharged by a proprietary software platform for evaluating and optimizing building performance, whole-life carbon, and…” Source: RevenueBase Database · checked Sep 16, 2026
9	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
10	Moose Power INC	Partial evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	11-50	12 contacts →
	Partial evidence “Moose Power is one of Ontario’s leading full-service solar developers, specializing in commercial, industrial, and multi-residential rooftop solar projects.” Source: RevenueBase Database · checked Sep 16, 2026
11	Energy Work INC	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	1-10	12 contacts →
	Indirect evidence “Energy@Work Inc.” Source: RevenueBase Database · checked Sep 16, 2026
12	Quwa Smart Services	Partial evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	1-10	11 contacts →
	Partial evidence “Quwa Smart Services Inc (QSS) is a dynamic engineering consulting firm specializing in Energy Management, Decarbonization and Smart Technology Solutions.” Source: RevenueBase Database · checked Sep 16, 2026
13	Bondi Energy	Strong evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	11-50	9 contacts →
	Strong evidence “Bondi’s Energy’s focus is to decarbonize and increase the values of multifamily and commercial buildings through heat pump and energy efficiency retrofits.” Source: RevenueBase Database · checked Sep 16, 2026
14	Ecogrid Technologies INC	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	1-10	8 contacts →
	Indirect evidence “Turn Key Energy Efficiency Solutions Provider” Source: RevenueBase Database · checked Sep 16, 2026
15	Internat Energy Solutions Canada	Indirect evidence	Toronto, CanadaHQ checked Sep 16, 2026	51-200	7 contacts →
	Indirect evidence “Internat Energy Solutions Canada (IESC) was acquired by Dillon Consulting Limited in 2023.” Source: RevenueBase Database · checked Sep 16, 2026
16	Altcrest Energy	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	1-10	6 contacts →
	Indirect evidence “We are a Toronto-based renewable energy developer focused on supporting the real estate industry’s transition to net-zero.” Source: RevenueBase Database · checked Sep 16, 2026
17	Gigawatt	Strong evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	1-10	6 contacts →
	Strong evidence “Gigawatt is a source of energy-efficiency solutions to decarbonize multifamily and commercial buildings.” Source: RevenueBase Database · checked Sep 16, 2026
18	Impact Energy Services INC	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	1-10	6 contacts →
	Indirect evidence “Impact Energy is a trusted name in energy consulting for small to medium size business.” Source: RevenueBase Database · checked Sep 16, 2026
19	BKR Energy INC	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	1-10	5 contacts →
	Indirect evidence “Established in 2016, BKR Energy focuses on using cloud-based smart algorithms and AI to reduce the HVAC system's energy cost and carbon emissions as one of the largest GHG…” Source: RevenueBase Database · checked Sep 16, 2026
20	Laszlo Energy Services	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	1-10	3 contacts →
	Indirect evidence “Laszlo Energy Services is a consultancy providing independent expertise in the fields of urban energy, carbon emissions, low carbon technologies and energy policy.” Source: RevenueBase Database · checked Sep 16, 2026
21	Bosetech	Partial evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	1-10	3 contacts →
	Partial evidence “Bosetech focuses on carbon reduction solutions in the industrial and commercial sectors.” Source: RevenueBase Database · checked Sep 16, 2026
22	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
23	DENSA	Partial evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	1-10	3 contacts →
	Partial evidence “Welcome to DENSA Inc, your go-to Technology Consulting and Solutions Provider that specializes in intelligent building technology.” Source: RevenueBase Database · checked Sep 16, 2026
24	Ject Power Consultants LTD	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	1-10	2 contacts →
	Indirect evidence “At JECT Power, we understand the complexities and challenges that come with renewable energy projects.” Source: RevenueBase Database · checked Sep 16, 2026
25	Zero Nexus	Partial evidence	Toronto, ON, CanadaHQ checked Sep 16, 2026	1-10	2 contacts →
	Partial evidence “We’re a consulting firm focused on decarbonization.” 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: commercial building decarbonization firms. 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 commercial building decarbonization firms.
Partial evidence: Its own public description names part of commercial building decarbonization firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name commercial building decarbonization firms. 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 51 commercial building decarbonization firms based in Toronto, Canada

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Commercial building decarbonization firms based in Toronto, Canada at a glance

As of Sep 16, 2026

61.0%Verified-email coverage

11.1Average 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 51 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 commercial building decarbonization firms, 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 “commercial building decarbonization firms”. 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 commercial building decarbonization firms), 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 commercial building decarbonization firms, 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, 345 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.

Commercial building decarbonization firms by metro in Canada

Commercial building decarbonization firms in Toronto51
Commercial building decarbonization firms in Montreal30
Commercial building decarbonization firms in Vancouver28

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 commercial building decarbonization firms, 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 commercial building decarbonization firms are there based in Toronto, Canada?

RevenueBase identified 51 commercial building decarbonization firms 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?

Blackstone Energy Services INC, headquartered in Toronto, tops this list with the largest team on record.

Which city has the most commercial building decarbonization firms?

Toronto leads with 51 headquartered companies, followed by Montreal (30) and Vancouver (28).

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 345 verified decision-maker contacts tracked across these 51 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.