Company lists · Data refreshed September 2026

Top 25 Sustainable energy consulting firms based in Toronto, Canada

RevenueBase identified 116 sustainable energy consulting firms headquartered in Toronto, Canada as of September 2026 and tracks 895 professional contacts across them, including 520 with verified work emails. Toronto is the largest hub.

This list covers sustainable energy consulting 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 21, 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 21, 2026 86% judged on-target in blind review
116Companies
895Contacts tracked
520Verified emails
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The 25 largest sustainable energy consulting firms based in Toronto, Canada

Ranked by team size
Top 25 of 116 sustainable energy consulting firms based in Toronto, Canada, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to sustainable energy consulting 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Strong evidenceToronto, ON, CanadaHQ checked Sep 21, 202651-200166 contacts →

Strong evidence

“Enwave Energy Corporation is a fully integrated, sustainable energy services provider with operations in Toronto, Windsor, London, Markham, and Charlottetown.”

Source: RevenueBase Database · checked Sep 21, 2026
2Partial evidenceToronto, ON, CanadaHQ checked Sep 21, 202651-20098 contacts →

Partial evidence

“Blackstone Energy is an energy transition company that delivers responsible energy and carbon management.”

Source: RevenueBase Database · checked Sep 21, 2026
3Partial evidenceToronto, ON, CanadaHQ checked Sep 21, 202611-5053 contacts →

Partial evidence

“Quinn+Partners is a leading management consultancy specializing in corporate sustainability, sustainable finance, climate change and responsible investment advisory services.”

Source: RevenueBase Database · checked Sep 21, 2026
4Strong evidenceToronto, ON, CanadaHQ checked Sep 21, 202611-5037 contacts →

Strong evidence

“Footprint is a consulting practice comprised of a highly-specialized team of professionals dedicated entirely to sustainability.”

Source: RevenueBase Database · checked Sep 21, 2026
5Partial evidenceToronto, ON, CanadaHQ checked Sep 21, 202611-5031 contacts →

Partial evidence

“Our clients want to do what they’re great at while becoming more sustainable, resilient, and competitive.”

Source: RevenueBase Database · checked Sep 21, 2026
6Partial evidenceToronto, ON, CanadaHQ checked Sep 21, 202611-5030 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 21, 2026
7Strong evidenceToronto, ON, CanadaHQ checked Sep 21, 202611-5029 contacts →

Strong 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 21, 2026
8Strong evidenceToronto, ON, CanadaHQ checked Sep 21, 202611-5028 contacts →

Strong evidence

“CD SONTER, an industry leader in sustainable solutions, provides waste auditing and environmental consulting, and project management of environmental awards and certifications.”

Source: RevenueBase Database · checked Sep 21, 2026
9Partial evidenceToronto, ON, CanadaHQ checked Sep 21, 202611-5027 contacts →

Partial 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 21, 2026
10Strong evidenceToronto, ON, CanadaHQ checked Sep 21, 202651-20027 contacts →

Strong 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 21, 2026
11Indirect evidenceToronto, ON, CanadaHQ checked Sep 21, 202611-5019 contacts →

Indirect evidence

“We help clients - whether it is managing growth opportunities, introducing new technologies, fostering behavioural change or opening profit bottlenecks.”

Source: RevenueBase Database · checked Sep 21, 2026
12Strong evidenceToronto, ON, CanadaHQ checked Sep 21, 202611-5019 contacts →

Strong evidence

“At Green Integrations, we’re committed to making sustainable energy solutions practical, accessible, and impactful.”

Source: RevenueBase Database · checked Sep 21, 2026
13Partial evidenceToronto, ON, CanadaHQ checked Sep 21, 202611-5018 contacts →

Partial evidence

“Since 1983, Hemson Consulting Ltd.”

Source: RevenueBase Database · checked Sep 21, 2026
14Indirect evidenceToronto, ON, CanadaHQ checked Sep 21, 202651-20017 contacts →

Indirect evidence

“We are power sector engineers and management consultants joined in our belief that utility, C&I and ESCO companies can be both technologically robust and affordable for their…”

Source: RevenueBase Database · checked Sep 21, 2026
15Partial evidenceToronto, ON, CanadaHQ checked Sep 21, 202611-5014 contacts →

Partial evidence

“JUPITER is your energy partner.”

Source: RevenueBase Database · checked Sep 21, 2026
16Partial evidenceToronto, CanadaHQ checked Sep 21, 202611-5013 contacts →

Partial evidence

“Watershed offers science and technology based solutions to enable the transition to sustainability.”

Source: RevenueBase Database · checked Sep 21, 2026
17Partial evidenceToronto, ON, CanadaHQ checked Sep 21, 20261-1012 contacts →

Partial evidence

Energy@Work Inc.”

Source: RevenueBase Database · checked Sep 21, 2026
18Partial evidenceToronto, ON, CanadaHQ checked Sep 21, 20261-1011 contacts →

Partial evidence

“PlanCatalyst is a subsidiary of Plan International Canada that provides specialized consultancy services in international development and corporate sustainability.”

Source: RevenueBase Database · checked Sep 21, 2026
19Strong evidenceToronto, ON, CanadaHQ checked Sep 21, 20261-1011 contacts →

Strong 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 21, 2026
20Partial evidenceToronto, ON, CanadaHQ checked Sep 21, 20261-1010 contacts →

Partial evidence

“We are an architectural firm specializing in sustainable design.”

Source: RevenueBase Database · checked Sep 21, 2026
21Partial evidenceToronto, ON, CanadaHQ checked Sep 21, 20261-109 contacts →

Partial evidence

“Suslop is a management consulting firm.”

Source: RevenueBase Database · checked Sep 21, 2026
22Partial evidenceToronto, ON, CanadaHQ checked Sep 21, 202611-507 contacts →

Partial evidence

“We specialize in guiding and transitioning Energy, Supply Chain and Financial Service businesses towards environmentally conscious and socially responsible practices.”

Source: RevenueBase Database · checked Sep 21, 2026
23Strong evidenceToronto, ON, CanadaHQ checked Sep 21, 20261-107 contacts →

Strong evidence

“A sustainable building consulting and project management company.”

Source: RevenueBase Database · checked Sep 21, 2026
24Strong evidenceToronto, ON, CanadaHQ checked Sep 21, 20261-107 contacts →

Strong evidence

“Compass Energy Consulting (“Compass”) is a boutique management consulting firm that is focused on providing strategic, technical, financial, and development support to the…”

Source: RevenueBase Database · checked Sep 21, 2026
25Strong evidenceToronto, CanadaHQ checked Sep 21, 202651-2007 contacts →

Strong evidence

“Internat Energy Solutions Canada (IESC) was acquired by Dillon Consulting Limited in 2023.”

Source: RevenueBase Database · checked Sep 21, 2026

Showing 25 of 116 sustainable energy consulting firms based in Toronto, Canada

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Sustainable energy consulting firms based in Toronto, Canada at a glance

As of Sep 21, 2026
58.1%Verified-email coverage
7.7Average contacts per company
1-10Median size (employees)
100.0%Largest-city concentration · Toronto
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
80
11-50
31
51-200
5

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 116 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 energy consulting 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 “sustainable energy consulting 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 sustainable energy consulting 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 sustainable energy consulting 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, 520 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 21, 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.

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 energy consulting 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 sustainable energy consulting firms are there based in Toronto, Canada?

RevenueBase identified 116 sustainable energy consulting 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?

Enwave Energy Corporation, headquartered in Toronto, tops this list with the largest team on record.

Which city has the most sustainable energy consulting firms?

Toronto leads with 116 headquartered companies, followed by Calgary (113) and Vancouver (73).

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 520 verified decision-maker contacts tracked across these 116 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 21, 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.