Company lists · Data refreshed September 2026

Top 25 Climate consulting firms based in Toronto, Canada

Name: Climate consulting firms based in Toronto, Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 8, 2026 96 companies tracked

RevenueBase identified 96 climate consulting firms headquartered in Toronto, Canada as of September 2026 and tracks 515 professional contacts across them, including 270 with verified work emails and 44 with mobile numbers. Toronto is the largest hub.

This list covers climate 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 8, 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 8, 2026 86% judged on-target in blind review

96Companies

515Contacts tracked

270Verified emails

44Mobile numbers

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The 25 largest climate consulting firms based in Toronto, Canada

Ranked by team size

Top 25 of 96 climate consulting firms based in Toronto, Canada, ranked by team size, largest first. Data refreshed Sep 8, 2026. RevenueBase Smart Search rates how each company's information relates to climate 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Blackstone Energy Services INC	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 8, 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 8, 2026
2	Quinn Partners	Partial evidence	Toronto, ON, CanadaHQ checked Sep 8, 2026	11-50	53 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 8, 2026
3	Footprint	Partial evidence	Toronto, ON, CanadaHQ checked Sep 8, 2026	11-50	37 contacts →
	Partial evidence “Footprint is a consulting practice comprised of a highly-specialized team of professionals dedicated entirely to sustainability.” Source: RevenueBase Database · checked Sep 8, 2026
4	Goldfin Consulting INC	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 8, 2026	11-50	31 contacts →
	Indirect evidence “Our clients want to do what they’re great at while becoming more sustainable, resilient, and competitive.” Source: RevenueBase Database · checked Sep 8, 2026
5	Adaptis	Indirect evidence	Toronto, CanadaHQ checked Sep 8, 2026	11-50	27 contacts →
	Indirect 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 8, 2026
6	Anyway Solutions	Strong evidence	Toronto, ON, CanadaHQ checked Sep 8, 2026	11-50	14 contacts →
	Strong evidence “AnyWay Solutions is an engineering consulting firm that has been at the forefront of providing climate-resilient solutions for transport infrastructure for over two decades.” Source: RevenueBase Database · checked Sep 8, 2026
7	Watershed Technologies INC	Indirect evidence	Toronto, CanadaHQ checked Sep 8, 2026	11-50	13 contacts →
	Indirect evidence “Watershed offers science and technology based solutions to enable the transition to sustainability.” Source: RevenueBase Database · checked Sep 8, 2026
8	Energy Work INC	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 8, 2026	1-10	12 contacts →
	Indirect evidence “Energy@Work Inc.” Source: RevenueBase Database · checked Sep 8, 2026
9	Plancatalyst	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 8, 2026	1-10	11 contacts →
	Indirect 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 8, 2026
10	Quwa Smart Services	Partial evidence	Toronto, ON, CanadaHQ checked Sep 8, 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 8, 2026
11	Suslop INC	Partial evidence	Toronto, ON, CanadaHQ checked Sep 8, 2026	1-10	9 contacts →
	Partial evidence “Suslop is a management consulting firm.” Source: RevenueBase Database · checked Sep 8, 2026
12	AA Impact INC	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 8, 2026	11-50	7 contacts →
	Indirect 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 8, 2026
13	Hardy Stevenson And Associates Limited	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 8, 2026	1-10	7 contacts →
	Indirect evidence “Hardy Stevenson and Associates Limited (HSAL) is a multi-disciplinary strategic planning and public affairs consultancy, focused on environmental and land use planning, public…” Source: RevenueBase Database · checked Sep 8, 2026
14	Compass Energy Consulting	Partial evidence	Toronto, ON, CanadaHQ checked Sep 8, 2026	1-10	7 contacts →
	Partial 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 8, 2026
15	Internat Energy Solutions Canada	Partial evidence	Toronto, CanadaHQ checked Sep 8, 2026	51-200	7 contacts →
	Partial evidence “Internat Energy Solutions Canada (IESC) was acquired by Dillon Consulting Limited in 2023.” Source: RevenueBase Database · checked Sep 8, 2026
16	Carbonzero Canada	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 8, 2026	1-10	6 contacts →
	Indirect evidence “Carbonzero has been a North American industry leader in greenhouse gas (GHG) measurement, reduction, and offsetting solutions for more than 15 years.” Source: RevenueBase Database · checked Sep 8, 2026
17	KWM Consulting	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 8, 2026	11-50	6 contacts →
	Indirect evidence “At KWM we believe that successful advice goes beyond the achievement of outputs and goals, to empowering our clients to respond in a manner that meets the needs of today and…” Source: RevenueBase Database · checked Sep 8, 2026
18	Village Consulting	Partial evidence	Toronto, ON, CanadaHQ checked Sep 8, 2026	1-10	6 contacts →
	Partial evidence “Sustainability Consultants & Engineers: Village Consulting Inc.” Source: RevenueBase Database · checked Sep 8, 2026
19	Ce3 Group	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 8, 2026	1-10	5 contacts →
	Indirect evidence “With decades of global experience advising organizations of all kinds, the consultants at CE3 Group have witnessed firsthand the power of commitment to sustainable excellence.” Source: RevenueBase Database · checked Sep 8, 2026
20	Independent Environmental Consultants IEC	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 8, 2026	11-50	3 contacts →
	Indirect evidence “WHO WE ARE The success of infrastructure, mining and energy projects in today’s environment requires much more than technical expertise.” Source: RevenueBase Database · checked Sep 8, 2026
21	Laszlo Energy Services	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 8, 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 8, 2026
22	Enliten	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 8, 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 8, 2026
23	Scout Environmental	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 8, 2026	1-10	3 contacts →
	Indirect evidence “At Scout Environmental, we have the passion, vision, and expertise to help individuals, corporations, and communities protect their health and the environment.” Source: RevenueBase Database · checked Sep 8, 2026
24	Viridi Global	Strong evidence	Toronto, ON, CanadaHQ checked Sep 8, 2026	11-50	2 contacts →
	Strong evidence “We are an ESG, sustainability and climate change management consulting firm - started by three Big 4 partners and regional leaders.” Source: RevenueBase Database · checked Sep 8, 2026
25	Delta Consulting	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 8, 2026	1-10	2 contacts →
	Indirect evidence “A multi offering consultancy that brings two decades of experience and partners with you to find the correct solutions that ultimately lead to new efficiencies and sustainability” Source: RevenueBase Database · checked Sep 8, 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: climate consulting 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 climate consulting firms.
Partial evidence: Its own public description names part of climate consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name climate consulting 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 96 climate consulting firms based in Toronto, Canada

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Climate consulting firms based in Toronto, Canada at a glance

As of Sep 8, 2026

52.4%Verified-email coverage

8.5%Mobile-number coverage

5.4Average contacts per company

1-10Median size (employees)

106.2%Largest-city concentration · Toronto

Sep 8, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

2510–30

1931–60

061–90

090–180

0180+

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 climate 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 “climate 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 climate 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 climate 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, 270 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 8, 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.

Climate consulting firms by metro in Canada

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 climate 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 climate consulting firms are there based in Toronto, Canada?

RevenueBase identified 96 climate 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?

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

Which city has the most climate consulting firms?

Toronto leads with 102 headquartered companies, followed by Calgary (80) and Vancouver (63).

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 270 verified decision-maker contacts tracked across these 96 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 8, 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.