Company lists · Data refreshed September 2026

Top 25 Carbon accounting firms based in Toronto, Canada

Name: Carbon accounting 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 54 companies tracked

RevenueBase identified 54 carbon accounting firms headquartered in Toronto, Canada as of September 2026 and tracks 356 professional contacts across them, including 163 with verified work emails and 32 with mobile numbers. Toronto is the largest hub.

This list covers carbon accounting 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

54Companies

356Contacts tracked

163Verified emails

32Mobile numbers

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The 25 largest carbon accounting firms based in Toronto, Canada

Ranked by team size

Top 25 of 54 carbon accounting 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 carbon accounting 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	Quinn Partners	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 8, 2026	11-50	53 contacts →
	Indirect 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
2	Footprint	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 8, 2026	11-50	37 contacts →
	Indirect 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
3	Ecovert Member Of BPA	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 8, 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 8, 2026
4	CD Sonter LTD	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 8, 2026	11-50	28 contacts →
	Indirect 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 8, 2026
5	Adaptis	Partial evidence	Toronto, CanadaHQ checked Sep 8, 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 8, 2026
6	DCS Global	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 8, 2026	11-50	13 contacts →
	Indirect evidence “At DCS Global, we support organizations across a wide range of industries and business sectors to achieve cleaner, healthier, more sustainable, cost-effective, and environmentally…” Source: RevenueBase Database · checked Sep 8, 2026
7	Carbonhound	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 8, 2026	1-10	12 contacts →
	Indirect evidence “Let's do good and do well.” 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	Quwa Smart Services	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 8, 2026	1-10	11 contacts →
	Indirect 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
10	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
11	Carbonsuite	Strong evidence	Toronto, ON, CanadaHQ checked Sep 8, 2026	1-10	7 contacts →
	Strong evidence “CarbonSuite is a Built for NetSuite Carbon Accounting and Sustainability Reporting solution.” Source: RevenueBase Database · checked Sep 8, 2026
12	Internat Energy Solutions Canada	Indirect evidence	Toronto, CanadaHQ checked Sep 8, 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 8, 2026
13	Carbonzero Canada	Partial evidence	Toronto, ON, CanadaHQ checked Sep 8, 2026	1-10	6 contacts →
	Partial 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
14	Village Consulting	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 8, 2026	1-10	6 contacts →
	Indirect evidence “Sustainability Consultants & Engineers: Village Consulting Inc.” Source: RevenueBase Database · checked Sep 8, 2026
15	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
16	Bosetech	Partial evidence	Toronto, ON, CanadaHQ checked Sep 8, 2026	1-10	3 contacts →
	Partial evidence “Bosetech focuses on carbon reduction solutions in the industrial and commercial sectors.” Source: RevenueBase Database · checked Sep 8, 2026
17	Enliten	Partial evidence	Toronto, ON, CanadaHQ checked Sep 8, 2026	1-10	3 contacts →
	Partial 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
18	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
19	Carbonone	Strong evidence	Toronto, CanadaHQ checked Sep 8, 2026	1-10	3 contacts →
	Strong evidence “CarbonOne is a carbon accounting platform purpose-built for food, agriculture, and consumer product companies.” Source: RevenueBase Database · checked Sep 8, 2026
20	Viridi Global	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 8, 2026	11-50	2 contacts →
	Indirect 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
21	Boreal Carbon Corporation	Partial evidence	Toronto, ON, CanadaHQ checked Sep 8, 2026	1-10	2 contacts →
	Partial evidence “Boreal Carbon Corporation is a Canadian private company with a vision to become a leading carbon credit developer through the acquisition and management of forestry projects in…” Source: RevenueBase Database · checked Sep 8, 2026
22	Zero Nexus	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 8, 2026	1-10	2 contacts →
	Indirect evidence “We’re a consulting firm focused on decarbonization.” Source: RevenueBase Database · checked Sep 8, 2026
23	Ject Power Consultants LTD	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 8, 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 8, 2026
24	Actinium Partners	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 8, 2026	11-50	1 contacts →
	Indirect evidence “Sustainable Business Growth: We recognize that long-term success requires more than short-term gains.” Source: RevenueBase Database · checked Sep 8, 2026
25	Re3 Solutions	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 8, 2026	1-10	1 contacts →
	Indirect evidence “A consulting and management firm focused on a pragmatic and realistic approach to deploying sustainable solutions for projects, portfolios, and organizations.” 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: carbon accounting 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 carbon accounting firms.
Partial evidence: Its own public description names part of carbon accounting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name carbon accounting 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 54 carbon accounting firms based in Toronto, Canada

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Carbon accounting firms based in Toronto, Canada at a glance

As of Sep 8, 2026

45.8%Verified-email coverage

9.0%Mobile-number coverage

6.6Average contacts per company

1-10Median size (employees)

96.3%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

1480–30

1531–60

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 carbon accounting 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 “carbon accounting 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 carbon accounting 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 carbon accounting 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, 163 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.

Carbon accounting 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 carbon accounting 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 carbon accounting firms are there based in Toronto, Canada?

RevenueBase identified 54 carbon accounting 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?

Quinn Partners, headquartered in Toronto, tops this list with the largest team on record.

Which city has the most carbon accounting firms?

Toronto leads with 52 headquartered companies, followed by Montreal (39) and Calgary (36).

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 163 verified decision-maker contacts tracked across these 54 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.