Company lists · Data refreshed September 2026

Top 25 Greenhouse gas accounting firms based in Canada

Name: Greenhouse gas accounting firms based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 226 companies tracked

RevenueBase identified 226 greenhouse gas accounting firms headquartered in Canada as of September 2026 and tracks 1,604 professional contacts across them, including 733 with verified work emails. Toronto is the largest hub.

This list covers greenhouse gas accounting firms headquartered in 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 28, 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 28, 2026 86% judged on-target in blind review

226Companies

1,604Contacts tracked

733Verified emails

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The 25 largest greenhouse gas accounting firms based in Canada

Ranked by team size

Top 25 of 226 greenhouse gas accounting firms based in Canada, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to greenhouse gas 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	Delphi	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 28, 2026	51-200	89 contacts →
	Indirect evidence “Delphi is a Canadian strategic consulting firm specializing in sustainability and climate change.” Source: RevenueBase Database · checked Sep 28, 2026
2	Akonovia	Indirect evidence	Montréal, CanadaHQ checked Sep 28, 2026	51-200	73 contacts →
	Indirect evidence “Akonovia helps you with your energy efficiency and decarbonization goals.” Source: RevenueBase Database · checked Sep 28, 2026
3	Arcadian Projects INC	Indirect evidence	New Hamburg, ON, CanadaHQ checked Sep 28, 2026	51-200	54 contacts →
	Indirect evidence “Building a Resilient Future, Together At Arcadian Projects, we’re driven by a deep commitment to a better tomorrow.” Source: RevenueBase Database · checked Sep 28, 2026
4	Quinn Partners	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 28, 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 28, 2026
5	Ostrom Climate Solutions INC	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 28, 2026	11-50	39 contacts →
	Indirect evidence “Ostrom Climate is one of North America’s leading providers of carbon management solutions.” Source: RevenueBase Database · checked Sep 28, 2026
6	Highwood Emissions Management	Partial evidence	Calgary, AB, CanadaHQ checked Sep 28, 2026	11-50	34 contacts →
	Partial evidence “We are emissions reduction experts with a vision for a world with near-zero oil & gas methane emissions.” Source: RevenueBase Database · checked Sep 28, 2026
7	Greenstep	Indirect evidence	Kelowna, BC, CanadaHQ checked Sep 28, 2026	11-50	34 contacts →
	Indirect evidence “Founded in 2008 to help businesses and organizations measure and improve sustainability performance, GreenStep provides industry-specific assessments, certifications, tools, and…” Source: RevenueBase Database · checked Sep 28, 2026
8	Energy Performance Services EPS	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 28, 2026	11-50	31 contacts →
	Indirect evidence “For over 34 years, EPS has been a trusted leader in industrial energy efficiency and energy management across Canada and internationally.” Source: RevenueBase Database · checked Sep 28, 2026
9	Panevo	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 28, 2026	11-50	29 contacts →
	Indirect evidence “At Panevo we combine our passion for sustainability and engineering to deliver a portfolio of services that enable organizations to minimize their utility usage, significantly…” Source: RevenueBase Database · checked Sep 28, 2026
10	Ecovert Member Of BPA	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 28, 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 28, 2026
11	Enviro-Experts	Indirect evidence	Laval, QC, CanadaHQ checked Sep 28, 2026	11-50	27 contacts →
	Indirect evidence “Enviro-Experts : Génie et environnement.” Source: RevenueBase Database · checked Sep 28, 2026
12	Adaptis	Indirect evidence	Toronto, CanadaHQ checked Sep 28, 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 28, 2026
13	ARBOR	Partial evidence	Calgary, CanadaHQ checked Sep 28, 2026	11-50	25 contacts →
	Partial evidence “Arbor is a carbon accounting platform that helps companies calculate and reduce emissions to reach net zero.” Source: RevenueBase Database · checked Sep 28, 2026
14	Puresphera	Indirect evidence	Bécancour, QC, CanadaHQ checked Sep 28, 2026	51-200	24 contacts →
	Indirect evidence “PureSphera réduit les émissions de gaz à effet de serre en démantelant les appareils frigorifiques de façon optimale et en détruisant les gaz nocifs pour lutter contre le…” Source: RevenueBase Database · checked Sep 28, 2026
15	SCV Consulting LTD	Indirect evidence	Rockwood, ON, CanadaHQ checked Sep 28, 2026	11-50	21 contacts →
	Indirect evidence “At SCV, our clients come first.” Source: RevenueBase Database · checked Sep 28, 2026
16	Viresco Solutions INC	Indirect evidence	Edmonton, AB, CanadaHQ checked Sep 28, 2026	1-10	20 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
17	Junxion Strategy	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 28, 2026	11-50	19 contacts →
	Indirect evidence “Junxion is a fractional strategy partner for purpose-led boards, CEOs, and their teams.” Source: RevenueBase Database · checked Sep 28, 2026
18	Green SKY Sustainability Consulting INC	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 28, 2026	11-50	18 contacts →
	Indirect evidence “At Green Sky, we believe meaningful climate action begins with informed strategy and verifiable data.” Source: RevenueBase Database · checked Sep 28, 2026
19	Tate Engineering INC	Indirect evidence	Halifax, NS, CanadaHQ checked Sep 28, 2026	11-50	17 contacts →
	Indirect evidence “Tate Engineering is an engineering, project management, and energy consulting firm that defines and solves complex issues related to facility development and operations.” Source: RevenueBase Database · checked Sep 28, 2026
20	Teal Climate	Indirect evidence	CanadaHQ checked Sep 28, 2026	1-10	17 contacts →
	Indirect evidence “TEAL Climate provides tech solutions for climate preservation and helps organizations achieve their sustainability goals.” Source: RevenueBase Database · checked Sep 28, 2026
21	Nasdaq Metrio	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 28, 2026	201-500	16 contacts →
	Indirect evidence “Nasdaq Metrio is a sustainability reporting platform that is fully scalable, powered by our expert technology, sustainability advisory and implementation service teams across the…” Source: RevenueBase Database · checked Sep 28, 2026
22	Coesio	Indirect evidence	Montreal, CanadaHQ checked Sep 28, 2026	11-50	15 contacts →
	Indirect evidence “Depuis près de 15 ans, COESIO accompagne les PME et grandes entreprises dans leur transition durable.” Source: RevenueBase Database · checked Sep 28, 2026
23	Aladaco Consulting INC	Indirect evidence	Cambridge, ON, CanadaHQ checked Sep 28, 2026	11-50	15 contacts →
	Indirect evidence “Founded in 2005, Aladaco Consulting Inc.” Source: RevenueBase Database · checked Sep 28, 2026
24	Greener Solutions	Indirect evidence	Etobicoke, ON, CanadaHQ checked Sep 28, 2026	11-50	15 contacts →
	Indirect evidence “Greener Solutions operates at the intersection of energy, environment, and finance.” Source: RevenueBase Database · checked Sep 28, 2026
25	Equilibrium Engineering	Indirect evidence	Kentville, NS, CanadaHQ checked Sep 28, 2026	11-50	15 contacts →
	Indirect evidence “Equilibrium Engineering was founded in 2009 and is an award-winning energy services firm rooted in sustainable building design and energy conservation.” Source: RevenueBase Database · checked Sep 28, 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: greenhouse gas 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 greenhouse gas accounting firms.
Partial evidence: Its own public description names part of greenhouse gas accounting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name greenhouse gas 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 226 greenhouse gas accounting firms based in Canada

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Greenhouse gas accounting firms based in Canada at a glance

As of Sep 28, 2026

45.7%Verified-email coverage

7.1Average contacts per company

1-10Median size (employees)

18.6%Largest-city concentration · Toronto

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

163

11-50

51-200

201-500

Email recency for this list is measured worldwide rather than for Canada, so it is reported there. Company counts and contact totals on this page are exact for Canada, over 226 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 greenhouse gas 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 Canada whose own description of what they do matches “greenhouse gas 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 greenhouse gas 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 greenhouse gas accounting firms, and records with no verified work email. Companies headquartered outside Canada 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, 733 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 28, 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.

Greenhouse gas accounting firms by metro

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 greenhouse gas 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 greenhouse gas accounting firms are there based in Canada?

RevenueBase identified 226 greenhouse gas accounting firms headquartered in 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?

Delphi, headquartered in Ottawa, tops this list with the largest team on record.

Which city has the most greenhouse gas accounting firms?

Toronto leads with 42 headquartered companies, followed by Montreal (32) and Vancouver (27).

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 733 verified decision-maker contacts tracked across these 226 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 28, 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.