Company lists · Data refreshed August 2026

Top 25 Climate change consulting firms based in Canada

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

Compiled by the RevenueBase Data Team Data refreshed Aug 31, 2026 759 companies tracked

RevenueBase identified 759 climate change consulting firms headquartered in Canada as of August 2026 and tracks 39,675 professional contacts across them, including 22,097 with verified work emails and 7,256 with mobile numbers. Toronto is the largest hub.

This list covers climate change consulting 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 August 31, 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 RevenueBase Smart Search rating on every row Refreshed Aug 31, 2026 86% judged on-target in blind review

759Companies

39,675Contacts tracked

22,097Verified emails

7,256Mobile numbers

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest climate change consulting firms based in Canada

Ranked by team size

Top 25 of 759 climate change consulting firms based in Canada, ranked by team size, largest first. Data refreshed Aug 31, 2026. RevenueBase Smart Search rates how each company's information relates to climate change 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	Stantec	Indirect evidence	Edmonton, AB, Canada	10001+	28,492 contacts →
	Indirect evidence “Stantec empowers clients, people, and communities to rise to the world’s greatest challenges at a time when the world faces more unprecedented concerns than ever before.” Source: RevenueBase Database · checked Aug 31, 2026
2	DHI	Indirect evidence	Richmond, BC, Canada	1,001-5,000	1,415 contacts →
	Indirect evidence “There is no substitute for water.” Source: RevenueBase Database · checked Aug 31, 2026
3	RWDI	Strong evidence	Victoria, BC, Canada	501-1,000	730 contacts →
	Strong evidence “We are a leading global climate and performance engineering consulting firm dedicated to creating harmony between the built and natural world.” Source: RevenueBase Database · checked Aug 31, 2026
4	GBI	Indirect evidence	Repentigny, QC, Canada	201-500	449 contacts →
	Indirect evidence “Notre firme de génie-conseil offre une gamme complète de services d’ingénierie, adaptés aux besoins d’une clientèle diversifiée, tant publique que privée.” Source: RevenueBase Database · checked Aug 31, 2026
5	EMM Consulting PTY Limited	Indirect evidence	Calgary, AB, Canada	201-500	356 contacts →
	Indirect evidence “At EMM, we believe that a sustainable future is achievable, and we are dedicated to helping our clients and the community make it a reality.” Source: RevenueBase Database · checked Aug 31, 2026
6	Triton Environmental Consultants LTD	Indirect evidence	Calgary, AB, Canada	201-500	352 contacts →
	Indirect evidence “Triton Environmental Consultants knows western Canada.” Source: RevenueBase Database · checked Aug 31, 2026
7	RDH Building Science	Partial evidence	Waterloo, ON, Canada	201-500	333 contacts →
	Partial evidence “RDH is a multidisciplinary consulting firm specializing in building performance, durability, and resilience.” Source: RevenueBase Database · checked Aug 31, 2026
8	PGL Environmental Consultants	Indirect evidence	Victoria, BC, Canada	51-200	183 contacts →
	Indirect evidence “PGL Environmental Consultants consistently provides clients with a high level of support and confidence in our environmental management and planning decisions by combining…” Source: RevenueBase Database · checked Aug 31, 2026
9	EDI Environmental Dynamics INC	Partial evidence	Grande Prairie, BC, Canada	51-200	161 contacts →
	Partial evidence “EDI provides you with practical, environmental consulting services, specializing in aquatic and terrestrial sciences.” Source: RevenueBase Database · checked Aug 31, 2026
10	Keystone Environmental	Indirect evidence	Calgary, AB, Canada	51-200	158 contacts →
	Indirect evidence “Keystone Environmental is a proudly Canadian (owned and operated) full service environmental consultancy helping businesses meet their environmental goals and objectives.” Source: RevenueBase Database · checked Aug 31, 2026
11	DWB Consulting Services LTD	Indirect evidence	Williams Lake, BC, Canada	51-200	120 contacts →
	Indirect evidence “Kintera is a team of 300+ experts delivering environmental, planning, and development capabilities across British Columbia.” Source: RevenueBase Database · checked Aug 31, 2026
12	GLJ LTD	Indirect evidence	Calgary, AB, Canada	51-200	112 contacts →
	Indirect evidence “As global energy consultants, GLJ’s expertise has evolved over the past 50 years to meet the world’s need for responsible, sustainable energy.” Source: RevenueBase Database · checked Aug 31, 2026
13	Associated Environmental Consultants	Indirect evidence	Kelowna, BC, Canada	501-1,000	110 contacts →
	Indirect evidence “Associated Environmental Consultants are experts in environmental science and management with a passion for our work, our communities, and our environment.” Source: RevenueBase Database · checked Aug 31, 2026
14	Groupe Conseil UDA INC	Indirect evidence	Quebec, QC, Canada	51-200	107 contacts →
	Indirect evidence “Depuis plus de 45 ans, le Groupe Conseil UDA Inc.(UDA) accompagne, encadre et soutient ses clients dans leurs projets en environnement, en agriculture et en foresterie grâce à…” Source: RevenueBase Database · checked Aug 31, 2026
15	NVIRA	Partial evidence	Montreal, QC, Canada	51-200	104 contacts →
	Partial evidence “Since 2009, Nvira has established itself as a multidisciplinary environmental engineering consulting firm committed to delivering a distinctive client experience, providing…” Source: RevenueBase Database · checked Aug 31, 2026
16	Blackstone Energy Services INC	Indirect evidence	Toronto, ON, Canada	51-200	96 contacts →
	Indirect evidence “Blackstone Energy is an energy transition company that delivers responsible energy and carbon management.” Source: RevenueBase Database · checked Aug 31, 2026
17	Delphi	Strong evidence	Calgary, AB, Canada	51-200	89 contacts →
	Strong evidence “Delphi is a Canadian strategic consulting firm specializing in sustainability and climate change.” Source: RevenueBase Database · checked Aug 31, 2026
18	North Shore Environmental Consultants INC	Indirect evidence	Lacombe, AB, Canada	51-200	88 contacts →
	Indirect evidence Source: RevenueBase Database · checked Aug 31, 2026
19	Econoler	Strong evidence	Quebec, QC, Canada	51-200	76 contacts →
	Strong evidence “Econoler is an international consulting firm specializing in energy efficiency, energy demand-side management, and climate finance, supporting decarbonization efforts worldwide.” Source: RevenueBase Database · checked Aug 31, 2026
20	Mcdaniel	Indirect evidence	Calgary, AB, Canada	51-200	75 contacts →
	Indirect evidence “McDaniel is focused on unravelling the complexities of the Energy business.” Source: RevenueBase Database · checked Aug 31, 2026
21	Ckinetics	Indirect evidence	Toronto, Canada	51-200	73 contacts →
	Indirect evidence “cKinetics is a Sustainability specialist which provides: Sustainability strategy advisory services, Information products and incubation capital.” Source: RevenueBase Database · checked Aug 31, 2026
22	Akonovia	Indirect evidence	Toronto, Canada	51-200	73 contacts →
	Indirect evidence “Akonovia helps you with your energy efficiency and decarbonization goals.” Source: RevenueBase Database · checked Aug 31, 2026
23	Dunsky Energy Climate Advisors	Partial evidence	Toronto, ON, Canada	51-200	70 contacts →
	Partial evidence “DUNSKY ENERGY + CLIMATE ADVISORS provides top-level research, analysis and strategic counsel in support of our clients’ clean energy and climate goals, with a focus on buildings…” Source: RevenueBase Database · checked Aug 31, 2026
24	Prism Engineering Limited	Partial evidence	Nelson, BC, Canada	51-200	65 contacts →
	Partial evidence “We believe in changing systems for a better world.” Source: RevenueBase Database · checked Aug 31, 2026
25	Pesca Environment	Indirect evidence	Levis, Canada	51-200	61 contacts →
	Indirect evidence “PESCA Environment assists you in the realization of your projects for more than 30 years.” Source: RevenueBase Database · checked Aug 31, 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 change 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 change consulting firms.
Partial evidence: Its own public description names part of climate change 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 change 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 759 climate change consulting firms based in Canada

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 22,097 reachable decision-makers.

Free signup · no credit card

View the full list →

Climate change consulting firms based in Canada at a glance

As of Aug 31, 2026

55.7%Verified-email coverage

18.3%Mobile-number coverage

52.3Average contacts per company

1-10Median size (employees)

15.5%Largest-city concentration · Toronto

Aug 31, 2026Page data refreshed

Companies by employee count

1-10

544

11-50

163

51-200

201-500

501-1,000

1,001-5,000

10001+

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 change 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 Canada whose own description of what they do matches “climate change 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 change 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 change consulting 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, 22,097 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 August 31, 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 change consulting 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 climate change 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 change consulting firms are there based in Canada?

RevenueBase identified 759 climate change consulting firms headquartered in Canada as of August 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?

Stantec, headquartered in Edmonton, tops this list with the largest team on record.

Which city has the most climate change consulting firms?

Toronto leads with 118 headquartered companies, followed by Calgary (85) and Vancouver (76).

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 22,097 verified decision-maker contacts tracked across these 759 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on August 31, 2026.

Ready to reach these companies? Verified emails and direct dials for all 759 climate change consulting firms based in Canada. Start with a free account, no credit card.

Download this list →

Related lists

Climate change consulting firms by geography

Browse the directory

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.