Company lists · Data verified 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 Verified Aug 28, 2026 759 companies tracked

There are 759 climate change consulting firms headquartered in Canada (RevenueBase, August 2026). RevenueBase 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. Data current as of August 28, 2026.

759Companies

39,675Contacts tracked

22,097Verified emails

7,256Mobile numbers

Unlock all 759 companies Free account · no credit card · 2 minutes

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 verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Stantec	Edmonton, AB	10001+	28,492	16,817
2	DHI	Richmond, BC	1,001-5,000	1,415	104
3	RWDI	Victoria, BC	501-1,000	730	548
4	GBI	Repentigny, QC	201-500	449	270
5	EMM Consulting PTY Limited	Calgary, AB	201-500	356	267
6	Triton Environmental Consultants LTD	Calgary, AB	201-500	352	195
7	RDH Building Science	Waterloo, ON	201-500	333	259
8	PGL Environmental Consultants	Victoria, BC	51-200	183	90
9	EDI Environmental Dynamics INC	Grande Prairie, BC	51-200	161	99
10	Keystone Environmental	Calgary, AB	51-200	158	126
11	DWB Consulting Services LTD	Williams Lake, BC	51-200	120	68
12	GLJ LTD	Calgary, AB	51-200	112	61
13	Associated Environmental Consultants	Kelowna, BC	501-1,000	110	74
14	Groupe Conseil UDA INC	Quebec, QC	51-200	107	56
15	NVIRA	Montreal, QC	51-200	104	64
16	Blackstone Energy Services INC	Toronto, ON	51-200	96	76
17	Delphi	Calgary, AB	51-200	89	31
18	North Shore Environmental Consultants INC	Lacombe, AB	51-200	88	66
19	Econoler	Quebec, QC	51-200	76	46
20	Mcdaniel	Calgary, AB	51-200	75	57
21	Ckinetics	Toronto	51-200	73	39
22	Akonovia	Toronto	51-200	73	25
23	Dunsky Energy Climate Advisors	Toronto, ON	51-200	70	54
24	Prism Engineering Limited	Nelson, BC	51-200	65	47
25	Pesca Environment	Levis	51-200	61	33

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 account · no credit card

See all 759 companies

Climate change consulting firms based in Canada at a glance

As of Aug 28, 2026

1-10Median size (employees)

TorontoLargest hub · 118 HQs

7,256Contacts with mobile numbers

107Emails re-verified in last 30 days

Companies by employee count

1-10

544

11-50

163

51-200

201-500

501-1,000

1,001-5,000

10001+

Climate change consulting firms by metro

Metro	Companies
Climate change consulting firms in Toronto	118
Climate change consulting firms in Calgary	85
Climate change consulting firms in Vancouver	76
Climate change consulting firms in Montreal	74
Climate change consulting firms in Ottawa	30
Climate change consulting firms in Edmonton	26
Climate change consulting firms in Quebec	15
Climate change consulting firms in Victoria	14

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “climate change consulting firms”, with match quality audited by blind human judging, and headquartered in Canada.
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: Contact records re-verify on a rolling cadence; 107 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many climate change consulting firms are there based in Canada?

There are 759 climate change consulting firms headquartered in Canada as of August 2026 (RevenueBase).

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 is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 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.

Get the full list

Related lists

Climate change consulting firms by geography

Browse the directory

Browse: Companies home · All Canada lists · All Climate change consulting firms lists · New lists

About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.