Company lists · Data verified August 2026

Top 25 Accounting firms based in Canada

There are 3,994 accounting firms headquartered in Canada (RevenueBase, August 2026). RevenueBase tracks 137,396 professional contacts across them, including 45,813 with verified work emails and 10,906 with mobile numbers. Toronto is the largest hub.

This list covers accounting 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.

3,994Companies
137,396Contacts tracked
45,813Verified emails
10,906Mobile numbers
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The 25 largest accounting firms based in Canada

Ranked by team size
Top 25 of 3,994 accounting firms based in Canada, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#CompanyHQEmployeesContactsVerified emails
1KPMGn/a10001+68,07518,812
2BDO CanadaToronto, ON1,001-5,0004,8882,771
3Raymond Chabot Grant ThorntonMontreal, QC1,001-5,0002,5371,578
4MalletteMontmagny, QC1,001-5,0001,257945
5RSM CanadaToronto, ON10001+919537
6Baker Tilly CanadaWaterloo, ON1,001-5,000777301
7Welch LLPTrenton, ON201-500398228
8Crowe Mackay LLPKelowna, BC201-5003981
9FBL S.E.N.C.R.L. Société DE Comptables Professionnels AgréésQuebec201-500346265
10Demers Beaulne LLPMontreal, QC201-500318183
11Dmcl Chartered Professional AccountantsPort Coquitlam, BC201-500314214
12Manning Elliott LLPAbbotsford, BC201-500296204
13Groupe RDLQuebec, QC201-500280193
14Ordre DES CPA DU QuébecMontreal, QC201-500279113
15Crowe SobermanToronto, ON51-2002611
16Segal Gcse LLPToronto, ON201-500255163
17Collins BarrowWaterloo, ON1,001-5,00022945
18Smythe LLPLangley, BC201-500199125
19Intuit AccountantsToronto, ON10001+18631
20BVASainte-Marie, QC201-500168114
21ZeifmansToronto, ON51-20016559
22Lemieux NoletLac-Etchemin, QC201-5001632
23DJB Chartered Professional AccountantsHamilton, ON51-200153109
24Davis Martindale LLPLondon, ON51-20012198
25Mcgovern Hurley LLPToronto, ON51-20011380

Showing 25 of 3,994 accounting firms based in Canada

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Accounting firms based in Canada at a glance

As of Aug 28, 2026
1-10Median size (employees)
TorontoLargest hub · 416 HQs
10,906Contacts with mobile numbers
359Emails re-verified in last 30 days

Companies by employee count

1-10
2,824
11-50
877
51-200
151
201-500
23
501-1,000
5
1,001-5,000
10
10001+
5

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 “accounting 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; 359 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 accounting firms are there based in Canada?

There are 3,994 accounting firms headquartered in Canada as of August 2026 (RevenueBase).

What is the largest company on this list?

KPMG, headquartered in Canada, tops this list with the largest team on record.

Which city has the most accounting firms?

Toronto leads with 416 headquartered companies, followed by Calgary (244) and Montreal (213).

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 45,813 verified decision-maker contacts tracked across these 3,994 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.

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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.