Company lists · Data refreshed August 2026

Top 25 Accounting firms based in Canada

RevenueBase identified 3,994 accounting firms headquartered in Canada as of August 2026 and 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. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed August 29, 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 29, 2026 86% judged on-target in blind review
3,994Companies
137,396Contacts tracked
45,813Verified emails
10,906Mobile numbers
Explore this list → Free signup · no credit card · 500 free credits

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 refreshed Aug 29, 2026. RevenueBase Smart Search rates how each company's information relates to 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceCanada10001+68,075 contacts →

Indirect evidence

“KPMG is a global organization of independent professional services firms providing Audit, Tax and Advisory services.”

Source: RevenueBase Database · checked Aug 29, 2026
2Indirect evidenceToronto, ON, Canada1,001-5,0004,888 contacts →

Indirect evidence

“Canada’s Top 100 Employers 2025 I 2024 I 2023 I 2022 BDO Canada LLP is a leading provider of professional services to clients across a variety of sectors and segments.”

Source: RevenueBase Database · checked Aug 29, 2026
3Indirect evidenceMontreal, QC, Canada1,001-5,0002,537 contacts →

Indirect evidence

“Raymond Chabot Grant Thornton is a professional services firm dedicated to the success of organizations and their leaders since 1948.”

Source: RevenueBase Database · checked Aug 29, 2026
4Indirect evidenceMontmagny, QC, Canada1,001-5,0001,257 contacts →

Indirect evidence

“Mallette compte plus de 40 bureaux solidement implantés dans plusieurs régions du Québec et regroupe plus de 1 600 ressources œuvrant dans différents secteurs d’activité.”

Source: RevenueBase Database · checked Aug 29, 2026
5Indirect evidenceToronto, ON, Canada10001+919 contacts →

Indirect evidence

“RSM Canada is a leading global provider of assurance, tax, and consulting services, and is the Canadian member firm of RSM International.”

Source: RevenueBase Database · checked Aug 29, 2026
6Strong evidenceWaterloo, ON, Canada1,001-5,000777 contacts →

Strong evidence

“With member firms from coast to coast, the Baker Tilly Canada Cooperative is one of the country’s largest associations of chartered professional accounting firms.”

Source: RevenueBase Database · checked Aug 29, 2026
7Strong evidenceTrenton, ON, Canada201-500398 contacts →

Strong evidence

“Welch LLP is a Chartered Public Accounting firm that has deep roots in the communities it serves.”

Source: RevenueBase Database · checked Aug 29, 2026
8Indirect evidenceKelowna, BC, Canada201-500398 contacts →

Indirect evidence

“Crowe MacKay LLP is a vibrant team of trusted advisors in eight cities across western and northern Canada.”

Source: RevenueBase Database · checked Aug 29, 2026
9Indirect evidenceQuebec, Canada201-500346 contacts →

Indirect evidence

“FBL | SOCIÉTÉ DE COMPTABLES PROFESSIONNELS AGRÉÉS Ayant été désigné comme étant l’un des dix plus grands cabinets au Québec, FBL jouit d’une solide expertise depuis plus de 40 ans.”

Source: RevenueBase Database · checked Aug 29, 2026
10Indirect evidenceMontreal, QC, Canada201-500318 contacts →

Indirect evidence

“Demers Beaulne LLP is a chartered accountants firm.”

Source: RevenueBase Database · checked Aug 29, 2026
11Strong evidencePort Coquitlam, BC, Canada201-500314 contacts →

Strong evidence

“DMCL LLP is a full-service accounting firm dedicated to helping you achieve and exceed your business goals, no matter how ambitious.”

Source: RevenueBase Database · checked Aug 29, 2026
12Indirect evidenceAbbotsford, BC, Canada201-500296 contacts →

Indirect evidence

“Manning Elliott LLP is considered to be one of the most well-respected and progressive mid-sized firms in the Lower Mainland & Fraser Valley.”

Source: RevenueBase Database · checked Aug 29, 2026
13Indirect evidenceQuebec, QC, Canada201-500280 contacts →

Indirect evidence

“Votre réseau québécois d’experts comptables!”

Source: RevenueBase Database · checked Aug 29, 2026
14Indirect evidenceMontreal, QC, Canada201-500279 contacts →

Indirect evidence

“L’Ordre des comptables professionnels agréés (CPA) du Québec regroupe plus de 35 600 membres et 6 500 candidats et étudiants.”

Source: RevenueBase Database · checked Aug 29, 2026
15Strong evidenceToronto, ON, Canada51-200261 contacts →

Strong evidence

“As an award-winning public accounting firm, we provide exceptional professional service (by being accessible, responsive and proactive) to meet the special and on-going individual…”

Source: RevenueBase Database · checked Aug 29, 2026
16Indirect evidenceToronto, ON, Canada201-500255 contacts →

Indirect evidence

“At Segal GCSE LLP, we embrace an ambitious firm philosophy: to provide our valued clients with an expansive service experience that enables greater opportunities for growth and…”

Source: RevenueBase Database · checked Aug 29, 2026
17Strong evidenceWaterloo, ON, Canada1,001-5,000229 contacts →

Strong evidence

“Recognized as Canada’s mid-market leader for audit, tax and advisory solutions, our association of 24 independent member firms comprises the eighth largest public accounting group…”

Source: RevenueBase Database · checked Aug 29, 2026
18Strong evidenceLangley, BC, Canada201-500199 contacts →

Strong evidence

“Smythe is a BC-based accounting firm recognized for exceptional work in the areas of assurance, taxation and business advisory services for private and public companies…”

Source: RevenueBase Database · checked Aug 29, 2026
19Strong evidenceToronto, ON, Canada10001+186 contacts →

Strong evidence

“This page serves the accounting, bookkeeping, and tax professional community who are at the heart of everything we do at Intuit.”

Source: RevenueBase Database · checked Aug 29, 2026
20Indirect evidenceSainte-Marie, QC, Canada201-500168 contacts →

Indirect evidence

“Depuis maintenant plus de 60 ans, BVA a développé une panoplie de services axés sur les préoccupations des entrepreneurs, des professionnels et des dirigeants d’entreprises.”

Source: RevenueBase Database · checked Aug 29, 2026
21Strong evidenceToronto, ON, Canada51-200165 contacts →

Strong evidence

“Zeifmans is a full-service tax, accounting and consulting firm based in Toronto, Canada.”

Source: RevenueBase Database · checked Aug 29, 2026
22Indirect evidenceLac-Etchemin, QC, Canada201-500163 contacts →

Indirect evidence

“Lemieux Nolet, cabinet de comptables professionnels agréés, œuvre dans le domaine depuis 1949 en vous offrant entre autres des services en certification, fiscalité, évaluation…”

Source: RevenueBase Database · checked Aug 29, 2026
23Indirect evidenceHamilton, ON, Canada51-200153 contacts →

Indirect evidence

“BIG ENOUGH TO KNOW.”

Source: RevenueBase Database · checked Aug 29, 2026
24Indirect evidenceLondon, ON, Canada51-200121 contacts →

Indirect evidence

“At Davis Martindale, our accountants work to bring you the peace of mind you’re in search of with a touch of personality.”

Source: RevenueBase Database · checked Aug 29, 2026
25Indirect evidenceToronto, ON, Canada51-200113 contacts →

Indirect evidence

“McGovern Hurley commenced operations in 1980.”

Source: RevenueBase Database · checked Aug 29, 2026

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 29, 2026
33.3%Verified-email coverage
7.9%Mobile-number coverage
34.4Average contacts per company
1-10Median size (employees)
10.4%Largest-city concentration · Toronto
Aug 29, 2026Page data refreshed

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

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among 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 “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 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 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, 45,813 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 29, 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.

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 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 accounting firms are there based in Canada?

RevenueBase identified 3,994 accounting 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?

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 refreshes periodically as the company graph is re-checked. This page's figures were pulled on August 29, 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.