Company lists · Data refreshed September 2026

Top 25 Audit and accounting firms based in Canada

Name: Audit and 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 1,417 companies tracked

RevenueBase identified 1,417 audit and accounting firms headquartered in Canada as of September 2026 and tracks 35,843 professional contacts across them, including 17,429 with verified work emails and 1,799 with mobile numbers. Toronto is the largest hub.

This list covers audit and 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

1,417Companies

35,843Contacts tracked

17,429Verified emails

1,799Mobile numbers

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The 25 largest audit and accounting firms based in Canada

Ranked by team size

Top 25 of 1,417 audit and 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 audit and 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	MNP	Partial evidence	Calgary, AB, CanadaHQ checked Sep 28, 2026	5,001-10,000	8,773 contacts →
	Partial evidence “MNP is a leading national accounting, tax and business consulting firm in Canada.” Source: RevenueBase Database · checked Sep 28, 2026
2	PWC Canada	Indirect evidence	Toronto, CanadaHQ checked Sep 28, 2026	5,001-10,000	5,573 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
3	BDO Canada	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 28, 2026	1,001-5,000	4,833 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 Sep 28, 2026
4	RSM Canada	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 28, 2026	10001+	897 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 Sep 28, 2026
5	Crowe Mackay LLP	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 28, 2026	201-500	402 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 Sep 28, 2026
6	Welch LLP	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 28, 2026	201-500	399 contacts →
	Partial evidence “Welch LLP is a Chartered Public Accounting firm that has deep roots in the communities it serves.” Source: RevenueBase Database · checked Sep 28, 2026
7	FBL S.E.N.C.R.L. Société DE Comptables Professionnels Agréés	Indirect evidence	Montréal, QC, CanadaHQ checked Sep 28, 2026	201-500	347 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 Sep 28, 2026
8	Demers Beaulne LLP	Indirect evidence	Montréal, QC, CanadaHQ checked Sep 28, 2026	201-500	317 contacts →
	Indirect evidence “Demers Beaulne LLP is a chartered accountants firm.” Source: RevenueBase Database · checked Sep 28, 2026
9	Dmcl Chartered Professional Accountants	Partial evidence	Vancouver, BC, CanadaHQ checked Sep 28, 2026	201-500	316 contacts →
	Partial 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 Sep 28, 2026
10	Manning Elliott Accountants & Business Advisors	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 28, 2026	201-500	296 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 Sep 28, 2026
11	Crowe Soberman	Partial evidence	Toronto, ON, CanadaHQ checked Sep 28, 2026	51-200	265 contacts →
	Partial 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 Sep 28, 2026
12	Segal Gcse LLP	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 28, 2026	201-500	258 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 Sep 28, 2026
13	Collins Barrow	Strong evidence	Waterloo, ON, CanadaHQ checked Sep 28, 2026	1,001-5,000	228 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 Sep 28, 2026
14	Kingston Ross Pasnak LLP	Indirect evidence	Edmonton, AB, CanadaHQ checked Sep 28, 2026	51-200	218 contacts →
	Indirect evidence “Kingston Ross Pasnak offers an array of comprehensive services through our highly skilled professionals.” Source: RevenueBase Database · checked Sep 28, 2026
15	PSB Boisjoli	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 28, 2026	51-200	206 contacts →
	Indirect evidence “Basé à Montréal, PSB BOISJOLI S.E.N.C.R.L.” Source: RevenueBase Database · checked Sep 28, 2026
16	Smythe LLP	Partial evidence	Vancouver, BC, CanadaHQ checked Sep 28, 2026	201-500	199 contacts →
	Partial 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 Sep 28, 2026
17	BVA	Indirect evidence	Sainte-marie, QC, CanadaHQ checked Sep 28, 2026	201-500	170 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 Sep 28, 2026
18	Zeifmans	Partial evidence	Toronto, ON, CanadaHQ checked Sep 28, 2026	51-200	168 contacts →
	Partial evidence “Zeifmans is a full-service tax, accounting and consulting firm based in Toronto, Canada.” Source: RevenueBase Database · checked Sep 28, 2026
19	Bcgo S.E.N.C.R.L	Indirect evidence	Montréal, QC, CanadaHQ checked Sep 28, 2026	51-200	164 contacts →
	Indirect evidence “BCGO est un cabinet indépendant d’expertise comptable et de services-conseils aux entrepreneurs.” Source: RevenueBase Database · checked Sep 28, 2026
20	Lemieux Nolet	Indirect evidence	Lévis, QC, CanadaHQ checked Sep 28, 2026	201-500	163 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 Sep 28, 2026
21	DJB Chartered Professional Accountants	Indirect evidence	St. Catharines, ON, CanadaHQ checked Sep 28, 2026	51-200	155 contacts →
	Indirect evidence “BIG ENOUGH TO KNOW.” Source: RevenueBase Database · checked Sep 28, 2026
22	Davis Martindale LLP	Indirect evidence	London, ON, CanadaHQ checked Sep 28, 2026	51-200	122 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 Sep 28, 2026
23	Mcgovern Hurley LLP	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 28, 2026	51-200	114 contacts →
	Indirect evidence “McGovern Hurley commenced operations in 1980.” Source: RevenueBase Database · checked Sep 28, 2026
24	Amyot Gélinas	Indirect evidence	Ste-agathe-des-monts, QC, CanadaHQ checked Sep 28, 2026	51-200	114 contacts →
	Indirect evidence “Dès la création du cabinet Amyot Gélinas il y a maintenant plus de 30 ans, notre rêve était de grandir avec notre clientèle et de développer avec elle un partenariat fondé sur le…” Source: RevenueBase Database · checked Sep 28, 2026
25	Davidson & Company LLP	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 28, 2026	51-200	109 contacts →
	Indirect evidence “At Davidson & Company, we believe that relationships are built with people, not companies.” 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: audit and 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 audit and accounting firms.
Partial evidence: Its own public description names part of audit and accounting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name audit and 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 1,417 audit and accounting firms based in Canada

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Audit and accounting firms based in Canada at a glance

As of Sep 28, 2026

48.6%Verified-email coverage

5.0%Mobile-number coverage

25.3Average contacts per company

1-10Median size (employees)

10.7%Largest-city concentration · Toronto

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

925

11-50

367

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 31.0d

8,7630–30

8,05431–60

44261–90

490–180

166180+

Company record updated

Median 79.0d

00–30

10,92031–60

9,94661–90

12,21590–180

2,762180+

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 audit and 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 “audit and 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 audit and 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 audit and 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, 17,429 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.

Audit and 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 audit and 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 audit and accounting firms are there based in Canada?

RevenueBase identified 1,417 audit and 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?

MNP, headquartered in Calgary, tops this list with the largest team on record.

Which city has the most audit and accounting firms?

Toronto leads with 152 headquartered companies, followed by Mississauga (83) and Calgary (81).

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 17,429 verified decision-maker contacts tracked across these 1,417 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.