Company lists · Data refreshed September 2026

Top 25 Auditing companies based in Canada

Name: Auditing companies based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 94 companies tracked

RevenueBase identified 94 auditing companies headquartered in Canada as of September 2026 and tracks 1,434 professional contacts across them, including 424 with verified work emails. Toronto is the largest hub.

This list covers auditing companies 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 21, 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 21, 2026 86% judged on-target in blind review

94Companies

1,434Contacts tracked

424Verified emails

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The 25 largest auditing companies based in Canada

Ranked by team size

Top 25 of 94 auditing companies based in Canada, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to auditing companies: 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	Crowe Mackay LLP	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 21, 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 21, 2026
2	Mcgovern Hurley LLP	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	51-200	114 contacts →
	Indirect evidence “McGovern Hurley commenced operations in 1980.” Source: RevenueBase Database · checked Sep 21, 2026
3	Famme & Co. Chartered Professional Accountants	Indirect evidence	Stratford, ON, CanadaHQ checked Sep 21, 2026	51-200	87 contacts →
	Indirect evidence “Since 1947, Famme & Co.” Source: RevenueBase Database · checked Sep 21, 2026
4	Ward & Uptigrove	Indirect evidence	Listowel, ON, CanadaHQ checked Sep 21, 2026	51-200	86 contacts →
	Indirect evidence “Realize your full potential at Ontario’s largest independent accounting firm.” Source: RevenueBase Database · checked Sep 21, 2026
5	Canadian Public Accountability Board Cpab	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	51-200	83 contacts →
	Indirect evidence “The Canadian Public Accountability Board (CPAB) is Canada’s audit regulator responsible for the regulation of public accounting firms that audit Canadian public companies.” Source: RevenueBase Database · checked Sep 21, 2026
6	PKF Antares	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 21, 2026	11-50	73 contacts →
	Indirect evidence “PKF ANTARES offers wide range of Assurance, Accounting, Tax and Corporate Finance services including- External Audits, Reviews and Compilation of IFRS, ASPE, USGAAP financial…” Source: RevenueBase Database · checked Sep 21, 2026
7	Baker Tilly Nova Scotia INC	Indirect evidence	Dartmouth, NS, CanadaHQ checked Sep 21, 2026	51-200	34 contacts →
	Indirect evidence “Situated in the City of Lakes Business Park in Dartmouth, Baker Tilly Nova Scotia Inc.” Source: RevenueBase Database · checked Sep 21, 2026
8	Connelly & Koshy Professional Corporation	Strong evidence	Ottawa, ON, CanadaHQ checked Sep 21, 2026	11-50	33 contacts →
	Strong evidence “Chartered Professional Accountants licensed to practice in Ontario and Quebec with offices in Ottawa and Shawville Practice areas- Accounting - Auditing of profit oriented…” Source: RevenueBase Database · checked Sep 21, 2026
9	Pivotal LLP	Indirect evidence	Red Deer County, AB, CanadaHQ checked Sep 21, 2026	11-50	26 contacts →
	Indirect evidence “Pivotal LLP is an independent public accounting firm with a "Can Do" philosophy that reflects the dynamic nature of our clientele.” Source: RevenueBase Database · checked Sep 21, 2026
10	BNB	Indirect evidence	Laval, QC, CanadaHQ checked Sep 21, 2026	11-50	22 contacts →
	Indirect evidence “Offrir un service de comptabilité multidiciplinaire touchant à tous les domaines du monde financier, grâce à notre équipe de professionnels chevronnés afin que nos clients soient…” Source: RevenueBase Database · checked Sep 21, 2026
11	Cns, A Subsidiary Of BDO Cayman Islands	Indirect evidence	Halifax, NS, CanadaHQ checked Sep 21, 2026	11-50	21 contacts →
	Indirect evidence “CNS and BDO Cayman Islands operate as one firm to provide audit services to clients in the global financial services industry.” Source: RevenueBase Database · checked Sep 21, 2026
12	K&p Cpas	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	11-50	20 contacts →
	Indirect evidence “We're an independent Toronto-based licensed public accounting firm providing assurance, bookkeeping, consulting, financial advisory, risk management, tax and related services to…” Source: RevenueBase Database · checked Sep 21, 2026
13	Apsv Comptables Professionnels Agréés INC	Indirect evidence	Montréal, QC, CanadaHQ checked Sep 21, 2026	11-50	17 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
14	Lancaster & David, Chartered Professional Accountants	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 21, 2026	11-50	13 contacts →
	Indirect evidence “Welcome to Lancaster & David, Chartered Professional Accountants, located in downtown Vancouver.” Source: RevenueBase Database · checked Sep 21, 2026
15	Avery Cooper & Co. LTD	Strong evidence	Yellowknife, NT, CanadaHQ checked Sep 21, 2026	11-50	10 contacts →
	Strong evidence “Established in 1969, Avery Cooper has offered public accounting and auditing services throughout the North.” Source: RevenueBase Database · checked Sep 21, 2026
16	Hébert Marsolais INC	Indirect evidence	Longueuil, QC, CanadaHQ checked Sep 21, 2026	11-50	10 contacts →
	Indirect evidence “Éric Marsolais, associé principal du cabinet comptable Hébert Marsolais inc, avec 20 ans d'expérience auprès de sociétés privées de toute taille, mes domaines d'expertise…” Source: RevenueBase Database · checked Sep 21, 2026
17	Feltham & Associates, Chartered Professional Accountants	Indirect evidence	Mount Pearl, NL, CanadaHQ checked Sep 21, 2026	1-10	10 contacts →
	Indirect evidence “Feltham & Associates, Chartered Professional Accountants provide a full range of professional services in Audit, Accounting, Management Advisory, Business Plans and Proposals, Tax…” Source: RevenueBase Database · checked Sep 21, 2026
18	Render & Partners LLP	Indirect evidence	Richmond Hill, ON, CanadaHQ checked Sep 21, 2026	11-50	8 contacts →
	Indirect evidence “Render & Partners LLP is a professional accounting firm in Aurora, ON dedicated to helping its clients succeed.” Source: RevenueBase Database · checked Sep 21, 2026
19	Paquet Daigle, Inc. Société DE Comptables Professionnels Agréés	Indirect evidence	Saint-georges, QC, CanadaHQ checked Sep 21, 2026	11-50	8 contacts →
	Indirect evidence “Société de Comptables professionnels agréés oeuvrant à Saint-Georges de Beauce.” Source: RevenueBase Database · checked Sep 21, 2026
20	KSO Accounting Group	Indirect evidence	Prince George, BC, CanadaHQ checked Sep 21, 2026	1-10	8 contacts →
	Indirect evidence “KSO Accounting Group is an evolving, medium-sized firm dedicated to serving clients in the private, not-for-profit and public service sectors.” Source: RevenueBase Database · checked Sep 21, 2026
21	Dubois & Mathieu S.E.N.C.R.L	Indirect evidence	Granby, QC, CanadaHQ checked Sep 21, 2026	1-10	7 contacts →
	Indirect evidence “Dubois & Mathieu, c’est 2 associés chevronnés cumulant plus de 20 ans d’expérience ayant réalisé des dizaines de missions d’examen, des centaines d’avis au lecteur, des milliers…” Source: RevenueBase Database · checked Sep 21, 2026
22	MHM	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 21, 2026	11-50	7 contacts →
	Indirect evidence “MHM is Canada's first SCC-accredited ISO 42001 audit provider offering AIMS certification and compliance services.” Source: RevenueBase Database · checked Sep 21, 2026
23	Saturna Group Chartered Professional Accountants LLP	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 21, 2026	1-10	7 contacts →
	Indirect evidence “Saturna Group was founded in November 2008 by its two partners, Lonny Wong and Henry Chow.” Source: RevenueBase Database · checked Sep 21, 2026
24	Wm. J. Trotter & Associates	Indirect evidence	Richmond Hill, ON, CanadaHQ checked Sep 21, 2026	11-50	7 contacts →
	Indirect evidence “Wm.” Source: RevenueBase Database · checked Sep 21, 2026
25	GPC Chartered Professional Accountants	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 21, 2026	1-10	7 contacts →
	Indirect evidence “We are a small public accounting firm based in Mississauga, ON, Canada specializing in corporate audit, review, tax and accounting services.” Source: RevenueBase Database · checked Sep 21, 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: auditing companies. 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 auditing companies.
Partial evidence: Its own public description names part of auditing companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name auditing companies. 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 94 auditing companies based in Canada

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Auditing companies based in Canada at a glance

As of Sep 21, 2026

29.6%Verified-email coverage

15.3Average contacts per company

1-10Median size (employees)

10.6%Largest-city concentration · Toronto

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

Email recency for this list is measured worldwide rather than for Canada, so it is reported there. Company counts and contact totals on this page are exact for Canada, over 94 companies.

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 auditing companies, 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 “auditing companies”. 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 auditing companies), 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 auditing companies, 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, 424 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 21, 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 auditing companies, 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 auditing companies are there based in Canada?

RevenueBase identified 94 auditing companies 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?

Crowe Mackay LLP, headquartered in Vancouver, tops this list with the largest team on record.

Which city has the most auditing companies?

Toronto leads with 10 headquartered companies, followed by Vancouver (10) and Montreal (7).

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 424 verified decision-maker contacts tracked across these 94 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 21, 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.