Company lists · Data refreshed September 2026

Top 25 Internal audit consulting firms based in Canada

RevenueBase identified 130 internal audit consulting firms headquartered in Canada as of September 2026 and tracks 1,518 professional contacts across them, including 399 with verified work emails and 58 with mobile numbers. Toronto is the largest hub.

This list covers internal audit consulting 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 4, 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 4, 2026 86% judged on-target in blind review
130Companies
1,518Contacts tracked
399Verified emails
58Mobile numbers
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The 25 largest internal audit consulting firms based in Canada

Ranked by team size
Top 25 of 130 internal audit consulting firms based in Canada, ranked by team size, largest first. Data refreshed Sep 4, 2026. RevenueBase Smart Search rates how each company's information relates to internal audit consulting 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 evidenceVancouver, BC, CanadaHQ checked Sep 4, 2026201-500398 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 Sep 4, 2026
2Indirect evidenceStratford, ON, CanadaHQ checked Sep 4, 202651-20086 contacts →

Indirect evidence

“Since 1947, Famme & Co.”

Source: RevenueBase Database · checked Sep 4, 2026
3Partial evidenceVancouver, BC, CanadaHQ checked Sep 4, 202651-20085 contacts →

Partial evidence

“Located in the heart of Downtown Vancouver, Invictus Accounting Group LLP provides consulting, accounting and tax advisory for publicly listed and privately held companies.”

Source: RevenueBase Database · checked Sep 4, 2026
4Partial evidenceCalgary, AB, CanadaHQ checked Sep 4, 202611-5072 contacts →

Partial 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 4, 2026
5Strong evidenceToronto, ON, CanadaHQ checked Sep 4, 202651-20064 contacts →

Strong evidence

“Adams + Miles delivers accounting, audit, assurance and strategic consulting services to clients across sectors.”

Source: RevenueBase Database · checked Sep 4, 2026
6Indirect evidenceMont-saint-hilaire, QC, CanadaHQ checked Sep 4, 202651-20060 contacts →

Indirect evidence

“Brodeur & Létourneau CPA est un cabinet comptable de professionnels agréés aux services de ses clients depuis 45 ans.”

Source: RevenueBase Database · checked Sep 4, 2026
7Indirect evidenceMarkham, ON, CanadaHQ checked Sep 4, 202611-5039 contacts →

Indirect evidence

“At NVS, we want to be your financial advocate.”

Source: RevenueBase Database · checked Sep 4, 2026
8Indirect evidenceSt. Thomas, ON, CanadaHQ checked Sep 4, 202611-5032 contacts →

Indirect evidence

“For more than four decades, Graham Scott Enns has known the kind of success that only comes with getting to know the people you work for.”

Source: RevenueBase Database · checked Sep 4, 2026
9Indirect evidenceLaval, QC, CanadaHQ checked Sep 4, 202611-5022 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 4, 2026
10Partial evidenceHalifax, NS, CanadaHQ checked Sep 4, 202611-5021 contacts →

Partial 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 4, 2026
11Partial evidenceToronto, ON, CanadaHQ checked Sep 4, 202611-5020 contacts →

Partial 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 4, 2026
12Indirect evidenceMississauga, ON, CanadaHQ checked Sep 4, 202611-5015 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 4, 2026
13Indirect evidenceMaria, QC, CanadaHQ checked Sep 4, 202611-5014 contacts →

Indirect evidence

“Leblanc Bourque Arsenault inc, comptables agréés, offre son expertise et ses services à ses clients en misant sur le professionnalisme de chacun de ses membres.”

Source: RevenueBase Database · checked Sep 4, 2026
14Indirect evidenceCalgary, AB, CanadaHQ checked Sep 4, 202611-5013 contacts →

Indirect evidence

“Sunesis is a governance, risk, and compliance advisory firm that sees beyond obligation.”

Source: RevenueBase Database · checked Sep 4, 2026
15Indirect evidenceMarkham, ON, CanadaHQ checked Sep 4, 20261-1013 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 4, 2026
16Partial evidenceMontreal, QC, CanadaHQ checked Sep 4, 202611-5012 contacts →

Partial evidence

“Belmonte Léger SEP’s mission is to lead in the area of consulting services to companies and individuals, through addressing a wide range of business needs, while upholding…”

Source: RevenueBase Database · checked Sep 4, 2026
17Indirect evidenceVancouver, BC, CanadaHQ checked Sep 4, 202611-5011 contacts →

Indirect evidence

“Decision Point Advisors is a rapidly growing professional services company.”

Source: RevenueBase Database · checked Sep 4, 2026
18Indirect evidenceOakville, ON, CanadaHQ checked Sep 4, 202611-5011 contacts →

Indirect evidence

“Glenn Graydon Wright LLP Chartered Professional Accountants has been a trusted and reliable presence in Oakville, Ontario since 1958.”

Source: RevenueBase Database · checked Sep 4, 2026
19Indirect evidenceLongueuil, QC, CanadaHQ checked Sep 4, 202611-5010 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 4, 2026
20Partial evidenceBurnaby, BC, CanadaHQ checked Sep 4, 202611-5010 contacts →

Partial evidence

“We are an accounting and consulting firm with a reputation for innovative and lasting results.”

Source: RevenueBase Database · checked Sep 4, 2026
21Partial evidenceOttawa, ON, CanadaHQ checked Sep 4, 20261-108 contacts →

Partial evidence

“Armstrong Jones LLP is an accounting firm based in Ottawa, Ontario that offers services in accounting, audit and assurance, tax planning and compliance, and a wide array of…”

Source: RevenueBase Database · checked Sep 4, 2026
22Strong evidenceOttawa, CanadaHQ checked Sep 4, 20261-108 contacts →

Strong evidence

“Orbis Risk Consulting is an Ottawa based company that provides a range of services that are specifically designed to meet the internal audit and risk management needs of…”

Source: RevenueBase Database · checked Sep 4, 2026
23Indirect evidenceSaint-Georges, QC, CanadaHQ checked Sep 4, 202611-508 contacts →

Indirect evidence

“Société de Comptables professionnels agréés oeuvrant à Saint-Georges de Beauce.”

Source: RevenueBase Database · checked Sep 4, 2026
24Partial evidenceCalgary, AB, CanadaHQ checked Sep 4, 202611-507 contacts →

Partial evidence

“MHM is Canada's first SCC-accredited ISO 42001 audit provider offering AIMS certification and compliance services.”

Source: RevenueBase Database · checked Sep 4, 2026
25Indirect evidenceVancouver, BC, CanadaHQ checked Sep 4, 20261-107 contacts →

Indirect evidence

“Saturna Group was founded in November 2008 by its two partners, Lonny Wong and Henry Chow.”

Source: RevenueBase Database · checked Sep 4, 2026

Showing 25 of 130 internal audit consulting firms based in Canada

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Internal audit consulting firms based in Canada at a glance

As of Sep 4, 2026
26.3%Verified-email coverage
3.8%Mobile-number coverage
11.7Average contacts per company
1-10Median size (employees)
22.3%Largest-city concentration · Toronto
Sep 4, 2026Page data refreshed

Companies by employee count

1-10
82
11-50
38
51-200
6
201-500
2
1,001-5,000
1

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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 internal audit consulting 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 “internal audit consulting 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 internal audit consulting 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 internal audit consulting 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, 399 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 4, 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.

Internal audit consulting firms by metro

  • Internal audit consulting firms in Toronto29

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 internal audit consulting 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 internal audit consulting firms are there based in Canada?

RevenueBase identified 130 internal audit consulting 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?

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

Which city has the most internal audit consulting firms?

Toronto leads with 29 headquartered companies, followed by Vancouver (12) and Ottawa (9).

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 399 verified decision-maker contacts tracked across these 130 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 4, 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.