Company lists · Data refreshed September 2026

Top 25 International tax consulting firms based in Canada

Name: International tax consulting 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 366 companies tracked

RevenueBase identified 366 company matches for international tax consulting firms associated with Canada as of September 2026 and tracks 11,940 professional contacts across them, including 6,233 with verified work emails. Toronto is the largest hub.

This list covers company matches for international tax consulting firms associated with Canada, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 28, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 SmartSearch · Exact Recorded Sep 28, 2026 How this list was built

366Companies

11,940Contacts tracked

6,233Verified emails

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The 25 largest international tax consulting firms based in Canada

Ranked by team size

Top 25 of 366 company matches for international tax consulting firms based in Canada, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	MNP	Exact match	Calgary, AB, CanadaHQ recorded Sep 28, 2026	5,001-10,000	8,773 contacts →
	Exact match “MNP is a leading national accounting, tax and business consulting firm in Canada.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2	FBC Farm And Small Business TAX Consultants	Exact match	Calgary, AB, CanadaHQ recorded Sep 28, 2026	201-500	260 contacts →
	Exact match “For more than 70 years, our focus has always been to bring financial peace of mind to our Canadian business owners.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3	Zeifmans	Exact match	Toronto, ON, CanadaHQ recorded Sep 28, 2026	51-200	168 contacts →
	Exact match “Zeifmans is a full-service tax, accounting and consulting firm based in Toronto, Canada.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4	Trowbridge Professional Corporation	Exact match	Toronto, ON, CanadaHQ recorded Sep 28, 2026	51-200	161 contacts →
	Exact match “Trowbridge Professional Corporation is a long established global accounting firm that provides a wide range of personal and corporate tax services, specializing in international…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5	Marcil Lavallée	Exact match	Ottawa, ON, CanadaHQ recorded Sep 28, 2026	51-200	109 contacts →
	Exact match “Marcil Lavallée est un partenaire engagé qui contribue activement à la réussite de ses clients en anticipant leurs besoins et en leur offrant une gamme complète de solutions…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6	Thorsteinssons TAX Lawyers	Exact match	Vancouver, BC, CanadaHQ recorded Sep 28, 2026	51-200	106 contacts →
	Exact match “Thorsteinssons is the largest Canadian law firm practicing exclusively in Tax.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7	Invictus Accounting Group LLP	Exact match	Vancouver, BC, CanadaHQ recorded Sep 28, 2026	51-200	86 contacts →
	Exact match “Located in the heart of Downtown Vancouver, Invictus Accounting Group LLP provides consulting, accounting and tax advisory for publicly listed and privately held companies.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8	Baker Tilly Ottawa LLP	Exact match	Ottawa, ON, CanadaHQ recorded Sep 28, 2026	51-200	80 contacts →
	Exact match “At Baker Tilly Ottawa LLP, we provide expert tax, assurance, and entrepreneurial services to help your business grow and prosper.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	Felesky Flynn LLP	Exact match	Edmonton, AB, CanadaHQ recorded Sep 28, 2026	51-200	70 contacts →
	Exact match “With offices in Calgary, Edmonton and Saskatoon, Felesky Flynn LLP provides Canadian and international tax planning, tax representation and litigation, and wills and estates…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	BFR	Exact match	Laval, QC, CanadaHQ recorded Sep 28, 2026	51-200	68 contacts →
	Exact match “On est un collectif original d’expert·es d’affaires comptables, fiscales et juridiques.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11	Horizon Chartered Professional Accountants	Exact match	Vancouver, CanadaHQ recorded Sep 28, 2026	11-50	56 contacts →
	Exact match “At Horizon Chartered Professional Accountants we know that financial success is achieved by more than careful planning and experienced decision-making: it is realized through a…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	Romanovsky & Associates LLP	Exact match	Edmonton & Toronto, CanadaHQ recorded Sep 28, 2026	11-50	53 contacts →
	Exact match “At Romanovsky and Associates we are committed to providing high quality services that are needed in today's competitive market place.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	Cfla S.E.N.C.R.L. LLP	Exact match	Brossard, QC, CanadaHQ recorded Sep 28, 2026	51-200	51 contacts →
	Exact match “Services * Expansion américaine et/ou internationale;* Conformité fiscale américaine (corporative);* Conformité fiscale américaine (individu);* « Snowbirds » et immobilier…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	BDO Canada Français	Exact match	Montreal, QC, CanadaHQ recorded Sep 28, 2026	1,001-5,000	46 contacts →
	Exact match “Palmarès des 100 meilleurs employeurs 2026 \| 2025 I 2024 I 2023 I 2022 BDO Canada s.r.l./S.E.N.C.R.L.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	Cadesky TAX	Exact match	Toronto, ON, CanadaHQ recorded Sep 28, 2026	11-50	41 contacts →
	Exact match “Cadesky Tax is an independent tax consulting firm.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	Teed Saunders Doyle	Exact match	Fredericton, NB, CanadaHQ recorded Sep 28, 2026	11-50	38 contacts →
	Exact match “Teed Saunders Doyle are your local partners in accounting, taxation and business advisory services.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17	Rosen & Associates TAX LAW	Exact match	Toronto, ON, CanadaHQ recorded Sep 28, 2026	11-50	33 contacts →
	Exact match “Rosen & Associates Tax Law (“R&A Tax Law) is a national tax law firm based in Toronto, Ontario.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	Sblr LLP Chartered Professional Accountants	Exact match	Toronto, ON, CanadaHQ recorded Sep 28, 2026	11-50	31 contacts →
	Exact match “SBLR LLP is a rapidly evolving mid-sized accounting and tax firm that focuses on delivering top service to the small and medium-size entrepreneurial business owner.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	Westmark TAX	Exact match	Vancouver, BC, CanadaHQ recorded Sep 28, 2026	11-50	26 contacts →
	Exact match “Our firm was founded to provide quality cross-border tax services based on the following 4 key principles: Effective tax planning We try to provide value for our fees whether we…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	Gallo LLP	Exact match	Edmonton, AB, CanadaHQ recorded Sep 28, 2026	11-50	25 contacts →
	Exact match “Gallo LLP is an #accounting firm with offices in both Edmonton and Sherwood Park.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	Lemieux Cantin S.E.N.C.R.L	Exact match	Montréal, QC, CanadaHQ recorded Sep 28, 2026	11-50	25 contacts →
	Exact match “Nous désirons développer et conserver un haut niveau d’expertise et rendre disponibles en tout temps nos ressources professionnelles et nos connaissances aux personnes et aux…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	MSGL	Exact match	Montréal, QC, CanadaHQ recorded Sep 28, 2026	11-50	21 contacts →
	Exact match “MSGL est né du partage d’une vision et de valeurs communes à ses fondateurs : rigueur, proximité et confiance.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23	Kaushal & Co. CPA	Exact match	New Westminster, BC, CanadaHQ recorded Sep 28, 2026	11-50	20 contacts →
	Exact match “Kaushal & Co.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24	G&g Partnership, LLP	Exact match	Toronto, ON, CanadaHQ recorded Sep 28, 2026	11-50	20 contacts →
	Exact match “We have been providing accounting, assurance, and creative tax minimization strategies to individuals, corporations, and entrepreneurs for more than four decades.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25	Porter Hétu International QC INC	Exact match	Ville Saint-laurent, QC, CanadaHQ recorded Sep 28, 2026	11-50	20 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “international tax consulting firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 366 international tax consulting firms based in Canada

See the full list, filter by size, metro and specialty, and access 6,233 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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International tax consulting firms based in Canada at a glance

As of Sep 28, 2026

52.2%Verified-email coverage

32.6Average contacts per company

1-10Median size (employees)

12.3%Largest-city concentration · Toronto

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

261

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 366 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Canada whose business descriptions match “international tax consulting firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 6,233 professional contacts with verified work emails across the full matched dataset. 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.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

International tax consulting firms by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “international tax consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many international tax consulting firms are there based in Canada?

RevenueBase identified 366 company matches for international tax consulting firms associated with Canada as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

MNP tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most international tax consulting firms?

Toronto leads with 45 company records, followed by Montreal (40) and Vancouver (28).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 6,233 professional contacts with verified work emails tracked across these 366 companies; direct dials are available where recorded.

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 SmartSearch, 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.