Company lists · Data refreshed October 2026

Top 25 International tax compliance firms based in Canada

RevenueBase identified 171 company matches for international tax compliance firms associated with Canada as of October 2026 and tracks 1,109 professional contacts across them, including 460 with verified work emails. Toronto is the largest hub.

This list covers company matches for international tax compliance 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 October 22, 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 Oct 22, 2026 How this list was built
171Companies
1,109Contacts tracked
460Verified emails
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The 25 largest international tax compliance firms based in Canada

Ranked by team size
Top 25 of 171 company matches for international tax compliance firms based in Canada, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 22, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchToronto, ON, CanadaHQ recorded Oct 22, 202651-200167 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 · Oct 22, 2026 · View company records in RevenueBase
2Exact matchVancouver, BC, CanadaHQ recorded Oct 22, 202651-200110 contacts →

Exact match

“Thorsteinssons is the largest Canadian law firm practicing exclusively in Tax.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
3Exact matchBrossard, QC, CanadaHQ recorded Oct 22, 202651-20059 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 · Oct 22, 2026 · View company records in RevenueBase
4Exact matchToronto, ON, CanadaHQ recorded Oct 22, 202611-5038 contacts →

Exact match

“Cadesky Tax is an independent tax consulting firm.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
5Exact matchToronto, ON, CanadaHQ recorded Oct 22, 202611-5037 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 · Oct 22, 2026 · View company records in RevenueBase
6Exact matchVancouver, BC, CanadaHQ recorded Oct 22, 202611-5023 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 · Oct 22, 2026 · View company records in RevenueBase
7Exact matchScarborough, ON, CanadaHQ recorded Oct 22, 20261-1020 contacts →

Exact match

“At C-Note Tax Solutions Inc, we proudly file tax returns for all Canadians, no matter where you are located.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
8Exact matchMontréal, QC, CanadaHQ recorded Oct 22, 202611-5016 contacts →

Exact match

“Barsalou Lawson Rheault is recognized as one of Canada’s leading tax law firms.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
9Exact matchRed Deer, AB, CanadaHQ recorded Oct 22, 202611-5014 contacts →

Exact match

“Summit Strategies is a well rounded multi-disciplinary firm of professionals.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
10Exact matchVancouver, BC, CanadaHQ recorded Oct 22, 20261-1013 contacts →

Exact match

“We are an US – Canadian tax firm that offers specialized cross-border tax planning, compliance and financial services.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
11Exact matchMontréal, QC, CanadaHQ recorded Oct 22, 20261-1013 contacts →

Exact match

“Our expertise: American taxation: Our team has decades of experience in US taxation.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
12Exact matchCambridge, ON, CanadaHQ recorded Oct 22, 202611-5013 contacts →

Exact match

“Cambridge Home | Cambridge Tax Consultant”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
13Exact matchToronto, ON, CanadaHQ recorded Oct 22, 202611-5012 contacts →

Exact match

“Vlad Alyokhin, CPA, Professional Corporation is a full-service tax, accounting and consulting firm based in Toronto, Canada.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
14Exact matchCalgary, AB, CanadaHQ recorded Oct 22, 20261-1012 contacts →

Exact match

“CompassTAX provides Canada US cross-border, international assignment planning and tax compliance services for Canadian multi-national corporations and their global employees.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
15Exact matchMontreal, CanadaHQ recorded Oct 22, 202611-5011 contacts →

Exact match

“Bienvenue chez les professionnels de l’impôt et des services comptables!”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
16Exact matchWindsor, ON, CanadaHQ recorded Oct 22, 202611-5010 contacts →

Exact match

“A tax-centric CPA firm, located and licensed in both Ontario and Michigan, focused on delivering high-quality corporate and personal tax compliance and planning.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
17Exact matchOakville, ON, CanadaHQ recorded Oct 22, 20261-1010 contacts →

Exact match

“IDM is a boutique tax accounting firm founded in 2012 that is dedicated to providing clients with premium tax and accounting services.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
18Exact matchToronto, ON, CanadaHQ recorded Oct 22, 202611-5010 contacts →

Exact match

“TaxChambers LLP is a tax law firm located in Toronto's financial district.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
19Exact matchLondon, ON, CanadaHQ recorded Oct 22, 202611-509 contacts →

Exact match

“Our team started off as just another tax group in a regional accounting firm.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
20Exact matchVancouver, BC, CanadaHQ recorded Oct 22, 202611-508 contacts →

Exact match

“Adams & Wong is a full-service Canadian Accounting firm founded by partners Michael Adams and Dickson Wong in 1993.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
21Exact matchToronto, CanadaHQ recorded Oct 22, 202611-508 contacts →

Exact match

“Individuals, businesses of all sizes, organizations and even charities will face tax issues from time to time.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
22Exact matchVancouver, BC, CanadaHQ recorded Oct 22, 202611-508 contacts →

Exact match

“Established in 1982, SKL Tax*(formerly Stephen Katz Ltd.) has provided cross-border (U.S.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
23Exact matchEtobicoke, ON, CanadaHQ recorded Oct 22, 202611-508 contacts →

Exact match

“At CPA Solutions, we provide services throughout the cycle of a tax transaction, from setting up creative domestic or cross-border structures to implementing those structures and…”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
24Exact matchRichmond, BC, CanadaHQ recorded Oct 22, 20261-108 contacts →

Exact match

“Azim Dahya & Company, CPA is a progressive firm of Tax Consultants and Accountants with extensive experience in all aspects of Taxation, Bookkeeping, Payroll, HST, GST and PST…”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
25Exact matchToronto, ON, CanadaHQ recorded Oct 22, 202611-507 contacts →

Exact match

“At Ross Professional Corporation we specialize in personal and corporate income tax preparation services for those working in the arts and entertainment industry.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase

Showing 25 of 171 international tax compliance firms based in Canada

See the full list, filter by size, metro and specialty, and access 460 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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International tax compliance firms based in Canada at a glance

As of Oct 22, 2026
41.5%Verified-email coverage
6.5Average contacts per company
1-10Median size (employees)
15.8%Largest-city concentration · Toronto
Oct 22, 2026Page data refreshed

Companies by employee count

1-10
122
11-50
39
51-200
4
501-1,000
1

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 171 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 compliance 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 460 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 October 22, 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 compliance 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 compliance firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 171 company matches for international tax compliance firms associated with Canada as of October 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?

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

Which city has the most international tax compliance firms?

Toronto leads with 27 company records, followed by Montreal (18) and Vancouver (12).

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 460 professional contacts with verified work emails tracked across these 171 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 October 22, 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.