Company lists · Data refreshed September 2026

Top 25 International tax services based in Canada

Name: International tax services based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 256 companies tracked

RevenueBase identified 256 international tax services headquartered in Canada as of September 2026 and tracks 1,868 professional contacts across them, including 722 with verified work emails. Toronto is the largest hub.

This list covers international tax services 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 20, 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 20, 2026 86% judged on-target in blind review

256Companies

1,868Contacts tracked

722Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest international tax services based in Canada

Ranked by team size

Top 25 of 256 international tax services based in Canada, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to international tax services: 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	FBC Farm And Small Business TAX Consultants	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 20, 2026	201-500	260 contacts →
	Indirect evidence “For more than 70 years, our focus has always been to bring financial peace of mind to our Canadian business owners.” Source: RevenueBase Database · checked Sep 20, 2026
2	Trowbridge Professional Corporation	Strong evidence	Toronto, ON, CanadaHQ checked Sep 20, 2026	51-200	161 contacts →
	Strong evidence “Trowbridge Professional Corporation is a long established global accounting firm that provides a wide range of personal and corporate tax services, specializing in international…” Source: RevenueBase Database · checked Sep 20, 2026
3	Thorsteinssons TAX Lawyers	Partial evidence	Vancouver, BC, CanadaHQ checked Sep 20, 2026	51-200	106 contacts →
	Partial evidence “Thorsteinssons is the largest Canadian law firm practicing exclusively in Tax.” Source: RevenueBase Database · checked Sep 20, 2026
4	Romanovsky & Associates LLP	Indirect evidence	Edmonton & Toronto, CanadaHQ checked Sep 20, 2026	11-50	53 contacts →
	Indirect evidence “At Romanovsky and Associates we are committed to providing high quality services that are needed in today's competitive market place.” Source: RevenueBase Database · checked Sep 20, 2026
5	Cfla S.E.N.C.R.L. LLP	Partial evidence	Brossard, QC, CanadaHQ checked Sep 20, 2026	51-200	51 contacts →
	Partial evidence “Services * Expansion américaine et/ou internationale;* Conformité fiscale américaine (corporative);* Conformité fiscale américaine (individu);* « Snowbirds » et immobilier…” Source: RevenueBase Database · checked Sep 20, 2026
6	Cadesky TAX	Partial evidence	Toronto, ON, CanadaHQ checked Sep 20, 2026	11-50	41 contacts →
	Partial evidence “Cadesky Tax is an independent tax consulting firm.” Source: RevenueBase Database · checked Sep 20, 2026
7	Teed Saunders Doyle	Indirect evidence	Fredericton, NB, CanadaHQ checked Sep 20, 2026	11-50	38 contacts →
	Indirect evidence “Teed Saunders Doyle are your local partners in accounting, taxation and business advisory services.” Source: RevenueBase Database · checked Sep 20, 2026
8	Rosen & Associates TAX LAW	Partial evidence	Toronto, ON, CanadaHQ checked Sep 20, 2026	11-50	33 contacts →
	Partial evidence “Rosen & Associates Tax Law (“R&A Tax Law) is a national tax law firm based in Toronto, Ontario.” Source: RevenueBase Database · checked Sep 20, 2026
9	Westmark TAX	Partial evidence	Vancouver, BC, CanadaHQ checked Sep 20, 2026	11-50	26 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 20, 2026
10	Kaushal & Co. CPA	Indirect evidence	New Westminster, BC, CanadaHQ checked Sep 20, 2026	11-50	20 contacts →
	Indirect evidence “Kaushal & Co.” Source: RevenueBase Database · checked Sep 20, 2026
11	C-Note TAX Solution INC	Partial evidence	Scarborough, ON, CanadaHQ checked Sep 20, 2026	1-10	20 contacts →
	Partial evidence “At C-Note Tax Solutions Inc, we proudly file tax returns for all Canadians, no matter where you are located.” Source: RevenueBase Database · checked Sep 20, 2026
12	Pinnacle Accounting And Finance Pinnacleaf	Partial evidence	Calgary, AB, CanadaHQ checked Sep 20, 2026	11-50	18 contacts →
	Partial evidence “Pinnacle Accounting & Finance Ltd is a dynamic organization with a focus on the finance, accounting, and business consulting markets both nationally and internationally.” Source: RevenueBase Database · checked Sep 20, 2026
13	Periscope Fiscalistes INC	Indirect evidence	St-jean-sur-richelieu, QC, CanadaHQ checked Sep 20, 2026	1-10	15 contacts →
	Indirect evidence “Avec son équipe spécialisée en fiscalité, Periscope met à profit un large spectre de connaissances nichées afin de vous conseiller en toute transparence et objectivité dans la…” Source: RevenueBase Database · checked Sep 20, 2026
14	Barsalou Lawson Rheault LLP	Partial evidence	Montréal, QC, CanadaHQ checked Sep 20, 2026	11-50	14 contacts →
	Partial evidence “Barsalou Lawson Rheault is recognized as one of Canada’s leading tax law firms.” Source: RevenueBase Database · checked Sep 20, 2026
15	Strategic TAX & Business Solutions INC	Partial evidence	Calgary, AB, CanadaHQ checked Sep 20, 2026	1-10	14 contacts →
	Partial evidence “Firm Profile Founded in Strategic Tax & Business Solutions Inc.(STBS) quickly earned a reputation for providing our clients with outstanding customer service as well as providing…” Source: RevenueBase Database · checked Sep 20, 2026
16	Summit Strategies Chartered Professional Accountants	Indirect evidence	Red Deer, AB, CanadaHQ checked Sep 20, 2026	11-50	13 contacts →
	Indirect evidence “Summit Strategies is a well rounded multi-disciplinary firm of professionals.” Source: RevenueBase Database · checked Sep 20, 2026
17	Oasiss CPA Corp. Previously Kaman Kwok INC	Partial evidence	Vancouver, BC, CanadaHQ checked Sep 20, 2026	1-10	13 contacts →
	Partial evidence “We are an US – Canadian tax firm that offers specialized cross-border tax planning, compliance and financial services.” Source: RevenueBase Database · checked Sep 20, 2026
18	Compasstax LLP	Strong evidence	Calgary, AB, CanadaHQ checked Sep 20, 2026	1-10	12 contacts →
	Strong evidence “CompassTAX provides Canada US cross-border, international assignment planning and tax compliance services for Canadian multi-national corporations and their global employees.” Source: RevenueBase Database · checked Sep 20, 2026
19	Stoutenberg & Company	Partial evidence	Olds, AB, CanadaHQ checked Sep 20, 2026	11-50	12 contacts →
	Partial evidence “Tax And Accounting Solutions Unique To You.” Source: RevenueBase Database · checked Sep 20, 2026
20	Mscm LLP	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 20, 2026	51-200	12 contacts →
	Indirect evidence “We have an abiding interest in two groups: those who work with us now (clients & firm members), & will in the future.” Source: RevenueBase Database · checked Sep 20, 2026
21	Vlad Alyokhin, Cpa, Professional Corporation	Partial evidence	Toronto, ON, CanadaHQ checked Sep 20, 2026	11-50	11 contacts →
	Partial evidence “Vlad Alyokhin, CPA, Professional Corporation is a full-service tax, accounting and consulting firm based in Toronto, Canada.” Source: RevenueBase Database · checked Sep 20, 2026
22	Zuleta Associates INC	Partial evidence	Cambridge, ON, CanadaHQ checked Sep 20, 2026	11-50	11 contacts →
	Partial evidence “Cambridge Home \| Cambridge Tax Consultant” Source: RevenueBase Database · checked Sep 20, 2026
23	LLN Partners LLP	Partial evidence	Vancouver, BC, CanadaHQ checked Sep 20, 2026	1-10	11 contacts →
	Partial evidence “professional services, accounting services, Corporations,preparation of tax returns, non-resident trusts to immigrant trusts, business planning,non-residents…” Source: RevenueBase Database · checked Sep 20, 2026
24	Impôts ICI	Indirect evidence	Montreal, CanadaHQ checked Sep 20, 2026	11-50	11 contacts →
	Indirect evidence “Bienvenue chez les professionnels de l’impôt et des services comptables!” Source: RevenueBase Database · checked Sep 20, 2026
25	Profidential	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 20, 2026	11-50	10 contacts →
	Indirect evidence “Profidential Inc is an accounting company based out of 9470 L'Acadie Blvd, Montreal, Quebec, Canada.” Source: RevenueBase Database · checked Sep 20, 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: international tax services. 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 international tax services.
Partial evidence: Its own public description names part of international tax services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name international tax services. 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 256 international tax services based in Canada

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 722 reachable decision-makers.

Free signup · no credit card

View the full list →

International tax services based in Canada at a glance

As of Sep 20, 2026

38.7%Verified-email coverage

7.3Average contacts per company

1-10Median size (employees)

14.5%Largest-city concentration · Toronto

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

184

11-50

51-200

201-500

501-1,000

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 256 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 international tax services, 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 “international tax services”. 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 international tax services), 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 international tax services, 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, 722 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 20, 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.

International tax services by metro

International tax services in Toronto37

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 international tax services, 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 international tax services are there based in Canada?

RevenueBase identified 256 international tax services 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?

FBC Farm And Small Business TAX Consultants, headquartered in Calgary, tops this list with the largest team on record.

Which city has the most international tax services?

Toronto leads with 37 headquartered companies, followed by Montreal (22) and Calgary (20).

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 722 verified decision-maker contacts tracked across these 256 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 20, 2026.

Ready to reach these companies? Verified emails and direct dials for all 256 international tax services based in Canada. Start with a free account, no credit card.

Download this list →

Related lists

International tax services by geography

Browse the directory

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.