Company lists · Data refreshed September 2026

Top 25 Tax outsourcing companies based in Canada

RevenueBase identified 822 company matches for tax outsourcing companies associated with Canada as of September 2026 and tracks 3,281 professional contacts across them, including 902 with verified work emails. Toronto is the largest hub.

This list covers company matches for tax outsourcing companies 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 21, 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 21, 2026 How this list was built
822Companies
3,281Contacts tracked
902Verified emails
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The 25 largest tax outsourcing companies based in Canada

Ranked by team size
Top 25 of 822 company matches for tax outsourcing companies based in Canada, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 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 matchCalgary, AB, CanadaHQ recorded Sep 21, 2026201-500260 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 21, 2026 · View company records in RevenueBase
2Exact matchOttawa, ON, CanadaHQ recorded Sep 21, 202651-20080 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 21, 2026 · View company records in RevenueBase
3Exact matchBrampton, ON, CanadaHQ recorded Sep 21, 202611-5063 contacts →

Exact match

“At Accounting Farm, we focus on one thing, helping CPA firms in the USA, Canada, UK, and Australia scale smarter with reliable offshore bookkeeping, tax preparation, and complete…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4Exact matchBrossard, QC, CanadaHQ recorded Sep 21, 202651-20051 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 21, 2026 · View company records in RevenueBase
5Exact matchToronto, ON, CanadaHQ recorded Sep 21, 202611-5041 contacts →

Exact match

“Cadesky Tax is an independent tax consulting firm.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6Exact matchToronto, ON, CanadaHQ recorded Sep 21, 202611-5031 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 21, 2026 · View company records in RevenueBase
7Exact matchCalgary, AB, CanadaHQ recorded Sep 21, 202611-5026 contacts →

Exact match

“At Wave Taxes Inc, We empower entrepreneurs across Canada to boost their revenue and grow their businesses with our tailored accounting outsourcing solutions.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8Exact matchEdmonton, AB, CanadaHQ recorded Sep 21, 202611-5025 contacts →

Exact match

“Gallo LLP is an #accounting firm with offices in both Edmonton and Sherwood Park.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9Exact matchNorth York, ON, CanadaHQ recorded Sep 21, 202611-5025 contacts →

Exact match

“Accountor CPA offers a wide range of accounting services for small and medium sized businesses.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10Exact matchCalgary, AB, CanadaHQ recorded Sep 21, 202611-5024 contacts →

Exact match

“ACCOUNTING, BOOKKEEPING AND ADVICE.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11Exact matchLondon, ON, CanadaHQ recorded Sep 21, 202611-5024 contacts →

Exact match

“C&V Income Tax Services is a professional tax service office operating in London, Ontario since 1988.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12Exact matchNew Westminster, BC, CanadaHQ recorded Sep 21, 202611-5020 contacts →

Exact match

“Kaushal & Co.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13Exact matchScarborough, ON, CanadaHQ recorded Sep 21, 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 · Sep 21, 2026 · View company records in RevenueBase
14Exact matchVictoria, BC, CanadaHQ recorded Sep 21, 202611-5019 contacts →

Exact match

“To all the Canadian small businesses out there, your success equation starts here with Avalon.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15Exact matchMississauga, ON, CanadaHQ recorded Sep 21, 202611-5017 contacts →

Exact match

“Consulting, Business Plans, Bookkeeping, Accounting and Tax Filing Services for small businesses, professionals and individuals.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16Exact matchCalgary, AB, CanadaHQ recorded Sep 21, 20261-1017 contacts →

Exact match

“Resolve Accounting delivers exceptional Accounting and Bookkeeping solutions to small, medium businesses and personal clients throughout Calgary and surrounding areas.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17Exact matchMississauga, ON, CanadaHQ recorded Sep 21, 202611-5017 contacts →

Exact match

“Taxwide is one of Canada’s leading and fastest growing income tax and accounting firms.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18Exact matchWinnipeg, MB, CanadaHQ recorded Sep 21, 202611-5016 contacts →

Exact match

“McLenehan and Associates Chartered Professional Accountants is a public accounting firm registered with the Chartered Professional Accountants of Manitoba.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19Exact matchNewmarket, ON, CanadaHQ recorded Sep 21, 202611-5016 contacts →

Exact match

“We are guided by our relentless focus on providing superior service, innovation, quality and commitment to our clients.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20Exact matchVictoriaville, QC, CanadaHQ recorded Sep 21, 202651-20015 contacts →

Exact match

“Pellerin Aubert Ramsay Provencher inc, fondé en 1980, a son siège social à Victoriaville.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21Exact matchSaint-lambert, QC, CanadaHQ recorded Sep 21, 202611-5013 contacts →

Exact match

“Notre cabinet offre une gamme étendue de services en comptabilité et en fiscalité.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22Exact matchToronto, CanadaHQ recorded Sep 21, 20261-1013 contacts →

Exact match

“Toronto Tax Boutique is dedicated to serving the tax, accounting, and bookkeeping needs of businesses and individuals throughout Canada and the United States.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23Exact matchOttawa, ON, CanadaHQ recorded Sep 21, 202611-5013 contacts →

Exact match

“AI Tax Consultants specializes in delivering tax and accounting services to individuals, self-employed and corporations.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24Exact matchWindsor, ON, CanadaHQ recorded Sep 21, 20261-1013 contacts →

Exact match

“Accutax & Services is a tax preparation service established in 1997.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25Exact matchCalgary, AB, CanadaHQ recorded Sep 21, 202611-5012 contacts →

Exact match

“We've been in business for over 40 years, and by working with more than clients every year, we've seen it all.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

Showing 25 of 822 tax outsourcing companies based in Canada

See the full list, filter by size, metro and specialty, and access 902 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Tax outsourcing companies based in Canada at a glance

As of Sep 21, 2026
27.5%Verified-email coverage
4.0Average contacts per company
1-10Median size (employees)
10.1%Largest-city concentration · Toronto
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
684
11-50
113
51-200
11
201-500
2

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 822 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 “tax outsourcing companies” 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 902 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 21, 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.

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 “tax outsourcing companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many tax outsourcing companies are there based in Canada?

RevenueBase identified 822 company matches for tax outsourcing companies 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?

FBC Farm And Small Business TAX Consultants tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most tax outsourcing companies?

Toronto leads with 83 company records, followed by Calgary (56) and Mississauga (52).

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 902 professional contacts with verified work emails tracked across these 822 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 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 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.