Company lists · Data refreshed September 2026
Top 25 Tax accounting outsourcing companies based in Canada
RevenueBase identified 797 tax accounting outsourcing companies headquartered in Canada as of September 2026 and tracks 3,258 professional contacts across them, including 1,017 with verified work emails. Toronto is the largest hub.
This list covers tax accounting outsourcing companies 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 29, 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.
The 25 largest tax accounting outsourcing companies based in Canada
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 94 contacts → | ||||
Strong evidence “GGFL is the tax planning and accounting firm for Ottawa’s successful business people.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 63 contacts → | ||||
Strong evidence “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…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 58 contacts → | ||||
Strong evidence “SRJ Chartered Accountants is a cloud based Canadian full-service tax and accounting firm located in the heart of downtown Toronto, Mississauga and Oakville.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 51 contacts → | ||||
Indirect evidence “Services * Expansion américaine et/ou internationale;* Conformité fiscale américaine (corporative);* Conformité fiscale américaine (individu);* « Snowbirds » et immobilier…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 26 contacts → | ||||
Strong evidence “At Wave Taxes Inc, We empower entrepreneurs across Canada to boost their revenue and grow their businesses with our tailored accounting outsourcing solutions.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 25 contacts → | ||||
Partial evidence “Gallo LLP is an #accounting firm with offices in both Edmonton and Sherwood Park.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 22 contacts → | ||||
Partial evidence “Prime Tax Solutions is a Group of Professionals and Individuals Who Appreciate that Not Everyone’s Needs are the Same.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 20 contacts → | ||||
Indirect evidence “Kaushal & Co.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 19 contacts → | ||||
Indirect evidence “To all the Canadian small businesses out there, your success equation starts here with Avalon.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 17 contacts → | ||||
Strong evidence “Consulting, Business Plans, Bookkeeping, Accounting and Tax Filing Services for small businesses, professionals and individuals.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 17 contacts → | ||||
Strong evidence “Taxwide is one of Canada’s leading and fastest growing income tax and accounting firms.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 16 contacts → | ||||
Indirect evidence “Our firm offers a wide range of services to our individual and business clients.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 16 contacts → | ||||
Indirect evidence “We are guided by our relentless focus on providing superior service, innovation, quality and commitment to our clients.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 15 contacts → | ||||
Indirect evidence “Pellerin Aubert Ramsay Provencher inc, fondé en 1980, a son siège social à Victoriaville.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 14 contacts → | ||||
Strong evidence “The team at AccountingKW provides effective solutions in respect of tax planning including consulting strategies for business related needs.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 14 contacts → | ||||
Strong evidence “The SRTK team of professional accountants has the expertise and experience to handle accounting, tax, and consulting activities for a variety of individuals and organizations.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 13 contacts → | ||||
Indirect evidence “Notre cabinet offre une gamme étendue de services en comptabilité et en fiscalité.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 13 contacts → | ||||
Strong evidence “Toronto Tax Boutique is dedicated to serving the tax, accounting, and bookkeeping needs of businesses and individuals throughout Canada and the United States.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 13 contacts → | ||||
Strong evidence “AI Tax Consultants specializes in delivering tax and accounting services to individuals, self-employed and corporations.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 13 contacts → | ||||
Partial evidence “Accutax & Services is a tax preparation service established in 1997.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 12 contacts → | ||||
Indirect evidence “We've been in business for over 40 years, and by working with more than clients every year, we've seen it all.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 12 contacts → | ||||
Indirect evidence “On partage de grandes valeurs.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
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: tax accounting outsourcing companies. 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 tax accounting outsourcing companies.
- Partial evidence
- Its own public description names part of tax accounting outsourcing companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name tax accounting outsourcing companies. 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 797 tax accounting outsourcing companies based in Canada
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Tax accounting outsourcing companies based in Canada at a glance
As of Sep 29, 2026Companies by employee count
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 797 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 tax accounting outsourcing companies, 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 “tax accounting outsourcing companies”. 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 tax accounting outsourcing companies), 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 tax accounting outsourcing companies, 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, 1,017 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 29, 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.
Tax accounting outsourcing companies by metro
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 tax accounting outsourcing companies, 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 tax accounting outsourcing companies are there based in Canada?
RevenueBase identified 797 tax accounting outsourcing companies 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 tax accounting outsourcing companies?
Toronto leads with 87 headquartered companies, followed by Mississauga (52) and Calgary (45).
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 1,017 verified decision-maker contacts tracked across these 797 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 29, 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.
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