Company lists · Data refreshed September 2026
Top 25 Tax services firms based in Toronto, Canada
RevenueBase identified 200 tax services firms headquartered in Toronto, Canada as of September 2026 and tracks 1,475 professional contacts across them, including 649 with verified work emails. Toronto is the largest hub.
This list covers tax services firms headquartered in Toronto, 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 22, 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 services firms based in Toronto, Canada
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 168 contacts → | ||||
Strong evidence “Zeifmans is a full-service tax, accounting and consulting firm based in Toronto, Canada.” Source: RevenueBase Database · checked Sep 22, 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 22, 2026Thanks. The Data Team will review it. | |||||
| 3 | 114 contacts → | ||||
Indirect evidence “McGovern Hurley commenced operations in 1980.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 4 | 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 22, 2026Thanks. The Data Team will review it. | |||||
| 5 | 41 contacts → | ||||
Strong evidence “Cadesky Tax is an independent tax consulting firm.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 6 | 33 contacts → | ||||
Strong evidence “Rosen & Associates Tax Law (“R&A Tax Law) is a national tax law firm based in Toronto, Ontario.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 7 | 31 contacts → | ||||
Strong evidence “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.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 8 | 31 contacts → | ||||
Indirect evidence “Tator, Rose and Leong has been providing high standard of professional services to small and medium sized business since 1974.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 9 | 28 contacts → | ||||
Strong evidence “In 1990, prestigious accountants Graeme Clark & Richard Horner opened a new kind of firm that extended beyond taxes, to help their clients even more.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 10 | 26 contacts → | ||||
Indirect evidence “CPA4IT (Chartered Professional Accountants for Information Technologists) is a Chartered Professional Accounting firm in Canada that focus on providing bookkeeping, accounting…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 11 | 22 contacts → | ||||
Strong 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 22, 2026Thanks. The Data Team will review it. | |||||
| 12 | 20 contacts → | ||||
Strong evidence “We have been providing accounting, assurance, and creative tax minimization strategies to individuals, corporations, and entrepreneurs for more than four decades.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 13 | 20 contacts → | ||||
Strong evidence “We're an independent Toronto-based licensed public accounting firm providing assurance, bookkeeping, consulting, financial advisory, risk management, tax and related services to…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 14 | 13 contacts → | ||||
Strong evidence “McCann & Associates is a full service tax and accounting firm located in Toronto.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 15 | 13 contacts → | ||||
Strong evidence “Toronto chartered accountants DCY Professional Corporation Chartered Professional Accountants provide accounting, consulting and tax preparation services for dental and health…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 16 | 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 22, 2026Thanks. The Data Team will review it. | |||||
| 17 | 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 22, 2026Thanks. The Data Team will review it. | |||||
| 18 | 11 contacts → | ||||
Strong evidence “Vlad Alyokhin, CPA, Professional Corporation is a full-service tax, accounting and consulting firm based in Toronto, Canada.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 19 | 11 contacts → | ||||
Indirect evidence “Established in 1990, our firm located at Yonge and Eglinton (midtown) has been providing our individual and business clients with a complete range of financial, accounting, audit…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 20 | 11 contacts → | ||||
Indirect evidence “About Kriens~LaRose The continuing mission of KL is maintaining service excellence by exceeding our client expectations through high quality, timely, responses to their needs at a…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 21 | 10 contacts → | ||||
Indirect evidence “Moses LLP, Chartered Professional Accountants is a boutique professional services firm located in mid-town Toronto that provides taxation, accounting and business advisory…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 22 | 10 contacts → | ||||
Indirect evidence “V-TAC was established in 1997 and introduced its accounting and taxation services to Canada.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 23 | 9 contacts → | ||||
Strong evidence “We provide a variety of tax and accounting services to our clients across Canada.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 24 | 9 contacts → | ||||
Strong evidence “At Ross Professional Corporation we specialize in personal and corporate income tax preparation services for those working in the arts and entertainment industry.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 25 | 9 contacts → | ||||
Indirect evidence “Gram LLP is a full service accounting firm led by professional advisors, all with previous experience in the Big Four.” Source: RevenueBase Database · checked Sep 22, 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 services firms. 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 services firms.
- Partial evidence
- Its own public description names part of tax services firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name tax services firms. 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 200 tax services firms based in Toronto, Canada
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Tax services firms based in Toronto, Canada at a glance
As of Sep 22, 2026Companies by employee count
Email recency for this list is measured across the whole Canada list rather than for Toronto, so it is reported there. Company counts and contact totals on this page are exact for Toronto, over 200 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 services firms, 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 Toronto, Canada whose own description of what they do matches “tax services firms”. 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 services firms), 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 services firms, and records with no verified work email. Companies headquartered outside Toronto 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, 649 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 22, 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 services firms by metro in Canada
- Tax services firms in Toronto200
- Tax services firms in Mississauga129
- Tax services firms in Calgary123
- Tax services firms in Montreal101
- Tax services firms in Vancouver73
- Tax services firms in Edmonton60
- Tax services firms in Ottawa53
- Tax services firms in Surrey50
- Tax services firms in Brampton44
- Tax services firms in Markham35
- Tax services firms in North York32
- Tax services firms in London31
- Tax services firms in Oakville29
- Tax services firms in Winnipeg28
- Tax services firms in Vaughan27
- Tax services firms in Laval25
- Tax services firms in Quebec25
- Tax services firms in Scarborough25
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 services firms, 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 services firms are there based in Toronto, Canada?
RevenueBase identified 200 tax services firms headquartered in Toronto, 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?
Zeifmans, headquartered in Toronto, tops this list with the largest team on record.
Which city has the most tax services firms?
Toronto leads with 200 headquartered companies, followed by Mississauga (129) and Calgary (123).
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 649 verified decision-maker contacts tracked across these 200 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 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 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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