Company lists · Data refreshed September 2026

Top 25 Corporate tax firms based in Toronto, Canada

Name: Corporate tax firms based in Toronto, Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 126 companies tracked

RevenueBase identified 126 corporate tax firms headquartered in Toronto, Canada as of September 2026 and tracks 1,109 professional contacts across them, including 532 with verified work emails. Toronto is the largest hub.

This list covers corporate tax 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 19, 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 19, 2026 86% judged on-target in blind review

126Companies

1,109Contacts tracked

532Verified emails

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The 25 largest corporate tax firms based in Toronto, Canada

Ranked by team size

Top 25 of 126 corporate tax firms based in Toronto, Canada, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to corporate tax firms: 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	Zeifmans	Partial evidence	Toronto, ON, CanadaHQ checked Sep 19, 2026	51-200	168 contacts →
	Partial evidence “Zeifmans is a full-service tax, accounting and consulting firm based in Toronto, Canada.” Source: RevenueBase Database · checked Sep 19, 2026
2	Trowbridge Professional Corporation	Strong evidence	Toronto, ON, CanadaHQ checked Sep 19, 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 19, 2026
3	Lipton LLP	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 19, 2026	51-200	77 contacts →
	Indirect evidence “Quality Service.” Source: RevenueBase Database · checked Sep 19, 2026
4	SRJ Chartered Professional Accountants Canada	Partial evidence	Toronto, ON, CanadaHQ checked Sep 19, 2026	51-200	58 contacts →
	Partial 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 19, 2026
5	Cadesky TAX	Partial evidence	Toronto, ON, CanadaHQ checked Sep 19, 2026	11-50	41 contacts →
	Partial evidence “Cadesky Tax is an independent tax consulting firm.” Source: RevenueBase Database · checked Sep 19, 2026
6	Rosen & Associates TAX LAW	Partial evidence	Toronto, ON, CanadaHQ checked Sep 19, 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 19, 2026
7	Sblr LLP Chartered Professional Accountants	Partial evidence	Toronto, ON, CanadaHQ checked Sep 19, 2026	11-50	31 contacts →
	Partial 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 19, 2026
8	GTA Accounting Business TAX Toronto	Strong evidence	Toronto, ON, CanadaHQ checked Sep 19, 2026	11-50	29 contacts →
	Strong evidence “GTA Accounting Professional Corporation, Chartered Professional Accountants, has extensive tax and accounting experience in the GTA.” Source: RevenueBase Database · checked Sep 19, 2026
9	Clark & Horner LLP	Partial evidence	Toronto, ON, CanadaHQ checked Sep 19, 2026	11-50	28 contacts →
	Partial 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 19, 2026
10	G&g Partnership, LLP	Strong evidence	Toronto, ON, CanadaHQ checked Sep 19, 2026	11-50	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 19, 2026
11	Taxpayer LAW	Partial evidence	Toronto, ON, CanadaHQ checked Sep 19, 2026	11-50	15 contacts →
	Partial evidence “Taxpayer Law \| Tax Litigation & Dispute Resolution For inquiries, contact igor@taxpayer.law or visit At Taxpayer Law, we focus exclusively on tax litigation and dispute resolution.” Source: RevenueBase Database · checked Sep 19, 2026
12	Mccann & Associates LLP	Partial evidence	Toronto, ON, CanadaHQ checked Sep 19, 2026	11-50	13 contacts →
	Partial evidence “McCann & Associates is a full service tax and accounting firm located in Toronto.” Source: RevenueBase Database · checked Sep 19, 2026
13	Mscm LLP	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 19, 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 19, 2026
14	Vlad Alyokhin, Cpa, Professional Corporation	Strong evidence	Toronto, ON, CanadaHQ checked Sep 19, 2026	11-50	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 19, 2026
15	Counter TAX Litigators LLP	Partial evidence	Toronto, ON, CanadaHQ checked Sep 19, 2026	11-50	11 contacts →
	Partial evidence “Counter Tax Litigators LLP focuses exclusively on tax disputes involving established private companies and executive-level CRA exposure.” Source: RevenueBase Database · checked Sep 19, 2026
16	Moses LLP Chartered Professional Accountants	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 19, 2026	1-10	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 19, 2026
17	Taxchambers LLP	Partial evidence	Toronto, ON, CanadaHQ checked Sep 19, 2026	11-50	10 contacts →
	Partial evidence “TaxChambers LLP is a tax law firm located in Toronto's financial district.” Source: RevenueBase Database · checked Sep 19, 2026
18	V-Tac Accounting & TAX	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 19, 2026	11-50	10 contacts →
	Indirect evidence “V-TAC was established in 1997 and introduced its accounting and taxation services to Canada.” Source: RevenueBase Database · checked Sep 19, 2026
19	TAX Mechanic	Partial evidence	Toronto, ON, CanadaHQ checked Sep 19, 2026	11-50	9 contacts →
	Partial evidence “We provide a variety of tax and accounting services to our clients across Canada.” Source: RevenueBase Database · checked Sep 19, 2026
20	Ross Professional Corporation - CPA	Strong evidence	Toronto, ON, CanadaHQ checked Sep 19, 2026	11-50	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 19, 2026
21	GRAM	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 19, 2026	1-10	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 19, 2026
22	Reality Capital Management	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 19, 2026	1-10	9 contacts →
	Indirect evidence “Reality Capital Management has been in existence since 2009 providing Controllership, Accounting, Internal Audits, Payroll Management & Taxation Solutions to Small & Medium…” Source: RevenueBase Database · checked Sep 19, 2026
23	Rotfleisch & Samulovitch P.C	Partial evidence	Toronto, CanadaHQ checked Sep 19, 2026	11-50	8 contacts →
	Partial evidence “Individuals, businesses of all sizes, organizations and even charities will face tax issues from time to time.” Source: RevenueBase Database · checked Sep 19, 2026
24	Sdg, Chartered Professional Accountant	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 19, 2026	1-10	8 contacts →
	Indirect evidence “SDG Accountant is a firm established in the eastern region of Toronto.” Source: RevenueBase Database · checked Sep 19, 2026
25	Grunwald & Co. Chartered Professional Accountants	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 19, 2026	1-10	7 contacts →
	Indirect evidence “Grunwald & Co.” Source: RevenueBase Database · checked Sep 19, 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: corporate tax 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 corporate tax firms.
Partial evidence: Its own public description names part of corporate tax firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name corporate tax 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 126 corporate tax firms based in Toronto, Canada

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Corporate tax firms based in Toronto, Canada at a glance

As of Sep 19, 2026

48.0%Verified-email coverage

8.8Average contacts per company

1-10Median size (employees)

100.0%Largest-city concentration · Toronto

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 126 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 corporate tax 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 “corporate tax 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 corporate tax 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 corporate tax 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, 532 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 19, 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.

Corporate tax firms by metro in Canada

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 corporate tax 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 corporate tax firms are there based in Toronto, Canada?

RevenueBase identified 126 corporate tax 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 corporate tax firms?

Toronto leads with 126 headquartered companies, followed by Mississauga (72) and Calgary (68).

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 532 verified decision-maker contacts tracked across these 126 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 19, 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.