Company lists · Data refreshed September 2026

Top 25 Tax consulting firms based in Canada

Name: Tax consulting firms based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 6, 2026 933 companies tracked

RevenueBase identified 933 tax consulting firms headquartered in Canada as of September 2026 and tracks 15,575 professional contacts across them, including 8,102 with verified work emails and 848 with mobile numbers. Toronto is the largest hub.

This list covers tax consulting firms 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 6, 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 6, 2026 86% judged on-target in blind review

933Companies

15,575Contacts tracked

8,102Verified emails

848Mobile numbers

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The 25 largest tax consulting firms based in Canada

Ranked by team size

Top 25 of 933 tax consulting firms based in Canada, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to tax consulting 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	MNP	Strong evidence	Calgary, AB, CanadaHQ checked Sep 6, 2026	5,001-10,000	8,773 contacts →
	Strong evidence “MNP is a leading national accounting, tax and business consulting firm in Canada.” Source: RevenueBase Database · checked Sep 6, 2026
2	Dmcl Chartered Professional Accountants	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 6, 2026	201-500	316 contacts →
	Indirect evidence “DMCL LLP is a full-service accounting firm dedicated to helping you achieve and exceed your business goals, no matter how ambitious.” Source: RevenueBase Database · checked Sep 6, 2026
3	FBC Farm And Small Business TAX Consultants	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 6, 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 6, 2026
4	Fuller Landau LLP	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 6, 2026	51-200	192 contacts →
	Indirect evidence “Work together with people excited by your goals and eager to address your unique business needs.” Source: RevenueBase Database · checked Sep 6, 2026
5	BVA	Indirect evidence	Sainte-marie, QC, CanadaHQ checked Sep 6, 2026	201-500	170 contacts →
	Indirect evidence “Depuis maintenant plus de 60 ans, BVA a développé une panoplie de services axés sur les préoccupations des entrepreneurs, des professionnels et des dirigeants d’entreprises.” Source: RevenueBase Database · checked Sep 6, 2026
6	Zeifmans	Strong evidence	Toronto, ON, CanadaHQ checked Sep 6, 2026	51-200	168 contacts →
	Strong evidence “Zeifmans is a full-service tax, accounting and consulting firm based in Toronto, Canada.” Source: RevenueBase Database · checked Sep 6, 2026
7	Trowbridge Professional Corporation	Partial evidence	Toronto, ON, CanadaHQ checked Sep 6, 2026	51-200	161 contacts →
	Partial 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 6, 2026
8	Davis Martindale LLP	Indirect evidence	London, ON, CanadaHQ checked Sep 6, 2026	51-200	122 contacts →
	Indirect evidence “At Davis Martindale, our accountants work to bring you the peace of mind you’re in search of with a touch of personality.” Source: RevenueBase Database · checked Sep 6, 2026
9	Marcil Lavallée	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 6, 2026	51-200	109 contacts →
	Indirect evidence “Marcil Lavallée est un partenaire engagé qui contribue activement à la réussite de ses clients en anticipant leurs besoins et en leur offrant une gamme complète de solutions…” Source: RevenueBase Database · checked Sep 6, 2026
10	Thorsteinssons TAX Lawyers	Partial evidence	Vancouver, BC, CanadaHQ checked Sep 6, 2026	51-200	106 contacts →
	Partial evidence “Thorsteinssons is the largest Canadian law firm practicing exclusively in Tax.” Source: RevenueBase Database · checked Sep 6, 2026
11	SB Partners	Indirect evidence	Burlington, ON, CanadaHQ checked Sep 6, 2026	51-200	98 contacts →
	Indirect evidence “SB Partners is a full service accounting firm located in Burlington, Ontario.” Source: RevenueBase Database · checked Sep 6, 2026
12	Ggfl LLP	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 6, 2026	51-200	94 contacts →
	Partial evidence “GGFL is the tax planning and accounting firm for Ottawa’s successful business people.” Source: RevenueBase Database · checked Sep 6, 2026
13	Gauvreau Accounting TAX LAW Advisory	Partial evidence	Peterborough, ON, CanadaHQ checked Sep 6, 2026	51-200	88 contacts →
	Partial evidence “At Gauvreau Accounting Tax Law Advisory, entrepreneurship drives everything we do.” Source: RevenueBase Database · checked Sep 6, 2026
14	Invictus Accounting Group LLP	Strong evidence	Vancouver, BC, CanadaHQ checked Sep 6, 2026	51-200	86 contacts →
	Strong evidence “Located in the heart of Downtown Vancouver, Invictus Accounting Group LLP provides consulting, accounting and tax advisory for publicly listed and privately held companies.” Source: RevenueBase Database · checked Sep 6, 2026
15	S C Partners	Partial evidence	Mississauga, ON, CanadaHQ checked Sep 6, 2026	51-200	82 contacts →
	Partial evidence “S+C Partners has been providing professional accounting, advisory and tax services across the GTA since 1987.” Source: RevenueBase Database · checked Sep 6, 2026
16	Baker Tilly Ottawa LLP	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 6, 2026	51-200	80 contacts →
	Partial evidence “At Baker Tilly Ottawa LLP, we provide expert tax, assurance, and entrepreneurial services to help your business grow and prosper.” Source: RevenueBase Database · checked Sep 6, 2026
17	Kenway Mack Slusarchuk Stewart LLP	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 6, 2026	51-200	71 contacts →
	Indirect evidence “At KMSS we strive to provide an extraordinary experience.” Source: RevenueBase Database · checked Sep 6, 2026
18	Felesky Flynn LLP	Partial evidence	Edmonton, AB, CanadaHQ checked Sep 6, 2026	51-200	70 contacts →
	Partial evidence “With offices in Calgary, Edmonton and Saskatoon, Felesky Flynn LLP provides Canadian and international tax planning, tax representation and litigation, and wills and estates…” Source: RevenueBase Database · checked Sep 6, 2026
19	SRJ Chartered Professional Accountants Canada	Partial evidence	Toronto, ON, CanadaHQ checked Sep 6, 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 6, 2026
20	Horizon Chartered Professional Accountants	Indirect evidence	Vancouver, CanadaHQ checked Sep 6, 2026	11-50	56 contacts →
	Indirect evidence “At Horizon Chartered Professional Accountants we know that financial success is achieved by more than careful planning and experienced decision-making: it is realized through a…” Source: RevenueBase Database · checked Sep 6, 2026
21	Romanovsky & Associates LLP	Indirect evidence	Edmonton & Toronto, CanadaHQ checked Sep 6, 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 6, 2026
22	Cfla S.E.N.C.R.L. LLP	Indirect evidence	Brossard, QC, CanadaHQ checked Sep 6, 2026	51-200	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 6, 2026
23	Hutcheson & CO CPA LLP	Indirect evidence	Victoria, BC, CanadaHQ checked Sep 6, 2026	11-50	49 contacts →
	Indirect evidence “Since 1987, Hutcheson & Co.” Source: RevenueBase Database · checked Sep 6, 2026
24	Dusanj & Wirk Chartered Professional Accountants INC	Indirect evidence	Victoria, BC, CanadaHQ checked Sep 6, 2026	11-50	44 contacts →
	Indirect evidence “Dusanj & Wirk is an accounting firm based in Victoria, BC, providing accounting, taxation, auditing and advisory services.” Source: RevenueBase Database · checked Sep 6, 2026
25	HGA Chartered Professional Accountants	Indirect evidence	Edmonton, AB, CanadaHQ checked Sep 6, 2026	51-200	41 contacts →
	Indirect evidence “Welcome to HGA!” Source: RevenueBase Database · checked Sep 6, 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: tax consulting 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 consulting firms.
Partial evidence: Its own public description names part of tax consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name tax consulting 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 933 tax consulting firms based in Canada

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Tax consulting firms based in Canada at a glance

As of Sep 6, 2026

52.0%Verified-email coverage

5.4%Mobile-number coverage

16.7Average contacts per company

1-10Median size (employees)

12.4%Largest-city concentration · Toronto

Sep 6, 2026Page data refreshed

Companies by employee count

1-10

670

11-50

208

51-200

201-500

501-1,000

5,001-10,000

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

7,5480–30

50331–60

261–90

190–180

48180+

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 consulting 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 Canada whose own description of what they do matches “tax consulting 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 consulting 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 consulting firms, 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, 8,102 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 6, 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 consulting firms 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 consulting 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 consulting firms are there based in Canada?

RevenueBase identified 933 tax consulting firms 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?

MNP, headquartered in Calgary, tops this list with the largest team on record.

Which city has the most tax consulting firms?

Toronto leads with 116 headquartered companies, followed by Mississauga (64) and Calgary (58).

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 8,102 verified decision-maker contacts tracked across these 933 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 6, 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.