Company lists · Data refreshed September 2026

Top 25 Tax accounting firms based in Canada

Name: Tax accounting 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 3,283 companies tracked

RevenueBase identified 3,283 tax accounting firms headquartered in Canada as of September 2026 and tracks 31,448 professional contacts across them, including 14,472 with verified work emails and 1,591 with mobile numbers. Toronto is the largest hub.

This list covers tax accounting 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

3,283Companies

31,448Contacts tracked

14,472Verified emails

1,591Mobile numbers

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest tax accounting firms based in Canada

Ranked by team size

Top 25 of 3,283 tax accounting 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 accounting 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 →
	“MNP is a leading national accounting, tax and business consulting firm in Canada.” Source: company website · checked Sep 6, 2026
2	Crowe Mackay LLP	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 6, 2026	201-500	402 contacts →
	“Crowe MacKay LLP is a vibrant team of trusted advisors in eight cities across western and northern Canada.” Source: company website · checked Sep 6, 2026
3	Welch LLP	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 6, 2026	201-500	399 contacts →
	“Welch LLP is a Chartered Public Accounting firm that has deep roots in the communities it serves.” Source: company website · checked Sep 6, 2026
4	FBL S.E.N.C.R.L. Société DE Comptables Professionnels Agréés	Indirect evidence	Montréal, QC, CanadaHQ checked Sep 6, 2026	201-500	347 contacts →
	“FBL \| SOCIÉTÉ DE COMPTABLES PROFESSIONNELS AGRÉÉS Ayant été désigné comme étant l’un des dix plus grands cabinets au Québec, FBL jouit d’une solide expertise depuis plus de 40 ans.” Source: company website · checked Sep 6, 2026
5	Dmcl Chartered Professional Accountants	Partial evidence	Vancouver, BC, CanadaHQ checked Sep 6, 2026	201-500	316 contacts →
	“DMCL LLP is a full-service accounting firm dedicated to helping you achieve and exceed your business goals, no matter how ambitious.” Source: company website · checked Sep 6, 2026
6	Crowe Soberman	Partial evidence	Toronto, ON, CanadaHQ checked Sep 6, 2026	51-200	265 contacts →
	“As an award-winning public accounting firm, we provide exceptional professional service (by being accessible, responsive and proactive) to meet the special and on-going individual…” Source: company website · checked Sep 6, 2026
7	FBC Farm And Small Business TAX Consultants	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 6, 2026	201-500	260 contacts →
	“For more than 70 years, our focus has always been to bring financial peace of mind to our Canadian business owners.” Source: company website · checked Sep 6, 2026
8	Segal Gcse LLP	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 6, 2026	201-500	258 contacts →
	“At Segal GCSE LLP, we embrace an ambitious firm philosophy: to provide our valued clients with an expansive service experience that enables greater opportunities for growth and…” Source: company website · checked Sep 6, 2026
9	Kingston Ross Pasnak LLP	Indirect evidence	Edmonton, AB, CanadaHQ checked Sep 6, 2026	51-200	218 contacts →
	“Kingston Ross Pasnak offers an array of comprehensive services through our highly skilled professionals.” Source: company website · checked Sep 6, 2026
10	PSB Boisjoli	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 6, 2026	51-200	206 contacts →
	“Basé à Montréal, PSB BOISJOLI S.E.N.C.R.L.” Source: company website · checked Sep 6, 2026
11	Smythe LLP	Partial evidence	Vancouver, BC, CanadaHQ checked Sep 6, 2026	201-500	199 contacts →
	“Smythe is a BC-based accounting firm recognized for exceptional work in the areas of assurance, taxation and business advisory services for private and public companies…” Source: company website · checked Sep 6, 2026
12	Fuller Landau LLP	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 6, 2026	51-200	192 contacts →
	“Work together with people excited by your goals and eager to address your unique business needs.” Source: company website · checked Sep 6, 2026
13	BVA	Indirect evidence	Sainte-marie, QC, CanadaHQ checked Sep 6, 2026	201-500	170 contacts →
	“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: company website · checked Sep 6, 2026
14	Zeifmans	Strong evidence	Toronto, ON, CanadaHQ checked Sep 6, 2026	51-200	168 contacts →
	“Zeifmans is a full-service tax, accounting and consulting firm based in Toronto, Canada.” Source: company website · checked Sep 6, 2026
15	Bcgo S.E.N.C.R.L	Indirect evidence	Montréal, QC, CanadaHQ checked Sep 6, 2026	51-200	164 contacts →
	“BCGO est un cabinet indépendant d’expertise comptable et de services-conseils aux entrepreneurs.” Source: company website · checked Sep 6, 2026
16	Lemieux Nolet	Indirect evidence	Lévis, QC, CanadaHQ checked Sep 6, 2026	201-500	163 contacts →
	“Lemieux Nolet, cabinet de comptables professionnels agréés, œuvre dans le domaine depuis 1949 en vous offrant entre autres des services en certification, fiscalité, évaluation…” Source: company website · checked Sep 6, 2026
17	Trowbridge Professional Corporation	Strong evidence	Toronto, ON, CanadaHQ checked Sep 6, 2026	51-200	161 contacts →
	“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: company website · checked Sep 6, 2026
18	Davis Martindale LLP	Indirect evidence	London, ON, CanadaHQ checked Sep 6, 2026	51-200	122 contacts →
	“At Davis Martindale, our accountants work to bring you the peace of mind you’re in search of with a touch of personality.” Source: company website · checked Sep 6, 2026
19	BJC	Indirect evidence	Sainte-julie, QC, CanadaHQ checked Sep 6, 2026	51-200	120 contacts →
	“BJC = compétence + connaissance + expérience BJC est un cabinet à guichet unique offrant une gamme complète de services comptables adaptés aux besoins des sociétés privées.” Source: company website · checked Sep 6, 2026
20	Mcgovern Hurley LLP	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 6, 2026	51-200	114 contacts →
	“McGovern Hurley commenced operations in 1980.” Source: company website · checked Sep 6, 2026
21	Amyot Gélinas	Indirect evidence	Ste-agathe-des-monts, QC, CanadaHQ checked Sep 6, 2026	51-200	114 contacts →
	“Dès la création du cabinet Amyot Gélinas il y a maintenant plus de 30 ans, notre rêve était de grandir avec notre clientèle et de développer avec elle un partenariat fondé sur le…” Source: company website · checked Sep 6, 2026
22	Marcil Lavallée	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 6, 2026	51-200	109 contacts →
	“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: company website · checked Sep 6, 2026
23	Thorsteinssons TAX Lawyers	Partial evidence	Vancouver, BC, CanadaHQ checked Sep 6, 2026	51-200	106 contacts →
	“Thorsteinssons is the largest Canadian law firm practicing exclusively in Tax.” Source: company website · checked Sep 6, 2026
24	Melo LLP	Indirect evidence	Leamington, ON, CanadaHQ checked Sep 6, 2026	51-200	103 contacts →
	“With a deep affinity for progress and bold entrepreneurialism, Melo LLP is an integrated, multidisciplinary team committed to driving business sustainability and growth.” Source: company website · checked Sep 6, 2026
25	SB Partners	Partial evidence	Burlington, ON, CanadaHQ checked Sep 6, 2026	51-200	98 contacts →
	“SB Partners is a full service accounting firm located in Burlington, Ontario.” Source: company website · 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 accounting 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 accounting firms.
Partial evidence: Its own public description names part of tax accounting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name tax accounting 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 3,283 tax accounting firms based in Canada

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 14,472 reachable decision-makers.

Free signup · no credit card

View the full list →

Tax accounting firms based in Canada at a glance

As of Sep 6, 2026

46.0%Verified-email coverage

5.1%Mobile-number coverage

9.6Average contacts per company

1-10Median size (employees)

9.7%Largest-city concentration · Toronto

Sep 6, 2026Page data refreshed

Companies by employee count

1-10

2,440

11-50

675

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

13,4630–30

94731–60

261–90

290–180

58180+

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 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 accounting 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 accounting 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 accounting 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, 14,472 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 accounting 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 accounting 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 accounting firms are there based in Canada?

RevenueBase identified 3,283 tax accounting 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 accounting firms?

Toronto leads with 320 headquartered companies, followed by Calgary (214) and Mississauga (176).

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 14,472 verified decision-maker contacts tracked across these 3,283 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.

Ready to reach these companies? Verified emails and direct dials for all 3,283 tax accounting firms based in Canada. Start with a free account, no credit card.

Download this list →

Related lists

Tax accounting firms by geography

Browse the directory

Browse: Companies home · All Canada lists · All Tax accounting firms lists · New lists

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.