Company lists · Data refreshed September 2026

Top 25 Accounting and outsourcing services based in Canada

Name: Accounting and outsourcing services based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 3,207 companies tracked

RevenueBase identified 3,207 accounting and outsourcing services headquartered in Canada as of September 2026 and tracks 30,480 professional contacts across them, including 13,584 with verified work emails and 1,618 with mobile numbers. Toronto is the largest hub.

This list covers accounting and outsourcing services 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 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 22, 2026 86% judged on-target in blind review

3,207Companies

30,480Contacts tracked

13,584Verified emails

1,618Mobile numbers

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The 25 largest accounting and outsourcing services based in Canada

Ranked by team size

Top 25 of 3,207 accounting and outsourcing services based in Canada, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to accounting and outsourcing services: 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	Partial evidence	Calgary, AB, CanadaHQ checked Sep 22, 2026	5,001-10,000	8,773 contacts →
	Partial evidence “MNP is a leading national accounting, tax and business consulting firm in Canada.” Source: RevenueBase Database · checked Sep 22, 2026
2	Crowe Mackay LLP	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 22, 2026	201-500	402 contacts →
	Indirect evidence “Crowe MacKay LLP is a vibrant team of trusted advisors in eight cities across western and northern Canada.” Source: RevenueBase Database · checked Sep 22, 2026
3	Welch LLP	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 22, 2026	201-500	399 contacts →
	Partial evidence “Welch LLP is a Chartered Public Accounting firm that has deep roots in the communities it serves.” Source: RevenueBase Database · checked Sep 22, 2026
4	FBL S.E.N.C.R.L. Société DE Comptables Professionnels Agréés	Indirect evidence	Montréal, QC, CanadaHQ checked Sep 22, 2026	201-500	347 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 22, 2026
5	Dmcl Chartered Professional Accountants	Partial evidence	Vancouver, BC, CanadaHQ checked Sep 22, 2026	201-500	316 contacts →
	Partial 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 22, 2026
6	Crowe Soberman	Partial evidence	Toronto, ON, CanadaHQ checked Sep 22, 2026	51-200	265 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 22, 2026
7	Kingston Ross Pasnak LLP	Indirect evidence	Edmonton, AB, CanadaHQ checked Sep 22, 2026	51-200	218 contacts →
	Indirect evidence “Kingston Ross Pasnak offers an array of comprehensive services through our highly skilled professionals.” Source: RevenueBase Database · checked Sep 22, 2026
8	HNA S.E.N.C.R.L	Partial evidence	Anjou, QC, CanadaHQ checked Sep 22, 2026	51-200	206 contacts →
	Partial evidence “HNA LLP is a multidisciplinary accounting firm that is among the 20 largest players in Quebec.” Source: RevenueBase Database · checked Sep 22, 2026
9	PSB Boisjoli	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 22, 2026	51-200	206 contacts →
	Indirect evidence “Basé à Montréal, PSB BOISJOLI S.E.N.C.R.L.” Source: RevenueBase Database · checked Sep 22, 2026
10	Smythe LLP	Partial evidence	Vancouver, BC, CanadaHQ checked Sep 22, 2026	201-500	199 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 22, 2026
11	BVA	Indirect evidence	Sainte-marie, QC, CanadaHQ checked Sep 22, 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 22, 2026
12	Zeifmans	Partial evidence	Toronto, ON, CanadaHQ checked Sep 22, 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 22, 2026
13	Bcgo S.E.N.C.R.L	Indirect evidence	Montréal, QC, CanadaHQ checked Sep 22, 2026	51-200	164 contacts →
	Indirect evidence “BCGO est un cabinet indépendant d’expertise comptable et de services-conseils aux entrepreneurs.” Source: RevenueBase Database · checked Sep 22, 2026
14	Hcsc INC	Indirect evidence	Longueuil, QC, CanadaHQ checked Sep 22, 2026	n/a	164 contacts →
	Indirect evidence “Services-conseils en optimisation de processus d'affaires, comptabilité, financement, démarrage d'entreprise, implantation de logiciel de gestion intégrée et recrutement.” Source: RevenueBase Database · checked Sep 22, 2026
15	Lemieux Nolet	Indirect evidence	Lévis, QC, CanadaHQ checked Sep 22, 2026	201-500	163 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 22, 2026
16	DJB Chartered Professional Accountants	Indirect evidence	St. Catharines, ON, CanadaHQ checked Sep 22, 2026	51-200	155 contacts →
	Indirect evidence “BIG ENOUGH TO KNOW.” Source: RevenueBase Database · checked Sep 22, 2026
17	FCR Freelandt Caldwell Reilly LLP	Indirect evidence	Sudbury, ON, CanadaHQ checked Sep 22, 2026	51-200	137 contacts →
	Indirect evidence “We're FCR, YOUR Chartered Professional Accountants!” Source: RevenueBase Database · checked Sep 22, 2026
18	Obox Solution LTD	Partial evidence	Toronto, ON, CanadaHQ checked Sep 22, 2026	201-500	133 contacts →
	Partial evidence “At Obox Solution Ltd, we support accounting firms and mid-market businesses by providing tailored virtual staffing solutions for bookkeeping, payroll, CFO services, tax, financial…” Source: RevenueBase Database · checked Sep 22, 2026
19	Davis Martindale LLP	Indirect evidence	London, ON, CanadaHQ checked Sep 22, 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 22, 2026
20	BJC	Indirect evidence	Sainte-julie, QC, CanadaHQ checked Sep 22, 2026	51-200	120 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 22, 2026
21	Mcgovern Hurley LLP	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 22, 2026	51-200	114 contacts →
	Indirect evidence “McGovern Hurley commenced operations in 1980.” Source: RevenueBase Database · checked Sep 22, 2026
22	Amyot Gélinas	Indirect evidence	Ste-agathe-des-monts, QC, CanadaHQ checked Sep 22, 2026	51-200	114 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 22, 2026
23	Marcil Lavallée	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 22, 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 22, 2026
24	Melo LLP	Indirect evidence	Leamington, ON, CanadaHQ checked Sep 22, 2026	51-200	103 contacts →
	Indirect evidence “With a deep affinity for progress and bold entrepreneurialism, Melo LLP is an integrated, multidisciplinary team committed to driving business sustainability and growth.” Source: RevenueBase Database · checked Sep 22, 2026
25	SB Partners	Partial evidence	Burlington, ON, CanadaHQ checked Sep 22, 2026	51-200	98 contacts →
	Partial evidence “SB Partners is a full service accounting firm located in Burlington, Ontario.” Source: RevenueBase Database · checked Sep 22, 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: accounting and outsourcing services. 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 accounting and outsourcing services.
Partial evidence: Its own public description names part of accounting and outsourcing services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name accounting and outsourcing services. 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 3,207 accounting and outsourcing services based in Canada

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Accounting and outsourcing services based in Canada at a glance

As of Sep 22, 2026

44.6%Verified-email coverage

5.3%Mobile-number coverage

9.5Average contacts per company

1-10Median size (employees)

11.6%Largest-city concentration · Toronto

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

2,444

11-50

592

51-200

112

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 24.0d

10,3940–30

2,94731–60

17661–90

590–180

62180+

Company record updated

Median 78.0d

00–30

8,27031–60

14,33861–90

5,73190–180

2,141180+

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 accounting and outsourcing services, 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 “accounting and outsourcing services”. 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 accounting and outsourcing services), 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 accounting and outsourcing services, 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, 13,584 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.

Accounting and outsourcing services by metro

Accounting and outsourcing services in Toronto373
Accounting and outsourcing services in Calgary200
Accounting and outsourcing services in Mississauga164
Accounting and outsourcing services in Montreal164
Accounting and outsourcing services in Vancouver147
Accounting and outsourcing services in Edmonton112
Accounting and outsourcing services in Ottawa80
Accounting and outsourcing services in Surrey61
Accounting and outsourcing services in Winnipeg53
Accounting and outsourcing services in Brampton52
Accounting and outsourcing services in Quebec50
Accounting and outsourcing services in Laval46
Accounting and outsourcing services in Markham43
Accounting and outsourcing services in Oakville43
Accounting and outsourcing services in Vaughan40
Accounting and outsourcing services in London38
Accounting and outsourcing services in Richmond Hill37
Accounting and outsourcing services in Kitchener28
Accounting and outsourcing services in Victoria27

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 accounting and outsourcing services, 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 accounting and outsourcing services are there based in Canada?

RevenueBase identified 3,207 accounting and outsourcing services 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 accounting and outsourcing services?

Toronto leads with 373 headquartered companies, followed by Calgary (200) and Mississauga (164).

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 13,584 verified decision-maker contacts tracked across these 3,207 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.