Company lists · Data verified August 2026

Top 25 Accounting firms based in Mississauga, Canada

Name: Accounting firms based in Mississauga, Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 213 companies tracked

There are 213 accounting firms headquartered in Mississauga, Canada (RevenueBase, August 2026). RevenueBase tracks 1,103 professional contacts across them, including 416 with verified work emails and 45 with mobile numbers. Toronto is the largest hub.

This list covers accounting firms headquartered in Mississauga, Canada, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

213Companies

1,103Contacts tracked

416Verified emails

45Mobile numbers

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The 25 largest accounting firms based in Mississauga, Canada

Ranked by team size

Top 25 of 213 accounting firms based in Mississauga, Canada, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	S C Partners	Mississauga, ON	51-200	89	64
2	Clearhouse LLP	Mississauga, ON	51-200	69	44
3	Bateman Mackay LLP	Mississauga, ON	51-200	52	39
4	Farnham Accountants & Advisors	Mississauga, ON	11-50	40	32
5	Mccarney Group LLP	Mississauga, ON	11-50	30	18
6	DW LLP	Mississauga, ON	11-50	27	12
7	Gilmore & Company LLP	Mississauga, ON	11-50	24	16
8	Madan Chartered Accountant	Mississauga, ON	11-50	24	7
9	Think Accounting	Mississauga, ON	11-50	23	19
10	SMB Llp, Cpas	Mississauga, ON	11-50	19	8
11	Taxwide	Mississauga, ON	11-50	18	1
12	Firstcare Financial Services LTD	Mississauga, ON	11-50	16	6
13	Hdcpa Professional Corporation	Mississauga, ON	11-50	15	5
14	HS & Partners Llp, Chartered Professional Accountants	Mississauga, ON	11-50	14	6
15	Dulay & Dulay Professional Corporation	Mississauga, ON	11-50	14	4
16	ENT LLP Mississauga	Mississauga, ON	1-10	12	9
17	Numeracy Accounting Solutions	Mississauga, ON	11-50	10	5
18	F Silveira, Chartered Professional Accountants	Mississauga, ON	1-10	10	3
19	SGA Globe	Mississauga, ON	11-50	8	3
20	Cats Accounting	Mississauga, ON	1-10	8	1
21	GPC Chartered Professional Accountants	Mississauga, ON	1-10	7	1
22	TAX Plan INC Canada	Mississauga, ON	1-10	6	2
23	Taxvisors	Mississauga, ON	1-10	6	1
24	Bros Professional Group	Mississauga, ON	1-10	6	1
25	Macgillivray Partners	Mississauga, ON	11-50	5	5

Showing 25 of 213 accounting firms based in Mississauga, Canada

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Accounting firms based in Mississauga, Canada at a glance

As of Aug 28, 2026

1-10Median size (employees)

TorontoLargest hub · 416 HQs

45Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

162

11-50

51-200

Accounting firms by metro in Canada

Metro	Companies
Accounting firms in Toronto	416
Accounting firms in Calgary	244
Accounting firms in Montreal	213
Accounting firms in Mississauga	213
Accounting firms in Vancouver	194
Accounting firms in Edmonton	129
Accounting firms in Ottawa	93
Accounting firms in Surrey	76

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “accounting firms”, with match quality audited by blind human judging, and headquartered in Mississauga, Canada.
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: Contact records re-verify on a rolling cadence; 0 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many accounting firms are there based in Mississauga, Canada?

There are 213 accounting firms headquartered in Mississauga, Canada as of August 2026 (RevenueBase).

What is the largest company on this list?

S C Partners, headquartered in Mississauga, tops this list with the largest team on record.

Which city has the most accounting firms?

Toronto leads with 416 headquartered companies, followed by Calgary (244) and Montreal (213).

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 416 verified decision-maker contacts tracked across these 213 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.