Company lists · Data refreshed September 2026
Top 25 Accounting firm software companies based in Mississauga, Canada
RevenueBase identified 82 accounting firm software companies headquartered in Mississauga, Canada as of September 2026 and tracks 538 professional contacts across them, including 241 with verified work emails. Toronto is the largest hub.
This list covers accounting firm software companies headquartered in Mississauga, 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 21, 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.
The 25 largest accounting firm software companies based in Mississauga, Canada
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 72 contacts → | ||||
Partial evidence “We are an accounting, tax, and business consulting firm based in the Greater Toronto Area, Canada.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 40 contacts → | ||||
Indirect evidence “Welcome to Farnham.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 25 contacts → | ||||
Partial evidence “Founded in 1977, the team at Gilmore & Company LLP specializes in a wide range of services from accounting, auditing and taxation to business valuations, estate, trust planning…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 23 contacts → | ||||
Partial evidence “Think Accounting is a tech-savvy accounting firm based in Greater Toronto Area helping ambitious and growth-focused business owners.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 21 contacts → | ||||
Strong evidence “Soluno is the best-in-class time, billing, and accounting software that is specialized for law firms and their unique needs.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 17 contacts → | ||||
Partial evidence “Taxwide is one of Canada’s leading and fastest growing income tax and accounting firms.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 15 contacts → | ||||
Partial evidence “ADYZER®, Your Financial Advisor At ADYZER®, we help businesses and CPA firms across North America strengthen their finance functions through CPA-led outsourced accounting and…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 12 contacts → | ||||
Indirect evidence “we are full service firm providing Accouting, Bookkeeping, Assurance, Tax planning and financing work.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 10 contacts → | ||||
Partial evidence “Since 2010, we’ve established a city-wide reputation for leading our clients to success through our premium accounting and advisory services and friendly attitude.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 9 contacts → | ||||
Partial evidence “Designated professional accountant Adam Maciuba has over 20 years of experience in corporate and small business accounting- CPA, CMA designated - QuickBooks Certified Business and…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 7 contacts → | ||||
Partial evidence “We are a small public accounting firm based in Mississauga, ON, Canada specializing in corporate audit, review, tax and accounting services.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 7 contacts → | ||||
Indirect evidence “Accountants & Tax Consultants.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 6 contacts → | ||||
Partial evidence “WesternCPA provides highly professional and customized services in Accounting, Business Analysis, and Tax for small to mid-sized businesses and help them increase their confidence…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 5 contacts → | ||||
Partial evidence “McCann & Roque Chartered Professional Accountants is a full service public accounting and business advisory firm, serving the Mississauga and the Golden Horseshoe area since 1991.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 5 contacts → | ||||
Partial evidence “Tax and Accounting Experts Inc.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 4 contacts → | ||||
Partial evidence “Ebrahimjee & Essaji Professional Accountants is one of the leading firms providing Tax, Accounting and Consulting services across Ontario.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 4 contacts → | ||||
Indirect evidence “Mr.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 4 contacts → | ||||
Partial evidence “At G&P Account services team of Chartered professional accounts is ready to provide to you with full range of accounting, tax and insurance services.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 4 contacts → | ||||
Indirect evidence “At Taxology, Chartered Accountant, we have been proudly serving GTA, and surrounding areas.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 3 contacts → | ||||
Partial evidence “Axil Alliance CPA LLP is a full-service public practice accounting and management consulting firm offering an extensive portfolio of services within Canada and worldwide.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 3 contacts → | ||||
Partial evidence “Globe Accountants & Financial Services Inc.(GAAFS) is a 100% subsidiary of Iyer’s Accounting Services Inc.(IAS) and a member of the Canadian Franchise Association.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 3 contacts → | ||||
Indirect evidence “THE CAPEX CPA STORY We founded Capex CPA in 2015 to be the Firm of the Future.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 3 contacts → | ||||
Indirect evidence “At Catalyst Solutions, we are passionate about helping small and mid-sized businesses, corporations, startups, and high net-worth professionals navigate the complexities of…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 3 contacts → | ||||
Partial evidence “ASA offers a full range of customized Accounting, Tax and Business Advisory services to Small and Mid-size Enterprises.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
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 firm software companies. 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 firm software companies.
- Partial evidence
- Its own public description names part of accounting firm software companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name accounting firm software companies. 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 82 accounting firm software companies based in Mississauga, Canada
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Accounting firm software companies based in Mississauga, Canada at a glance
As of Sep 21, 2026Companies by employee count
Email recency for this list is measured across the whole Canada list rather than for Mississauga, so it is reported there. Company counts and contact totals on this page are exact for Mississauga, over 82 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 accounting firm software companies, 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 Mississauga, Canada whose own description of what they do matches “accounting firm software companies”. 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 firm software companies), 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 firm software companies, and records with no verified work email. Companies headquartered outside Mississauga 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, 241 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 21, 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 firm software companies by metro in Canada
- Accounting firm software companies in Toronto175
- Accounting firm software companies in Calgary93
- Accounting firm software companies in Montreal86
- Accounting firm software companies in Mississauga82
- Accounting firm software companies in Vancouver74
- Accounting firm software companies in Edmonton50
- Accounting firm software companies in Ottawa42
- Accounting firm software companies in Laval35
- Accounting firm software companies in Quebec30
- Accounting firm software companies in Surrey26
- Accounting firm software companies in Vaughan25
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 firm software companies, 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 firm software companies are there based in Mississauga, Canada?
RevenueBase identified 82 accounting firm software companies headquartered in Mississauga, 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?
S C Partners, headquartered in Mississauga, tops this list with the largest team on record.
Which city has the most accounting firm software companies?
Toronto leads with 175 headquartered companies, followed by Calgary (93) and Montreal (86).
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 241 verified decision-maker contacts tracked across these 82 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 21, 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.
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