Company lists · Data refreshed September 2026
Top 10 Pro bono accounting firms based in Canada
RevenueBase identified 31 pro bono accounting firms headquartered in Canada as of September 2026 and tracks 332 professional contacts across them, including 165 with verified work emails and 19 with mobile numbers. Toronto is the largest hub.
This list covers pro bono 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 10 largest pro bono accounting firms based in Canada
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 155 | ||||
“BIG ENOUGH TO KNOW.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 22 | ||||
“Rapkin Wein LLP is a firm of professional accountants of diverse backgrounds and interests who have come together to provide personalized, pro-active, efficient and effective…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | Western Business LAW ClinicStrong evidence | 19 | |||
“The Western Business Law Clinic (WBLC) strives to alleviate the burden of legal complexities on aspiring entrepreneurs by providing small startup businesses with pro bono legal…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | 14 | ||||
“Have a community initiative but are unsure of how to build it up?” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | Cass & Fraser Chartered AccountantsIndirect evidence | 4 | |||
Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | 4 | ||||
“Freeman & Lourenco LLP is a community-based CPA firm serving Oshawa, Whitby, Durham Region and the GTA since 1979.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | 3 | ||||
“Our clients define our business.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | Swann AccountingPartial evidence | 2 | |||
“Tax Preparation Accounting and Bookkeeping Services” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | 2 | ||||
“Saurin Patel is a professional accountant working in the field of accounting and finance for more than 15 years.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | 2 | ||||
“Accounting & Tax Services visit our website for more information” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
Showing 10 of 31 pro bono accounting firms based in Canada
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Pro bono accounting firms based in Canada at a glance
As of Sep 5, 2026Companies by employee count
Verified emails by last verification
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 pro bono accounting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Canada whose own description of what they do matches “pro bono accounting firms”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among pro bono 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 an evidence 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, 165 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 5, 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.
Frequently asked
How many pro bono accounting firms are there based in Canada?
RevenueBase identified 31 pro bono 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?
DJB Chartered Professional Accountants, headquartered in St. Catharines, tops this list with the largest team on record.
Which city has the most pro bono accounting firms?
Toronto leads with 5 headquartered companies, followed by Burlington (2) and Calgary (2).
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 165 verified decision-maker contacts tracked across these 31 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 5, 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 SmartSearch, 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.