Company lists · Data refreshed September 2026
Top 25 Accounting firm business process outsourcing companies based in Toronto, Canada
RevenueBase identified 273 accounting firm business process outsourcing companies headquartered in Toronto, Canada as of September 2026 and tracks 2,346 professional contacts across them, including 856 with verified work emails. Across Canada, Toronto is the largest hub for this category.
This list covers accounting firm business process outsourcing companies headquartered in Toronto, 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 27, 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 business process outsourcing companies based in Toronto, Canada
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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 27, 2026Thanks. The Data Team will review it. | |||||
| 2 | 258 contacts → | ||||
Indirect evidence “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: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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 27, 2026Thanks. The Data Team will review it. | |||||
| 4 | 114 contacts → | ||||
Indirect evidence “McGovern Hurley commenced operations in 1980.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 5 | 63 contacts → | ||||
Partial evidence “Adams + Miles delivers accounting, audit, assurance and strategic consulting services to clients across sectors.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 6 | 57 contacts → | ||||
Partial evidence “The talented team at Stern Cohen specializes in accounting, tax, advisory, estate planning and bookkeeping services for businesses and not-for-profits in the Greater Toronto Area…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 7 | 57 contacts → | ||||
Indirect evidence “At LiveCA, we think it's important for your accountant to speak your language and stay on top of technology so you can get the best and most efficient service possible for your…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 8 | 52 contacts → | ||||
Partial evidence “Yale PGC is one of the Greater Toronto Area’s most progressive and reputable mid-sized accounting, audit, taxation, and business advisory firms.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 9 | 48 contacts → | ||||
Partial evidence “Fruitman Kates LLP is a public accounting firm based out of 1055 Eglinton Ave W, Toronto, ON, Canada.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 10 | 41 contacts → | ||||
Indirect evidence “We are passionate to learn about our clients businesses and embark on an unrelenting pursuit of excellence.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 11 | 40 contacts → | ||||
Partial evidence “Hogg, Shain & Scheck is a boutique professional accounting firm with over 46 years of experience providing audit, tax, and advisory services to entrepreneurs, corporations, and…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 12 | 37 contacts → | ||||
Partial evidence “Your customized accounting and financial services solution.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 13 | 36 contacts → | ||||
Partial evidence “Accountimize is built with a mission to help our clients change old, manual, and inefficient practices through the adoption of the proven, leading-edge supporting technologies…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 14 | 31 contacts → | ||||
Indirect evidence “Tator, Rose and Leong has been providing high standard of professional services to small and medium sized business since 1974.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 15 | 29 contacts → | ||||
Partial evidence “Miller Bernstein LLP is a mid-sized, full-service accounting firm.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 16 | 29 contacts → | ||||
Partial evidence “Accounting for Law provides Financial peace of mind for lawyers The cornerstone of our service involves providing a comprehensive Legal bookkeeping service for sole practitioners…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 17 | 28 contacts → | ||||
Indirect evidence “At Orbit Accountants, we are dedicated to being your trusted finance partner at every stage of growth.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 18 | 26 contacts → | ||||
Partial evidence “CPA4IT (Chartered Professional Accountants for Information Technologists) is a Chartered Professional Accounting firm in Canada that focus on providing bookkeeping, accounting…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 19 | 24 contacts → | ||||
Indirect evidence “Outsourced finance team for small-medium sized businesses and not for profits.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 20 | 22 contacts → | ||||
Indirect evidence “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: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 21 | 20 contacts → | ||||
Partial evidence “We're an independent Toronto-based licensed public accounting firm providing assurance, bookkeeping, consulting, financial advisory, risk management, tax and related services to…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 22 | 19 contacts → | ||||
Indirect evidence “CloudAct is a cloud based trusted business advisor for thriving business.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 23 | 19 contacts → | ||||
Partial evidence “We’re your plug-in finance department that once and for all solves all your accounting/finance needs so you can concentrate on building your business.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 24 | 16 contacts → | ||||
Partial evidence “Accounting and Bookkeeping Services” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 25 | 15 contacts → | ||||
Partial evidence “AI-powered fractional CFOs and outsourced accounting services provide businesses with expert financial guidance, enhanced by advanced AI tools, at a fraction of the cost of a…” Source: RevenueBase Database · checked Sep 27, 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 business process outsourcing 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 business process outsourcing companies.
- Partial evidence
- Its own public description names part of accounting firm business process outsourcing 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 business process outsourcing 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 273 accounting firm business process outsourcing companies based in Toronto, Canada
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Accounting firm business process outsourcing companies based in Toronto, Canada at a glance
As of Sep 27, 2026Companies by employee count
Email recency for this list is measured across the whole Canada list rather than for Toronto, so it is reported there. Company counts and contact totals on this page are exact for Toronto, over 273 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 business process outsourcing 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 Toronto, Canada whose own description of what they do matches “accounting firm business process outsourcing 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 business process outsourcing 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 business process outsourcing companies, and records with no verified work email. Companies headquartered outside Toronto 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, 856 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 27, 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 business process outsourcing companies by metro in Canada
- Accounting firm business process outsourcing companies in Calgary138
- Accounting firm business process outsourcing companies in Montreal118
- Accounting firm business process outsourcing companies in Mississauga114
- Accounting firm business process outsourcing companies in Vancouver112
- Accounting firm business process outsourcing companies in Edmonton63
- Accounting firm business process outsourcing companies in Ottawa58
- Accounting firm business process outsourcing companies in Winnipeg42
- Accounting firm business process outsourcing companies in Surrey41
- Accounting firm business process outsourcing companies in Markham37
- Accounting firm business process outsourcing companies in Laval33
- Accounting firm business process outsourcing companies in Vaughan33
- Accounting firm business process outsourcing companies in Oakville26
- Accounting firm business process outsourcing companies in Richmond Hill25
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 business process outsourcing 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 business process outsourcing companies are there based in Toronto, Canada?
RevenueBase identified 273 accounting firm business process outsourcing companies headquartered in Toronto, 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?
Crowe Soberman, headquartered in Toronto, tops this list with the largest team on record.
Which city in Canada has the most accounting firm business process outsourcing companies?
Toronto leads Canada with 273 headquartered companies, followed by Calgary (138) and Montreal (118).
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 856 verified decision-maker contacts tracked across these 273 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 27, 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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