Company lists · Data refreshed September 2026

Top 25 Back office accounting services based in Canada

Name: Back office accounting services based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 1,364 companies tracked

RevenueBase identified 1,364 back office accounting services headquartered in Canada as of September 2026 and tracks 4,504 professional contacts across them, including 1,138 with verified work emails. Toronto is the largest hub.

This list covers back office accounting 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 19, 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 19, 2026 86% judged on-target in blind review

1,364Companies

4,504Contacts tracked

1,138Verified emails

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The 25 largest back office accounting services based in Canada

Ranked by team size

Top 25 of 1,364 back office accounting services based in Canada, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to back office accounting 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	Obox Solution LTD	Partial evidence	Toronto, ON, CanadaHQ checked Sep 19, 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 19, 2026
2	ENKEL	Partial evidence	Vancouver, BC, CanadaHQ checked Sep 19, 2026	51-200	93 contacts →
	Partial evidence “Enkel is on a mission to disrupt the delivery of accounting and bookkeeping services with transformational cloud-based accounting technology.” Source: RevenueBase Database · checked Sep 19, 2026
3	Park West Professional Services	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 19, 2026	51-200	64 contacts →
	Indirect evidence “Park West Professional Services is a company based out of 100 Park Royal S, W, Vancouver, British Columbia, Canada.” Source: RevenueBase Database · checked Sep 19, 2026
4	Accounting Farm	Partial evidence	Brampton, ON, CanadaHQ checked Sep 19, 2026	11-50	63 contacts →
	Partial evidence “At Accounting Farm, we focus on one thing, helping CPA firms in the USA, Canada, UK, and Australia scale smarter with reliable offshore bookkeeping, tax preparation, and complete…” Source: RevenueBase Database · checked Sep 19, 2026
5	RSP LLP	Indirect evidence	Vaughan, ON, CanadaHQ checked Sep 19, 2026	51-200	52 contacts →
	Indirect evidence “Accountants equipped to help you grow and plan your organization into a strong, stable financial future.” Source: RevenueBase Database · checked Sep 19, 2026
6	SNPS	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 19, 2026	11-50	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 19, 2026
7	Accounting Plus Business Services	Indirect evidence	North York, ON, CanadaHQ checked Sep 19, 2026	11-50	35 contacts →
	Indirect evidence “Annual yearend preparation: Corporate and self-employed financial statements preparation including filing of corporate and personal income tax returns.” Source: RevenueBase Database · checked Sep 19, 2026
8	Preferred Client Services Group LTD	Indirect evidence	Edmonton, AB, CanadaHQ checked Sep 19, 2026	11-50	28 contacts →
	Indirect evidence “Entrepreneurs sometimes wonder if they need a more accomplished bookkeeper than they currently have.” Source: RevenueBase Database · checked Sep 19, 2026
9	Orbit Accountants	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 19, 2026	11-50	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 19, 2026
10	Wave Taxes	Partial evidence	Calgary, AB, CanadaHQ checked Sep 19, 2026	11-50	26 contacts →
	Partial evidence “At Wave Taxes Inc, We empower entrepreneurs across Canada to boost their revenue and grow their businesses with our tailored accounting outsourcing solutions.” Source: RevenueBase Database · checked Sep 19, 2026
11	Accountor CPA	Partial evidence	North York, ON, CanadaHQ checked Sep 19, 2026	11-50	25 contacts →
	Partial evidence “Accountor CPA offers a wide range of accounting services for small and medium sized businesses.” Source: RevenueBase Database · checked Sep 19, 2026
12	Cabinet Comptable Ex&co CPA INC	Partial evidence	Sherbrooke, QC, CanadaHQ checked Sep 19, 2026	11-50	22 contacts →
	Partial evidence “Ex & Co accounting firm offers a complete range of services to business owners in matters of accounts, taxation, bookkeeping and payroll.” Source: RevenueBase Database · checked Sep 19, 2026
13	It's Your Time Business Services INC	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 19, 2026	1-10	21 contacts →
	Indirect evidence “Managing your business should be fun and exciting; not a headache.” Source: RevenueBase Database · checked Sep 19, 2026
14	Aquifer CFO	Partial evidence	Toronto, ON, CanadaHQ checked Sep 19, 2026	11-50	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 19, 2026
15	Flexserv	Partial evidence	Toronto, MB, CanadaHQ checked Sep 19, 2026	11-50	19 contacts →
	Partial evidence “Flexserv becomes the Accounting and HR departments of our small and medium size enterprise clients.” Source: RevenueBase Database · checked Sep 19, 2026
16	Balncd INC	Indirect evidence	Winnipeg, MB, CanadaHQ checked Sep 19, 2026	11-50	19 contacts →
	Indirect evidence “balncd was an idea born to address a common issue among small- and medium-sized corporations: having an internal bookkeeping department was expensive and doing the books…” Source: RevenueBase Database · checked Sep 19, 2026
17	Clarified Accounting	Partial evidence	St John’s, NL, CanadaHQ checked Sep 19, 2026	11-50	19 contacts →
	Partial evidence “At Clarified Accounting we aim to simplify accounting, bookkeeping and finance functions for start-ups and small business owners.” Source: RevenueBase Database · checked Sep 19, 2026
18	Avalon Accounting	Indirect evidence	Victoria, BC, CanadaHQ checked Sep 19, 2026	11-50	19 contacts →
	Indirect evidence “To all the Canadian small businesses out there, your success equation starts here with Avalon.” Source: RevenueBase Database · checked Sep 19, 2026
19	Affinity Accountants LLP	Partial evidence	Surrey, BC, CanadaHQ checked Sep 19, 2026	11-50	17 contacts →
	Partial evidence “Affinity Accountants LLP is a full-service accounting firm based in Surrey, BC, specializing in bookkeeping, assurance, tax, and business consulting.” Source: RevenueBase Database · checked Sep 19, 2026
20	Resolve Accounting Professional Corporation	Partial evidence	Calgary, AB, CanadaHQ checked Sep 19, 2026	1-10	17 contacts →
	Partial evidence “Resolve Accounting delivers exceptional Accounting and Bookkeeping solutions to small, medium businesses and personal clients throughout Calgary and surrounding areas.” Source: RevenueBase Database · checked Sep 19, 2026
21	Taxwide	Partial evidence	Mississauga, ON, CanadaHQ checked Sep 19, 2026	11-50	17 contacts →
	Partial evidence “Taxwide is one of Canada’s leading and fastest growing income tax and accounting firms.” Source: RevenueBase Database · checked Sep 19, 2026
22	Bottom Line Accounting Solutions	Partial evidence	Toronto, ON, CanadaHQ checked Sep 19, 2026	11-50	16 contacts →
	Partial evidence “Accounting and Bookkeeping Services” Source: RevenueBase Database · checked Sep 19, 2026
23	Ledgersonline INC	Partial evidence	North Vancouver, BC, CanadaHQ checked Sep 19, 2026	11-50	15 contacts →
	Partial evidence “Run Your Business, Not Your Accounting Department.” Source: RevenueBase Database · checked Sep 19, 2026
24	Targeted Accounting	Partial evidence	Richmond Hill, ON, CanadaHQ checked Sep 19, 2026	11-50	15 contacts →
	Partial evidence “Targeted Accounting is committed to tailoring its services to your company’s specific accounting needs.” Source: RevenueBase Database · checked Sep 19, 2026
25	Shift Financial Insights	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 19, 2026	11-50	15 contacts →
	Indirect evidence “Shift is a lively team of professional CPAs who do all the seemingly boring, kind of painstaking, totally annoying, and sort of scary yet truly valuable stuff that comes with…” Source: RevenueBase Database · checked Sep 19, 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: back office accounting 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 back office accounting services.
Partial evidence: Its own public description names part of back office accounting services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name back office accounting 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 1,364 back office accounting services based in Canada

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Back office accounting services based in Canada at a glance

As of Sep 19, 2026

25.3%Verified-email coverage

3.3Average contacts per company

1-10Median size (employees)

9.8%Largest-city concentration · Toronto

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

1,190

11-50

142

51-200

201-500

501-1,000

Email recency for this list is measured worldwide rather than for Canada, so it is reported there. Company counts and contact totals on this page are exact for Canada, over 1,364 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 back office accounting 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 “back office accounting 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 back office accounting 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 back office accounting 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, 1,138 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 19, 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.

Back office accounting services by metro

Back office accounting services in Toronto133
Back office accounting services in Calgary91
Back office accounting services in Mississauga50
Back office accounting services in Montreal41
Back office accounting services in Edmonton39
Back office accounting services in Ottawa35
Back office accounting services in Vancouver35
Back office accounting services in Surrey34

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 back office accounting 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 back office accounting services are there based in Canada?

RevenueBase identified 1,364 back office accounting 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?

Obox Solution LTD, headquartered in Toronto, tops this list with the largest team on record.

Which city has the most back office accounting services?

Toronto leads with 133 headquartered companies, followed by Calgary (91) and Mississauga (50).

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 1,138 verified decision-maker contacts tracked across these 1,364 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 19, 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.