Company lists · Data refreshed September 2026

Top 25 Outsource back office services based in Canada

RevenueBase identified 133 company matches for outsource back office services associated with Canada as of September 2026 and tracks 1,652 professional contacts across them, including 346 with verified work emails. Toronto is the largest hub.

This list covers company matches for outsource back office services associated with Canada, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 21, 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 21, 2026 How this list was built
133Companies
1,652Contacts tracked
346Verified emails
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The 25 largest outsource back office services based in Canada

Ranked by team size
Top 25 of 133 company matches for outsource back office services based in Canada, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchCalgary, AB, CanadaHQ recorded Sep 21, 202651-200234 contacts →

Exact match

“WCD helps organizations rethink their back-office operations.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2Exact matchSaint John, NB, CanadaHQ recorded Sep 21, 2026201-500137 contacts →

Exact match

“Operating for 20+ years, Innovatia Technical Services Inc.(ITSI) is a technology outsourcing support partner, assisting clients with workflow & knowledge processes and technical…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3Exact matchToronto, ON, CanadaHQ recorded Sep 21, 2026201-500133 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4Exact matchToronto, ON, CanadaHQ recorded Sep 21, 2026201-500130 contacts →

Exact match

“Paradigm Quest Inc.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5Exact matchVancouver, BC, CanadaHQ recorded Sep 21, 202651-20064 contacts →

Exact match

“Park West Professional Services is a company based out of 100 Park Royal S, W, Vancouver, British Columbia, Canada.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6Exact matchOttawa, ON, CanadaHQ recorded Sep 21, 202611-5056 contacts →

Exact match

“Business Sherpa Group provides flexible and affordable outsourced operations support to small and medium-sized enterprises (SMEs) across Canada.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7Exact matchToronto, ON, CanadaHQ recorded Sep 21, 2026501-1,00050 contacts →

Exact match

“Simpro is a world wide provider of outsourced call center and back office services including customer service,help desk,technical support,telemarketing,email and chat support.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8Exact matchLaval, QC, CanadaHQ recorded Sep 21, 202651-20047 contacts →

Exact match

“Depuis 1998, Groupe Marketing International accompagne les entreprises à accélérer leur croissance, grâce à un ensemble de services d’impartition complet tels que le…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9Exact matchToronto, CanadaHQ recorded Sep 21, 202651-20032 contacts →

Exact match

“At Veta Virtual, we’re not just answering calls, we’re building relationships.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10Exact matchToronto, ON, CanadaHQ recorded Sep 21, 202611-5028 contacts →

Exact match

“Founded in 2017, Bumsa is a Canadian-owned outsourcing and consulting firm that provides cost-effective business solutions to help organizations scale efficiently.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11Exact matchCalgary, AB, CanadaHQ recorded Sep 21, 202611-5026 contacts →

Exact match

“At Wave Taxes Inc, We empower entrepreneurs across Canada to boost their revenue and grow their businesses with our tailored accounting outsourcing solutions.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12Exact matchToronto, ON, CanadaHQ recorded Sep 21, 2026201-50026 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13Exact matchToronto, ON, CanadaHQ recorded Sep 21, 202611-5019 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14Exact matchToronto, MB, CanadaHQ recorded Sep 21, 202611-5019 contacts →

Exact match

“Flexserv becomes the Accounting and HR departments of our small and medium size enterprise clients.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15Exact matchSainte-thérèse, QC, CanadaHQ recorded Sep 21, 202611-5015 contacts →

Exact match

“Chez Algo Service de paie, nous offrons des services d’impartition de la paie aux PME et aux organisations pour leur permettre de se concentrer sur l’essentiel : leurs opérations.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16Exact matchMontreal, QC, CanadaHQ recorded Sep 21, 202611-5013 contacts →

Exact match

“Hire employees without the cost, time and admin through our BPO services.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17Exact matchToronto, ON, CanadaHQ recorded Sep 21, 202651-20013 contacts →

Exact match

“System Support Services is a family run mid-size firm that is helping global clients across US, UK, Canada and Australia outsource their business processes including Bulk Data…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18Exact matchToronto, ON, CanadaHQ recorded Sep 21, 202611-5011 contacts →

Exact match

“Black Tulip is a Toronto-based provider of client-focused, administrative back-office services.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19Exact matchMarkham, ON, CanadaHQ recorded Sep 21, 202611-5010 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20Exact matchDartmouth, NS, CanadaHQ recorded Sep 21, 202611-509 contacts →

Exact match

“Cutting edge technology and systems designed to expedite project delivery times and ensure accuracy across all of our services, including traditional accounting, bookkeeping…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21Exact matchMarkham, ON, CanadaHQ recorded Sep 21, 2026501-1,0008 contacts →

Exact match

“At Remote WorkTeam, we understand the unique challenges that small businesses and startups face in today's competitive market.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22Exact matchLondon, ON, CanadaHQ recorded Sep 21, 202611-508 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23Exact matchToronto, ON, CanadaHQ recorded Sep 21, 202611-507 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24Exact matchToronto, ON, CanadaHQ recorded Sep 21, 202611-506 contacts →

Exact match

“Jar Solutions is an enterprise offering assistance in setting up and maintaining cost-effective solutions for your business.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25Exact matchToronto, ON, CanadaHQ recorded Sep 21, 202611-506 contacts →

Exact match

“We offer COST SAVINGS and improved EFFICIENCY @$11/hour with a RISK FREE TRIAL.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

Showing 25 of 133 outsource back office services based in Canada

See the full list, filter by size, metro and specialty, and access 346 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Outsource back office services based in Canada at a glance

As of Sep 21, 2026
20.9%Verified-email coverage
12.4Average contacts per company
11-50Median size (employees)
27.8%Largest-city concentration · Toronto
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
55
11-50
48
51-200
18
201-500
6
501-1,000
3
1,001-5,000
2
10001+
1

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 133 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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
Company records associated with Canada whose business descriptions match “outsource back office services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 346 professional contacts with verified work emails across the full matched dataset. 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.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “outsource back office services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many outsource back office services are there based in Canada?

RevenueBase identified 133 company matches for outsource back office services associated with Canada as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

WCD tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most outsource back office services?

Toronto leads with 37 company records, followed by Calgary (12) and Montreal (8).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 346 professional contacts with verified work emails tracked across these 133 companies; direct dials are available where recorded.

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 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.