Company lists · Data refreshed November 2026

Top 25 Catholic high schools based in Canada

RevenueBase identified 444 company matches for catholic high schools associated with Canada as of November 2026 and tracks 22,900 professional contacts across them, including 10,279 with verified work emails. Toronto is the largest hub.

This list covers company matches for catholic high schools 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 November 6, 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 Nov 6, 2026 How this list was built
444Companies
22,900Contacts tracked
10,279Verified emails
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The 25 largest catholic high schools based in Canada

Ranked by team size
Top 25 of 444 company matches for catholic high schools based in Canada, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchToronto, ON, CanadaHQ recorded Nov 6, 202610001+5,843 contacts →

Exact match

“The Toronto Catholic District School Board (TCDSB) is one of the largest school boards in Canada – serving more than students in more than 195 Catholic schools in the city of…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchCalgary, AB, CanadaHQ recorded Nov 6, 20265,001-10,0002,558 contacts →

Exact match

“We educate and empower students from kindergarten to Grade 12 through our mission of Living and Learning in our Catholic Faith so that students, centred in Christ, realize their…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchGloucester, ON, CanadaHQ recorded Nov 6, 20261,001-5,0001,148 contacts →

Exact match

“Le Conseil des écoles catholiques du Centre-Est (CECCE) est le plus grand réseau canadien d’écoles de langue française à l’extérieur du Québec, avec plus de 32 élèves fréquentant…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchOshawa, ON, CanadaHQ recorded Nov 6, 20261,001-5,0001,128 contacts →

Exact match

“The Durham Catholic District School Board shares a sense of community among families, educators and parishes and is committed to integrating the teachings of the Gospel with…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchWindsor, ON, CanadaHQ recorded Nov 6, 20261,001-5,0001,029 contacts →

Exact match

“MISSION STATEMENT In keeping with the virtues of our Catholic faith, we are called to know every student, to inspire them to follow the example of Jesus, and empower them with the…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchHamilton, ON, CanadaHQ recorded Nov 6, 20261,001-5,000722 contacts →

Exact match

“Over 160 years of extraordinary dedication to the development of children Since 1855, the Hamilton-Wentworth Catholic District School Board has built a tradition of excellence…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchBarrie, ON, CanadaHQ recorded Nov 6, 20261,001-5,000707 contacts →

Exact match

“With 53 schools, over students and more than 4,500 employees, the Simcoe Muskoka Catholic District School Board (SMCDSB) is an education community bound together by our beliefs.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchWallaceburg, ON, CanadaHQ recorded Nov 6, 20261,001-5,000571 contacts →

Exact match

“The St.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchPeterborough, ON, CanadaHQ recorded Nov 6, 20261,001-5,000452 contacts →

Exact match

“At Peterborough Victoria Northumberland and Clarington (PVNC) Catholic District School Board, our Vision is to create a culture of faith, hope and love to ensure equity and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchEdmonton, AB, CanadaHQ recorded Nov 6, 20265,001-10,000432 contacts →

Exact match

“People often ask "Why Catholic education?”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchKemptville, ON, CanadaHQ recorded Nov 6, 20261,001-5,000388 contacts →

Exact match

“The Catholic District School Board of Eastern Ontario offers quality Catholic education programs to students in Eastern Ontario.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchSudbury, ON, CanadaHQ recorded Nov 6, 2026501-1,000343 contacts →

Exact match

“The Sudbury Catholic District School Board (SCDSB) is located in the heart of Northern Ontario and proudly serves students from Kindergarten to Grade 12 across Greater Sudbury and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchSherwood Park, AB, CanadaHQ recorded Nov 6, 20261,001-5,000287 contacts →

Exact match

“We are a Catholic community committed to developing educational opportunities in the context of Gospel values, where students' gifts and talents are celebrated and nurtured…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchToronto, CanadaHQ recorded Nov 6, 202651-200271 contacts →

Exact match

“For 130 years, Havergal has provided young women with an exceptional education in an environment that encourages both inquiry and curiosity, and celebrates community.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchHamilton, ON, CanadaHQ recorded Nov 6, 2026201-500232 contacts →

Exact match

“We are more than just a school; we are a community.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchVancouver, BC, CanadaHQ recorded Nov 6, 202651-200228 contacts →

Exact match

“Inspiring girls to discover their personal excellence.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchThunder Bay, ON, CanadaHQ recorded Nov 6, 20261,001-5,000227 contacts →

Exact match

“Christian Living Through Learning The Thunder Bay Catholic District School Board is committed to providing quality education which combines academic excellence with a concern for…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchHanover, ON, CanadaHQ recorded Nov 6, 2026501-1,000207 contacts →

Exact match

“Committed to a vibrant Catholic education, we ensure quality learning experiences through community partnerships that nurture each student in body, mind and spirit and embrace the…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchSault Ste. Marie, ON, CanadaHQ recorded Nov 6, 20261,001-5,000169 contacts →

Exact match

“Rooted in Jesus Christ, we are a Catholic learning community called and committed to develop the full potential of each child and to nurture a personal relationship with Jesus…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchRegina, SK, CanadaHQ recorded Nov 6, 20261,001-5,000148 contacts →

Exact match

“Why RCSD?”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchLondon, ON, CanadaHQ recorded Nov 6, 2026201-500142 contacts →

Exact match

“King's University College is a Catholic educational institution affiliated with The University of Western Ontario (Western).”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchWinnipeg, MB, CanadaHQ recorded Nov 6, 202651-200133 contacts →

Exact match

“Central to the mission of St.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchLa Prairie, QC, CanadaHQ recorded Nov 6, 202651-200122 contacts →

Exact match

“Propriété des Frères de l'Instruction chrétienne, le Collège Jean de la Mennais est une institution privée mixte qui offre le cours secondaire complet et le troisième cycle du…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchToronto, ON, CanadaHQ recorded Nov 6, 202651-200120 contacts →

Exact match

“Greenwood is built on a different school of thought.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchMontréal, QC, CanadaHQ recorded Nov 6, 202651-200103 contacts →

Exact match

“Le Collège Jean-Eudes est une école secondaire privée située à Montréal, fondé en 1953 par des pères Eudistes.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 444 catholic high schools based in Canada

See the full list, filter by size, metro and specialty, and access 10,279 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Catholic high schools based in Canada at a glance

As of Nov 6, 2026
44.9%Verified-email coverage
51.6Average contacts per company
11-50Median size (employees)
6.1%Largest-city concentration · Toronto
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
163
11-50
117
51-200
104
201-500
11
501-1,000
9
1,001-5,000
22
5,001-10,000
2
10001+
2

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 444 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 “catholic high schools” 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 10,279 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 November 6, 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.

Catholic high schools by metro

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 “catholic high schools”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many catholic high schools are there based in Canada?

RevenueBase identified 444 company matches for catholic high schools associated with Canada as of November 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?

Toronto Catholic District School Board tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most catholic high schools?

Toronto leads with 27 company records, followed by Mississauga (15) and Ottawa (14).

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 10,279 professional contacts with verified work emails tracked across these 444 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 November 6, 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.