Company lists · Data refreshed September 2026

Top 25 Catholic schools based in Canada

Name: Catholic schools based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 171 companies tracked

RevenueBase identified 171 catholic schools headquartered in Canada as of September 2026 and tracks 24,049 professional contacts across them, including 12,008 with verified work emails. Toronto is the largest hub.

This list covers catholic schools 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

171Companies

24,049Contacts tracked

12,008Verified emails

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The 25 largest catholic schools based in Canada

Ranked by team size

Top 25 of 171 catholic schools 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 catholic schools: 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	Toronto Catholic District School Board	Strong evidence	Toronto, ON, CanadaHQ checked Sep 19, 2026	10001+	5,730 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
2	Calgary Catholic School District	Partial evidence	Calgary, AB, CanadaHQ checked Sep 19, 2026	5,001-10,000	2,512 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
3	Waterloo Catholic District School Board	Strong evidence	Kitchener, ON, CanadaHQ checked Sep 19, 2026	1,001-5,000	1,476 contacts →
	Strong evidence “The Waterloo Catholic District School Board operates in Waterloo Region's 3 municipalities and 4 townships.” Source: RevenueBase Database · checked Sep 19, 2026
4	London District Catholic School Board	Strong evidence	London, ON, CanadaHQ checked Sep 19, 2026	1,001-5,000	1,223 contacts →
	Strong evidence “The London District Catholic school system has approximately students in 44 elementary and 9 secondary schools, which provide a full range of education experiences from Junior…” Source: RevenueBase Database · checked Sep 19, 2026
5	Durham Catholic District School Board	Strong evidence	Oshawa, ON, CanadaHQ checked Sep 19, 2026	1,001-5,000	1,120 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
6	Wecdsb	Partial evidence	Windsor, ON, CanadaHQ checked Sep 19, 2026	1,001-5,000	990 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
7	Niagara Catholic District School Board	Indirect evidence	Welland, CanadaHQ checked Sep 19, 2026	1,001-5,000	957 contacts →
	Indirect evidence “We're honoured to be recognized as one of Canada's Best Employers 2025 by Forbes.” Source: RevenueBase Database · checked Sep 19, 2026
8	Greater Saskatoon Catholic Schools	Strong evidence	Saskatoon, SK, CanadaHQ checked Sep 19, 2026	1,001-5,000	792 contacts →
	Strong evidence “With over 2,300 staff members serving over students, Greater Saskatoon Catholic Schools is Saskatchewan’s largest Catholic school division.” Source: RevenueBase Database · checked Sep 19, 2026
9	Edmonton Catholic Schools	Partial evidence	Edmonton, AB, CanadaHQ checked Sep 19, 2026	5,001-10,000	792 contacts →
	Partial evidence “People often ask "Why Catholic education?” Source: RevenueBase Database · checked Sep 19, 2026
10	York Catholic District School Board	Strong evidence	Aurora, ON, CanadaHQ checked Sep 19, 2026	5,001-10,000	695 contacts →
	Strong evidence “Serving one of the fastest growing areas in North America, The York Catholic District School Board (YCDSB) operates in the Regional Municipality of York, located in the Greater…” Source: RevenueBase Database · checked Sep 19, 2026
11	Hamilton-Wentworth Catholic District School Board	Strong evidence	Hamilton, ON, CanadaHQ checked Sep 19, 2026	1,001-5,000	680 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
12	Simcoe Muskoka Catholic District School Board	Strong evidence	Barrie, ON, CanadaHQ checked Sep 19, 2026	1,001-5,000	641 contacts →
	Strong evidence “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.” Source: RevenueBase Database · checked Sep 19, 2026
13	Peterborough Victoria Northumberland And Clarington Catholic District School Board	Strong evidence	Peterborough, ON, CanadaHQ checked Sep 19, 2026	1,001-5,000	562 contacts →
	Strong evidence “At Peterborough Victoria Northumberland and Clarington (PVNC) Catholic District School Board, our Vision is rooted in community, formed in faith, ready to change the world.” Source: RevenueBase Database · checked Sep 19, 2026
14	St. Clair Catholic District School Board	Indirect evidence	Wallaceburg, ON, CanadaHQ checked Sep 19, 2026	1,001-5,000	557 contacts →
	Indirect evidence “The St.” Source: RevenueBase Database · checked Sep 19, 2026
15	Catholic District School Board Of Eastern Ontario	Strong evidence	Kemptville, ON, CanadaHQ checked Sep 19, 2026	1,001-5,000	362 contacts →
	Strong evidence “The Catholic District School Board of Eastern Ontario offers quality Catholic education programs to students in Eastern Ontario.” Source: RevenueBase Database · checked Sep 19, 2026
16	Sudbury Catholic District School Board	Strong evidence	Sudbury, ON, CanadaHQ checked Sep 19, 2026	501-1,000	337 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
17	ELK Island Catholic Schools	Partial evidence	Sherwood Park, AB, CanadaHQ checked Sep 19, 2026	1,001-5,000	279 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
18	RED Deer Catholic Regional Schools	Partial evidence	Red Deer, AB, CanadaHQ checked Sep 19, 2026	501-1,000	272 contacts →
	Partial evidence “We are a publicly funded school Division with an elected Board of Trustees and governed by the Education Act.” Source: RevenueBase Database · checked Sep 19, 2026
19	Thunder BAY Catholic District School Board	Strong evidence	Thunder Bay, ON, CanadaHQ checked Sep 19, 2026	1,001-5,000	220 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
20	Bruce-Grey Catholic District School Board	Partial evidence	Hanover, ON, CanadaHQ checked Sep 19, 2026	501-1,000	205 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
21	Cscmonavenir	Partial evidence	Toronto, ON, CanadaHQ checked Sep 19, 2026	10001+	168 contacts →
	Partial evidence “Conseil scolaire catholique mon-avenir.ca” Source: RevenueBase Database · checked Sep 19, 2026
22	Huron-Superior Catholic District School Board	Partial evidence	Sault Ste. Marie, ON, CanadaHQ checked Sep 19, 2026	1,001-5,000	151 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
23	Northeastern Catholic District School Board	Strong evidence	Timmins, ON, CanadaHQ checked Sep 19, 2026	51-200	138 contacts →
	Strong evidence “The Northeastern Catholic District School Board is very proud of all its 14 schools, stretching from Moosonee in the north to New Liskeard in the south.” Source: RevenueBase Database · checked Sep 19, 2026
24	Regina Catholic School Division	Indirect evidence	Regina, SK, CanadaHQ checked Sep 19, 2026	1,001-5,000	124 contacts →
	Indirect evidence “Why RCSD?” Source: RevenueBase Database · checked Sep 19, 2026
25	Buffalo Trail Public Schools	Partial evidence	Wainwright, AB, CanadaHQ checked Sep 19, 2026	n/a	88 contacts →
	Partial evidence “Buffalo Trail Public Schools is a Primary/Secondary company located in 1041 10a St, Wainwright, AB, Canada.” 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: catholic schools. 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 catholic schools.
Partial evidence: Its own public description names part of catholic schools, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name catholic schools. 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 171 catholic schools based in Canada

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Catholic schools based in Canada at a glance

As of Sep 19, 2026

49.9%Verified-email coverage

140.6Average contacts per company

11-50Median size (employees)

5.3%Largest-city concentration · Toronto

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 171 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 catholic schools, 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 “catholic schools”. 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 catholic schools), 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 catholic schools, 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, 12,008 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.

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 catholic schools, 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 catholic schools are there based in Canada?

RevenueBase identified 171 catholic schools 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?

Toronto Catholic District School Board, headquartered in Toronto, tops this list with the largest team on record.

Which city has the most catholic schools?

Toronto leads with 9 headquartered companies, followed by Mississauga (8) and Ottawa (7).

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 12,008 verified decision-maker contacts tracked across these 171 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.