Company lists · Data refreshed September 2026

Top 25 Catholic organizations worldwide

RevenueBase identified 6,689 catholic organizations worldwide as of September 2026 and tracks 229,204 professional contacts across them, including 66,130 with verified work emails and 0 with mobile numbers. The United States is the largest market and Chicago the largest hub.

This list covers catholic organizations worldwide, 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. Country and city lists for catholic organizations follow the table.

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
6,689Companies
229,204Contacts tracked
66,130Verified emails
0Mobile numbers
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The 25 largest catholic organizations worldwide

Ranked by team size
Top 25 of 6,689 catholic organizations worldwide, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to catholic organizations: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceSt. Louis, MO, United StatesHQ checked Sep 19, 202610001+32,500 contacts →

Indirect evidence

“Answering God's call to bring health, healing and hope to all.”

Source: RevenueBase Database · checked Sep 19, 2026
2Indirect evidenceChicago, IL, United StatesHQ checked Sep 19, 202610001+9,730 contacts →

Indirect evidence

“Inspired by faith.”

Source: RevenueBase Database · checked Sep 19, 2026
3Strong evidenceToronto, ON, CanadaHQ checked Sep 19, 202610001+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
4Strong evidencePerth, AustraliaHQ checked Sep 19, 202610001+4,136 contacts →

Strong evidence

“St John of God Health Care is a leading Catholic not-for-profit provider of high-quality health care and community services in Australia and New Zealand.”

Source: RevenueBase Database · checked Sep 19, 2026
5Indirect evidenceSydney, AustraliaHQ checked Sep 19, 20265,001-10,0003,591 contacts →

Indirect evidence

“Uniting NSW.ACT contributes to the work of the Uniting Church in NSW and the ACT, through social justice advocacy, community services and spiritual care.”

Source: RevenueBase Database · checked Sep 19, 2026
6Indirect evidenceLondon, United KingdomHQ checked Sep 19, 202610001+3,311 contacts →

Indirect evidence

“We're a Christian presence in every community.”

Source: RevenueBase Database · checked Sep 19, 2026
7Strong evidenceAlexandria, VA, United StatesHQ checked Sep 19, 2026n/a2,921 contacts →

Strong evidence

Catholic Charities USA (CCUSA) is the national membership office for Catholic Charities agencies nationwide, providing help and creating hope for millions of people a year…”

Source: RevenueBase Database · checked Sep 19, 2026
8Indirect evidenceSan Pedro, MexicoHQ checked Sep 19, 20265,001-10,0002,687 contacts →

Indirect evidence

“At CHRISTUS MUGUERZA we provide a comprehensive healing experience that puts the needs of each person first.”

Source: RevenueBase Database · checked Sep 19, 2026
9Strong evidenceSydney, AustraliaHQ checked Sep 19, 202610001+2,661 contacts →

Strong evidence

“Founded in 1885 by the Sisters of the Little Company of Mary, Calvary is a charitable, not-for-profit Catholic health and aged care organisation.”

Source: RevenueBase Database · checked Sep 19, 2026
10Strong evidenceSilver Spring, MD, United StatesHQ checked Sep 19, 20261,001-5,0002,653 contacts →

Strong evidence

“Holy Cross Health is a Catholic, not-for-profit health system based in Montgomery County, Md, that serves more than patients each year through a full range of inpatient…”

Source: RevenueBase Database · checked Sep 19, 2026
11Strong evidenceBoise, ID, United StatesHQ checked Sep 19, 20261,001-5,0002,591 contacts →

Strong evidence

“Saint Alphonsus is a four-hospital regional, faith-based Catholic ministry with more than colleagues and providers serving more than people in Idaho and Oregon, with outreach…”

Source: RevenueBase Database · checked Sep 19, 2026
12Indirect evidenceCuritiba, BrazilHQ checked Sep 19, 202610001+2,361 contacts →

Indirect evidence

“Somos um grupo com espírito de família, que trabalha para impactar a vida de quem mais precisa, com qualidade, relevância e sinergia entre cada uma de nossas marcas.”

Source: RevenueBase Database · checked Sep 19, 2026
13Strong evidenceFort Lauderdale, FL, United StatesHQ checked Sep 19, 20261,001-5,0001,599 contacts →

Strong evidence

“Founded in 1955 upon Catholic teachings that remain true to our organization today.”

Source: RevenueBase Database · checked Sep 19, 2026
14Strong evidenceChicago, IL, United StatesHQ checked Sep 19, 202610001+1,536 contacts →

Strong evidence

“The Archdiocese of Chicago, the third largest archdiocese of the Roman Catholic Church in the United States, serves more than 2.2 million Catholics in 221 parishes.”

Source: RevenueBase Database · checked Sep 19, 2026
15Strong evidenceEdmonton, AB, CanadaHQ checked Sep 19, 202610001+1,490 contacts →

Strong evidence

“On October 7, 2008, 16 Catholic health care facilities across Alberta came together under a single board and administration.”

Source: RevenueBase Database · checked Sep 19, 2026
16Strong evidenceParis, FranceHQ checked Sep 19, 2026501-1,0001,459 contacts →

Strong evidence

“Association loi 1901 à but non lucratif, reconnue d'utilité publique depuis 1962, le Secours Catholique-Caritas France compte plus de 68 200 bénévoles et 935 salariés qui agissent…”

Source: RevenueBase Database · checked Sep 19, 2026
17Strong evidenceOshawa, ON, CanadaHQ checked Sep 19, 20261,001-5,0001,120 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
18Strong evidenceWindsor, ON, CanadaHQ checked Sep 19, 20261,001-5,000990 contacts →

Strong 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
19Indirect evidenceWelland, CanadaHQ checked Sep 19, 20261,001-5,000957 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
20Strong evidencePhiladelphia, PA, United StatesHQ checked Sep 19, 202610001+945 contacts →

Strong evidence

“We, the faithful of the Roman Catholic Church in Philadelphia in communion with our Holy Father, shepherd of the universal Church, and our Archbishop, shepherd of the Church in…”

Source: RevenueBase Database · checked Sep 19, 2026
21Strong evidenceChicago, IL, United StatesHQ checked Sep 19, 20261,001-5,000944 contacts →

Strong evidence

Catholic Charities of the Archdiocese of Chicago was founded more than a century ago to meet human need.”

Source: RevenueBase Database · checked Sep 19, 2026
22Indirect evidenceKöln, GermanyHQ checked Sep 19, 202610001+884 contacts →

Indirect evidence

“Wir Malteser sind eine internationale katholische Hilfsorganisation.”

Source: RevenueBase Database · checked Sep 19, 2026
23Indirect evidenceNew York, United StatesHQ checked Sep 19, 20261,001-5,000863 contacts →

Indirect evidence

“We are a large non-profit organization with a wide variety of people, cultures and ministries.”

Source: RevenueBase Database · checked Sep 19, 2026
24Indirect evidenceSão Paulo, BrazilHQ checked Sep 19, 2026501-1,000838 contacts →

Indirect evidence

“Trabalhar na Igreja significa que você será parte de uma equipe na qual pessoas diferentes compartilham o amor pelo evangelho de Jesus Cristo.”

Source: RevenueBase Database · checked Sep 19, 2026
25Strong evidenceEdmonton, AB, CanadaHQ checked Sep 19, 20265,001-10,000792 contacts →

Strong evidence

“People often ask "Why Catholic education?”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 25 of 6,689 catholic organizations worldwide

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Catholic organizations worldwide at a glance

As of Sep 19, 2026
28.9%Verified-email coverage
34.3Average contacts per company
11-50Median size (employees)
1.3%Largest-city concentration · Chicago
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
3,058
11-50
1,850
51-200
989
201-500
242
501-1,000
138
1,001-5,000
164
5,001-10,000
31
10001+
68

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 organizations, 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.
Coverage
16 countries, largest first: the United States, Germany, Brazil, the United Kingdom, France, Australia, Spain, Canada, Italy, Chile and 6 more. Country and city lists for catholic organizations are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “catholic organizations”. 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 organizations), 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 organizations, and records with no verified work email.
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, 66,130 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.

Catholic organizations by location

27 lists · largest first

Every Catholic organizations list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 organizations, 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 organizations are there worldwide?

RevenueBase identified 6,689 catholic organizations worldwide 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?

Ascension, headquartered in St. Louis, tops this list with the largest team on record.

Which country has the most catholic organizations?

The United States leads with 3,792 companies, followed by Germany (480) and Brazil (468). Every catholic organizations list by country and city is linked on this page.

Which city has the most catholic organizations?

Chicago leads with 88 headquartered companies, followed by New York (88) and Madrid (79).

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 66,130 verified decision-maker contacts tracked across these 6,689 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.