Company lists · Data refreshed September 2026

Top 23 All-boys high schools based in Australia

RevenueBase identified 90 all-boys high schools headquartered in Australia as of September 2026 and tracks 8,182 professional contacts across them, including 3,520 with verified work emails. Sydney is the largest hub.

This list covers all-boys high schools headquartered in Australia, 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
90Companies
8,182Contacts tracked
3,520Verified emails
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The 23 largest all-boys high schools based in Australia

Ranked by team size
Top 23 of 90 all-boys high schools based in Australia, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to all-boys high 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceNorth Parramatta, AustraliaHQ checked Sep 19, 2026201-500613 contacts →

Partial evidence

“Established in 1831, The King's School is located on 320 acres in the heart of Australia's largest global city.”

Source: RevenueBase Database · checked Sep 19, 2026
2Indirect evidenceWahroonga, AustraliaHQ checked Sep 19, 2026501-1,000531 contacts →

Indirect evidence

“Established in 1924, we are proud of our innovative approach to education.”

Source: RevenueBase Database · checked Sep 19, 2026
3Partial evidenceSummer Hill, AustraliaHQ checked Sep 19, 2026501-1,000515 contacts →

Partial evidence

“Trinity aims to provide boys with a thoroughly Christian education.”

Source: RevenueBase Database · checked Sep 19, 2026
4Partial evidenceHawthorn, AustraliaHQ checked Sep 19, 2026201-500446 contacts →

Partial evidence

“At Scotch College, we provide a holistic, values-based education that strives to prepare boys for fulfilling, meaningful lives of contribution.”

Source: RevenueBase Database · checked Sep 19, 2026
5Partial evidenceHunters Hill, AustraliaHQ checked Sep 19, 2026201-500439 contacts →

Partial evidence

“St Joseph’s College Hunters Hill has a proud reputation as one of Australia’s leading independent Catholic schools.”

Source: RevenueBase Database · checked Sep 19, 2026
6Strong evidenceBrisbane, AustraliaHQ checked Sep 19, 2026201-500354 contacts →

Strong evidence

“Today Brisbane Grammar School opens its doors to boys from Years 5 to 12, with 100 boarders calling the School home.”

Source: RevenueBase Database · checked Sep 19, 2026
7Indirect evidenceMelbourne, AustraliaHQ checked Sep 19, 2026201-500244 contacts →

Indirect evidence

“Mentone Grammar is the benchmark for outstanding coeducation in bayside Melbourne.”

Source: RevenueBase Database · checked Sep 19, 2026
8Strong evidenceSydney, AustraliaHQ checked Sep 19, 202651-200244 contacts →

Strong evidence

“Sydney Grammar School is an independent secular school for boys located in Sydney, Australia.”

Source: RevenueBase Database · checked Sep 19, 2026
9Strong evidenceKeilor East, AustraliaHQ checked Sep 19, 2026201-500230 contacts →

Strong evidence

“Penleigh and Essendon Grammar is a school for boys and girls with campuses located in Essendon, Moonee Ponds and Keilor East.”

Source: RevenueBase Database · checked Sep 19, 2026
10Partial evidenceCoorparoo, AustraliaHQ checked Sep 19, 202651-200170 contacts →

Partial evidence

“Villanova College is an independent Catholic school in the Augustinian tradition, with a rich history of excellence in character, intellect, and spirit development in young men.”

Source: RevenueBase Database · checked Sep 19, 2026
11Indirect evidenceGold Coast, AustraliaHQ checked Sep 19, 2026201-500169 contacts →

Indirect evidence

“Coomera Anglican College is a co-educational P-12 College with over 1,400 students.”

Source: RevenueBase Database · checked Sep 19, 2026
12Strong evidenceSouth Yarra, AustraliaHQ checked Sep 19, 202651-200157 contacts →

Strong evidence

“Unique in its status as a state-wide provider for boys from Year 9 to 12, Melbourne High School seeks to remain at the forefront of education for boys in Australia.”

Source: RevenueBase Database · checked Sep 19, 2026
13Strong evidenceSouth Brisbane, AustraliaHQ checked Sep 19, 2026201-500153 contacts →

Strong evidence

“St Laurence's College is a Catholic School for boys in the Edmund Rice Tradition.”

Source: RevenueBase Database · checked Sep 19, 2026
14Strong evidenceSouth Brisbane, AustraliaHQ checked Sep 19, 202651-200146 contacts →

Strong evidence

“Since 1921, Brisbane State High School has come to symbolise and exemplify excellence in public school education.”

Source: RevenueBase Database · checked Sep 19, 2026
15Partial evidenceBundoora, AustraliaHQ checked Sep 19, 2026201-500142 contacts →

Partial evidence

“Parade College is a member of the national body of Catholic schools known as Edmund Rice Education Australia (EREA).”

Source: RevenueBase Database · checked Sep 19, 2026
16Indirect evidencePerth, AustraliaHQ checked Sep 19, 202651-200133 contacts →

Indirect evidence

“Mazenod College is set in the picturesque Lesmurdie Hills on 22 acres overlooking Perth city.”

Source: RevenueBase Database · checked Sep 19, 2026
17Partial evidenceBrisbane, AustraliaHQ checked Sep 19, 2026201-500128 contacts →

Partial evidence

“Ambrose Treacy College is a Catholic school in the Edmund Rice tradition and caters for students in Years 4-12.”

Source: RevenueBase Database · checked Sep 19, 2026
18Indirect evidenceEssendon West, AustraliaHQ checked Sep 19, 202651-200121 contacts →

Indirect evidence

“St Bernard’s College is a Catholic secondary college located in Essendon, Melbourne.”

Source: RevenueBase Database · checked Sep 19, 2026
19Strong evidenceBallarat, AustraliaHQ checked Sep 19, 202651-200116 contacts →

Strong evidence

“St Patrick’s College, Ballarat is a Catholic day and boarding school for boys in Years 7-12.”

Source: RevenueBase Database · checked Sep 19, 2026
20Partial evidenceRothwell, AustraliaHQ checked Sep 19, 2026201-500108 contacts →

Partial evidence

“Grace Lutheran College, established 1978, is a community based, Christian, co-educational secondary school based in Rothwell and Caboolture.”

Source: RevenueBase Database · checked Sep 19, 2026
21Strong evidenceMulgrave, AustraliaHQ checked Sep 19, 202651-200104 contacts →

Strong evidence

“Mazenod College, established in 1967, is a Catholic secondary school for boys in Mulgrave, Victoria.”

Source: RevenueBase Database · checked Sep 19, 2026
22Partial evidenceWoodend, AustraliaHQ checked Sep 19, 2026201-50070 contacts →

Partial evidence

“We are a Catholic boys secondary College founded in the tradition of Blessed Edmund Rice proudly serving the Ipswich community since 1892.”

Source: RevenueBase Database · checked Sep 19, 2026
23Partial evidenceTamworth, AustraliaHQ checked Sep 19, 2026201-50068 contacts →

Partial evidence

“Calrossy is a "Diamond" school delivering the best education for every student, of every age.”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 23 of 90 all-boys high schools based in Australia

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All-boys high schools based in Australia at a glance

As of Sep 19, 2026
43.0%Verified-email coverage
90.9Average contacts per company
51-200Median size (employees)
3.3%Largest-city concentration · Sydney
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
8
11-50
9
51-200
45
201-500
24
501-1,000
2
1,001-5,000
1

Email recency for this list is measured worldwide rather than for Australia, so it is reported there. Company counts and contact totals on this page are exact for Australia, over 90 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 all-boys high 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 Australia whose own description of what they do matches “all-boys high 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 all-boys high 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 all-boys high schools, and records with no verified work email. Companies headquartered outside Australia 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, 3,520 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 all-boys high 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 all-boys high schools are there based in Australia?

RevenueBase identified 90 all-boys high schools headquartered in Australia 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?

The King's School, headquartered in North Parramatta, tops this list with the largest team on record.

Which city has the most all-boys high schools?

Sydney leads with 3 headquartered companies, followed by Austins Ferry (2) and Bathurst (2).

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 3,520 verified decision-maker contacts tracked across these 90 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.