Company lists · Data refreshed September 2026

Top 25 Independent high schools based in Australia

Name: Independent high schools based in Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 199 companies tracked

RevenueBase identified 199 independent high schools headquartered in Australia as of September 2026 and tracks 11,111 professional contacts across them, including 5,602 with verified work emails. Sydney is the largest hub.

This list covers independent 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 20, 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 20, 2026 86% judged on-target in blind review

199Companies

11,111Contacts tracked

5,602Verified emails

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The 25 largest independent high schools based in Australia

Ranked by team size

Top 25 of 199 independent high schools based in Australia, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to independent 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Caulfield Grammar School	Strong evidence	Melbourne, AustraliaHQ checked Sep 20, 2026	501-1,000	801 contacts →
	Strong evidence “Established in 1881, Caulfield Grammar School is a leading independent co-educational school in Melbourne, Australia.” Source: RevenueBase Database · checked Sep 20, 2026
2	Knox Grammar School	Indirect evidence	Wahroonga, AustraliaHQ checked Sep 20, 2026	501-1,000	531 contacts →
	Indirect evidence “Established in 1924, we are proud of our innovative approach to education.” Source: RevenueBase Database · checked Sep 20, 2026
3	ST Peters Lutheran College	Strong evidence	Indooroopilly, AustraliaHQ checked Sep 20, 2026	501-1,000	427 contacts →
	Strong evidence “St Peters Lutheran College, the largest independent school in Queensland, has a fine tradition of providing Christian co-education for Prep to Year 12 day students and Boarders…” Source: RevenueBase Database · checked Sep 20, 2026
4	Melbourne Grammar School	Strong evidence	Melbourne, AustraliaHQ checked Sep 20, 2026	201-500	343 contacts →
	Strong evidence “Melbourne Grammar School is one of Australia’s leading independent schools with a tradition of excellence extending over more than 160 years.” Source: RevenueBase Database · checked Sep 20, 2026
5	John Paul College	Strong evidence	Daisy Hill, AustraliaHQ checked Sep 20, 2026	501-1,000	341 contacts →
	Strong evidence “John Paul College is one of Queensland’s largest independent Early Learning to Year Twelve co-educational schools.” Source: RevenueBase Database · checked Sep 20, 2026
6	ST Leonard's College	Strong evidence	Brighton East, AustraliaHQ checked Sep 20, 2026	201-500	289 contacts →
	Strong evidence “St Leonard’s College is the leading independent, truly coeducational school from ELC to year 12 in Bayside Melbourne.” Source: RevenueBase Database · checked Sep 20, 2026
7	Matthew Flinders Anglican College	Strong evidence	Buderim, AustraliaHQ checked Sep 20, 2026	201-500	238 contacts →
	Strong evidence “Matthew Flinders Anglican College is one of Queensland's leading independent co-educational Prep - Year 12 schools, offering an education for excellence in learning and life.” Source: RevenueBase Database · checked Sep 20, 2026
8	Flinders Christian Community College	Strong evidence	Tyabb, AustraliaHQ checked Sep 20, 2026	201-500	205 contacts →
	Strong evidence “Flinders Christian Community College is an independent, coeducational, interdenominational Christian School (with an open and inclusive enrolment policy, we do accept students…” Source: RevenueBase Database · checked Sep 20, 2026
9	Sheldon College	Partial evidence	Sheldon, AustraliaHQ checked Sep 20, 2026	201-500	197 contacts →
	Partial evidence “An independent, co-educational, non-denominational College situated in Brisbane’s Bayside.” Source: RevenueBase Database · checked Sep 20, 2026
10	Santa Sabina College	Strong evidence	Strathfield, AustraliaHQ checked Sep 20, 2026	51-200	187 contacts →
	Strong evidence “AN INDEPENDENT CATHOLIC SCHOOL – Co-education from Prep to Year 4, Girls Year 5 - 12 The college offers a vibrant spirit of community which supports connectedness.” Source: RevenueBase Database · checked Sep 20, 2026
11	Sceggs Darlinghurst	Partial evidence	Darlinghurst, AustraliaHQ checked Sep 20, 2026	51-200	187 contacts →
	Partial evidence “SCEGGS is a unique school in the heart of Australia's busiest city, with a small population of 900 students from Kindergarten to Year 12.” Source: RevenueBase Database · checked Sep 20, 2026
12	Sirius College	Strong evidence	Broadmeadows, AustraliaHQ checked Sep 20, 2026	201-500	176 contacts →
	Strong evidence “Sirius College is an independent non-denominational school with over students across six campuses in Victoria.” Source: RevenueBase Database · checked Sep 20, 2026
13	Canberra Girls Grammar School	Partial evidence	Deakin, AustraliaHQ checked Sep 20, 2026	201-500	165 contacts →
	Partial evidence “Discover a 100-year legacy of educational excellence, connection and opportunity at Canberra Girls Grammar School (CGGS).” Source: RevenueBase Database · checked Sep 20, 2026
14	Hillcrest Christian College	Strong evidence	Reedy Creek, AustraliaHQ checked Sep 20, 2026	201-500	164 contacts →
	Strong evidence “Hillcrest Christian College is an independent, co-educational day school with approximately 1,600 students from Prep - Year 12.” Source: RevenueBase Database · checked Sep 20, 2026
15	Amity College	Strong evidence	Prestons, AustraliaHQ checked Sep 20, 2026	201-500	147 contacts →
	Strong evidence “An independent school for K-12 grades that aims for academic excellence and equity for all students at four campuses Auburn K-6, Illawarra K-12, Prestons K-12, and Leppington K-3” Source: RevenueBase Database · checked Sep 20, 2026
16	Malek Fahd Islamic School	Strong evidence	Greenacre, AustraliaHQ checked Sep 20, 2026	201-500	146 contacts →
	Strong evidence “Established in 1989, Malek Fahd Islamic School (MFIS) is an independent co-educational school with over 2,500 students and approximately 260 staff residing across campuses at…” Source: RevenueBase Database · checked Sep 20, 2026
17	Reddam House Sydney	Strong evidence	Sydney, AustraliaHQ checked Sep 20, 2026	201-500	145 contacts →
	Strong evidence “Reddam House Sydney is a leading independent, co-educational, non-denominational school in New South Wales, offering a seamless educational journey from Early Learning to Year 12.” Source: RevenueBase Database · checked Sep 20, 2026
18	Eltham College Australia	Partial evidence	Eltham, AustraliaHQ checked Sep 20, 2026	51-200	142 contacts →
	Partial evidence “ELTHAM is a school unlike any other.” Source: RevenueBase Database · checked Sep 20, 2026
19	A.B. Paterson College	Indirect evidence	Arundel, AustraliaHQ checked Sep 20, 2026	51-200	129 contacts →
	Indirect evidence “Developing young men and women of character – leaders now and for the future.” Source: RevenueBase Database · checked Sep 20, 2026
20	Indie School	Strong evidence	Wodonga, AustraliaHQ checked Sep 20, 2026	501-1,000	129 contacts →
	Strong evidence “Indie School is an independent, alternative secondary school for young people in Years 9 to 12 who are looking for a different way to learn.” Source: RevenueBase Database · checked Sep 20, 2026
21	Donvale Christian College	Partial evidence	Donvale, AustraliaHQ checked Sep 20, 2026	201-500	125 contacts →
	Partial evidence “Donvale Christian College is a non-denominational and co-educational school located in the outer eastern suburbs of Melbourne.” Source: RevenueBase Database · checked Sep 20, 2026
22	Trinity College South Australia	Indirect evidence	Evanston South, AustraliaHQ checked Sep 20, 2026	501-1,000	122 contacts →
	Indirect evidence “Trinity College is a co-educational College of excellence, open to all in a disciplined, caring Christian environment.” Source: RevenueBase Database · checked Sep 20, 2026
23	Townsville Grammar School	Strong evidence	Townsville, AustraliaHQ checked Sep 20, 2026	201-500	120 contacts →
	Strong evidence “Townsville Grammar School is an independent, co-educational, non-denominational school - one of eight Grammar schools in Queensland.” Source: RevenueBase Database · checked Sep 20, 2026
24	Ormiston College	Indirect evidence	Ormiston, AustraliaHQ checked Sep 20, 2026	51-200	116 contacts →
	Indirect evidence “Ormiston College has an outstanding reputation for providing its students with quality private education.” Source: RevenueBase Database · checked Sep 20, 2026
25	The Illawarra Grammar School	Strong evidence	Wollongong, AustraliaHQ checked Sep 20, 2026	51-200	113 contacts →
	Strong evidence “The Illawarra Grammar School was founded in 1959 and is the leading independent school in the Illawarra.” Source: RevenueBase Database · checked Sep 20, 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: independent high 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 independent high schools.
Partial evidence: Its own public description names part of independent high schools, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name independent high 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 199 independent high schools based in Australia

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Independent high schools based in Australia at a glance

As of Sep 20, 2026

50.4%Verified-email coverage

55.8Average contacts per company

51-200Median size (employees)

2.5%Largest-city concentration · Sydney

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 199 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 independent 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 “independent 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 independent 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 independent 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, 5,602 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 20, 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 independent 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 independent high schools are there based in Australia?

RevenueBase identified 199 independent 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?

Caulfield Grammar School, headquartered in Melbourne, tops this list with the largest team on record.

Which city has the most independent high schools?

Sydney leads with 5 headquartered companies, followed by Adelaide (3) and Dural (3).

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 5,602 verified decision-maker contacts tracked across these 199 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 20, 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.