Company lists · Data refreshed September 2026
Top 25 Secondary schools based in Australia
RevenueBase identified 399 secondary schools headquartered in Australia as of September 2026 and tracks 10,299 professional contacts across them, including 2,823 with verified work emails. Melbourne is the largest hub.
This list covers secondary 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 21, 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.
The 25 largest secondary schools based in Australia
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 531 contacts → | ||||
Indirect evidence “Established in 1924, we are proud of our innovative approach to education.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 343 contacts → | ||||
Partial 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 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 244 contacts → | ||||
Indirect evidence “Mentone Grammar is the benchmark for outstanding coeducation in bayside Melbourne.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 230 contacts → | ||||
Partial 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 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 153 contacts → | ||||
Partial evidence “St Laurence's College is a Catholic School for boys in the Edmund Rice Tradition.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 146 contacts → | ||||
Partial evidence “Since 1921, Brisbane State High School has come to symbolise and exemplify excellence in public school education.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 145 contacts → | ||||
Partial evidence “The Hutchins School is located approximately five kilometres from the CBD of Hobart, Tasmania’s capital city, and twenty minutes from the Hobart airport.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 120 contacts → | ||||
Partial evidence “Hills Grammar is a truly independent, intentionally co-educational, proudly diverse, and inclusive school located in the Hills District, providing an education for children from…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 117 contacts → | ||||
Indirect evidence “Heathdale Christian College is a thriving Christian learning community serving families across Melbourne's west through campuses in Werribee and Melton.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 108 contacts → | ||||
Partial evidence “Balwyn High School is a state-run high school (years 7–12) in the Melbourne suburb of North Balwyn, in Victoria, Australia.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 95 contacts → | ||||
Partial evidence “Launceston Church Grammar School, is the oldest co-educational school in Australia.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 95 contacts → | ||||
Indirect evidence “At Trinity Lutheran College we want to see our community learn, thrive and succeed.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 90 contacts → | ||||
Partial evidence “Newcastle Grammar School is the pre-eminent co-educational independent school in the Hunter Region for children in Kindergarten to Year 12, where outstanding learning…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 85 contacts → | ||||
Indirect evidence “At Southern Cross Grammar (SCG), we believe education is most powerful when a student is truly known and their potential is unlocked to shape what comes next.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 83 contacts → | ||||
Partial evidence “Brisbane Christian College is a Pre-Prep (Kindergarten) to Year 12 private school based in South Brisbane.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 82 contacts → | ||||
Partial evidence “St Philip’s Christian College is a leading Christian independent school group in the Hunter Region catering for over 3800 students from babies and pre-school through to Year 12.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 82 contacts → | ||||
Partial evidence “St Margaret’s Berwick Grammar is a non-denominational independent school catering for the whole family, providing co-education from the early years to Year 6 and single gender…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 73 contacts → | ||||
Indirect evidence “The Fraser Coast Anglican College is committed to providing "a place to become all that you can be".” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 73 contacts → | ||||
Indirect evidence “John Curtin College of the Arts is a leader in public education.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 68 contacts → | ||||
Partial evidence “Calrossy is a "Diamond" school delivering the best education for every student, of every age.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 68 contacts → | ||||
Indirect evidence “TRANBY COLLEGE is a CC-Year12 education institution based at 90 Arpenteur Drive, Baldivis, Western Australia, Australia.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 68 contacts → | ||||
Partial evidence “Rowville Secondary College officially opened in 1990 with approximately 180 students in years 7 and 8.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 66 contacts → | ||||
Partial evidence “Marist Regional College is an exceptional provider of an excellent secondary Catholic education to the North-West Coast of Tasmania.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 65 contacts → | ||||
Indirect evidence “St Francis Catholic College provides a welcoming and supportive environment offering inclusive educational pathways that are flexible and designed to meet the needs of all…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
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: secondary 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 secondary schools.
- Partial evidence
- Its own public description names part of secondary schools, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name secondary 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 399 secondary schools based in Australia
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Secondary schools based in Australia at a glance
As of Sep 21, 2026Companies by employee count
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 399 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 secondary 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 “secondary 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 secondary 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 secondary 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, 2,823 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 21, 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 secondary 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 secondary schools are there based in Australia?
RevenueBase identified 399 secondary 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?
Knox Grammar School, headquartered in Wahroonga, tops this list with the largest team on record.
Which city has the most secondary schools?
Melbourne leads with 8 headquartered companies, followed by Sydney (6) and Brisbane (5).
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 2,823 verified decision-maker contacts tracked across these 399 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 21, 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.