Company lists · Data refreshed September 2026
Top 25 All-boys high schools based in South Africa
RevenueBase identified 52 all-boys high schools headquartered in South Africa as of September 2026 and tracks 2,739 professional contacts across them, including 1,007 with verified work emails. Johannesburg is the largest hub.
This list covers all-boys high schools headquartered in South Africa, 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.
The 25 largest all-boys high schools based in South Africa
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 394 contacts → | ||||
Partial evidence “St Stithians College is a prominent and transformative South African school – one that inspires excellence and makes a world of difference.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 205 contacts → | ||||
Strong evidence “Situated in the Balgowan valley in the Midlands of KwaZulu-Natal, South Africa, the unique geography of Michaelhouse - a full boarding school for boys and home to a fully…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 183 contacts → | ||||
Partial evidence “St Benedict's is a modern South African school with excellent facilities, built on a 40-acre site in Bedfordview, Gauteng.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 150 contacts → | ||||
Strong evidence “Kearsney College is a leading independent traditional boys' high school, located between Pietermaritzburg and Durban in the Valley of Hills, KwaZulu-Natal, South Africa.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 141 contacts → | ||||
Partial evidence “Kingswood College is one of South Africa’s leading independent schools.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 134 contacts → | ||||
Strong evidence “Bishops is an independent boys’ school in Rondebosch, Cape Town, made up of a Pre-preparatory school, a Preparatory school and the College.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 126 contacts → | ||||
Strong evidence “Clifton, the Independent boys’ school in Durban, is situated in the beautiful suburb of Morningside.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 120 contacts → | ||||
Strong evidence “Please reach us on info@boyshigh.com Pretoria Boys High School is a traditional boys school situated on an 85 acre campus to the south-east of the city centre.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 118 contacts → | ||||
Partial evidence “OUR VISION: St Alban’s College is a learning community of boys, staff and parents.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 99 contacts → | ||||
Strong evidence “Jeppe High School for Boys is Johannesburg’s oldest public school having been established in 1890 in Fairview, Johannesburg.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 90 contacts → | ||||
Strong evidence “Durban High School, a heritage of excellence, is a traditional boys’ high school based in Durban, South Africa.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 78 contacts → | ||||
Indirect evidence “Our proud history, rich in tradition, has established us as a leading South African academic institution.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 77 contacts → | ||||
Strong evidence “Krugersdorp High School was Established in 1903, making the school one of the oldest schools in our Greater Westrand Community.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 65 contacts → | ||||
Strong evidence “Paul Roos Gymnasium (PRG) is a dual-medium boys' high school known for its rich history as well as all-round excellence in academics, sport and culture.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 55 contacts → | ||||
Strong evidence “Fairmont High School began in 1973, when the Provincial Administration of the Cape Province decided on the establishment of the school.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 53 contacts → | ||||
Strong evidence “The Ridge School is a boys-only private institution offering a top-quality education to young boys in the community since 1919.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 51 contacts → | ||||
Strong evidence “Grey High Boys’ Schools strives to provide excellence in academic, sporting and cultural activities.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 47 contacts → | ||||
Strong evidence “Our vision … To remain one of the leading boys' schools in South Africa “the school of choice” Our Mission… Through quality education, WBJS aims to grow confident and contributing…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 46 contacts → | ||||
Strong evidence “Glenwood is the premier boys school in Durban.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 31 contacts → | ||||
Strong evidence “Our school was born on 24 January 1955 in pre-fabricated buildings on the grounds of Andrew Rabie High School.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 29 contacts → | ||||
Strong evidence “Christian Brothers' College Boksburg is a Catholic independent all-boys college from grades to 12.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 13 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 10 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 8 contacts → | ||||
Strong evidence “Dale College is a 163 year old public boys’ school serving the community of eQonce (formerly King William’s Town) in the Eastern Cape.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 7 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 19, 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: all-boys 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 all-boys high schools.
- Partial evidence
- Its own public description names part of all-boys high schools, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name all-boys 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 52 all-boys high schools based in South Africa
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All-boys high schools based in South Africa at a glance
As of Sep 19, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for South Africa, so it is reported there. Company counts and contact totals on this page are exact for South Africa, over 52 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 South Africa 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 South Africa 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, 1,007 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 South Africa?
RevenueBase identified 52 all-boys high schools headquartered in South Africa 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?
ST Stithians College, South Africa, headquartered in Sandton, tops this list with the largest team on record.
Which city has the most all-boys high schools?
Johannesburg leads with 6 headquartered companies, followed by Cape Town (4) and Durban (4).
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 1,007 verified decision-maker contacts tracked across these 52 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.
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