Company lists · Data refreshed September 2026
Top 25 Boarding school alumni associations worldwide
RevenueBase identified 589 boarding school alumni associations worldwide as of September 2026 and tracks 8,017 professional contacts across them, including 2,023 with verified work emails. The United States is the largest market and London the largest hub.
This list covers boarding school alumni associations 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 boarding school alumni associations 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.
The 25 largest boarding school alumni associations worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 339 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 329 contacts → | ||||
Partial evidence “Shrewsbury School was founded by Edward VI by Royal Charter in 1552, and it was identified as one of the ‘Great’ public schools by the Clarendon Commission 1868.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 325 contacts → | ||||
Partial evidence “Buckingham Browne & Nichols School, often referred to as BB & N, is an independent co-educational day school in Cambridge, Massachusetts, educating students from pre-kindergarten…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 245 contacts → | ||||
Partial evidence “Early innovators in education, Mary Institute and Saint Louis Country Day School combined their rich histories in 1992.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 227 contacts → | ||||
Partial evidence “Founded in 1867, Wellington College is a progressive school for 21st-century boys (with a current roll of 1780) which values belonging and is connected to the past.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 224 contacts → | ||||
Partial evidence “Alleyn's is one of the country’s leading HMC co-educational day schools, committed to achieving academic excellence within an ethos of strong pastoral care and a vibrant…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 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. | |||||
| 8 | 180 contacts → | ||||
Partial evidence “We are a co-educational, university preparatory school for grades 9-12.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 176 contacts → | ||||
Partial evidence “The Stowe Group comprises of Swanbourne House School, Winchester House School and Stowe School.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 141 contacts → | ||||
Partial evidence “The John Cooper School is a private, independent, college preparatory, nonsectarian, nonprofit, coeducational day school for grades PK through 12 in The Woodlands, Texas.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 109 contacts → | ||||
Indirect evidence “Collège, lycée, classes préparatoires aux grandes écoles : le Lycée Hoche de Versailles forme les étudiants depuis 1803.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 108 contacts → | ||||
Strong evidence “Blundell’s School is a co-educational independent school for full, weekly and flexi boarding and day pupils from ages 11 to 18.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 99 contacts → | ||||
Partial 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. | |||||
| 15 | 98 contacts → | ||||
Strong evidence “The Boarding Schools' Association (BSA) champions boarding and promotes boarding excellence.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 96 contacts → | ||||
Indirect evidence “Royal College is widely known as the premier educational institution in the island.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 94 contacts → | ||||
Partial evidence “Wilmslow High School is a comprehensive secondary school educating 11-18 year olds.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 94 contacts → | ||||
Partial evidence “RGS Worcester is an academically selective Independent day School that can trace its origins to 685 making it the sixth oldest school in the world.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 91 contacts → | ||||
Partial evidence “Quick Facts Founded in 1921 as an Episcopal Church School, Diocese of Virginia Coed, college-prep, grades 9-12, 100% four-year college placement 125-acre campus located on the…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 91 contacts → | ||||
Indirect evidence “Winstanley College is an award winning sixth form college for 16-19 year old students based in Wigan.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 89 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 82 contacts → | ||||
Strong evidence “The official Alumni for Bexleyheath Academy which was formerly tBexleyheath School.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 81 contacts → | ||||
Partial evidence “Alumni Page The mission of Le Lycée Français de Los Angeles is to promote interaction between current and former students.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 78 contacts → | ||||
Strong evidence “The Ohio State University Alumni Association counts as its members more than half a million alumni living worldwide.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 73 contacts → | ||||
Partial evidence “Ernest Bevin Academy is an all boys community school for 11-16 with a co-educational Sixth Form in Tooting, SW London.” 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: boarding school alumni associations. 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 boarding school alumni associations.
- Partial evidence
- Its own public description names part of boarding school alumni associations, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name boarding school alumni associations. 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 589 boarding school alumni associations worldwide
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Boarding school alumni associations worldwide at a glance
As of Sep 19, 2026Companies by employee count
Email recency is reported on each country list linked below.
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 boarding school alumni associations, 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
- Every country. Country and city lists for boarding school alumni associations are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “boarding school alumni associations”. 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 boarding school alumni associations), 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 boarding school alumni associations, 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, 2,023 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.
Boarding school alumni associations by location
2 lists · largest firstEvery Boarding school alumni associations list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
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 boarding school alumni associations, 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 boarding school alumni associations are there worldwide?
RevenueBase identified 589 boarding school alumni associations 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?
Loyola High School Of LOS Angeles, headquartered in Los Angeles, tops this list with the largest team on record.
Which country has the most boarding school alumni associations?
The United States leads with 103 companies, followed by the United Kingdom (76). Every boarding school alumni associations list by country and city is linked on this page.
Which city has the most boarding school alumni associations?
London leads with 13 headquartered companies, followed by Istanbul (11) and Paris (11).
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 2,023 verified decision-maker contacts tracked across these 589 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.