Company lists · Data refreshed September 2026

Top 23 Alumni associations based in the United Kingdom

RevenueBase identified 103 alumni associations headquartered in the United Kingdom as of September 2026 and tracks 1,126 professional contacts across them, including 196 with verified work emails and 43 with mobile numbers. London is the largest hub.

This list covers alumni associations headquartered in the United Kingdom, 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 7, 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 7, 2026 86% judged on-target in blind review
103Companies
1,126Contacts tracked
196Verified emails
43Mobile numbers
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The 23 largest alumni associations based in the United Kingdom

Ranked by team size
Top 23 of 103 alumni associations based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 7, 2026. RevenueBase Smart Search rates how each company's information relates to alumni associations: 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
1Indirect evidenceChester, United KingdomHQ checked Sep 7, 2026201-50089 contacts →
Source: company website · checked Sep 7, 2026
2Partial evidenceLondon, United KingdomHQ checked Sep 7, 202611-5081 contacts →

“Future First’s believes that alumni can be inspirational role models and help schools do even more for their students.”

Source: company website · checked Sep 7, 2026
3Indirect evidenceLancaster, United KingdomHQ checked Sep 7, 2026201-50055 contacts →

“Your schooldays can be some of the happiest of your life and the friendships made during that time can last a lifetime.”

Source: company website · checked Sep 7, 2026
4Indirect evidenceWakefield, United KingdomHQ checked Sep 7, 202651-20030 contacts →

“Welcome to Old Savilians Online, the online community for former pupils and staff of Queen Elizabeth Grammar School, Wakefield.”

Source: company website · checked Sep 7, 2026
5Partial evidenceOttery St Mary, United KingdomHQ checked Sep 7, 202651-20026 contacts →

“This page exists as a means of reaching out to our alumni, to keep in touch and use their aggregated data to inspire current students.”

Source: company website · checked Sep 7, 2026
6Indirect evidenceEdinburgh, United KingdomHQ checked Sep 7, 202651-20024 contacts →

“The Merchistonian Club, of which former pupils become members on leaving School, is an extremely active one, and provides a facility for Merchistonians to keep in touch, not only…”

Source: company website · checked Sep 7, 2026
7Indirect evidenceLondon, United KingdomHQ checked Sep 7, 202651-20024 contacts →

“Heathcote's ethos is one of success built on inclusion, care and support for all its learners, past, present and future.”

Source: company website · checked Sep 7, 2026
8Indirect evidenceSutton Coldfield, United KingdomHQ checked Sep 7, 2026201-50019 contacts →

“Plantsbrook School aims to develop and support relationships with our ex students and local businesses.”

Source: company website · checked Sep 7, 2026
9Indirect evidenceBirmingham, United KingdomHQ checked Sep 7, 202651-20019 contacts →

“Cardinal Wiseman School aims to develop and support relationships with our ex-students and local businesses.”

Source: company website · checked Sep 7, 2026
10Strong evidenceKimbolton, United KingdomHQ checked Sep 7, 20261-1019 contacts →

“The alumni association for Kimbolton School, Cambridgeshire.”

Source: company website · checked Sep 7, 2026
11Indirect evidenceBristol, United KingdomHQ checked Sep 7, 202611-5018 contacts →

“IDPE is the UK's leading schools’ development membership organisation and a registered charity.”

Source: company website · checked Sep 7, 2026
12Partial evidenceCamberley, United KingdomHQ checked Sep 7, 20261-1014 contacts →

“The Sandhurst Trust is the official charity and alumni community of the the Royal Military Academy Sandhurst.”

Source: company website · checked Sep 7, 2026
13Partial evidenceWindsor, United KingdomHQ checked Sep 7, 202651-20011 contacts →

“Windsor Middle School alumni page.”

Source: company website · checked Sep 7, 2026
14Partial evidenceStevenage, United KingdomHQ checked Sep 7, 202651-2009 contacts →

“The John Henry Newman Catholic School Alumni Network has been created to develop and foster lifelong relationships between the School and its past pupils and staff.”

Source: company website · checked Sep 7, 2026
15Indirect evidenceAberdeen, United KingdomHQ checked Sep 7, 202611-507 contacts →

“ISA-The International School Aberdeen celebrates its 50th Anniversary this Autumn.”

Source: company website · checked Sep 7, 2026
16Indirect evidenceDartford, United KingdomHQ checked Sep 7, 202651-2003 contacts →
Source: company website · checked Sep 7, 2026
17Partial evidenceLondon, United KingdomHQ checked Sep 7, 202611-503 contacts →

“We believe in the limitless power of alumni.”

Source: company website · checked Sep 7, 2026
18Indirect evidenceLondon, United KingdomHQ checked Sep 7, 202611-503 contacts →

“The Wharton School of the University of Pennsylvania, founded in 1881 as the world's first business school, is recognized globally for intellectual leadership in innovation…”

Source: company website · checked Sep 7, 2026
19Partial evidenceWargrave, United KingdomHQ checked Sep 7, 202651-2003 contacts →

“Keep in touch to connect professionally with fellow alumni and to stay involved with the school.”

Source: company website · checked Sep 7, 2026
20Indirect evidenceBedford, United KingdomHQ checked Sep 7, 20261-102 contacts →

“Established in 1891, the Old Bedfordians Club is Bedford School’s Old Boys club with a vibrant community of over members worldwide and a busy calendar of reunions, sports fixtures…”

Source: company website · checked Sep 7, 2026
21Indirect evidenceLondon, United KingdomHQ checked Sep 7, 2026201-5001 contacts →

“St Catherine's British School is a primary/secondary education company based out of 66 LINCOLN'S INN FIELDS, LONDON, United Kingdom.”

Source: company website · checked Sep 7, 2026
22Partial evidenceLondon, United KingdomHQ checked Sep 7, 202611-501 contacts →

“We Are the Old Dovorian Club, the alumni of Dover College.”

Source: company website · checked Sep 7, 2026
23Indirect evidenceTheale, United KingdomHQ checked Sep 7, 202611-501 contacts →

“Theale Green School is an Ofsted rated GOOD school run by the Activate Learning Education Trust.”

Source: company website · checked Sep 7, 2026

Showing 23 of 103 alumni associations based in the United Kingdom

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Alumni associations based in the United Kingdom at a glance

As of Sep 7, 2026
17.4%Verified-email coverage
3.8%Mobile-number coverage
10.9Average contacts per company
51-200Median size (employees)
24.3%Largest-city concentration · London
Sep 7, 2026Page data refreshed

Companies by employee count

1-10
37
11-50
11
51-200
23
201-500
12
501-1,000
8
1,001-5,000
6
5,001-10,000
3
10001+
1

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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 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.
What qualifies
Companies headquartered in the United Kingdom whose own description of what they do matches “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 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 alumni associations, and records with no verified work email. Companies headquartered outside United Kingdom 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, 196 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 7, 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.

Alumni associations by metro

  • Alumni associations in London25

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 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 alumni associations are there based in the United Kingdom?

RevenueBase identified 103 alumni associations headquartered in the United Kingdom 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 Chester, headquartered in Chester, tops this list with the largest team on record.

Which city has the most alumni associations?

London leads with 25 headquartered companies, followed by Cambridge (5) and Birmingham (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 196 verified decision-maker contacts tracked across these 103 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 7, 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.