AON UK LIMITED
Company number 00210725 · Monitor this company
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Overview
- Company type
- Private Limited Company
- Incorporated
- 1925-12-29
- Registered office
- The Aon Centre The Leadenhall Building, 122 Leadenhall Street, London, United Kingdom, EC3V 4AN
- Postcode
- EC3V 4AN
- Capital
- 200,000,000 GBP
- Accounts category
- Full
Accounts
- Last made up to
- 2025-12-31
- Next due by
- 2027-09-30
- Financial year end
- 31 December
Confirmation statement
- Last statement dated
- 2026-02-02
- Next due by
- 2027-02-16
Nature of business (SIC)
- 66220 Activities of insurance agents and brokers
Officers 16 current · 43 resigned
Group structure 10 subsidiaries
Controlled by AON UK HOLDINGS LIMITED — since 2016-04-06
-
ACUMEN CREDIT INSURANCE BROKERS LIMITED Dissolved
-
AON ADJUDICATION SERVICES LIMITED Dissolved
-
BANKASSURE INSURANCE SERVICES LIMITED Dissolved
-
CONTRACTSURE LIMITED Dissolved
-
HENDERSON RISK MANAGEMENT LIMITED Dissolved
From persons-with-significant-control filings on the public register.
Public contracts won 53
£431,290,868 total awarded value where published.
Showing the 5 most recent of 53.
Contains public sector information licensed under the Open Government Licence v3.0 (Contracts Finder).
Licensed visa sponsor
Licensed by the Home Office to sponsor worker visas: Global Business Mobility: Senior or Specialist Worker (Worker (A rating)), Skilled Worker (Worker (A rating)).
Matched by registered name to the register of licensed sponsors (Home Office, updated daily) — check the register itself before relying on it. Contains public sector information licensed under the Open Government Licence v3.0.
Modern slavery statement
Registered a modern slavery statement for 2023 (period to 2022-12-31) — 2 years on the registry.
Read the statement summary on the government modern slavery statement registry. Contains public sector information licensed under the Open Government Licence v3.0.
Data protection registration
Registered with the ICO as a data protection fee payer — Z5849308 (Tier 3), registered since 2001.
Information Commissioner's Office register of fee payers, licensed under the Open Government Licence.
Gender pay gap
33.8%
Women's median hourly pay below men's, 2025/26 · in the bottom 10% for parity
Contact details
- Website
- aon.com
- Phone
- 0555555556
Aon is in the business of better decisions.
Previous company names
| Name | Date changed |
|---|---|
| AON RISK MANAGEMENT SERVICES UK LIMITED | 2012-04-03 |
| AON LIMITED | 2012-03-30 |
| AON GROUP LIMITED | 2000-12-29 |
| ALEXANDER HOWDEN GROUP LIMITED | 1997-07-01 |
| ALEXANDER HOWDEN INSURANCE BROKERS LIMITED | 1985-01-01 |
| ALEXANDER HOWDEN & SWANN LIMITED | 1976-12-31 |
| ALEXR HOWDEN & CO LIMITED | 1968-10-01 |
Previous registered addresses 2
| Address | Changed on |
|---|---|
| EGISTERED OFFICE CHANGED ON 10/07/2015 FROM, 8 DEVONSHIRE SQUARE, LONDON, EC2M 4PL | 2015-07-10 |
| DEVONSHIRE SQUARE, LONDON, EC2M 4YJ | 2001-03-06 |
Among its peers
2nd oldest
of 688 similar companies in EC, trading since 1925
Who's looking
10
views of this page in the last 7 days, including 3 from Google.
Property in England & Wales 2 titles
- Freehold
- 1
- Leasehold
- 1
- Most recent registration
- 2008-11-06
- Where
- Oxfordshire (1), Buckinghamshire (1)
| Title number | County | Tenure | Registered | Price paid |
|---|---|---|---|---|
| ON151373 | Oxfordshire | Leasehold | 2008-11-06 | — |
| BM310869 | Buckinghamshire | Freehold | 2006-04-20 | — |
For addresses and the authoritative register entry, use HM Land Registry's official search (£3 per title).
Information produced by HM Land Registry. © Crown copyright 2026. Dataset as at 2026-08.
This company's registered activities are in financial services. If it carries on regulated business, it should appear on the FCA's Financial Services Register — the official record of authorised firms.