Aon: Leader in human resources, reinsurance & risk United Kingdom
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Find names, addresses, telephone and fax numbers for your local Aon offices. Use the Find offices worldwide search tool to the right to select your country and city.

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Contact Aon directly by email to request more information about a product or service. Expand the Request more information box to the right, and fill out the form. An Aon UK representative will contact you.

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Our global headquarters address

The Aon Centre
The Leadenhall Building
122 Leadenhall Street
tel: +44 (0)20 7623 5500
fax: +44 (0)20 7621 1511


Aon takes customers’ complaints very seriously and aims to ensure that complaints are handled fairly, effectively and promptly and are resolved at the earliest possible opportunity. In the event that you are unhappy with our service please register a complaint with Aon using the contact details contained within your policy documentation:

Copies of our internal complaint handling procedures are available on request.
If you cannot settle your complaint with us, you may be entitled to refer it to the Financial Ombudsman Service. Visit for further details.


Last updated 31 July 2015

Aon UK Limited is authorised and regulated by the Financial Conduct Authority. FP310451

Aon Hewitt Limited, Aon Consulting Limited and Hewitt Risk Management Services Limited are authorised and regulated by the Financial Conduct Authority.

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