Aon Overview

  • Service
  • Financing Advisory

  • Year Founded
  • 1979

Year Founded

  • Employees
  • 79,704

Employees

  • Serviced Companies
  • 67

  • Serviced Deals
  • 60

  • Serviced Investors
  • 108

Aon General Information

Description

Founded in 1979, Aon is a financial advisory firm headquartered in London, United Kingdom. The firm is a global provider of risk management, insurance, reinsurance brokerage, and human resources solutions and outsourcing services. The firm caters to a large spectrum of industries which include aerospace and aviation, automotive, construction services, energy, mining, entertainment, financial institutions, forestry, healthcare, higher education, marine, pharmaceutical, power, rail, real estate, media, retail, technology, telecommunications, and transportation and logistics.

Contact Information

Website
www.aon.com
Formerly Known As
Ryan Insurance Group
Year Founded
1979
Service Provider Type
Financing Advisory
Corporate Office
  • The Aon Centre, The Leadenhall Building
  • 122 Leadenhall Street
  • London EC3V 4AN
  • England, United Kingdom

Aon Services to Companies

Service on a Deal (60)

Aon has provided services on 60 deals. It last acted as a general advisor to Kee Safety on a made for . The deal was made in 2025.

Company Name Service Provided Deal Date Deal Type Deal Amount
Kee Safety Advisor: General Mar 2025
Aster DM Healthcare Advisor: General Nov 2024
GreenGo (Italy) Advisor: General Oct 2024
G+E GETEC Holding Advisor: General Aug 2024
Vegetarian Express Advisor: General Feb 2024
Gridserve Advisor: General Jul 2023
Yield Engineering Systems Jun 2023
Hultec Advisor: General Mar 2023
SOS Manufacturing Advisor: General Mar 2023
Zenobe Energy Advisor: General Feb 2023
You’re viewing 10 of 60 services to companies. Get the full list »

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Aon Services to Investors

Service on a Deal — Buy Side (202)

Aon has provided buy side services on 202 deals. It last acted as a general advisor to Elysian Capital on a . The deal was made in 2025.

Investor Name Service Provided Deal Date Deal Type Deal Amount
Elysian Capital Advisor: General Apr 2025
VisionEdgeOne Advisor: General Apr 2025
Aurelius Group Advisor: General Mar 2025
Px3 Partners Advisor: General Mar 2025
Cleanova Advisor: General Jan 2025
NeXtWind Advisor: General Jan 2025
Nexxus Iberia Advisor: Other Due Diligence Nov 2024
Rubicon Partners Advisor: Other Due Diligence Oct 2024
Cleanova Advisor: General Jul 2024
Arcus Infrastructure Partners Advisor: General Jun 2024
You’re viewing 10 of 202 services on a deal — buy side. Get the full list »

Service on a Deal — Sell Side (9)

Aon has provided sell side services on 9 deals. It last acted as a general advisor to Intermediate Capital Group on a made for . The deal was made in 2025.

Investor Name Service Provided Deal Date Deal Type Deal Amount
Intermediate Capital Group Advisor: General Mar 2025
Cinven Advisor: General Jan 2024
Walgreens Boots Alliance Advisor: General Nov 2023
Whysol Investments Advisor: General Dec 2021
Vision Capital Advisor: General Aug 2016
Lantmännen Advisor: General Apr 2013
Horizon Capital (London) Advisor: General Jun 2007
Volkswagen Group Advisor: General Jun 2006
AAC Capital Advisor: General May 2006
To view Aon’s complete services on a deal — sell side history, request access »

Aon Investment Preferences

Preferred Industries Preferred Verticals Preferred Deal Types Geographic Preferences Transaction Amount

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Aon Affiliates

Subsidiaries (60)

Name Industry Location Year Founded
Humn.ai Leeds, United Kingdom 2017
CoverWallet New York, NY 2015
Beaubien Uk Finance London, United Kingdom 2015
Beaubien Finance Ireland Dublin, Ireland 2015
Beaubien Finance Liverpool, United Kingdom 2015
You’re viewing 5 of 60 affiliates. Get the full list.  »

Aon FAQs

  • When was Aon founded?

    Aon was founded in 1979.

  • Where is Aon headquartered?

    Aon is headquartered in London, United Kingdom.

  • What is the size of Aon?

    Aon total number of employees/professionals is 79,704.

  • What service provider type is Aon?

    Aon's service provider type is Financing Advisory.

  • What companies has Aon invested in or acquired?

    Aon has invested in or acquired companies like Mitsubishi Chemical Group (In-House Insurance Agency Business), Griffiths & Armour, and Methis Lab.

  • What are Aon subsidiaries?

    Humn.ai, CoverWallet, and Beaubien Uk Finance are subsidiaries of Aon.

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