How many acquisitions has Aon made so far?

Aon has completed 43 acquisitions so far, with an average acquisition amount of $7.75B.

Which countries does Aon usually acquire in?

Aon has made acquisitions in 18 countries with the most activity in United States and United Kingdom.

In which year did Aon make the most acquisitions?

Aon was most active in 2017, with 7 acquisitions completed in that year.

List of 43 Acquisitions by Aon (Sep 2026)

Q: Which is Aon's latest acquisition?

Aon's most recent acquisition is USI, a Provider of insurance brokerage and consulting services, acquired in August 2026.

Aon has made a total of 43 acquisitions. It has completed these across 15 sectors, including Insurance Distribution, HRTech, and Service Providers to Banks. These activities span 18 countries, notably the United States, United Kingdom, and Germany. Peak years included 2017 with 7 acquisitions, 2023 with 5 acquisitions, and 2024 with 4 acquisitions. The average number of acquisitions per year for the 2020–2025 period is 2.6, and it has completed 2 acquisitions so far this year. Its most recent acquisition is USI, a provider of insurance brokerage and consulting services founded in 1994 and based in Valhalla; the transaction occurred in August 2026.

Here's the year on year acquisition history of Aon:

Number of Total Acquisitions

Year	# Acquisitions
2026	2
2024	4
2023	5
2022	3
2021	1
2020	4
2019	2
2018	4
2017	7
2016	3
2015	1
2014	2
2013	1
2012	1
2003	1
1993	1

View all Acquisitions by Aon

Recent acquisitions by Aon

Aon's most recent acquisition - USI is a Provider of insurance brokerage and consulting services, founded in 1994 and located in Valhalla. Aon acquired it in August 2026 for a price of $*****.

Here is the list of all acquisitions by Aon sorted by the latest acquisition date:

Acquired on	Acquired Company	Acquisition Price	Facilitators	Stake Acquired	Acquisition Multiple
Aug 31, 2026	USI	lgwr	w{jr	81	591
Jan 08, 2026	Lta Assekuranz	lscx	aaua	24	505
Nov 01, 2024	Griffiths & Armour	glrf	{arl	52	868
Aug 05, 2024	Methis Lab	aajz	bgao	56	845
Jul 03, 2024	Delta Assurance	xrje	gdub	48	539