Aon competitorsClear all

Aon's top competitors include Marsh & McLennan Companies, Willis Towers Watson, Gallagher and Jardine Lloyd Thompson.
Aon
Aon
Aon provides professional services, including a range of risk, retirement, and health solutions.
Marsh & McLennan Companies
Marsh & McLennan Companies
Marsh & McLennan Companies is a global professional services firm providing advice and solutions in the areas of risk, strategy, and people.
Willis Towers Watson
Willis Towers Watson
Willis Towers Watson is an advisory, broking, and solutions company.
Gallagher
Gallagher
Gallagher is an insurance brokerage, risk management, and consulting firm that serves communities around the globe.
Jardine Lloyd Thompson
Jardine Lloyd Thompson
Jardine Lloyd Thompson Group is a multinational corporation providing insurance, reinsurance and employee benefits related advice services.
Founding Date
Founding Date
1987
Founding Date
1871
Founding Date
1828
Founding Date
1927
Founding Date
1997
Type
Type
Public
Type
Public
Type
Public
Type
Public
Type
Public
Tags
Locations
Locations
London, GB HQ
Oranjestad, AW
Adelaide, AU
Ayr, AU
Bankstown, AU
Brisbane City, AU
see more
Locations
New York, US HQ
Adelaide, AU
Adelaide, AU
Albury, AU
Barangaroo, AU
Brisbane City, AU
Broadmeadow, AU
see more
Locations
London, GB HQ
Buenos Aires, AR
Mar Del Plata, AR
Adelaide, AU
Brisbane City, AU
Melbourne, AU
Perth, AU
see more
Locations
Rolling Meadows, US HQ
Saint John's, AG
Aitkenvale, AU
Alice Springs, AU
Beenleigh, AU
Birtinya, AU
Charlestown, AU
see more
Locations
London, GB HQ
Lancing, GB
Employees
Employees
50,000
Employees
76,00017% increase
Employees
46,6008% increase
Employees
33,30010% increase
Employees
10,453
Valuation ($)
Valuation ($)
48.5 b
Valuation ($)
57 b
Valuation ($)
27.4 b
Valuation ($)
20.8 b
Valuation ($)
3.7 b
Twitter followers
Twitter followers
38.8 k
Twitter followers
7.8 k
Twitter followers
5.8 k
Twitter followers
7.2 k
Twitter followers
N/A
Number of tweets (last 30 days)
Number of tweets (last 30 days)
25
Number of tweets (last 30 days)
283
Number of tweets (last 30 days)
207
Number of tweets (last 30 days)
88
Number of tweets (last 30 days)
N/A
Average likes per tweet (last 30 days)
Average likes per tweet (last 30 days)
5.4
Average likes per tweet (last 30 days)
2.3
Average likes per tweet (last 30 days)
0.9
Average likes per tweet (last 30 days)
3.1
Average likes per tweet (last 30 days)
N/A
Percentage of tweets with engagement (last 30 days)
Percentage of tweets with engagement (last 30 days)
100%
Percentage of tweets with engagement (last 30 days)
99.29%
Percentage of tweets with engagement (last 30 days)
54.59%
Percentage of tweets with engagement (last 30 days)
86.36%
Percentage of tweets with engagement (last 30 days)
N/A
Alexa Website Rank
Alexa Website Rank
46003
Alexa Website Rank
193131
Alexa Website Rank
120318
Alexa Website Rank
98037
Alexa Website Rank
N/A
Employee Rating
Employee Rating
3.6
Employee Rating
3.5
Employee Rating
3.7
Employee Rating
3.3
Employee Rating
3.7

Financial

Revenue (est.)
Revenue (est.)
$11b (FY, 2019)
Revenue (est.)
$16.7b (FY, 2019)
Revenue (est.)
$9b (FY, 2019)
Revenue (est.)
$7.4b (FY, 2019)
Revenue (est.)
£1.5b (FY, 2018)
Cost of goods
Cost of goods
N/A
Cost of goods
N/A
Cost of goods
$5.2b (FY, 2019)
Cost of goods
$1.4b (FY, 2019)
Cost of goods
N/A
Gross profit
Gross profit
N/A
Gross profit
N/A
Gross profit
$3.8b (FY, 2019)
Gross profit
$6b (FY, 2019)
Gross profit
N/A
Net income
Net income
$1.6b (FY, 2019)
Net income
$1.7b (FY, 2019)
Net income
$1.1b (FY, 2019)
Net income
$668.8m (FY, 2019)
Net income
£45.2m (FY, 2018)

Operating

Countries
Countries
120 (FY, 2019)
Countries
130 (FY, 2016)
Countries
140 (FY, 2019)
Countries
150 (FY, 2016)
Countries
135 (FY, 2017)
Locations
Locations
N/A
Locations
N/A
Locations
N/A
Locations
600 (FY, 2016)
Locations
40 (FY, 2017)
For sources of this data, please see the company profile

View company profiles

Marsh & McLennan Companies
HQ
New York, US
Employees
76,000↑ 17% increase

Marsh & McLennan Companies is a global professional services firm providing advice and solutions in the areas of risk, strategy, and people.

View company
Willis Towers Watson
HQ
London, GB
Employees
46,600↑ 8% increase

Willis Towers Watson is an advisory, broking, and solutions company.

View company
Gallagher
HQ
Rolling Meadows, US
Employees
33,300↑ 10% increase

Gallagher is an insurance brokerage, risk management, and consulting firm that serves communities around the globe.

View company
Jardine Lloyd Thompson
HQ
London, GB
Employees
10,453

Jardine Lloyd Thompson Group is a multinational corporation providing insurance, reinsurance and employee benefits related advice services.

View company