Aon Overview

Professional Services
Founded In
Organization Type
Aon is a global provider of risk management, insurance and reinsurance brokerage, human resources solutions, and outsourcing services. It employs over 60,000 people in 120 countries worldwide. ACIA is a unit of Aon, based in Dublin, which was set up in 2009. It is one of the first centers established in Ireland that are dedicated to data analytics and innovation. ACIA provides analytical services that identify and create innovative new products and services for the many different divisions within Aon.
The staff at Aon come from unusually diverse demographic backgrounds. The company is 55.0% female and 40.4% ethnic minorities. Despite its diversity in other areas, Aon employees are noticeably lacking in political diversity. It has an unusually high proportion of employees who are members of the Democratic Party, at 68.0%. Employees seem to enjoy working in an otherwise diverse workplace that is dominated by members of the Democratic Party. Aon has great employee retention with staff members usually staying with the company for 4.4 years. The average employee at Aon makes $58,678 per year. Pay at Aon is significantly lower than some of its highest paying competitors, like Deloitte, Watson Wyatt, and Milliman, which pay $91,919, $84,852, and $77,533, respectively.
Based in Chicago, IL, Aon is an industry leader with 50,000 employees and an annual revenue of $12.2B.

The Organization’s Mission

We are driven to empower economic and human possibility for clients, colleagues and communities around the world.


Employee Reviews

Based On 2 Ratings

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Job Openings
561 Positions
Average Salary
$58,678 yearly

Aon Reviews

Employee Reviews

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Employee Reviews

Nov 2021



Little pay, no career progression


fuel, cellphones, wifi, medical aid

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Jun 2020

The Good working environment and people


There is nothing to ignore i look my previous company


Incentives ,overtime work and reward ,self motivation

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The Culture At Aon

Information provided by the company

The Team At Aon

Key People

Gregory Case Brandon Case

Pat Ryan

Aon Rankings

Aon is ranked #23 on the Best Professional Companies to Work For in Illinois list. Zippia's Best Places to Work lists provide unbiased, data-based evaluations of companies. Rankings are based on government and proprietary data on salaries, company financial health, and employee diversity.

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Aon Salaries

Salary Score
The national average salary for an Aon employee in the United States is $58,678 per year. Employees in the top 10 percent can make over $113,000 per year, while employees at the bottom 10 percent earn less than $30,000 per year.
Average Aon Salary
$28.21 hourly
Updated March 16, 2023
Average Employee Earnings

Aon Diversity

Diversity Score
We calculated the diversity score of companies by measuring multiple factors, including the ethnic background, gender identity, and language skills of their workforce.

Aon Gender Distribution


Research Summary. Using a database of 30 million profiles, Zippia estimates demographics and statistics for Aon. Our estimates are verified against BLS, Census, and current job openings data for accuracy. After extensive research and analysis, Zippia's data science team found that:

  • Aon has 50,000 employees.

  • 55% of Aon employees are women, while 45% are men.

  • The most common ethnicity at Aon is White (60%).

  • 15% of Aon employees are Hispanic or Latino.

  • 12% of Aon employees are Black or African American.

  • The average employee at Aon makes $58,678 per year.

  • Aon employees are most likely to be members of the democratic party.

  • On average, employees at Aon stay with the company for 4.4 years.

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Aon Employee Political Affiliation

Aon employees are most likely to be members of the Democratic Party. The largest donation made to a political party by an Aon employee was by Patrick Ryan Sr. Patrick Ryan Sr donated $150,000 to the Republican Party.



Democratic Party

68.0 %

Republican Party

30.7 %

Minnesota Democratic–Farmer–Labor Party

0.4 %

Libertarian Party

0.4 %
Employee Political Donations
NameJob TitlePartyDonation
Patrick Ryan SrExecutiveRepublican Party$150,000
Pamela NewmanPresident/Chief Executive OfficerDemocratic Party$49,450
Wirth MunroeInsurance AgentRepublican Party$42,500
Mark BrockintonManaging DirectorRepublican Party$42,000
Patrick RyanChairpersonRepublican Party$41,900
Corbett RyanExecutiveRepublican Party$30,100
Thomas DanisAccount ExecutiveRepublican Party$25,200
Larry HudasInsurance BrokerRepublican Party$22,500
Michael LandaExecutiveRepublican Party$16,500
Patrick Ryan JrExecutiveRepublican Party$15,000
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Aon Financial Performance

Performance Score
We calculated the performance score of companies by measuring multiple factors, including revenue, longevity, and stock market performance.

Aon Annual Revenue


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Highest Paying Aon Competitors

Competitors of Aon include Deloitte, Watson Wyatt, and Milliman. The wages at Deloitte average higher than the other similar companies, where the median salary is $91,919 per year. Employees at Watson Wyatt earn an average of $84,852 per year, and the employees at Milliman earn an average salary of $77,533 per year.

Frequently Asked Questions about Aon

When was Aon founded?

Aon was founded in 1982.

How many Employees does Aon have?

Aon has 50,000 employees.

How much money does Aon make?

Aon generates $12.2B in revenue.

What industry is Aon in?

Aon is in the professional services industry.

What is Aon's mission?

Aon's mission statement is "We are driven to empower economic and human possibility for clients, colleagues and communities around the world."

What type of company is Aon?

Aon is a public company.

Who are Aon's competitors?

Aon competitors include Mercer, ADP, Deloitte, Hewitt, Milliman, Paycom, Ceridian, Pinnacle Partners, Watson Wyatt, Client Services, Bartech, Firm Solutions, AFBA, SIRVA Worldwide, Benefit Management Group, Russell Tobin, Inspirus, The Resource Group, Consumer Debt Counselors, Innotech Services.

Who works at Aon?

Gregory Case Brandon Case (CEO)

Pat Ryan (Founder)

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Zippia gives an in-depth look into the details of Aon, including salaries, political affiliations, employee data, and more, in order to inform job seekers about Aon. The employee data is based on information from people who have self-reported their past or current employments at Aon. The data on this page is also based on data sources collected from public and open data sources on the Internet and other locations, as well as proprietary data we licensed from other companies. Sources of data may include, but are not limited to, the BLS, company filings, estimates based on those filings, H1B filings, and other public and private datasets. While we have made attempts to ensure that the information displayed are correct, Zippia is not responsible for any errors or omissions or for the results obtained from the use of this information. None of the information on this page has been provided or approved by Aon. The data presented on this page does not represent the view of Aon and its employees or that of Zippia.

Aon may also be known as or be related to AON, AON Corp, Aon, Aon Corp, Aon Corporation and Aon plc.