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Compare · AON vs WTW

AON vs WTW

Side-by-side comparison of Aon plc (AON) and Willis Towers Watson Public Limited Company (WTW): market cap, price performance, sector, and recent activity on the wire.

Summary

  • Both AON and WTW operate in Specialty Insurers (Finance), so they compete in similar markets.
  • AON is the larger of the two at $67.50B, about 2.9x WTW ($23.58B).
  • Over the past year, AON is down 15.0% and WTW is down 21.2% - AON leads by 6.2 points.
  • WTW has been more active in the news (35 items in the past 4 weeks vs 5 for AON).
  • Both have 25 recent analyst ratings on file.
PerformanceAON-15.03%WTW-21.22%
2025-05-30+0.00%2026-05-29
MetricAONWTW
Company
Aon plc
Willis Towers Watson Public Limited Company
Price
$315.98-0.72%
$249.62-0.94%
Market cap
$67.50B
$23.58B
1M return
-2.02%
-13.99%
1Y return
-15.03%
-21.22%
Industry
Specialty Insurers
Specialty Insurers
Exchange
NYSE
NASDAQ
IPO
News (4w)
5
35
Recent ratings
25
25
AON

Aon plc

Aon plc, a professional services firm, provides advice and solutions to clients focused on risk, retirement, and health worldwide. It offers commercial risk solutions, including retail brokerage, cyber, and global risk consulting solutions, as well as acts as a captive insurance solutions provider; and health solutions, such as health and benefits brokerages, and health care exchanges. The company also provides treaty and facultative reinsurance, as well as insurance-linked securities, capital raising, strategic advice, restructuring, and mergers and acquisitions services; and corporate finance advisory services and capital markets solutions products. In addition, it offers strategic design consulting services on their retirement programs, actuarial services, and risk management services; advice services on developing and maintaining investment programs across a range of plan types, including defined benefit plans, defined contribution plans, endowments, and foundations for public and private companies, and other institutions; and advice and solutions that help clients in accelerating business outcomes by enhancing the performance of their people, including assessment and optimized deployment, as well as the design, alignment, and benchmarking of compensation to business strategy and performance outcomes. Further, the company develops, markets, and administers customized insurance programs and specialty market solutions for organizations, and their members or affiliates; operates the Global Risk Insight Platform, which provides data, analytics, engagement, and consulting services; offers CoverWallet, a digital insurance platform for small- and medium-sized businesses; and provides ReView that provides advisory, analysis, and benchmarking services to help reinsurers. Aon plc was founded in 1919 and is headquartered in Dublin, Ireland.

WTW

Willis Towers Watson Public Limited Company

Willis Towers Watson Public Limited Company operates as an advisory, broking, and solutions company worldwide. It operates through two segments, Health, Wealth and Career; and and Risk and Broking. The company offers actuarial support, plan design, and administrative services for traditional pension and retirement savings plans; plan management consulting, broking, and administration services for health and group benefit programs; and benefits outsourcing services. It also provides advice, data, software, and products to address clients' total rewards and talent issues. In addition, the company offers risk advice, insurance brokerage, and consulting services in the areas of property and casualty, aerospace, construction, and marine. Further, it offers investment consulting and discretionary management services to insurance and reinsurance companies; insurance consulting and technology, risk and capital management, pricing and predictive modeling, financial and regulatory reporting, financial and capital modeling, merger and acquisition, outsourcing, and business management services; wholesale insurance broking services to retail and wholesale brokers; and underwriting and capital management, capital market, and advisory and brokerage services. Additionally, the company provides primary medical and ancillary benefit exchange, and outsourcing services to active employees and retirees in the group and individual markets, as well as delivers healthcare and reimbursement accounts, including health savings accounts, health reimbursement arrangements, flexible spending accounts, and other consumer-directed accounts. The company was formerly known as Willis Group Holdings Public Limited Company and changed its name to Willis Towers Watson Public Limited Company in January 2016. Willis Towers Watson Public Limited Company was founded in 1828 and is based in London, the United Kingdom.

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