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Compare · AON vs BRO

AON vs BRO

Side-by-side comparison of Aon plc (AON) and Brown & Brown Inc. (BRO): market cap, price performance, sector, and recent activity on the wire.

Summary

  • Both AON and BRO operate in Specialty Insurers (Finance), so they compete in similar markets.
  • AON is the larger of the two at $70.17B, about 3.5x BRO ($19.95B).
  • Over the past year, AON is down 7.2% and BRO is down 45.4% - AON leads by 38.3 points.
  • AON has been more active in the news (4 items in the past 4 weeks vs 2 for BRO).
  • Both have 25 recent analyst ratings on file.
PerformanceAON-7.16%BRO-45.44%
2025-06-09+0.00%2026-06-05
MetricAONBRO
Company
Aon plc
Brown & Brown Inc.
Price
$328.64+1.98%
$58.84+2.52%
Market cap
$70.17B
$19.95B
1M return
+6.62%
+3.98%
1Y return
-7.16%
-45.44%
Industry
Specialty Insurers
Specialty Insurers
Exchange
NYSE
NYSE
IPO
News (4w)
4
2
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.

BRO

Brown & Brown Inc.

Brown & Brown, Inc. markets and sells insurance products and services in the United States, Bermuda, Canada, Cayman Islands, Ireland, and the United Kingdom. It operates through four segments: Retail, National Programs, Wholesale Brokerage, and Services. The company offers builders risk, group medical and pharmaceutical, property, commercial auto, homeowners, reinsurance, crop and hail, inland marine, retirement benefit, cyber, disability, risk mitigating warranty products, directors and officers, management liability, errors and omissions, medical stop loss, term life, excess liability, personal auto, umbrella, general liability, prescription drug, workers compensation, and group dental insurance products. It also provides professional liability and related package insurance products for dentistry, legal, eyecare, insurance, financial, physicians, and real estate title professionals, as well as supplementary insurance-related products for weddings, events, medical facilities, and cyber liability; homeowners and personal property policies, residential earthquake, and private passenger automobile and motorcycle coverage; commercial and public entity-related programs; and flood insurance, commercial difference-in-conditions, all-risk commercial property, coastal property programs, lender-placed solutions, sovereign Indian nations, and parcel insurance. In addition, it provides markets and sells excess and surplus commercial insurance products, such as personal lines, homeowners, yachts, jewelry, commercial property and casualty, commercial automobile, garage, restaurant, builder's risk, and inland marine lines; and third-party claims administration and medical utilization management services in the workers' compensation and all-lines liability arenas, as well as Medicare Set-aside, Social Security disability, Medicare benefits advocacy, and claims adjusting services. The company was founded in 1939 and is headquartered in Daytona Beach, Florida.

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