Aon plc
Aon plc Appoints New Chief Accounting Officer
Summary
On July 29, 2025, Aon plc announced the appointment of David DeBrunner as its new Senior Vice President, Global Controller, and Chief Accounting Officer, effective September 15, 2025. DeBrunner, who currently holds a similar position at Ally Financial Inc., will replace Michael Neller, who will transition to a new role within the company.
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About Aon plc
Aon plc is a leading global professional services firm that provides a wide array of risk, retirement, and health solutions. The primary function of Aon is to serve as a broker for insurance and reinsurance, helping clients navigate the complex landscape of financial risk and employee benefits. The company plays a significant role in the insurance industry, offering services such as risk management, insurance brokerage, reinsurance brokerage, and human capital consulting. Aon serves various sectors, including healthcare, finance, technology, and manufacturing, by delivering tailored strategic advice and innovative solutions to enhance resilience and performance. With a global presence across more than 120 countries, Aon plc is instrumental in assisting organizations of all sizes to make informed decisions regarding risk and capital management. Its significance in the market is underscored by its commitment to deep data insights and analytics, which enable clients to improve operational efficiency and human capital outcomes, consequently driving long-term value in uncertain economic climates.
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