Aon is a leading professional services firm in the United Kingdom, specializing in risk, retirement, and health solutions. Founded in 1919, Aon has grown to become one of the largest insurance brokers in the world. The company's headquarters are located in London, England.

Aon offers a wide range of products and services to its clients, including risk management solutions, insurance brokerage, employee benefits consulting, and investment advisory services. The company serves clients across various industries, including financial services, healthcare, manufacturing, and technology. On a global scale, Aon operates in over 120 countries, with a significant presence in the Americas, Europe, and Asia-Pacific regions.

The company has a number of noteworthy subsidiaries, including Aon Hewitt, a leading provider of human resources consulting and outsourcing solutions, and Aon Risk Solutions, which focuses on risk management and insurance brokerage. In terms of market position, Aon is recognized as one of the top insurance brokerage firms in the world. It has a strong competitive position, with a large and diverse client base.

Aon's global sales have consistently been strong, and the company continues to expand its presence through strategic acquisitions and partnerships. Over the years, Aon has achieved numerous milestones and accomplishments. In 2010, the company acquired Hewitt Associates to strengthen its position in the human resources consulting space.

Aon has also been recognized for its commitment to corporate social responsibility and has received accolades for its efforts in sustainability, diversity, and community engagement. As of the latest available information, Aon continues to grow and innovate in its industry. The company is constantly developing new products and services to meet the evolving needs of its clients.

Aon's current status reflects its strong market position and its commitment to delivering value and solutions to its clients worldwide. In conclusion, Aon is a leading professional services firm based in the United Kingdom, offering a wide range of risk, retirement, and health solutions on a global scale. With a strong market position and a diverse client base, Aon continues to thrive and expand its presence in the industry