Strong revenue growth across all the segments: In 2021, total revenue increased by $1.1 billion, or 10%, from $11.1 billion in 2020 to $12.2 billion. The increase was caused by a 9% increase in organic revenue. Revenue for Commercial Risk Solutions increased by $774 million, or 13%, from $5.9 billion in 2020 to $6.6 billion in 2021. In 2021, organic revenue growth was 11%, reflecting expansion across all significant geographies and fueled by effective new client acquisition, client retention, and renewal book portfolio management. Revenue for Reinsurance Solutions rose by $183 million, or 10%, to $2.0 billion in 2021 from $1.8 billion in 2020. The strong net new business generation in treaty, along with strong growth in faculty placements and double-digit growth in capital markets transactions, were the main drivers of organic revenue growth in 2021, which was 8%. Revenue for Health Solutions increased by $87 million, or 4%, to $2.2 billion in 2021 from $2.1 billion in 2020. In 2021, organic revenue growth was 10%, driven by a double-digit increase in human capital as a result of the expansion of both rewards and assessments solutions. Revenue for Wealth Solutions increased by $85 million, or 6%, to $1.4 billion in 2021 from $1.3 billion in 2020. Growth in investments, including strong growth in delegated investment management, as well as growth in retirement, primarily from higher utilisation rates and project-related work, drove the 2 percent organic revenue growth in 2021.
Highly diversified portfolio of products and services: Aon operates through four major business segments namely, Commercial Risk Solutions, Reinsurance Solutions, Health Solutions, and Wealth Solutions. Commercial Risk Solutions includes captives’ management, specialty solutions, global risk consulting, and affinity programmes. In the field of retail brokerage, Aon's devoted teams of risk professionals make use of thorough analytics capabilities and insights to offer clients risk advice for their businesses. Reinsurance Solutions consists of capital markets, facultative reinsurance, and treaty reinsurance. By addressing underwriting and capital objectives at the portfolio level through treaty reinsurance, its clients are better able to manage the integration of premium growth, return on capital, and rating agency interests. Solutions for voluntary benefits and enrollment, consulting, and human capital are all included under the heading of "Health Solutions." Consulting and brokerage create and implements cutting-edge, specialised health and benefits strategies for clients of all sizes across industries and regions to manage risk, promote engagement, and strengthen the workforce by enhancing health and well-being. Pension administration, investments consulting, and retirement consulting are all included in Wealth Solutions. Retirement consulting has a specialisation in providing actuarial services, risk management, strategic design consulting on clients' retirement programmes, pension de-risking, governance, integrated pension administration, and legal and compliance consulting. They also assist organisations in controlling the volatility of their balance sheets. Retirement consulting, pension administration, and investment consulting are all included in Wealth Solutions. They aid businesses in controlling the volatility of their balance sheets. Aon's pension expertise is used in retirement consulting and pension administration to provide top-notch integrated retirement services.