KKR vs MMC Comparison

KKR is one of the world's largest alternative asset managers, with $664.3 billion in total managed assets, including $526.0 billion in fee-earning AUM, at the end of March 2025. The company has two core segments: asset management (which includes private markets—private equity, credit, infrastructure, energy, and real estate—and public markets—primarily credit and hedge/investment fund platforms) and insurance (following the firm's initial investment in, and then ultimate purchase of, Global Atlantic Financial Group, which is engaged in retirement/annuity and life insurance lines as well as reinsurance).

Marsh McLennan is a professional services firm that provides advice and solutions in the areas of risk, strategy, and human capital. The company operates through two main segments: risk and insurance services and consulting. In risk and insurance services, the firm offers services via Marsh (an insurance broker) and Guy Carpenter (a risk and reinsurance specialist). The consulting division comprises Mercer (a provider of human resource services) and Oliver Wyman (a management and economic consultancy). About half of its revenue is generated outside the US.