MRSH vs BX Comparison

Marsh 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.

Blackstone is the world's largest alternative-asset manager with $1.304 trillion in total assets under management, including $937.6 billion in fee-earning assets under management, at the end of March 2026. The company operates with scale in each of its major product lines: private equity (27% of fee-earning AUM and 34% of base management fees), real estate/real assets (30% and 33%), credit and insurance (33% and 26%), and other alternatives (10% and 7%). While the firm primarily serves institutional investors (84% of AUM), it also caters to clients in the high-net-worth channel (16%). Blackstone operates through 25 offices in the Americas (8), Europe and the Middle East (9), and the Asia-Pacific region (8).