MS vs MMC Comparison

Morgan Stanley is a massive global financial services firm, with offices in 42 countries and more than 80,000 employees as of year-end 2024. The firm cut its teeth in investment banking and institutional trading, where it maintains a strong presence today, but generates the lion share of its income from wealth and asset management franchises, where it boasted $7.9 trillion in client assets at the end of its most recent fiscal year. After reincorporation as a bank holding company in the wake of the global financial crisis, Morgan Stanley also boasts a top 10 banking franchise by deposits, with nearly $400 billion in customer deposits, predominately attributable to cash sweeps from its wealth management and brokerage businesses.

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.