STT vs WTW Comparison

State Street is a leading provider of financial services, including investment servicing, investment management, and investment research and trading. With approximately $49 trillion in assets under custody and administration, and $5.1 trillion in assets under management, as of June 30, 2025, State Street operates globally in more than 100 geographic markets and employs about 53,000 worldwide.

Willis Towers Watson PLC is an advisory, broking, and solutions company that provides data-driven, insight-led solutions in the areas of people, risk, and capital. The company's segments include Health, Wealth & Career (HWC) and Risk & Broking (R&B). The HWC segment provides an array of advice, broking, solutions and technology for employee benefit plans, institutional investors, compensation and career programs, and employee experience overall. It focuses on four key areas: Health, Wealth, Career and Benefits Delivery & Outsourcing. The R&B segment provides risk advice, insurance brokerage and consulting services to clients ranging from small businesses to multinational corporations. Its R&B segment includes two businesses: Corporate Risk & Broking and Insurance Consulting and Technology.