Citigroup Inc.

Citigroup Inc. is the sort of global bank people turn to for corporate banking, transaction services, markets, and a large international footprint. By our assessment, its main advantage is scale across countries and business lines: it can connect payments, financing, and capital-market activity inside one giant institution. That breadth is also the burden, because large universal banks are rarely simple and often feel less personal than narrower rivals. In practice, Citigroup is a world of branches, institutional relationships, and highly structured services rather than a neat retail-only product. It sits among the big international banks, where reach and complexity come bundled together. The name carries the weight of a major banking house, and that is what most people are paying for when they use it at all.