Commercial Bank A financial institution that provides services such as a accepting deposits and giving business loans. Investopedia Says: Commercial banking activites are different than those of investment banking, which include underwriting, acting as an intermediary between an issuer of securities and the investing public, facilitating mergers and other corporate reorganizations, and also acting as a broker for institutional clients. Related Terms: 3-6-3 Rule Foreign Branch Bank Investment Bank Nonbank Bank Subsidiary Bank Underwriting |