What do the 4 letters at the end of German company names mean?

The four letters at the end of German company names typically indicate the legal structure of the business. Common abbreviations include "GmbH" (Gesellschaft mit beschränkter Haftung), which means limited liability company; "AG" (Aktiengesellschaft), which refers to a public limited company; and "KG" (Kommanditgesellschaft), meaning limited partnership. These designations provide information about the company's liability, ownership structure, and regulatory requirements.