Livery companies are historic trade associations in London that represent various professions and crafts. They originated in the Middle Ages, initially serving as guilds to regulate trade, maintain standards, and protect the interests of their members. Today, there are over 100 livery companies, each associated with a specific trade or profession, such as bakers, butchers, and goldsmiths. These companies play a significant role in the city's social and charitable activities. They often support education, apprenticeships, and community projects, contributing to the welfare of London and its residents. Livery companies also participate in ceremonial events, showcasing their rich traditions and history.