FactSet is a financial data and software company that provides analytics and information to investment professionals. Founded in 1978, it offers a wide range of services, including data on stocks, bonds, and commodities, as well as tools for portfolio management and risk analysis. The platform is widely used by asset managers, investment banks, and other financial institutions to make informed decisions. FactSet combines data from various sources, allowing users to access real-time information and historical data, which helps them analyze market trends and evaluate investment opportunities effectively.