Extel

Originally founded as The Exchange Telegraph Company, Extel Financial Limited became a premier source for corporate and financial information throughout the late 20th century. The company was renowned for its detailed company profiles, financial statements, and particularly for the influential "Extel Survey," which ranked the top investment analysts and brokerage firms in Europe. After being acquired by Thomson Financial, its extensive data archives and services were integrated into the larger Thomson (now Refinitiv/LSEG) product ecosystem, forming a foundational part of the data available to financial professionals today.