Extel, was formed as the The Exchange Telegraph Co. Ltd in 1872, to distribute financial and business information from the Stock Exchange and other commercial markets direct to subscribers.
It was one of the first companies to establish ticker tape telegraph machines in offices, gentlemen's clubs, banks etc. It used this to provide a financial newswire service.
In 1876 it added a parliamentary service, in 1879 a general news service, and in 1891 a legal service It began operating a worldwide news service in 1913.
The company became part of the Financial Times Information (now Interactive Data Corporation). Its key products were Exshare, launched in 1967, and Exbond. It was subsequently sold to Thomson Financial, now merged to form Thomson Reuters
It lives on in the annual survey of investment analysts which was won in 2008 by UBS