Müller (German trade company) then opened another 86 outlets by 1990. Since then the company has expanded in Europe. Müller has more than 34,000 employees. In 2010 the company earned revenues of 2.42 billion Euro. Erwin Müller and Elke Menold are General Managers of the company. In 2004, the company was transformed into a Limited & Co. KG (a hybrid of the English cognate of the German GmbH and the German word "Compagnie Kommanditgesellschaft", meaning "limited partnership") when the company registered under English law in London. By October 2017 Müller had a total of 812 outlets in 7 European countries: Müller is primarily a
Westinghouse Brake and Signal Company Ltd & Signal Company is Westcode, a high-power semiconductor manufacturer, now part of the IXYS Corporation. On 2 May 2013, the acquisition of Invensys Rail by Siemens was successfully completed. On 1 July 2013, the new company name for Invensys Rail Limited became Siemens Rail Automation Limited, with Westinghouse Brake & Signal Holdings becoming Siemens Rail Automation Holdings Limited. With this, the Westinghouse name disappeared from the railway signalling industry. Several years later, Siemens announced that it planned to merge its rail assets, including the former Westinghouse Signal business, with Alstom. Westinghouse Brake and Signal Company Ltd The Westinghouse Brake &