Limited company a distinction to be made between the publicly tradable companies of the "plc" type (for example, the German Aktiengesellschaft (AG), British PLC, Czech a.s., Italian S.p.A., Hungarian Zrt. and the Spanish, French, Polish, Greek and Romanian S.A.), and the "private" types of company (such as the German GmbH, Portuguese Ltda., British Ltd., Polish sp. z o.o., the Czech s.r.o., the French s.a.r.l., the Italian and Romanian s.r.l., Hungarian kft. and Slovak s.r.o.) This is a company that does not have share capital, but is guaranteed by its "members", who agree to pay a fixed amount in the event of the
British Tabulating Machine Company British Tabulating Machine Company The British Tabulating Machine Company (BTM) was a firm which manufactured and sold Hollerith unit record equipment and other data-processing equipment. During World War II, BTM constructed a number of "bombes", machines used at Bletchley Park to break the German Enigma machine ciphers. The company was formed in 1902 as The Tabulator Limited, after Robert Porter obtained the rights to sell Herman Hollerith's patented machines from the US Tabulating Machine Company (later to become IBM). By 1909, the company had been renamed the "British Tabulating Machine Company Limited". In 1920, the company moved from London to