IBM revenue for the last year amounted to 52.08 B CHF, the most of which — 22.15 B CHF — came from its highest performing source at the moment, Software, the year earlier bringing 23.15 B CHF. The greatest contribution to the revenue figure was made by United States — last year it brought IBM 21.31 B CHF, and the year before that — 23.21 B CHF.