IBM revenue for the last year amounted to 56.99 B CHF, the most of which — 24.60 B CHF — came from its highest performing source at the moment, Software, the year earlier bringing 22.15 B CHF. The greatest contribution to the revenue figure was made by United States — last year it brought IBM 22.84 B CHF, and the year before that — 21.31 B CHF.