OSI Systems, Inc. revenue for the last year amounted to 1.54 B USD, the most of which — 1.04 B USD — came from its highest performing source at the moment, Security, the year earlier bringing 760.29 M USD. The greatest contribution to the revenue figure was made by United States — last year it brought OSI Systems, Inc. 527.12 M USD, and the year before that — 653.13 M USD.