OSI Systems, Inc. revenue for the last year amounted to 1.28 B USD, the most of which — 760.29 M USD — came from its highest performing source at the moment, Security, the year earlier bringing 663.16 M USD. The greatest contribution to the revenue figure was made by United States — last year it brought OSI Systems, Inc. 653.13 M USD, and the year before that — 569.60 M USD.