OHA or Open Handset Alliance is an association of almost 84 companies which includes Google, LG, Samsung, Motorola, Intel, Sony, Qualcomm, etc which provide open standards for mobile devices.

oha was established 5th, November 2007 along with 34 members and Google as a lead which includes handset makers, application developers, mobile carriers and chip makers. having android as the flagship software of the alliance which competed with the makers such as Apple, Nokia(Symbian), blackberry, Microsoft.