There are many companies that contribute to 3GPP technologies, including WCDMA/HSPA, LTE, and the EPC; however, only a handful of companies stand out across the board. ABI Research looked at the number of chairmanships, rapporteurships, overall contributions, approved contributions, and discussion papers for 3GPP standards. This was done for RAN1, RAN2, RAN3, RAN4, RAN5, SA1, SA2, SA3, SA4, SA5, CT1, CT3, and CT4 from 2009 through 2012.