'''Note:'''
* The subsidiaries of '''Nokia''' includes : Nokia Telecommunication Oy and Nokia Siemens.
* The subsidiaries of Ericsson includes : Ericsson GE Mobile Communications Inc, LM Ericsson, ST-Ericsson,Sony Ericcson.
* The Subsidiaries of Alcatel includes : Alcatel-Lucent, Alcatel Shangai bell company, Alcatel Transmission, Lucent Technologies, CIT Alcatel.