Nokia Corp: Since 1865

Telephone Holdings LM Ericsson: Since 1876

Alcatel Inc: Since 1898

Samsung Electronics: Since 1938.03.01

Sony Group Corp: Since 1946.05.07

LG Group: Since 1947.01.05

Apple Inc: Since 1976.04.01

Lenovo Group: Since 1984

BlackBerry Ltd: Since 1984

Huawei Technologies Co.,Ltd: Since 1987.09.15

ASUSTeK Computer Inc: Since 1990.04.02

Coolpad Group: Since 1993.04

HTC Corp: Since 1997.05.15

Hedy Holdings Co.,Ltd: Since 1997.08.26

ZTE Co.,Ltd: Since 1985

Konka Mobile: Since 1999.05

Nubia Technology Co., Ltd: Since 2001.09.12

Sony Ericsson Mobile Communications AB: Since 2001.10.01

Shenzhen Gionee Telecom Equipments Co.,Ltd: Since 2002.09.16

Meizu Technology Co.,Ltd: Since 2003.03.14

OPPO Guangdong Mobile Communications Co., Ltd: Since 2003.04.11

Transsion Holdings Inc: Since 2006

Xiaomi Corp: Since 2010.03.03

Vivo Mobile Communications Co., Ltd: Since 2010.06.07

Shenzhen Doov Technology Co.,Ltd: Since 2009

Smartisan Technology Co.,Ltd: Since 2012.05.15

Shenzhen Oneplus Technology Co., Ltd: Since 2013.12.17

Beijing Everest Mobile Communications Co.,Ltd: Since 2015.12.08

Nanchang Black Shark Technology Co., Ltd: Since 2018.04.13

Shenzhen Realme Mobile Communications Co.,Ltd: Since 2018.05.04