SoftBank BB Corp.
- AGOOP corp.
GIS (Geographic Information System) service
- BB Backbone Corporation
Provision of backbone network
- BBIX, Inc.
Provision of Internet Exchange (IX) business, and native IPv6 Internet connection service
- Green Field Co.,Ltd.
Design, installation and maintenance of telecommunication system facilities facilitating an advanced information society / Design and installation of power line and various electrical equipments for buildings and communication facilities