SoftBank Group Corp. is a Japanese multinational holding conglomerate headquartered in Tokyo, Japan. The company wholly owns Softbank Corp., Softbank Vision Fund (in Japanese), Arm Holdings, Fortress Investment Group and Boston Dynamics. It also owns stakes in Sprint (ca.85%), Alibaba (29.5%), Yahoo Japan (48.17%), Brightstar (87.1%), Uber (15%), Didi Chuxing (ca.20%), Ola (ca.30%), Grab, Renren (42.9%), InMobi (45%), Hike (25.8%), Snapdeal (ca.30%), Brain, Fanatics (ca.22%), Guardant Health, Improbable Worlds (ca.50%), Mapbox, Nauto, Nvidia (ca.5%), One97 Communications (ca.20%), Oravel Stays (42%), OSIsoft, PingAn Heath Cloud (7.41%), Plenty United, Roviant Sciences, Slack Technologies (ca.5%), Vir Biotechnology, WeWork (ca.22%), Zhongan Online P&C Insurance (5%), Compass (ca.22%), Auto1 (ca.20%), Wag (45%), Katerra (ca.28%), Cruise Automation (ca.19.6%), Ele.me, Getaround, Packet. It also runs Vision Fund, the world's largest technology fund.

The company is known for its leadership by founder Masayoshi Son. It now owns operations in broadband; fixed-line telecommunications; e-commerce; internet; technology services; finance; media and marketing; semiconductor design; and other businesses.

SoftBank was ranked in the Forbes Global 2000 list as the 39th largest public company in the world, and the 4th largest publicly traded company in Japan after Toyota, MUFG, NTT.

The logo of SoftBank is based on the Kaientai, a naval trading company that existed at the end of the Tokugawa Shogunate, and is meant to represent a "21st century" version of their passion for the enterprise. Resembling an equals sign, it also represents how SoftBank "has an 'answer' it can provide for customers and help solve the various problems the world faces", as well as "interactive communication and the unlimited possibilities of the Internet".