Corporate Information

Group Companies and Subsidiaries

Sony Financial Group

Sony Bank was established in 2001 as an online bank mainly for individual customers in Japan. The company is a member of the Sony Financial Group.

The Sony Financial Group is a financial services group comprising the financial holding company Sony Financial Group Inc. and its subsidiaries including Sony Life Insurance Co., Ltd., Sony Assurance Inc. and Sony Bank Inc.

Outline of the Subsidiary
Company nameBlockBloom Incorporated
EstablishedJune 4, 2025
Head office address2-1-6 Uchisaiwaicho, Chiyoda, Tokyo
Representative directorTakafumi Watanabe
Capital300 million yen
StockholderSony Bank Incorporated
100%
Business ActivitiesDesign, implement and support of web3 businesses utilizing blockchain technology, etc.