Satoshi Shimazaki is a vice-chair of the Japan CloudStack User Group (JCSUG). The JCSUG aims to contribute to CloudStack's growth and human resource development in Japan by providing information about CloudStack in Japanese. It has over 450 members in its mailing list. The group hosts events, writes articles, and answers questions to support the CloudStack community in Japan. While there are many private and public CloudStack users in Japan, their cases are often not public. The JCSUG encourages more study, translation, and book reading meetings to promote CloudStack adoption in Japan.