{"id":"953a1c35-5bc7-45fc-812c-919b9088f6a1","slug":"satoshi-sakaguchi","name":"Satoshi Sakaguchi","bioBrief":"CFO of TIER IV since 2018, overseeing finance operations. A Certified Public Accountant with extensive experience in financial audit, investment, and corporate management. Holds a BEc from Kyoto University. Appointed as Director and CFO as part of TIER IV's new management structure with external directors.","priorExits":null,"nationality":"Japanese","verificationPosture":"verified","aliases":[],"sources":[{"url":"https://tier4.co.jp/en/about-us","title":"About us | TIER IV, Inc.","sourceName":"TIER IV (official)"},{"url":"https://people.equilar.com/bio/person/satoshi-sakaguchi-tier-iv-inc/43491905","title":"Satoshi Sakaguchi - Executive Bio, Work History, and Contacts","sourceName":"Equilar"},{"url":"https://www.prnewswire.com/news-releases/tier-iv-launches-new-management-structure-with-appointment-of-external-directors-302412755.html","title":"TIER IV launches new management structure with appointment of external directors","sourceName":"PR Newswire"}],"reviewStatus":"reviewed","createdAt":"2026-08-09T17:04:48.479Z","updatedAt":"2026-08-10T16:16:56.285Z","educations":[],"companyRoles":[{"id":"826f6d76-332c-44f4-adcf-f8a5b04c2661","personId":"953a1c35-5bc7-45fc-812c-919b9088f6a1","companyId":"8c8a9f0b-110b-4d16-aad1-20798e85da1b","role":"executive","roleTitle":"CFO","startDate":null,"endDate":null,"currentRole":true,"roleBasis":"verified_secondary","createdAt":"2026-08-09T17:04:49.240Z","company":{"slug":"tier-iv","name":"Tier IV"}}],"boardRoles":[],"investorRoles":[],"foundings":[]}