Osegi
Startups·2 min read

Booost closes Series C at ¥1.75 billion, total funding ¥5.2bn

Japanese startup Booost has completed the final close of its Series C at ¥1.75 billion, lifting total funding to ¥5.2 billion as SSBJ disclosure rules near.

Dashboard of a sustainability ERP platform showing consolidated financial and non-financial data for a large company.
Image: BRIDGE

Booost, the Tokyo-area company behind the "booost" corporate value management OS, announced on 9 November that its Series C round reached final close on 28 October. The round totals ¥1.75 billion, bringing cumulative funding to ¥5.2 billion.

SPARX Asset Management (Mirai Sosei No. 3 Fund) and AG Capital subscribed to the latest third-party share allotment. In the first close in March, One Capital and Pronexus invested ¥700 million. Pronexus is also co-developing an integrated financial and non-financial disclosure system compliant with SSBJ standards.

What the platform does

Founded in 2015, Booost links financial and non-financial data with AI, from regulatory compliance to management decisions and growth investment. Its core product, booost Sustainability, is a sustainability ERP that gathers ESG data from group companies and supply chains in Japan and abroad, automates aggregation and allows real-time monitoring. It supports multi-tier approval flows, XBRL disclosure, third-party assurance and financial impact calculation.

The software supports 25 languages and includes four AI agents: supplier ESG assessment, SSBJ and CSRD report drafting, audit trail management, and Scope 1–3 emissions calculation. Editions exist for manufacturing, logistics and transport, and the automotive industry. Customers are mainly Prime Market companies with market capitalisation above ¥500 billion. As of last December it was used by about 6,500 companies at more than 197,000 sites in over 95 countries, including ASICS, Dai Nippon Printing and ITOCHU.

Why the timing matters

From the fiscal year ending March 2027, Prime Market companies worth ¥3 trillion or more must begin SSBJ-based disclosure in their securities reports, with third-party assurance expected from March 2028. That requires year-round data definition, collection, approval and audit-trail management rather than a once-a-year tally. Booost also notes July's government growth strategy and a revised Corporate Governance Code, which make profit above the cost of capital (EP) a key management yardstick. It says many firms still hold such data in scattered departments and sites.

The funds will go to three areas: strengthening the AI foundation, including analysis of how human capital, climate and geopolitics affect future earnings and EP; enterprise controls such as access rights, approvals, audit trails and calculation transparency across multilingual, multi-site operations; and hiring plus wider partner collaboration to support rollout and use in management.

Apps worth a look

SUMO: the number puzzle

Tap the right tiles, add them up, hit the target. Easy to learn, hard to master. Free, for all ages.

Tags:booostseries csustainability erpssbjesgjapan

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