Angel Bridge
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Angel Bridge positions itself as true 'hands-on' investors who walk alongside entrepreneurs, but this is classic VC marketing speak—what matters is their actual track record. The real credibility comes from Kasai's operational experience as founding CEO of Heartseed, which actually went public for 37 billion yen, and his Goldman/Bain/Unison pedigree. They've built serious institutional backing with a 26 billion yen Fund III, suggesting they can write meaningful checks. Their bet on Smartpay (leading a $7M round) shows they can spot winners in competitive fintech markets and co-invest with top-tier international VCs like Matrix Partners and Global Founders Capital. The team's consulting backgrounds (McKinsey, BCG) mean they'll probably over-analyze your business model, but they understand how to scale companies systematically.
- —Best for: Japanese startups needing serious operational support and institutional credibility
- —Watch out for: Heavy hands-on approach may feel micromanaging for experienced founders
- —Known for: Blue-chip pedigree team with actual unicorn exit experience (Heartseed IPO)
Angel Bridge focuses on investing in revolutionary IT services, SaaS, e-commerce, logistics, and no-code solutions that address Japan's societal challenges, while also supporting university-launched ventures and deep tech startups. Their mission is to create world-renowned mega-ventures with hands-on support as 'advocates of entrepreneurs.'
They primarily invest in seed to Series B stage startups in IT services, university-launched ventures, and deep tech. Their ticket size ranges from 30 million to 2 billion yen for initial investments, with up to 5 billion yen total per company. Portfolio evidence shows investments across enterprise applications, consumer, biotechnology, and fintech sectors.
Kasai founded Angel Bridge after a stellar financial career: University of Tokyo graduate, Goldman Sachs analyst, Bain Capital associate, Unison Capital director, and Chicago Booth MBA. He previously served as founding CEO of Heartseed, which went public in 2024 with a 37 billion yen market cap.
Ex-McKinsey consultant who joined Angel Bridge as their first full-time employee in 2020. He led the formation of their 26 billion yen Fund III in 2025 and handles everything from sourcing to post-investment value creation support.
Former Boston Consulting Group management consultant with experience in corporate strategy and business development across consumer and industrial sectors. He studied applied mathematics at Keio University and University of Tokyo.
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