Saisei Ventures
Overview
Saisei Ventures is a life science venture capital firm that invests in early-stage companies and builds next-generation healthcare ventures by combining Western expertise with Japanese innovation.
Investments
| Company | Date | Stage | Lead |
|---|---|---|---|
| CureApp | Mar 2021 | Series D | Co-investor |
| Craif Inc. | Apr 2022 | Series B Extension | Co-investor |
| Kenai Therapeutics | Feb 2024 | Series A | Co-investor |
| United Immunity, Co., Ltd. | Sep 2026 | VC Round | Co-investor |
| Surzen Biotherapeutics | - | Seed | Lead |
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Key People
Hikaru Saito
Partner
Sven Kili
Partner
Sector & Stage Mix
Industry, funding stage, and valuation band breakdowns.
FAQ
Where is Saisei Ventures based?
Saisei Ventures is headquartered in Cambridge, Massachusetts, United States.
When was Saisei Ventures founded?
Saisei Ventures was founded in 2020.
How many portfolio companies does Saisei Ventures have?
Saisei Ventures has 7 portfolio companies in Caplight's dataset.
What are some companies in Saisei Ventures's portfolio?
Portfolio companies visible on Caplight include CureApp, Craif Inc., Kenai Therapeutics, United Immunity, Co., Ltd., Surzen Biotherapeutics.
What was Saisei Ventures's most recent investment shown here?
Saisei Ventures's most recent investment in this portfolio sample was in United Immunity, Co., Ltd. in 2026.
What sectors does Saisei Ventures focus on?
Saisei Ventures focuses on Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, AI, Data & Cloud Infrastructure, Enterprise Software.
What company stages does Saisei Ventures focus on?
Saisei Ventures typically invests at the Early stage.
What is Saisei Ventures's AUM?
Saisei Ventures's assets under management are estimated between $0.0 and $50.0M.