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Saisei Ventures

Saisei Ventures

Cambridge, Massachusettssaiseiventures.com

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.

Year Founded

2020

Portfolio Companies

5

Investments

Saisei Ventures investments
CompanyDateStageLead
Senno Therapeutics Inc.Apr 2026SeedLead
Optieum BiotechnologiesJan 2025Series ALead
Kenai TherapeuticsFeb 2024Series ACo-investor
Kenai TherapeuticsJul 2022SeedLead
Craif Inc.Apr 2022Series B ExtensionCo-investor

Key People

Hikaru Saito

Partner

Sven Kili

Partner

Sector & Stage Mix

Industry, funding stage, and valuation band breakdowns.

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SeedSeries ASeries BGrowth

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Investment Activity

Yearly cadence, pace, and funding raised over time.

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2021
2022
2023
2024
2025
2026

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FAQ

Firmographic Details

HeadquartersCambridge, Massachusetts
Year Founded2020

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