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Sisyphus Ventures

Sisyphus Ventures

Londonsisyphus.vc

Overview

Sisyphus Ventures is a venture capital fund that invests in defense technology startups.

Year Founded

2025

Portfolio Companies

2

Investments

Sisyphus Ventures investments
CompanyDateStageLead
StendrApr 2026Pre SeedCo-investor
MXIFeb 2024Early FundingCo-investor

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

HeadquartersLondon
Year Founded2025

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