# Johannes Schaback: founder, Stark Defence

Canonical ID: `6bb9eb57-0180-4f7a-8375-49d123211814`

Co-founder and CTO of Stark Defence, a Berlin-based strike drone startup founded in 2024 that raised EUR500M led by Sequoia Capital and Founders Fund at a valuation above EUR3.5 billion in June 2026. A repeat founder who previously served as CTO of SumUp, a global payments technology company.

- **Nationality:** German
- **Verification posture:** verified

## Current roles (1)

- [Stark Defence](https://registry.deploy.report/companies/stark-defence.md) Co-founder and CTO (secondary-verified)

## Foundings (1)

- [Stark Defence](https://registry.deploy.report/companies/stark-defence.md) (cofounder)

See all founders: [/founders](https://registry.deploy.report/founders.md)

## Co-founders (1)

- [Uwe Horstmann](https://registry.deploy.report/people/uwe-horstmann.md) co-founded [Stark Defence](https://registry.deploy.report/companies/stark-defence.md)

## Sources (3)

1. https://thenextweb.com/news/stark-defence-500-million-sequoia-founders-fund-3-5-billion-valuation
2. **Wikipedia** · https://en.wikipedia.org/wiki/STARK
3. **Air Street Press** · https://press.airstreet.com/p/stark-500m


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