Castrum Istanbul
Turkeycastrumistanbul.com
Overview
Castrum Istanbul is a venture capital firm based in Istanbul, Turkey that invests in early-stage technology companies with a focus on fintech, blockchain, and artificial intelligence.
Investments
| Company | Date | Stage | Lead |
|---|---|---|---|
| AIPayWithCrypto | Jun 2026 | Strategic | Co-investor |
| Sparki | Apr 2026 | Seed | Lead |
Sector & Stage Mix
Industry, funding stage, and valuation band breakdowns.
