Castrum Istanbul
Turkeycastrum.istanbul
Overview
Castrum Istanbul is a Turkey-based venture capital firm and incubator that specializes in early-stage investments in crypto, Web3, and blockchain-related startups.
Investments
| Company | Date | Stage | Lead |
|---|---|---|---|
| Nexis Network | May 2024 | Seed | Co-investor |
| Claw Wallet | Apr 2026 | Seed | Lead |
Key People
Semih Başaran
Founder
Sector & Stage Mix
Industry, funding stage, and valuation band breakdowns.
FAQ
Where is Castrum Istanbul based?
Castrum Istanbul is headquartered in Turkey.
When was Castrum Istanbul founded?
Castrum Istanbul was founded in 2021.
How many portfolio companies does Castrum Istanbul have?
Castrum Istanbul has 2 portfolio companies in Caplight's dataset.
What are some companies in Castrum Istanbul's portfolio?
Portfolio companies visible on Caplight include Nexis Network, Claw Wallet.
What was Castrum Istanbul's most recent investment shown here?
Castrum Istanbul's most recent investment in this portfolio sample was in Claw Wallet in 2026.
What sectors does Castrum Istanbul focus on?
Castrum Istanbul focuses on Crypto & Web3, Crypto & Web3, Cybersecurity, AI, Data & Cloud Infrastructure.
What company stages does Castrum Istanbul focus on?
Castrum Istanbul typically invests at the Early stage.
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