Formus Capital is a global early-stage venture capital firm headquartered in London, backed by a network of family offices. The firm invests in mission-driven technology teams building high-growth businesses, with a focus on AI, software, and data infrastructure.
53% of their portfolio is in AI. Their most common stage is seed (67% of deals). Average disclosed round size is $15.8M (across 15 rounds with reported amounts).
Portfolio
11
Fund Size
$63.1M
Top Stage
Seed
Last 12 Mo
2
Team
FS
Fethi Sabancı Kamışlı
Managing Partner
BK
Burak Karahasan
Investment Professional
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
15 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 Sapiom | Seed | $15M | Feb 2026 |
 Letter AI | Series A | $10.6M | Jan 2026 |
 PostHog | Series E | $75M | Sep 2025 |
 Kalder | Seed | $10.1M | Nov 2024 |
 Kalder | Seed | $7M | Nov 2024 |
 Zingly | Seed | $10M | Jun 2024 |
 VectorShift | Seed | $3M | Feb 2024 |
| Zingly | Seed | $10M | Jan 2024 |
| VectorShift | Seed | $3M | Jan 2024 |
 Every | Seed | $9.5M | Nov 2023 |
 Praso | Series A | $9.3M | Aug 2023 |
 DynamoFL | Series A | $15.1M | Aug 2023 |
| DynamoFL | Seed | $15.1M | Jan 2023 |
| Praso | Seed | $9.5M | Jan 2023 |
| SSapiom Ai | Series A | $35M | — |
Top Co-Investors
Y Combinator5 shared
Accel3 shared
Nexus Venture Partners3 shared
Soma Capital3 shared
Operator Collective2 shared
Menlo Ventures2 shared
Okta Ventures2 shared
Gradient Ventures2 shared
Coinbase Ventures2 shared
Anthropic2 shared
Base10 Partners2 shared
8VC2 shared
Emergence Capital2 shared
Human Ventures2 shared
GingerBread Capital2 shared
Base2 shared
NFX2 shared
Valor Equity Partners2 shared
1984 Ventures2 shared
468 Capital2 shared
Last updated: 20 October 2026