John Vrionis
Investing Profile
Sweet spot: $250K
Range: $100K–$500K
Fund: $400M
Sector and stage focus
- Series A: Web3/Crypto, Enterprise, Consumer Internet
- Seed: Web3/Crypto, Consumer Internet, Enterprise
- general: San Francisco Bay Area
- Pre-seed: Web3/Crypto, Consumer Internet, Enterprise
Recent investments by John Vrionis
John Vrionis has 8 named past investments in the public record. The most recent:
| Company | Stage | Date | Round size |
|---|---|---|---|
| CO2 AI | Seed | Sep 2023 | $12M |
| Traceable | Series Unknown | May 2024 | $30M |
| HumanSignal | Series A | May 2022 | $25M |
| Vivun | Series C | May 2022 | $75M |
| FluidCloud | Seed | Jul 2025 | $8M |
| Paxton | Series A | Jan 2025 | $22M |
| Resolve.ai | Series A | Dec 2025 | $130M |
| Roboto AI | Seed | Apr 2023 | $5M |
Frequent co-investors
John Vrionis has co-invested with: Sebastian Duesterhoeft, Satish Dharmaraj, Matt Murphy.
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