Diamondhead Ventures is an early-stage technology venture capital firm investing in start-ups with disruptive innovations.
| Company | Date | Round | Size | Participants |
| UPEK | 10/09 | Unattributed | $6.2M | 4 |
| Truviso | 7/09 | Unattributed | $3M | 3 |
| FirstRain | 1/08 | Unattributed | $13.6M | 3 |
| Serus | 7/07 | Series C | $8M | 3 |
| Danger | 10/01 | Series B | $36M | 6 |
| Serus | Unattributed | $5.8M | 2 |
