| Website | s3vc.com |
| Phone | (512) 258-1759 |
| Employees | |
| Description | Early-stage venture capital firm |
S3 Ventures is a group of entrepreneurs, with operating experience in successful technology and medical ventures. Today they help bring together talented entrepreneurs, innovative technology and growing markets to form valuable businesses. They invest primarily in early stage ventures around the Southwest with a focus on Texas.
| Company | Date | Round | Size | Participants |
| Tango Health | 2/12 | Series B | $4M | 1 |
| BlueCava | 10/11 | Series B | $9.5M | 1 |
| Kimbia | 8/11 | Series B | $4M | 1 |
| Digby | 4/11 | Series C | $8M | 4 |
| Tango Health | 11/10 | Series A | $3M | 4 |
| StoredIQ | 10/10 | Unattributed | $10M | 2 |
| LibreDigital | 5/10 | Series C | $8.1M | 3 |
| Sipera Systems | 5/10 | Unattributed | $10.2M | 5 |
| Callvine | 2/10 | Series A | $4M | 1 |
| Invodo | 7/09 | Series B | $6M | 2 |
| StoredIQ | 4/09 | Series C | $8M | 2 |
| Phurnace Software | 7/08 | Series A | $5M | 2 |
| StoredIQ | 6/08 | Series B | $13.1M | 2 |
| Phurnace Software | 9/07 | Series A | $5M | 2 |