| Website | altosventures.com |
| Blog | blog.altosventure... |
| @altosvc | |
| Phone | 650-234-9771 |
| Employees | 7 |
| Founded | 1/96 |
Altos Ventures is a first-stage venture capital firm
| Company | Date | Round | Size | Participants |
| Branders.com | 12/09 | Unattributed | $5M | 4 |
| Immunet | 11/09 | Series A | $2M | 2 |
| Immunet Corporation | 11/09 | Series A | $2M | 1 |
| Roblox | 8/09 | Series B | $2.2M | 2 |
| Koofers | 12/08 | Series A | $500k | 2 |
| Echo | 10/08 | Series B | $3.6M | 2 |
| Demandbase | 8/08 | Unattributed | $8M | 3 |
| Provade | 6/08 | Unattributed | $3.3M | 1 |
| WhiteHat Security | 6/08 | Series D | $7M | 4 |
| CrownPeak | 6/08 | Series B | $6M | 3 |
| Outspark | 1/08 | Series B | $11M | 3 |
| Trilibis | 2008 | Series B | $5.7M | 2 |
| NetBase | 12/07 | Series B | $4M | 2 |
| Billeo | 11/07 | Series B | $7M | 4 |
| DemandTec | 8/07 | Debt | $6M | 3 |
| Accolo | 6/07 | Series B | 1 | |
| Outspark | 4/07 | Series A | $4M | 2 |
| Pandora.TV | 4/07 | Series B | $10M | 4 |
| Provade | 9/06 | Series C | $5.2M | 1 |
| Billeo | 4/06 | Series A | $4M | 3 |
| Pandora.TV | 2/06 | Series A | $6M | 2 |
| NetBase | 6/05 | Series A | $5M | 2 |
