QuinStreet
 | |
| Type | Public |
|---|---|
| Nasdaq: QNST S&P 600 component | |
| Industry | Performance marketing, media online |
| Founded | 1999 |
| Founder | Doug Valenti |
| Headquarters | Foster City, California, U.S. |
| Key people | Doug Valenti (CEO) Nina Bhanap (president and CTO) |
| Revenue |  US$1.29 billion (2026) |
| US$81.2 million (2026) | |
Number of employees | 937 (2023) |
| Website | www |
QuinStreet, Inc. is a publicly traded online marketing company based in Foster City, California. The company helps generate web traffic for clients by acquiring popular domain names.
The company was founded in 1999, and was publicly listed in 2010.