QuinStreet headquarters details
- City
- Foster City
- State / region
- California
- ZIP / postal code
- 94404
- Country
- United States
- Phone
- +1 650 578 7700
- Founded
- 1999
- Website
- quinstreet.com
- Stock
- NASDAQ: QNST
- linkedin.com/company/quinstreet
Location map
Open in Google MapsAll QuinStreet office locations
| City | State / region | Country | Type |
|---|---|---|---|
| Foster City HQ | California | United States | Headquarters |
Showing the headquarters of 44 recorded locations. See every location in GraphIQ →
About QuinStreet
QuinStreet (NASDAQ: QNST) is headquartered in Foster City, California, United States. Founded in 1999, the company has 44 recorded locations across 4+ countries and employs approximately 938 people worldwide.
Where is QuinStreet's main office?
QuinStreet's main headquarters office is located at Foster City, California 94404, United States. This is the company's primary corporate address.
QuinStreet regional offices
Beyond its headquarters in Foster City, QuinStreet has recorded locations in United States, Brazil, India and Mexico.
QuinStreet contact information
The main switchboard for QuinStreet headquarters can be reached at +1 650 578 7700. Official website: quinstreet.com.
What does QuinStreet do?
QuinStreet, Inc. specializes in vertical marketing and media on the internet. The Company focuses on clients in the education and financial services industries, as well as has a presence in the home services, business-to-business, and healthcare industries.
QuinStreet competitors & similar companies
Frequently asked questions
Where is QuinStreet headquarters?
QuinStreet's headquarters is located at Foster City, California 94404, United States.
How many offices does QuinStreet have?
GraphIQ records 44 locations for QuinStreet across 4+ countries, as of October 2026.
When was QuinStreet founded?
QuinStreet was founded in 1999 and employs approximately 938 people.
What is QuinStreet's phone number?
The main phone number for QuinStreet headquarters is +1 650 578 7700.
How many employees does QuinStreet have?
QuinStreet has approximately 938 employees (GraphIQ estimate, 2026).
Is QuinStreet a public company?
Yes. QuinStreet is publicly traded on NASDAQ under the ticker QNST.