Qualys headquarters details
- Street address
- 919 E Hillsdale Blvd
- City
- Foster City
- State / region
- California
- ZIP / postal code
- 94404
- Country
- United States
- Phone
- +1 650 801 6100
- Founded
- 1999
- Website
- qualys.com
- Stock
- NASDAQ: QLYS
- linkedin.com/company/qualys
Location map
Open in Google MapsAll Qualys office locations
| City | State / region | Country | Type |
|---|---|---|---|
| Foster City HQ | California | United States | Headquarters |
Showing the headquarters of 36 recorded locations. See every location in GraphIQ →
About Qualys
Qualys (NASDAQ: QLYS) is headquartered in Foster City, California, United States. Founded in 1999, the company has 36 recorded locations across 11+ countries and employs approximately 2,625 people worldwide.
Where is Qualys's main office?
Qualys's main headquarters office is located at 919 E Hillsdale Blvd, Foster City, California 94404, United States. This is the company's primary corporate address.
Qualys regional offices
Beyond its headquarters in Foster City, Qualys has recorded locations in United States, Australia, China, France, Germany, India, Italy, Japan and 3 other countries.
Qualys contact information
The main switchboard for Qualys headquarters can be reached at +1 650 801 6100. Official website: qualys.com.
What does Qualys do?
Qualys, Inc. provides information technology security risk and compliance management solutions. The Company offers products for vulnerability management, policy compliance, web application scanning, malware detection, and associated security products. Qualys serves customers in the United States.
Qualys competitors & similar companies
Frequently asked questions
Where is Qualys headquarters?
Qualys's headquarters is located at 919 E Hillsdale Blvd, Foster City, California 94404, United States.
How many offices does Qualys have?
GraphIQ records 36 locations for Qualys across 11+ countries, as of October 2026.
What is Qualys's corporate address?
The corporate headquarters address is 919 E Hillsdale Blvd, Foster City, California 94404, United States.
When was Qualys founded?
Qualys was founded in 1999 and employs approximately 2,625 people.
What is Qualys's phone number?
The main phone number for Qualys headquarters is +1 650 801 6100.
How many employees does Qualys have?
Qualys has approximately 2,625 employees (GraphIQ estimate, 2026).
Is Qualys a public company?
Yes. Qualys is publicly traded on NASDAQ under the ticker QLYS.