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Qualys, Inc.
Company typePublic
IndustryCyberSecurity Company Network Security
IT Security
Information Security
Founded1999; 25 years ago (1999)
Area served
Key people
Sumedh Thakar, President and CEO[1]
RevenueIncrease US$489.7 million (2022)[2]
Increase US$130.5 million (2022)[2]
Increase US$108 million (2022)[2]
Total assetsDecrease US$700.9 million (2022)[2]
Total equityDecrease US$289.1 million (2022)[2]
Number of employees
Increase 2,143[2]

Qualys, Inc. is an American technology firm based in Foster City, California, specializing in cloud security, compliance and related services.[3]

Qualys has over 10,300 customers in more than 130 countries, including a majority of the Forbes Global 100.[4] The company has strategic partnerships with major managed services providers and consulting organizations including BT, Dell SecureWorks, Fujitsu, IBM, NTT, Symantec, Verizon, and Wipro.[5]


Qualys has been described as "one of the earliest software-as-a-service security vendors."[6]

Philippe Courtot first invested in the company in 1999. He became CEO and board chair in 2001. In the announcement of the second round of financing, Courtot described Qualys as addressing a "mounting need for automatic detection of network vulnerabilities."[7][8]

The company launched QualysGuard in 2000, making Qualys one of the first entrants in the vulnerability management market.[9] This software could automatically scan corporate local area networks (LANs) for vulnerabilities and search for an available patch. The company subsequently added compliance, malware detection, and web application scanning to its platform.[10][11]

Qualys went public on the Nasdaq under the stock ticker QLYS on September 28, 2012, raising net proceeds of $87.5 million.[3][12]

Qualys then launched its Cloud Platform and lightweight cloud agent to continuously assess the security and compliance of organizations' global IT infrastructure and applications. The new Cloud Platform helped organizations assess and address the security and compliance of their IT assets in real-time, whether on-premises, cloud-based or mobile.[13][14][15]


Qualys provides cloud-based security and compliance solutions for businesses. As of March 2023, several categories of applications are listed on Qualys.com including asset management, vulnerability management, IT security, compliance, cloud-native Security, and web app security.[16]


Qualys won two Pwnie Awards in 2021, in the categories of "Best Privilege Escalation Bug" and "Most Under-Hyped Research".[17][18][19]

Qualys honored by SC Media as the winner for Best Vulnerability Management Solution in its 2020 Trust Awards.[20]

Qualys received 2019 Gartner Peer Insights Customers' Choice Award for Vulnerability Assessment.[21]

In 2017 Frost & Sullivan recognized Qualys with 2017 Global Vulnerability Management Market Leadership Award.[22]

Throughout its history Qualys has received a number of other awards.[23][24][25][26][27][28][29][30][vague]


  1. ^ Singh, Meghavi. "Qualys Board Names Sumedh Thakar as CEO". Yahoo Finance. Yahoo. Retrieved 30 April 2021.
  2. ^ a b c d e f "Qualys, Inc. 2022 Annual Report (Form 10-K)". U.S. Securities and Exchange Commission. 23 February 2023.
  3. ^ a b Kelly, Meghan (September 28, 2012). "Cloud security company Qualys up 18 percent on IPO after the markets close". VentureBeat. Retrieved 1 May 2014.
  4. ^ "Customer stories". Qualys, Inc. Retrieved 10 July 2018.
  5. ^ Find a Partner | Qualys, Inc
  6. ^ Rosenbaum, David (September 2011). "Cloud control: you want your cloud provider to share security risk. Your provider wants to limit its liability. The result is a negotiation. Here's what CFOs should know to gain the upper hand". CFO. Vol. 27, no. 7.
  7. ^ "Qualys, Inc. Secures $20M in Second Round Financing" (Press release). PR Newswire. April 10, 2001.
  8. ^ "Using your browser for security". Network World. IDG Communications, Inc. April 28, 2003.
  9. ^ "Cloud Security Vendor Qualys Ready for IPO". Sramana Mitra. 2012-06-12. Retrieved 2020-03-23.
  10. ^ Courtney, Marin (30 September 2002). "Tool scours networks for threats". Network Week.
  11. ^ Ewalt, David M. (26 May 2003). "Free Network Check". Information Week.
  12. ^ Lunden, Ingrid (28 September 2012). "Cloud Security Firm Qualys' IPO Opens At $12/Share, Raising $71.8M". TechCrunch. Retrieved 1 May 2014.
  13. ^ Jackson, Joab (23 April 2015). "Qualys Devises a Virtual Patch to Protect Against Vulnerabilities". Computerworld. Retrieved 18 December 2016.
  14. ^ Kovacs, Eduard (21 April 2015). "Qualys Web Application Firewall 2.0 Brings Virtual Patching, Event Response". Security Week. Retrieved 18 December 2016.
  15. ^ Barker, Ian (2015-04-21). "Cloud Agent Brings Enterprises Greater Security and Asset Control". BetaNews. Retrieved 18 December 2016.
  16. ^ "Qualys Cloud Platform Apps | Qualys, Inc". www.qualys.com. Retrieved 2023-03-27.
  17. ^ "Pwnie Award Winners 2021 – Pwnies". pwnies.com. Retrieved 2022-04-29.
  18. ^ "Heap-based buffer overflow in Sudo! – Pwnies". pwnies.com. Retrieved 2022-04-29.
  19. ^ "21 Nails – Pwnies". pwnies.com. Retrieved 2022-04-29.
  20. ^ Barth, Bradley (February 27, 2020). "The winners of the 2020 SC Awards Honored in the U.S." www.scmagazine.com. Archived from the original on 29 February 2020.
  21. ^ "Vulnerability Management Tools Reviews 2021 | Gartner Peer Insights".
  22. ^ "Frost & Sullivan Recognizes Qualys with 2017 Global Vulnerability Management Market Leadership Award". www.prnewswire.com (Press release). Qualys, Inc. Retrieved 2018-02-15.
  23. ^ "Awards". Retrieved 18 May 2014.
  24. ^ "The Sponsors" (PDF). SC Magazine. Archived from the original (PDF) on 22 September 2014. Retrieved 18 May 2014.
  25. ^ "Results 2014". SC Magazine Awards 2014 Europe. Archived from the original on 21 May 2014. Retrieved 18 May 2014.
  26. ^ "The 2010 Inc. 5000 List – JurInnov through Busey Group". Inc.com. Archived from the original on October 8, 2011.
  27. ^ "Qualys Ranks 26th in Silicon Valley / San Jose Business Journal's Largest Private Companies List" (Press release). Qualys, Inc. Archived from the original on December 2, 2012.
  28. ^ "Qualys Earns Highest Rating Possible of "Strong Positive" for Fifth Time in Gartner's MarketScope for Vulnerability Assessment". Marketwired. 17 September 2013. Archived from the original on October 6, 2021. Retrieved September 24, 2022.
  29. ^ "SANS Best of Awards". SANS Institute. Archived from the original on April 21, 2021. Retrieved September 24, 2022.
  30. ^ "Cyber Security Leaders 2017 – Cyber Defense Magazine". www.cyberdefensemagazine.com. 23 May 2017. Archived from the original on September 27, 2021. Retrieved 2022-09-24.

External links[edit]

  • Official website Edit this at Wikidata
  • Business data for Qualys: