Tenable®, Inc. is the Cyber Exposure company that provides continuous network monitoring and vulnerability management solutions. 

Tenable empowers all organizations to understand and reduce their cybersecurity risk across the full range of modern computing assets. 

Tenable was founded in 2002 by security product innovators Ron Gula, Renaud Deraison and Jack Huffard. The company is based in Columbia, Maryland with an international headquarter in Dublin, Ireland. It also has operations in the Middle East, Japan, and Latin America. Tenable, Inc. was formerly known as Tenable Network Security, Inc. and changed its name to Tenable, Inc. in 2017.


Tenable offers SecurityCenter Continuous View that allows the comprehensive and integrated view of network health; Nessus, a vulnerability assessment and management solution for detecting and assessing network data; and Passive Vulnerability Scanner that eliminates network blind spots by monitoring network traffic in real-time to discover active assets, identify cloud applications, and detect anomalous activity.


Tenable serves Fortune Global 500 companies across education, finance, healthcare, PCI, and energy sectors, as well as the U.S. Department of Defense and various government agencies worldwide. 


Tenable also offers Tenable.io platform, a cloud-based solution that delivers new and enhanced capabilities to enable organizations to understand and reduce their cyber risk across a range of traditional and modern assets; and Cyber Exposure, an ecosystem with a series of technology integrations to help organizations manage and reduce cyber risk across the attack surface and the cyber exposure lifecycle.



  • Year founded: 2002
  • Funding Info: $309.8M over 4 Rounds (Last Funding Type: Secondary Market)- Tenable has also acquired FlawCheck on Oct 26, 2016 to date!
  • Yearly Revenue: $354.6M (2019)
  • Employee Size: 501-1000
  • Business Valuation: IPO valuation of $2.1B as of Jul 26, 2018
  • City/Town: Columbia
  • State: Maryland
  • Country: United States
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