Tenable is a technology company.
Tenable has raised $300.0M across 2 funding rounds.
Key people at Tenable.
Tenable was founded in 2002 by Renaud Deraison (Co-Founder).
Tenable has raised $300.0M in total across 2 funding rounds.
Tenable was founded in 2002 by Renaud Deraison (Co-Founder).
Tenable has raised $300.0M in total across 2 funding rounds.
Tenable's investors include Accel, Andreessen Horowitz, CRV, Flex Capital, Foundation Capital, General Catalyst.
Key people at Tenable.
Tenable is a leading cybersecurity company specializing in exposure management, best known for its flagship vulnerability scanner Nessus, which helps organizations identify, prioritize, and remediate vulnerabilities across IT, cloud, OT, containers, and more.[1][2][3][5] Its core product, Tenable One, is an AI-powered platform providing unified visibility, predictive prioritization, attack path mapping, and automated remediation to manage cyber risk across diverse environments, serving over 44,000 customers including 65% of the Fortune 500.[1][2][3][5] Tenable solves the critical problem of fragmented security visibility in complex, hybrid attack surfaces, enabling faster risk reduction amid rising cyber threats, with strong growth evidenced by strategic acquisitions and analyst leadership in 2025 reports like Gartner Magic Quadrant and Forrester Wave.[3][5]
Tenable was founded in September 2002 in Columbia, Maryland, as Tenable Network Security by Ron Gula, Jack Huffard, and Renaud Deraison, all with deep cybersecurity expertise.[1][2][3][4] The idea stemmed from Deraison's creation of the open-source Nessus vulnerability scanner in 1998 at age 17, which became the world's most widely deployed tool and formed the company's foundation upon commercialization.[1][2][3] Early traction came from Nessus disrupting the emerging IT vulnerability management market; the company evolved with Tenable.io as the first cyber exposure platform, rebranded to Tenable, Inc. in 2017 under CEO Amit Yoran (after Gula shifted to chairman), and went public via IPO in 2018.[3][4] Pivotal moments include launching Tenable One in 2022 and a $25 million VC arm in 2023 for ecosystem investments.[3]
Tenable rides the exploding cyber exposure management trend, shifting from siloed vulnerability scanning to holistic attack surface management amid cloud-native shifts, OT convergence, AI-driven threats, and generative AI risks.[1][2][5] Timing is ideal as breaches from misconfigurations and unpatched exposures surge—market forces like regulatory compliance (e.g., zero trust, cloud compliance) and hybrid environments favor its unified platform, which quantifies business-impact risk to prioritize amid vulnerability overload.[2][4][5] Tenable influences the ecosystem through Nessus's ubiquity (basis for industry standards), acquisitions integrating cutting-edge tech (e.g., cloud-native security), VC investments fostering startups, and AI innovations amplifying security teams, positioning it as a force in reducing global cyber risk.[3][5]
Tenable's momentum—fueled by Tenable One's AI enhancements and 2025 acquisitions like Vulcan Cyber—positions it to dominate exposure management as AI threats and edge computing expand attack surfaces.[3][5] Expect deeper generative AI security, automated zero-trust orchestration, and VC-driven ecosystem growth amid rising regulations and breaches. Its evolution from Nessus pioneer to exposure architect will likely amplify influence, helping enterprises close risks faster in an increasingly hostile landscape, reinforcing its role as the go-to for cyber resilience.[1][5]
Tenable has raised $300.0M across 2 funding rounds. Most recently, it raised $250.0M Series B in November 2015.
| Date | Round | Lead Investors | Other Investors |
|---|---|---|---|
| Nov 1, 2015 | $250.0M Series B | Accel, Andreessen Horowitz, CRV, Flex Capital, Foundation Capital, General Catalyst | |
| Sep 1, 2012 | $50.0M Series A | Accel, Andreessen Horowitz, CRV, Flex Capital, Foundation Capital, General Catalyst |
