“介质转换”展览在成当代艺术中心举办
 | |
| Formerly | Tenable Network Security, Inc. |
|---|---|
| Company type | Public |
| |
| Industry | Cybersecurity |
| Founded | September 16, 2002 |
| Founders |
|
| Headquarters | , U.S. |
Key people | |
| Products | Nessus |
| Revenue |  $799 million (2023) |
 ?$52 million (2023) | |
| ?$78 million (2023) | |
| Total assets | $1.61 billion (2023) |
| Total equity | $346 million (2023) |
| Owner | Amit Yoran (2.9%) |
Number of employees | 1,999, (2023) |
| Website | tenable |
| Footnotes / references [1] | |
| Nessus Vulnerability Scanner | |
|---|---|
 | |
| Developer(s) | Tenable, Inc. |
| Initial release | April 1998 |
| Stable release | 10.8.3
/ September 11, 2024[2] |
| Operating system | Linux, macOS and Microsoft Windows |
| Type | Vulnerability scanner |
| License | Proprietary; GPL (2.2.11 and earlier) |
| Website | tenable |
Tenable Holdings, Inc. is a cybersecurity company based in Columbia, Maryland. Its vulnerability scanner software Nessus, developed in 1998, is one of the most widely deployed vulnerability assessment solutions in the cybersecurity industry.[1] As of December 31, 2023, the company had approximately 44,000 customers, including 65% of the Fortune 500.[1]
History
[edit]Tenable was founded in September 2002 as Tenable Network Security, Inc. by Ron Gula, Jack Huffard, and Renaud Deraison.[3] In April 1998, at age 17, Deraison had created the Nessus vulnerability scanner software, which he folded into Tenable upon creation of the company. In 2002, Gula, who worked for the National Security Agency in the 1990s, sold a company he founded to Enterasys Networks and was looking to start another company. In 2004, Marcus J. Ranum was hired as chief security officer.[4] In October 2005, to generate income for the company and to stop empowering competition, Nessus became proprietary software, rather than open-source software via the GNU General Public License.[5][6] At that time, the software was forked; OpenVAS became the open-source software version of the program.
In September 2012, Tenable received $50 million in series A round funding from Accel Partners.[7][8] Also that month, the company entered into a partnership to provide cybersecurity services for the United States Intelligence Community, partnering with In-Q-Tel.[9] In 2015, Tenable received $250 million in a series B round led by Insight Partners.[10] In 2016, Gula resigned as CEO, becoming chairman.[11] Effective January 2017, Amit Yoran became CEO of the company[12] and later that year, the company was renamed Tenable, Inc.[1] In July 2018, the company became a public company via an initial public offering.[13]
In October 2022, the company launched Tenable One, an exposure management platform.[14] In January 2023, the company launched a venture capital division, with plans to invest up to $25 million.[15]
In December 2024, Yoran took a medical leave after a cancer diagnosis and CFO Stephen Vintz and COO Mark Thurmond were appointed interim co-CEOs; Yoran died in January 2025. Art Coviello was named chairman.[16][17]
In January 2025, its CEO, Amit Yoran, passed away after a battle with cancer at the age of 54.[18] The same month, the company acquires Vulcan Cyber.[19]
Acquisitions
[edit]| # | Year | Company | Price | Description of Assets |
|---|---|---|---|---|
| 1 | October 2016 | FlawCheck | Undisclosed | Cybersecurity company[20] |
| 2 | December 2019 | Indegy | $78 million | Israel-based operational technology company[21] |
| 3 | April 2021 | Alsid | $98 million | Software for finding security issues in Active Directory deployments[22] |
| 4 | October 2021 | Accurics | $160 million | cloud-native security for DevOps and security teams[23] |
| 5 | June 2022 | Bit Discovery | $45 million | Attack surface management software startup[24] |
| 6 | October 2023 | Ermetic | $240 million in cash and $25 million in restricted stock and RSUs | Israeli cloud-native application protection startup[25] |
| 7 | June 2024 | Eureka | Undisclosed | Data security posture management[26][27] |
| 8 | January 2025 | Vulcan Cyber | $150 million | Exposure Risk Management[28] |
References
[edit]- ^ a b c d "Tenable Holdings, Inc. 2023 Form 10-K Annual Report". U.S. Securities and Exchange Commission. February 28, 2024.
- ^ "Nessus 2024 Release Notes". Tenable Network Security.
- ^ Medhora, Narottam; Finkle, Jim (June 9, 2016). "Cybersecurity software maker Tenable CEO steps down". Reuters.
- ^ "Comment: Taking the Ethical High Road". InfoSecurity. April 19, 2012.
- ^ LeMay, Renai (October 7, 2005). "Nessus security tool closes its source". CNET.
- ^ Bradley, Tony (July 2, 2013). "In Their Own Words: Tenable Network Security CEO Ron Gula". Forbes.
- ^ Li, Ping (July 26, 2018). "Tenable's IPO". Accel Partners.
- ^ Ha, Anthony (September 5, 2012). "Network Security Company Tenable Raises A $50M Series A From Accel". TechCrunch.
- ^ Heath, Thomas (September 23, 2012). "Tenable enters partnership with In-Q-Tel". The Washington Post.
- ^ Finkle, Jim (November 10, 2015). "Tenable raises $250 million in record cyber funding round". Reuters.
- ^ Medhora, Narottam; Finkle, Jim (June 9, 2016). "Cybersecurity software maker Tenable CEO steps down". Reuters.
- ^ Hoover, Mark (December 15, 2016). "Tenable taps Amit Yoran as new chairman, CEO". Washington Technology.
- ^ Fazzini, Kate (July 26, 2018). "Cybersecurity firm Tenable closes up 31%". CNBC.
- ^ Waldman, Arielle (October 4, 2022). "Tenable shifts focus, launches exposure management platform". TechTarget.
- ^ Hooke, Matt (February 17, 2023). "Tenable launches $25 million venture capital fund". American City Business Journals.
- ^ "Cybersecurity firm Tenable's CEO Amit Yoran dies after battle with cancer". Reuters. 4 January 2025.
- ^ "Tenable Announces the Passing of Chairman and CEO Amit Yoran" (Press release). GlobeNewswire. January 4, 2025.
- ^ "Décès d'Amit Yoran, CEO de Tenable". Le Monde Informatique. January 6, 2025.
- ^ "Tenable rachète Vulcan Cyber pour 150 M$". Le Monde Informatique (in French). January 30, 2025.
- ^ HARANAS, MARK (October 26, 2016). "Tenable Network Security Acquires FlawCheck To Boost Security In Docker Containers". CRN.
- ^ Eichensehr, Morgan (December 2, 2019). "Columbia's Tenable makes $78 million acquisition". American City Business Journals.
- ^ "Tenable Completes Acquisition of Alsid and Launches Tenable.ad to Secure Active Directory Environments" (Press release). GlobeNewswire. April 27, 2021.
- ^ "Tenable Completes Acquisition of Accurics" (Press release). GlobeNewswire. October 4, 2021.
- ^ "Tenable Completes Acquisition of Bit Discovery and Announces Tenable.asm for External Attack Surface Management" (Press release). GlobeNewswire. June 6, 2022.
- ^ "Tenable Completes Acquisition of Ermetic" (Press release). GlobeNewswire. October 2, 2023.
- ^ ALSPACH, KYLE (June 6, 2024). "Tenable To Acquire Cloud Data Security Startup Eureka". CRN.
- ^ "Tenable acquires Israeli cyber startup Eureka for tens of millions of dollars". ctech. 2025-08-06. Retrieved 2025-08-06.
- ^ "Tenable rachète Vulcan Cyber pour 150 M$". Le Monde Informatique (in French). January 30, 2025.
External links
[edit]- 2002 establishments in Maryland
- 2018 initial public offerings
- American companies established in 2002
- Companies based in Columbia, Maryland
- Companies listed on the Nasdaq
- Computer security software companies
- Software companies based in Maryland
- Software companies established in 2002
- Technology companies of the United States