Tenable, Inc.

Tenable, Inc. is a cybersecurity company based in Columbia, Maryland. It is known as the creator of the vulnerability scanning software Nessus.[1]

Tenable, Inc.
Tenable Holdings, Inc.
FormerlyTenable Network Security, Inc.
  • Ron Gula
  • Jack Huffard
  • Renaud Deraison
Key people
Amit Yoran (CEO)
RevenueIncrease $440.2 Million(2020)
Number of employees


Tenable was founded in 2002 as Tenable Network Security, Inc. The original co-founders of Tenable were Ron Gula, Jack Huffard, and Renaud Deraison.[2] In 2012, Tenable received its first round of institutional funding in the form of $50 million from the venture capital firm Accel Partners.[3] In 2017, the company was renamed Tenable, Inc.[4] Its initial public offering (IPO) took place on the Nasdaq on July 26, 2018.[5]


In 2016, Tenable acquired the cybersecurity company FlawCheck.[6] In 2019, Tenable paid $78 million to acquire the Israel-based operational technology company Indegy Ltd.[7]

In April 2022, Tenable announced plans to acquire an attack surface management software startup, Bit Discovery, for $45 million in cash. The acquisition was expected to close in the second quarter of 2022. [8]


  1. ^ "About Tenable". Tenable. 2010-10-15. Retrieved 2020-09-25.
  2. ^ Reuters Staff (2016-06-09). "Cybersecurity software maker Tenable CEO steps down". Reuters. Retrieved 2020-09-25. {{cite news}}: |author= has generic name (help)
  3. ^ Ha, Anthony (2012-09-05). "Network Security Company Tenable Raises A $50M Series A From Accel". TechCrunch. Retrieved 2020-09-25.
  4. ^ "Tenable Holdings, Inc. S-1". Securities and Exchange Commission. Retrieved 2020-09-25.
  5. ^ Fazzini, Kate (2018-07-26). "Cybersecurity firm Tenable closes up 31%". CNBC. Retrieved 2020-09-25.
  6. ^ "Tenable acquires FlawCheck, to cater Docker security & DevOps support". Techseen. 2016-10-26. Retrieved 2021-03-04.
  7. ^ Eichensehr, Morgan (2019-12-02). "Columbia's Tenable makes $78 million acquisition". Baltimore Business Journal. Retrieved 2020-09-25.
  8. ^ "Tenable Shells Out $45 Million to Acquire Bit Discovery | SecurityWeek.Com". www.securityweek.com. Retrieved 2022-04-27.

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