Tenable is a cybersecurity company based in Columbia, Maryland. It is known as the creator of the vulnerability scanning software Nessus .
Tenable was founded in 2002 as Tenable Network Security, Inc. The original co-founders of Tenable were Ron Gula, Jack Huffard, and Renaud Deraison. In 2012, Tenable received its first round of institutional funding in the form of $50 million from the venture capital firm Accel Partners. In 2017, the company was renamed Tenable, Inc. Its initial public offering (IPO) took place on the Nasdaq on July 26, 2018
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