About

Tenable, Inc., a cybersecurity company headquartered in Columbia, Maryland, was founded on September 16, 2002. As a public company, it reported $799 million in revenue in 2023. Tenable is widely recognized for its flagship product, Nessus, a vulnerability scanner software developed in 1998, which stands as one of the most extensively deployed vulnerability assessment solutions across the cybersecurity industry. By December 31, 2023, Tenable had amassed approximately 44,000 customers, notably including 65% of the Fortune 500, solidifying its significant market presence.