Tenable Holdings, Inc. engages in the development of security software solutions. It offers Cyber Exposure which is a discipline for managing and measuring cybersecurity risk in the digital era. Read More Its products include tenable.io, tenable.sc, tenable.ot, and nessus professional. The firm delivers solutions in the field of application security, cloud security, compliance, energy, finance, healthcare, and retail. The company was founded by John C. Huffard, Jr. and Renaud M. Deraison in 2002 and is headquartered in Columbia, MD.