Tenable Holdings, Inc.
Ticker: TENBTechnologyPrepackaged SoftwareThe business
Tenable Holdings, Inc. (NASDAQ: TENB) operates as the leading provider of exposure management solutions, a critical cybersecurity category that extends beyond traditional vulnerability management to assess and prioritize risk across entire attack surfaces. The company's website is www.tenable.com.
The company serves organizations globally through its Tenable One AI-powered exposure management platform, which unifies security visibility, insight, and action across modern attack surfaces including IT infrastructure, cloud environments, critical infrastructure, and artificial intelligence systems. Tenable One integrates multiple specialized products including Tenable Vulnerability Management, Tenable Cloud Security, Tenable Identity Exposure, Tenable Web App Scanning, Tenable Attack Surface Management, Tenable OT Security, and Tenable AI Exposure. The company also maintains its Nessus product line, one of the most widely deployed vulnerability assessment solutions in the cybersecurity industry since its introduction in 1998.
Tenable operates through a two-tiered channel model, selling enterprise platform offerings to distributors who supply resellers that serve end customers. The company serves over 40,000 customers across more than 170 countries, including approximately 65 percent of the Fortune 500 and approximately 50 percent of the Global 2000, spanning industries including manufacturing, energy, technology, finance, government, healthcare, and retail.
As of December 31, 2025, the company employed 1,995 people, with 949 located outside the United States. The company generated revenue of $999.4 million in 2025, with subscription revenue representing the primary growth driver. Tenable's competitive advantages include its extensive community of Nessus users, continuous feedback loops from Tenable Research cybersecurity experts, broad vulnerability coverage across diverse asset types, and an integrated technology ecosystem connecting third-party data sources and IT management systems. The company competes with established vendors including Qualys, Rapid7, CrowdStrike, Palo Alto Networks, and Wiz, as well as internally developed solutions.
- Sector
- Technology
- Industry
- Prepackaged Software
- HQ
- COLUMBIA, MD
- FY end
- 12-31
- CIK
- 1660280
- SIC
- 7372
Ownership
Who holds Tenable Holdings, Inc. — across funds, superinvestors and bonds · N-PORT 2026Q2 · 13F 2026-06-30
Top fund holders
| Fund | % of fund | Value |
|---|---|---|
| Columbia Seligman Technology and Information Fund SLMCX · Columbia Funds Series Trust II | 0.89% | $250.65M |
| VANGUARD TOTAL STOCK MARKET INDEX FUND VTI · VANGUARD INDEX FUNDS | 0.01% | $129.33M |
| Amplify Cybersecurity ETF Amplify ETF Trust | 4.20% | $108.89M |
| iShares Russell 2000 ETF IWM · iShares Trust | 0.13% | $108.87M |
| First Trust Nasdaq Cybersecurity ETF CIBR · First Trust Exchange-Traded Fund II | 0.70% | $96.39M |
Fund ownership counts N-PORT filers only, so it is a floor rather than a census — pensions, insurers and direct holders are not visible here, and the remainder is not “held by individuals”.
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