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Here are 1-2 brief analogies for Tenable (TENB):

• It's like the FICO score for your company's cybersecurity risk profile, continuously assessing and prioritizing vulnerabilities across all digital assets.
• Think of it as the Carfax for your company's digital security, providing a comprehensive report on all potential weaknesses and misconfigurations across your IT, cloud, and operational technology environments.

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• Tenable.io: A cloud-delivered SaaS platform providing a risk-based view of traditional and modern attack surfaces.
• Tenable.cs: A cloud-native application platform for programmatically detecting and fixing cloud infrastructure misconfigurations.
• Tenable.io WAS: A service that provides scanning capabilities for modern web applications.
• Tenable.ep: A unified platform designed to help organizations identify, assess, and prioritize cyber risks across their entire attack surface.
• Tenable.ad: A solution specifically developed to secure Active Directory environments.
• Tenable.ot: An on-premises solution offering threat detection, mitigation, asset tracking, vulnerability management, and configuration control for OT environments.
• Tenable.sc: An on-premises solution that delivers a risk-based view of an organization's IT, security, and compliance posture.
• Nessus Professional: A comprehensive vulnerability assessment solution for identifying security vulnerabilities, configuration issues, and malware.
• Nessus Essentials: A version of Nessus that provides vulnerability and configuration assessment for a limited number of assets.

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Tenable (TENB) primarily sells its cyber exposure solutions to other companies and organizations (B2B).

Due to the confidential nature of client relationships in the cybersecurity industry and Tenable's highly diversified customer base, specific names of major customer companies are not publicly disclosed. Tenable's financial filings indicate that no single customer or small group of customers accounts for a material portion of their revenue.

However, Tenable serves a wide range of organizations globally across various industries. Its customer base can be broadly categorized as:

• Large enterprises seeking comprehensive vulnerability management, cyber risk platforms, and attack surface management solutions across their IT, cloud, and Active Directory environments.
• Government agencies and organizations requiring robust security solutions for critical infrastructure, data, and compliance.
• Small and medium-sized businesses (SMBs) utilizing their vulnerability assessment products like Nessus Professional and Nessus Essentials.
• Organizations operating in operational technology (OT) environments, such as industrial control systems and critical infrastructure, needing specialized threat detection and mitigation for their industrial networks.

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• Amazon.com, Inc. (AMZN)

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Steve Vintz Co-Chief Executive Officer & Chief Financial Officer

Steve Vintz joined Tenable in October 2014 as Chief Financial Officer and was appointed Co-Chief Executive Officer in April 2025, following the passing of former CEO Amit Yoran. He continues to serve as CFO while the company searches for a permanent replacement. During his tenure at Tenable, he played a pivotal role in leading the company's Series B funding round in 2015 and its initial public offering in 2018. Before joining Tenable, Mr. Vintz served as Executive Vice President and Chief Financial Officer of Vocus, Inc., a publicly-traded public relations software company, from 2001 to 2014. At Vocus, he was instrumental in positioning the company for 40 consecutive quarters of revenue growth and rapid expansion, including an IPO, a follow-on offering, and several acquisitions. Prior to Vocus, he was Vice President of Strategic Planning and Analysis at Snyder Communications, where he contributed to over 45 acquisitions and oversaw significant revenue growth. He also worked for Ernst & Young's entrepreneurial services/middle market group.

Mark Thurmond Co-Chief Executive Officer

Mark Thurmond was appointed Co-Chief Executive Officer of Tenable in April 2025, serving alongside Steve Vintz. He previously served as Tenable's Chief Operating Officer, a role he held since 2020. As co-CEO, he is responsible for overseeing all go-to-market activities, including sales, professional services, technical support, marketing, and customer success. Mr. Thurmond is described as an accomplished technology industry veteran with extensive experience in leading global sales and go-to-market strategies.

Vlad Korsunsky Chief Technology Officer

Vlad Korsunsky was appointed Chief Technology Officer and Managing Director of Tenable Israel in December 2025. In this role, he leads Tenable's global technology strategy, overseeing the company's technical vision and platform roadmap, with a particular focus on artificial intelligence (AI) and exposure management. Prior to joining Tenable, Mr. Korsunsky spent over a decade at Microsoft, where he most recently served as Corporate Vice President of Cloud and Enterprise Security. At Microsoft, he led teams responsible for building and operating multi-cloud security and enterprise AI security products, and he played a central role in shaping the company's AI security strategy. He brings over 25 years of experience in software engineering and cybersecurity leadership roles to Tenable.

Robert Huber Chief Security Officer

Robert Huber serves as Tenable's Chief Security Officer, where he is responsible for the company's global security strategy and leads Tenable Research. He possesses more than 25 years of cybersecurity experience spanning the financial, defense, critical infrastructure, and technology sectors. Before his tenure at Tenable, Mr. Huber was the Chief Security and Strategy Officer at Eastwind Networks. He also co-founded and served as president of Critical Intelligence, an operational technology (OT) threat intelligence and solutions provider, which was acquired by iSIGHT Partners in 2015. His professional background includes security roles at JPMorgan Chase & Co., the Lockheed Martin Computer Incident Response Team (CIRT), and Idaho National Laboratory. Additionally, Mr. Huber served for over 22 years in the U.S. Air Force and Air National Guard, providing offensive and defensive cyber capabilities.

Dino DiMarino Chief Revenue Officer

Dino DiMarino was appointed Chief Revenue Officer of Tenable in March 2026, succeeding Dave Feringa who retired. In this role, he oversees the company's global sales, partner ecosystems, and revenue operations. Mr. DiMarino brings over 20 years of experience in technology and cybersecurity leadership to Tenable. His previous roles include serving as Chief Revenue Officer at Snyk, Qualys, and Mimecast, and he also held the CEO position at AppViewX. Earlier in his career, he held senior executive positions at RSA Security and Dell EMC.

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The public company Tenable (TENB), a provider of cyber exposure solutions, faces several key risks inherent to the dynamic and competitive cybersecurity industry.

1. Intense Competition and Rapid Technological Obsolescence: Tenable operates in a highly competitive and rapidly evolving cybersecurity market. It faces competition from both established players and emerging vendors, including companies like Qualys, Rapid7, and CrowdStrike. This intense competition necessitates continuous innovation and significant investment in research and development to keep pace with evolving cyber threats and technological advancements, such as AI in security. Failure to adapt or for their solutions to be superseded by newer technologies, or for core offerings to be integrated into broader platforms by competitors, could lead to a loss of market share and hinder growth prospects.

2. Reputational Damage from Security Incidents: As a cybersecurity company, Tenable's business relies heavily on trust and its ability to secure digital environments. A significant risk is the potential for its own systems to be compromised or for its software to fail in preventing a major cyberattack on a customer's infrastructure. Such incidents could severely damage its reputation, erode customer trust, and lead to a decline in demand for its solutions. For instance, Tenable confirmed a data breach in September 2025 that exposed customer contact information from its Salesforce CRM instance, highlighting this vulnerability, even though its core vulnerability assessment products remained uncompromised.

3. Inability to Achieve and Sustain Profitability: Tenable has a history of net losses, which raises concerns about its long-term financial performance. The company reported net losses of $36.1 million in 2025, $36.3 million in 2024, and $78.3 million in 2023. These persistent GAAP losses, alongside factors like heavy reliance on stock-based compensation and strong competition, indicate that achieving and maintaining consistent profitability remains a challenge and a key financial risk for the company.

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The increasing maturity and integration of native security offerings from major cloud providers (AWS, Azure, GCP) represent a clear emerging threat. These cloud providers are continuously enhancing their built-in tools for vulnerability management, security posture management, and threat detection, which are deeply integrated into their respective cloud environments. As organizations increasingly adopt cloud-native strategies and seek to consolidate security vendors, there is a growing tendency to leverage these comprehensive, integrated cloud provider solutions. This trend could potentially displace specialized third-party cloud security solutions, such as Tenable.cs and Tenable.io WAS, by offering a unified and often more cost-effective approach for managing cloud-specific risks directly within the cloud provider's ecosystem.

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Tenable Holdings, Inc. (TENB) operates in several addressable markets related to cybersecurity and exposure management. The company estimates its total addressable market (TAM) to be approximately $50 billion, with a projected compound annual growth rate (CAGR) of 20% through 2027. This broad market encompasses cloud security, specialty assets (including OT, application security, identity, attack surface management, and governance, risk, and compliance), traditional vulnerability management, and third-party risk.

Addressable Market Sizes for Tenable's Main Products and Services:

• Exposure Management: The overall Exposure Management market, which Tenable's unified platform, Tenable One, addresses, is projected to grow from $2.79 billion in 2025 to $14.71 billion by 2032, with a CAGR of 26.8%.

• Vulnerability Management (Tenable.io, Tenable.sc, Nessus Professional/Essentials): The global vulnerability management market was valued at approximately $15.9 billion in 2023 and is projected to reach $34.7 billion by 2032, exhibiting a CAGR of over 9.2% from 2024 to 2032. Another estimate places the global security and vulnerability management market at $16.51 billion in 2024, with a projection to reach $24.47 billion by 2030, growing at a CAGR of 6.8% from 2025 to 2030. North America constituted approximately 39.8% of the global security and vulnerability management market in 2024.

• Cloud Security Posture Management (CSPM) (Tenable.cs): The global cloud security posture management market size was valued at $5.17 billion in 2024 and is anticipated to register a CAGR of 10.6% from 2025 to 2034. Another source indicates the market size at $6.43 billion in 2025, predicted to increase to $15.64 billion by 2034, expanding at a CAGR of 10.37% from 2025 to 2034. North America held a dominant position in the global market in 2024.

• Active Directory Security (Tenable.ad): The global Active Directory Security market size was valued at $1.85 billion in 2024 and is forecasted to reach $6.75 billion by 2033, growing at a robust CAGR of 15.2%. Another report estimates this market reached approximately $1.21 billion in 2024 and is projected to grow to $3.85 billion by 2033, expanding at a CAGR of approximately 13.8% between 2025 and 2033. North America commands the largest share of the global Active Directory Security market, at approximately 38% in 2024.

• Operational Technology (OT) Security (Tenable.ot): The global operational technology (OT) security market is projected to reach $50.29 billion by 2030, from $23.47 billion in 2025, at a CAGR of 16.5% from 2025 to 2030. Other estimates suggest the market will grow from $18.1 billion in 2023 to $107.1 billion by 2033, at a CAGR of 19.46%. North America dominated the market in 2022, accounting for over 41% of the global revenue.

• Web Application Security (Tenable.io WAS - part of Application Security): The global application security market, which includes web application security, was estimated at $10.65 billion in 2025 and is projected to reach $42.09 billion by 2033, growing at a CAGR of 18.8% from 2026 to 2033. Another source forecasts the global application security market size at $14.86 billion in 2026, expected to reach $43.28 billion by 2034, with a CAGR of 14.30% from 2026–2034. The web application security segment is anticipated to dominate the market share in 2026. North America accounted for the largest global revenue share in application security, at 39.4% in 2025.

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Expected Drivers of Future Revenue Growth for Tenable (TENB)

1. Expansion and Adoption of the Tenable One Exposure Management Platform with AI-Powered Capabilities: Tenable's flagship Tenable One Exposure Management Platform is a central pillar of its growth strategy. The company consistently highlights this platform as a significant driver of new sales and larger deals, aiming to provide a comprehensive view of an organization's cyber risk across various attack surfaces. A crucial aspect of this growth is the integration of advanced AI security and orchestration capabilities into the platform, which is expected to enhance threat detection, vulnerability management, and automated remediation, addressing the evolving threat landscape and expanding attack surface. The company has shown strong momentum with Tenable One, accounting for a significant portion of new business and expansion deals.
2. Growth in Enterprise Customer Acquisition and Expansion of Existing Customer Relationships: Tenable's ability to attract new enterprise platform customers and expand revenue from its existing customer base is a consistent driver of growth. The company reported adding hundreds of new enterprise platform customers and a significant number of new six-figure customers in recent quarters. Tenable's "land-and-expand" strategy, often leveraging its Nessus product as an entry point, is effective in driving customer growth and increasing average contract values over time as customers adopt more comprehensive enterprise solutions.
3. Strategic Acquisitions to Bolster Platform Capabilities and Market Share: Strategic mergers and acquisitions are a core component of Tenable's growth strategy, designed to expand its product roadmap and enhance its competitive position. Recent acquisitions, such as Vulcan Cyber in January 2025, are aimed at strengthening its exposure management platform with automated vulnerability remediation capabilities. Additionally, the acquisition of Apex Security in June 2025 is expected to further bolster Tenable's AI security capabilities and product offerings. These acquisitions contribute to expanding Tenable's offerings in critical areas like cloud security and AI.
4. Expansion into High-Growth Cloud Security and Operational Technology (OT) Security Markets: Tenable is actively expanding its offerings in the burgeoning cloud security and OT security markets, which are identified as significant market opportunities. The company's focus on cloud security is a response to the rapid growth and challenges organizations face in securing cloud environments. In the OT security space, Tenable has launched products like Tenable One for OT/IoT, providing unified exposure management across diverse industrial and IT environments to address increasing cyber-attacks on industrial networks and the digitalization of industrial plants.
5. International Market Expansion: Tenable is focused on expanding its global reach to drive revenue growth. The company has demonstrated international revenue growth and is strategically investing in its global footprint. An example of this is the establishment of a new operations center in Tel Aviv, intended to facilitate research and development and product innovation for key platforms like Tenable One and Tenable OT Security, while also recruiting top-tier talent. This international expansion leverages its global footprint to tap into growth markets worldwide.

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Share Repurchases

• Tenable's Board approved a $100 million share repurchase program in November 2023.
• In July 2025, the Board approved a $250 million increase to its share repurchase program, raising the total authorization to $550 million.
• During the full year 2025, Tenable repurchased 7.9 million shares for $247.5 million, and since November 2023 through the end of 2025, the company repurchased a total of 10.6 million shares for $362.4 million. Additionally, in February 2026, the Board approved an additional $150 million for its existing share repurchase program, increasing the total remaining authorization to $338 million.

Share Issuance

• Proceeds from stock issued in connection with the employee stock purchase plan amounted to $15.482 million in 2025 and $16.262 million in 2024.
• Proceeds from the exercise of stock options were $3.619 million in 2025 and $8.064 million in 2024.

Outbound Investments

• In January 2025, Tenable acquired Vulcan Cyber for approximately $147 million in cash and $3 million in restricted stock units to enhance its exposure management platform.
• In May 2025, Tenable acquired Apex Security for $105 million to strengthen its AI attack surface protection and expand AI security capabilities.

Capital Expenditures

• Tenable's capital expenditures for fiscal year 2024 were $4.247 million, and in 2023, they were $1.704 million.
• Annual capital expenditures are projected to be between $15 million and $20 million over 2025 and 2026, which includes capitalized software development costs.
• The company's capital expenditures are primarily focused on investing in its platform, including AI-driven security capabilities and remediation.