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Tenable

Exposure ManagementFounded 2002
Reviewed by Swet Parvadiya
Company data updated: October 2026

Acquisitions

Tenable Acquisitions

6

Major Deals Covered

$646M

Disclosed Deal Value

What are Tenable's biggest acquisitions?

Tenable's largest disclosed acquisition here is Ermetic for $240M in 2023. This page covers 6 major deals from 2019 to 2023, each with its price where disclosed and the reason behind it.

Major deals covered
6
Largest deal
Ermetic ($240M)
First deal
2019
Most recent
2023
CompanyYearPricePurpose
Ermetic2023$240.0MAcquired a leading cloud-native application protection platform (CNAPP) and cloud infrastructure entitlement management (CIEM) innovator.
Bit Discovery2022$44.5MAcquired premier external attack surface management (EASM) pioneer founded by Jeremiah Grossman and Robert Hansen.
Cymptom2022$25.0MAcquired automated attack path mapping technology to model adversarial movement across enterprise networks.
Accurics2021$160.0MAcquired cloud-native infrastructure-as-code (IaC) security pioneer to enable shift-left security enforcement for DevOps teams.
Alsid2021$98.0MAcquired French market leader in Active Directory (AD) security to neutralize identity-based attack vectors and credential theft.
Indegy2019$78.0MAcquired Israeli industrial cybersecurity company to protect industrial control systems (ICS) and operational technology (OT).
What companies has Tenable bought?
Major acquisitions by Tenable documented here include Ermetic (2023), Accurics (2021), Alsid (2021), Indegy (2019) and Bit Discovery (2022).
What is Tenable's most recent acquisition?
The most recent Tenable acquisition documented here is Ermetic, in 2023, for $240M.

Ermetic

2023

$240M

Why

Acquired a leading cloud-native application protection platform (CNAPP) and cloud infrastructure entitlement management (CIEM) innovator.

Impact

Integrated deep multi-cloud identity entitlement analysis and container workload posture into Tenable Cloud Security and Tenable One.

Outcome

Fully unified into Tenable Cloud Security, providing seamless contextual attack path analysis from code to multi-cloud runtimes.

Bit Discovery

2022

$45M

Why

Acquired premier external attack surface management (EASM) pioneer founded by Jeremiah Grossman and Robert Hansen.

Impact

Enabled Tenable to automatically discover, inventory, and classify unknown Internet-facing enterprise digital assets.

Outcome

Formed the technological bedrock of Tenable Attack Surface Management (ASM) within Tenable One.

Cymptom

2022

$25M

Why

Acquired automated attack path mapping technology to model adversarial movement across enterprise networks.

Impact

Empowered Tenable to visually chart how attackers chain isolated vulnerabilities and identity misconfigurations to compromise crown jewel assets.

Outcome

Directly embedded into Tenable One's Attack Path Analysis engine to prioritize critical remediation chokepoints.

Accurics

2021

$160M

Why

Acquired cloud-native infrastructure-as-code (IaC) security pioneer to enable shift-left security enforcement for DevOps teams.

Impact

Allowed developers to detect and fix cloud misconfigurations in Terraform, Kubernetes, and CloudFormation before runtime deployment.

Outcome

Branded as Tenable.cs and integrated into Tenable Cloud Security to bridge developer pipelines with runtime defense.

Alsid

2021

$98M

Why

Acquired French market leader in Active Directory (AD) security to neutralize identity-based attack vectors and credential theft.

Impact

Provided continuous, non-intrusive monitoring of domain controller configurations and Active Directory privilege escalation risks.

Outcome

Commercialized as Tenable Identity Exposure (formerly Tenable.ad), safeguarding enterprise identity architectures globally.

Indegy

2019

$78M

Why

Acquired Israeli industrial cybersecurity company to protect industrial control systems (ICS) and operational technology (OT).

Impact

Delivered device-level visibility and vulnerability management across PLCs, RTUs, and SCADA industrial environments.

Outcome

Transformed into Tenable OT Security, extending exposure management to manufacturing, utilities, and energy sectors.

Tenable's Growth & Acquisition Strategy

Tenable is executing a multi-faceted corporate growth strategy under CEO Amit Yoran: (1) Driving Tenable One Platform Upgrades: Migrating existing single-product vulnerability management customers onto the multi-module Tenable One platform, significantly expanding annual contract values (ACV); (2) Scaling Cloud Native Security (CNAPP) via Ermetic: Capitalizing on the rapid migration of corporate workloads to multi-cloud environments by deploying unified Cloud Security Posture Management (CSPM) and Cloud Infrastructure Entitlement Management (CIEM); (3) Expanding Operational Technology (OT) Protection: Securing critical infrastructure across energy, manufacturing, and healthcare sectors as industrial control systems converge with corporate IT networks; and (4) Generative AI SecOps with ExposureAI: Embedding generative AI capabilities into Tenable One to enable security leaders to query their attack surface in plain natural language and receive automated mitigation roadmaps.

How Tenable Makes Money

Tenable operates a subscription-based Software-as-a-Service (SaaS) and software licensing business model with predictable, high-visibility recurring revenue: (1) Tenable One Exposure Management Platform (~40% of new bookings), billed as an annual SaaS subscription scaled by the number of licensed assets across IT, cloud, identity, and OT environments; (2) Tenable Vulnerability Management (formerly Tenable.io) and Tenable Security Center (~45% of revenue), providing core vulnerability scanning, compliance auditing, and risk-based prioritization for corporate IT infrastructure; (3) Specialized Cloud and Identity Modules (~10% of revenue), securing public cloud entitlements (Ermetic technology) and Active Directory configurations (Alsid technology); and (4) Nessus Professional Licenses (~5% of revenue), sold as annual recurring desktop and server licenses to independent consultants, penetration testers, and small security teams. Tenable generates gross margins exceeding 77% and maintains high customer retention rates driven by deep integration into corporate risk compliance workflows.

Tenable Acquisitions FAQ

What is Tenable's general approach to M&A and acquisitions?

Tenable pursues a disciplined, strategic M&A approach focused on acquiring proprietary technologies, expanding customer distribution reach, and unlocking operational cost synergies rather than pursuing unselective scale.

What were some of the most transformative acquisitions completed by Tenable?

Transformative transactions in Tenable's history include pivotal mergers and acquisitions that secured key regional footprints, consolidated core market share, and brought proprietary software intellectual property in-house.

How does Tenable successfully integrate acquired companies?

Tenable deploys dedicated integration teams to harmonize core software stacks, align regulatory compliance systems, and unite company cultures while preserving entrepreneurial agility.

Does Tenable divest non-core corporate assets?

Yes, Tenable periodically evaluates its corporate portfolio, strategically divesting non-core or non-strategic assets to redeploy capital into high-margin core operational divisions.

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Content is for informational purposes only. Not financial advice. Data sourced from SEC filings, annual reports, and public records. See our full disclaimer and methodology.