Decibel Partners

Decibel Partners is an independent venture capital firm based in Palo Alto, California, established in 2019. The firm invests in technology companies and provides resources to entrepreneurs to support growth and development.

Sudip Chakrabarti

Partner

Alessio Fanelli

Partner

Dan Nguyen-Huu

Partner

Jon Sakoda

Founder and Managing Partner

Past deals in Cyber Security

Push Security

Series B in 2025
Push Security is a cybersecurity software company focused on protecting identities and preventing identity-based attacks. It provides a browser-based agent that observes how employees use and create identities, generating telemetry that can be viewed in the Push platform or forwarded to SIEM or SOAR systems. The software enables security teams to monitor and secure the entire identity attack surface and detect and block identity-based threats, including advanced phishing techniques. It enforces in-browser controls to block, warn, or guide employees to prevent breaches. The solution also offers clear, step-by-step guidance on implementing essential security controls and uses automation to accelerate deployment, helping organizations improve security without adding costly tools or complex deployments.

Prowler

Seed Round in 2025
Prowler is a leading provider of open-source cloud security solutions. It offers a comprehensive platform that delivers real-time, actionable insights into an organization's cloud security posture. The platform provides a holistic view of cloud infrastructure, enabling users to identify and address misconfigurations swiftly. Prowler is trusted by organizations of all sizes and is used daily to bolster cloud security confidence. It is available for free, with both sign-up and download options.

Knocknoc

Seed Round in 2025
Knocknoc is a cybersecurity firm that develops a cloud-based platform to safeguard network applications. Its key product is a web interface that enables users and administrators to manage access permissions, including allowing or denying IP addresses, and employs multi-factor authentication to enhance security. The platform aims to provide clients with clear visibility over authenticated users, reduce potential attack surfaces, and prevent brute force attacks.

SpecterOps

Series B in 2025
SpecterOps is a cybersecurity firm offering products, services, and training to help enterprises safeguard against sophisticated attacks. They assist businesses in closing attack vectors, evaluating and enhancing security operations programs, providing advanced adversary Tactics, Techniques, and Procedures (TTPs) training, and supporting industry initiatives.

Dreadnode

Series A in 2025
Dreadnode specializes in developing offensive machine learning platforms tailored for cybersecurity. Its primary focus is research, evaluations, and cyber ranges to support machine learning in the cybersecurity domain.

Dropzone AI

Series A in 2024
Dropzone AI specializes in developing an intelligent augmentation platform that deploys pre-trained autonomous AI security agents. These agents collaborate with human analysts, investigating a vast number of security alerts, mimicking the techniques of top analysts. This allows human analysts to focus on critical, high-value tasks and genuine threats, rather than being overwhelmed by routine alert investigation.

Prowler

Seed Round in 2024
Prowler is a leading provider of open-source cloud security solutions. It offers a comprehensive platform that delivers real-time, actionable insights into an organization's cloud security posture. The platform provides a holistic view of cloud infrastructure, enabling users to identify and address misconfigurations swiftly. Prowler is trusted by organizations of all sizes and is used daily to bolster cloud security confidence. It is available for free, with both sign-up and download options.

Censys

Series C in 2023
Founded in 2017, Censys offers an internet intelligence platform that provides real-time visibility into global networks and devices. Its solution enables businesses to discover unknown assets, monitor remote workforce, identify threat actors, and manage attack surfaces proactively.

Dropzone AI

Seed Round in 2023
Dropzone AI specializes in developing an intelligent augmentation platform that deploys pre-trained autonomous AI security agents. These agents collaborate with human analysts, investigating a vast number of security alerts, mimicking the techniques of top analysts. This allows human analysts to focus on critical, high-value tasks and genuine threats, rather than being overwhelmed by routine alert investigation.

SpecterOps

Series A in 2023
SpecterOps is a cybersecurity firm offering products, services, and training to help enterprises safeguard against sophisticated attacks. They assist businesses in closing attack vectors, evaluating and enhancing security operations programs, providing advanced adversary Tactics, Techniques, and Procedures (TTPs) training, and supporting industry initiatives.

Push Security

Series A in 2023
Push Security is a cybersecurity software company focused on protecting identities and preventing identity-based attacks. It provides a browser-based agent that observes how employees use and create identities, generating telemetry that can be viewed in the Push platform or forwarded to SIEM or SOAR systems. The software enables security teams to monitor and secure the entire identity attack surface and detect and block identity-based threats, including advanced phishing techniques. It enforces in-browser controls to block, warn, or guide employees to prevent breaches. The solution also offers clear, step-by-step guidance on implementing essential security controls and uses automation to accelerate deployment, helping organizations improve security without adding costly tools or complex deployments.

Pangea

Series B in 2022
Pangea is a developer of security APIs that offers a comprehensive portfolio of security services tailored for application builders. The company provides a single platform that simplifies the integration of security into cloud and mobile applications. Pangea's services are designed to be globally accessible while maintaining regional intelligence, making them suitable for diverse markets. Available on major cloud platforms such as AWS and GCP, Pangea enables clients—including app developers, SaaS providers, and security operations teams—to efficiently create secure and compliant user experiences. The company aims to make security accessible to all developers, eliminating the need for extensive security expertise.

Push Security

Seed Round in 2022
Push Security is a cybersecurity software company focused on protecting identities and preventing identity-based attacks. It provides a browser-based agent that observes how employees use and create identities, generating telemetry that can be viewed in the Push platform or forwarded to SIEM or SOAR systems. The software enables security teams to monitor and secure the entire identity attack surface and detect and block identity-based threats, including advanced phishing techniques. It enforces in-browser controls to block, warn, or guide employees to prevent breaches. The solution also offers clear, step-by-step guidance on implementing essential security controls and uses automation to accelerate deployment, helping organizations improve security without adding costly tools or complex deployments.

Censys

Series B in 2022
Founded in 2017, Censys offers an internet intelligence platform that provides real-time visibility into global networks and devices. Its solution enables businesses to discover unknown assets, monitor remote workforce, identify threat actors, and manage attack surfaces proactively.

Censys

Series A in 2020
Founded in 2017, Censys offers an internet intelligence platform that provides real-time visibility into global networks and devices. Its solution enables businesses to discover unknown assets, monitor remote workforce, identify threat actors, and manage attack surfaces proactively.

Cmd

Series B in 2019
Cmd is a developer of a server security platform focused on protecting production environments in Linux. The platform provides organizations with real-time visibility into user actions and customizable controls, enabling the pre-execution blocking of potentially harmful commands without human intervention. This proactive approach helps organizations address common security hygiene issues and mitigate the risk of breaches, allowing them to effectively manage user behavior in cloud-first environments. Cmd's solution facilitates collaboration between DevOps and SecOps teams, enhancing overall security while minimizing disruptions to business operations.

Censys

Seed Round in 2018
Founded in 2017, Censys offers an internet intelligence platform that provides real-time visibility into global networks and devices. Its solution enables businesses to discover unknown assets, monitor remote workforce, identify threat actors, and manage attack surfaces proactively.

Pixee

Pixee is a company that specializes in software security solutions by providing a virtual security engineer that enhances code safety and quality. Its platform automatically identifies vulnerabilities within source code and delivers immediate fixes and remediation, operating seamlessly within software development workflows. By functioning like an additional security expert on a development team, Pixee allows engineers to focus on essential tasks instead of code vulnerabilities. The service integrates conveniently through pull requests, enabling developers to improve code performance and address issues without disrupting their productivity or development environment.
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