Decibel Partners

Decibel Partners is an independent venture capital firm founded in 2019 and based in Palo Alto, California. The firm focuses on providing resources and support to entrepreneurs in the technology sector, aiming to foster innovation and growth within this dynamic field. By leveraging its expertise and network, Decibel Partners assists startups in navigating the challenges of early-stage development and scaling their operations.

Sudip Chakrabarti

Partner

Alessio Fanelli

Partner

Jéssica Leão

Partner

Dan Nguyen-Huu

Partner

Jon Sakoda

Founding Partner

Past deals in Cyber Security

Push Security

Series B in 2025
Push Security is a cybersecurity software company focused on preventing identity-based attacks. Its browser-based agent monitors employee interactions with identities, generating unique telemetry data that can be accessed through the Push platform or integrated with existing security systems. This enables security teams to oversee and secure their identity attack surface, effectively detecting and mitigating threats such as advanced phishing techniques. The platform employs controls to block, warn, or guide employees in real-time, aiming to prevent breaches before they occur. Additionally, Push Security's automation features streamline the implementation of essential security measures, allowing organizations to enhance their defenses efficiently and affordably, particularly benefiting small to medium-sized enterprises.

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 company focused on helping enterprises defend against advanced attacks through a range of products, services, and training solutions. The company specializes in developing cybersecurity software that protects operational data and assists organizations in shutting down attack vectors. SpecterOps offers comprehensive program development, assessment services, and operational support, ensuring transparency and instilling confidence in the safety of critical assets and data. Additionally, the company provides advanced training on adversary tactics, techniques, and procedures, contributing to the overall improvement of security operations programs. SpecterOps is also involved in various industry initiatives aimed at enhancing cybersecurity practices.

Dreadnode

Series A in 2025
Dreadnode is a specialized company that operates in the field of offensive machine learning, primarily focusing on cybersecurity. It offers a range of services aimed at conducting research, evaluations, and creating cyber ranges to enhance the effectiveness of machine learning applications against AI systems. Dreadnode develops assessment methodologies and tools that facilitate offensive engagements, helping clients identify and mitigate vulnerabilities in their systems. By providing these services, the company enables users to maintain their systems in a risk-free environment, thereby strengthening their cybersecurity posture.

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
Censys, Inc. is a technology company that specializes in internet scanning and asset identification solutions. Founded in 2017 and based in Ann Arbor, Michigan, Censys offers an internet intelligence platform that enables organizations to gain a comprehensive real-time view of global networks and devices. Its primary product, Censys, functions as an internet device search engine, allowing users to locate various internet-connected devices, including computers, servers, and smart devices. The platform is utilized for attack surface management, threat hunting, and exposure management, helping businesses discover unknown assets, monitor remote workforces, and identify potential threats. Through its extensive dataset, Censys enhances visibility into vulnerabilities and provides insights into internet-exposed infrastructure, supporting organizations in their security efforts.

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 company focused on helping enterprises defend against advanced attacks through a range of products, services, and training solutions. The company specializes in developing cybersecurity software that protects operational data and assists organizations in shutting down attack vectors. SpecterOps offers comprehensive program development, assessment services, and operational support, ensuring transparency and instilling confidence in the safety of critical assets and data. Additionally, the company provides advanced training on adversary tactics, techniques, and procedures, contributing to the overall improvement of security operations programs. SpecterOps is also involved in various industry initiatives aimed at enhancing cybersecurity practices.

Push Security

Series A in 2023
Push Security is a cybersecurity software company focused on preventing identity-based attacks. Its browser-based agent monitors employee interactions with identities, generating unique telemetry data that can be accessed through the Push platform or integrated with existing security systems. This enables security teams to oversee and secure their identity attack surface, effectively detecting and mitigating threats such as advanced phishing techniques. The platform employs controls to block, warn, or guide employees in real-time, aiming to prevent breaches before they occur. Additionally, Push Security's automation features streamline the implementation of essential security measures, allowing organizations to enhance their defenses efficiently and affordably, particularly benefiting small to medium-sized enterprises.

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 preventing identity-based attacks. Its browser-based agent monitors employee interactions with identities, generating unique telemetry data that can be accessed through the Push platform or integrated with existing security systems. This enables security teams to oversee and secure their identity attack surface, effectively detecting and mitigating threats such as advanced phishing techniques. The platform employs controls to block, warn, or guide employees in real-time, aiming to prevent breaches before they occur. Additionally, Push Security's automation features streamline the implementation of essential security measures, allowing organizations to enhance their defenses efficiently and affordably, particularly benefiting small to medium-sized enterprises.

Censys

Series B in 2022
Censys, Inc. is a technology company that specializes in internet scanning and asset identification solutions. Founded in 2017 and based in Ann Arbor, Michigan, Censys offers an internet intelligence platform that enables organizations to gain a comprehensive real-time view of global networks and devices. Its primary product, Censys, functions as an internet device search engine, allowing users to locate various internet-connected devices, including computers, servers, and smart devices. The platform is utilized for attack surface management, threat hunting, and exposure management, helping businesses discover unknown assets, monitor remote workforces, and identify potential threats. Through its extensive dataset, Censys enhances visibility into vulnerabilities and provides insights into internet-exposed infrastructure, supporting organizations in their security efforts.

Censys

Series A in 2020
Censys, Inc. is a technology company that specializes in internet scanning and asset identification solutions. Founded in 2017 and based in Ann Arbor, Michigan, Censys offers an internet intelligence platform that enables organizations to gain a comprehensive real-time view of global networks and devices. Its primary product, Censys, functions as an internet device search engine, allowing users to locate various internet-connected devices, including computers, servers, and smart devices. The platform is utilized for attack surface management, threat hunting, and exposure management, helping businesses discover unknown assets, monitor remote workforces, and identify potential threats. Through its extensive dataset, Censys enhances visibility into vulnerabilities and provides insights into internet-exposed infrastructure, supporting organizations in their security efforts.

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
Censys, Inc. is a technology company that specializes in internet scanning and asset identification solutions. Founded in 2017 and based in Ann Arbor, Michigan, Censys offers an internet intelligence platform that enables organizations to gain a comprehensive real-time view of global networks and devices. Its primary product, Censys, functions as an internet device search engine, allowing users to locate various internet-connected devices, including computers, servers, and smart devices. The platform is utilized for attack surface management, threat hunting, and exposure management, helping businesses discover unknown assets, monitor remote workforces, and identify potential threats. Through its extensive dataset, Censys enhances visibility into vulnerabilities and provides insights into internet-exposed infrastructure, supporting organizations in their security efforts.

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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