Index Ventures

Expel, Inc. is a managed security software company that specializes in providing SOC-as-a-service, which includes security monitoring and response for cloud, hybrid, and on-premises environments. Founded in 2016 and based in Herndon, Virginia, Expel leverages existing security signals from its customers to enhance the value of their current security investments. By connecting to customer technology remotely via APIs rather than agents, Expel can initiate monitoring within hours, allowing internal teams to concentrate on their unique security priorities. The company aims to streamline and improve the security operations of organizations, enabling them to respond effectively to emerging threats.

Lithic offers a payments solution that enables users to create single-use virtual cards through a browser extension and an iOS application. Founded in 2014 and based in New York, the company focuses on enhancing privacy and security for online transactions. By providing virtual cards, Lithic allows both consumers and businesses to manage their spending while safeguarding sensitive financial information. The platform emphasizes the importance of online privacy, aiming to deliver a user-friendly experience that does not compromise convenience for security.

AttackIQ, Inc. is a cybersecurity company that provides a live remote testing platform designed to help organizations assess the effectiveness of their security measures against various cyber threats. Founded in 2013 and headquartered in San Diego, California, with additional offices in Australia, AttackIQ's platform integrates seamlessly into existing networks, offering visibility into security programs to identify coverage gaps, misconfigurations, and prioritize remediation efforts. The platform supports the MITRE ATT&CK Matrix, allowing users to validate security controls and enhance their defenses based on a comprehensive understanding of adversary tactics and techniques. Additionally, the "FireDrill" feature enables security teams to conduct exercises that maximize their capabilities and efficiency, ultimately improving their overall security posture.

Lithic offers a payments solution that enables users to create single-use virtual cards through a browser extension and an iOS application. Founded in 2014 and based in New York, the company focuses on enhancing privacy and security for online transactions. By providing virtual cards, Lithic allows both consumers and businesses to manage their spending while safeguarding sensitive financial information. The platform emphasizes the importance of online privacy, aiming to deliver a user-friendly experience that does not compromise convenience for security.

Lithic offers a payments solution that enables users to create single-use virtual cards through a browser extension and an iOS application. Founded in 2014 and based in New York, the company focuses on enhancing privacy and security for online transactions. By providing virtual cards, Lithic allows both consumers and businesses to manage their spending while safeguarding sensitive financial information. The platform emphasizes the importance of online privacy, aiming to deliver a user-friendly experience that does not compromise convenience for security.

Expel, Inc. is a managed security software company that specializes in providing SOC-as-a-service, which includes security monitoring and response for cloud, hybrid, and on-premises environments. Founded in 2016 and based in Herndon, Virginia, Expel leverages existing security signals from its customers to enhance the value of their current security investments. By connecting to customer technology remotely via APIs rather than agents, Expel can initiate monitoring within hours, allowing internal teams to concentrate on their unique security priorities. The company aims to streamline and improve the security operations of organizations, enabling them to respond effectively to emerging threats.

Tines Security Services Ltd. is a Dublin-based company that specializes in developing a cyber security automation platform. Established in 2018, Tines provides both cloud-based and on-premise solutions designed to automate workflow processes within security operations. The platform enables security teams to streamline various tasks by offering tools for workflow automation, API auto-completion, and crowd-sourced response mechanisms. Security analysts can create tailored automation stories to address complex workflows, thus enhancing efficiency and effectiveness in security management.

Expel, Inc. is a managed security software company that specializes in providing SOC-as-a-service, which includes security monitoring and response for cloud, hybrid, and on-premises environments. Founded in 2016 and based in Herndon, Virginia, Expel leverages existing security signals from its customers to enhance the value of their current security investments. By connecting to customer technology remotely via APIs rather than agents, Expel can initiate monitoring within hours, allowing internal teams to concentrate on their unique security priorities. The company aims to streamline and improve the security operations of organizations, enabling them to respond effectively to emerging threats.

AttackIQ, Inc. is a cybersecurity company that provides a live remote testing platform designed to help organizations assess the effectiveness of their security measures against various cyber threats. Founded in 2013 and headquartered in San Diego, California, with additional offices in Australia, AttackIQ's platform integrates seamlessly into existing networks, offering visibility into security programs to identify coverage gaps, misconfigurations, and prioritize remediation efforts. The platform supports the MITRE ATT&CK Matrix, allowing users to validate security controls and enhance their defenses based on a comprehensive understanding of adversary tactics and techniques. Additionally, the "FireDrill" feature enables security teams to conduct exercises that maximize their capabilities and efficiency, ultimately improving their overall security posture.

Castle provides advanced fraud detection and prevention solutions tailored for online businesses of all sizes. By offering technology that was once exclusive to banks and large financial institutions, Castle enables various customer-facing applications—including e-commerce platforms, mobile apps, and cryptocurrency services—to safeguard user accounts against unauthorized access. The company's APIs facilitate account hijack protection by monitoring user behavior through device fingerprinting, keystroke analysis, browsing history, and numerous other indicators. In the event of suspicious activity, both administrators and account owners receive immediate alerts, empowering them to respond swiftly and effectively to potential threats.

Gremlin Inc. is a San Jose, California-based company founded in 2016 that specializes in chaos engineering, offering a platform designed to enhance system resilience by simulating real outages. The company's service, known as Failure as a Service, allows clients to safely and securely inject failure scenarios into their systems, helping them identify vulnerabilities before they lead to actual problems. With a growing library of simulated attacks, Gremlin enables organizations to proactively detect issues such as resource exhaustion and unreliable network behavior. This approach not only helps in recognizing potential faults but also strengthens clients' defenses against future outages, ultimately preserving customer trust and reducing downtime-related costs.

Duo Security, Inc. is a provider of cloud-based access security and multi-factor authentication solutions aimed at protecting organizations from data breaches and unauthorized access. Founded in 2009 and headquartered in Ann Arbor, Michigan, the company offers a range of services including multi-factor authentication, adaptive authentication, and unified endpoint visibility, allowing users to verify identities and monitor devices from a centralized dashboard. Duo Security also supports secure remote access and single sign-on for both cloud and on-premises applications, catering to industries such as education, healthcare, finance, legal, retail, and technology. Additionally, the company provides a managed service provider program to help partners safeguard their clients against data breaches. With offices in San Mateo, California, Austin, Texas, and London, United Kingdom, Duo Security has established itself as a key player in the field of internet security.

Lithic offers a payments solution that enables users to create single-use virtual cards through a browser extension and an iOS application. Founded in 2014 and based in New York, the company focuses on enhancing privacy and security for online transactions. By providing virtual cards, Lithic allows both consumers and businesses to manage their spending while safeguarding sensitive financial information. The platform emphasizes the importance of online privacy, aiming to deliver a user-friendly experience that does not compromise convenience for security.

AttackIQ, Inc. is a cybersecurity company that provides a live remote testing platform designed to help organizations assess the effectiveness of their security measures against various cyber threats. Founded in 2013 and headquartered in San Diego, California, with additional offices in Australia, AttackIQ's platform integrates seamlessly into existing networks, offering visibility into security programs to identify coverage gaps, misconfigurations, and prioritize remediation efforts. The platform supports the MITRE ATT&CK Matrix, allowing users to validate security controls and enhance their defenses based on a comprehensive understanding of adversary tactics and techniques. Additionally, the "FireDrill" feature enables security teams to conduct exercises that maximize their capabilities and efficiency, ultimately improving their overall security posture.

Lacoon Security Ltd. specializes in mobile cybersecurity solutions, offering a Mobile Threat Management Platform designed to help enterprises manage the risks associated with bring your own device (BYOD) policies. Founded in 2011 and based in Ramat-Gan, Israel, Lacoon's platform protects corporate assets from various mobile cyber threats, including malicious applications, targeted network attacks, and advanced persistent threats. It supports both iOS and Android devices, providing a centralized solution that integrates seamlessly with existing infrastructure to deliver real-time security and intelligence. The platform features a patented Behavioral Risk Engine that identifies device, application, and network threats, allowing organizations to quantify the risks associated with BYOD. Lacoon Security operates as a subsidiary of Check Point Software Technologies Ltd., enhancing its capabilities with expertise from professionals with backgrounds in mobile cybersecurity and defense.

Koality is a continuous integration platform designed to enhance software development processes by efficiently managing test suites. The platform automatically parallelizes tests across available virtual machines, which helps prevent broken builds and improves overall testing reliability. By working behind firewalls, Koality ensures that engineering organizations can maintain security while benefiting from its capabilities. This approach not only streamlines testing but also eliminates non-deterministic test results, providing a robust solution for teams seeking to enhance their development efficiency.

Perlex City is an online game filled with puzzles and ciphers. The game blurs the boundaries between fiction and reality, allowing players to interrogate suspects over the phone, search police files for evidence, decipher coded emails and check newspapers for clues, all while working with tens of thousands of players around the world.