Mattermost
An open-source, highly secure collaboration and messaging platform designed for technical teams and high-trust enterprise environments.

Strategic Overview
Founded in 2015 by Ian Tien and Corey Hulen, Mattermost is an open-source collaboration platform purpose-built for organizations that require strict security, data sovereignty, and compliance. Often utilized as a secure, self-hosted alternative to traditional SaaS messaging apps, Mattermost provides real-time messaging, workflow orchestration, and seamless integrations tailored for software development and IT teams. By offering flexible deployment options—including on-premises and private cloud—the platform empowers government agencies, defense contractors, and financial institutions to maintain complete ownership and control of their critical data without sacrificing modern collaboration features.
Investment Thesis & Key Pillars
Data Sovereignty & Security
Provides self-hosted and private cloud deployment options, ensuring organizations retain complete ownership and control over their communication data.
Developer-Centric Collaboration
Tailored specifically for technical teams, seamlessly integrating with DevOps tools, CI/CD pipelines, and incident response workflows.
Open-Source Extensibility
Built on an open-source core, allowing enterprises to deeply customize the platform, audit the code, and build proprietary integrations.
Strict Compliance
Designed to meet the rigorous regulatory and compliance requirements of high-trust industries, including defense, healthcare, and financial services.
Workflow Orchestration
Features structured playbooks and automated workflows to guide teams through complex processes, such as incident resolution and release management.