We’re on a mission to connect the world to what matters most.

We’re making the world safer and more productive by developing and delivering secure, open source collaboration software that is trusted, flexible and offers fast time-to-value.

We value being customer obsessed, taking ownership of our work, having high-impact, insisting on high standards, being self-aware, and earning trust.

We’re committed
to open source.

Mattermost is the world’s largest open source project for digital workplace technology. Collaboratively developed by over 500 contributors, the platform is available in 16 languages with a rich and broad ecosystem of integrations and enhancements.