Mattermost Employee Directory
Software DevelopmentCalifornia, United States51-200 Employees
Mattermost has about 170 employees across 6 continents, most of them in North America. By country, the largest groups are United States Of America (57%), Canada (10%) and India (5%). Sales and Engineering make up 31% of the profiles with a known department. Mattermost's workforce spans 23 departments. Mattermost's workforce fell 15% between July 2025 and July 2026.