Slack is a cloud-based set of proprietary team collaboration tools and services, founded by Stewart Butterfield. Slack began as an internal tool used by their company, Tiny Speck, in the development of Glitch, a now defunct online game. The name is an acronym for "Searchable Log of All Conversation and Knowledge".

Cal Henderson
Co-Founder & CTO
Robert Frati
SVP, Sales & Customer Success
Allen Shim
Julie Liegl
Chief Marketing Officer
Tamar Yehoshua
Chief Product Officer
David Schellhase
General Counsel
Megan Cristina
Chief Privacy Officer
Nadia Rawlinson
Chief People Officer
Sean Catlett
Chief Security Officer
Clare Bergman
Executive Assistant to CEO
Bradley Armstrong
VP, Business & Corporate Development

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