Stewart Butterfield (Slack)

Stewart Butterfield is a Canadian entrepreneur best known as the co-founder of Slack, a popular communication platform designed for teams. Launched in 2013, Slack allows users to collaborate through messaging, file sharing, and integration with other tools, streamlining workplace communication. Before Slack, Butterfield co-founded Flickr, a widely used photo-sharing site. He is recognized for his innovative approach to technology and his focus on enhancing productivity in the workplace. Under his leadership, Slack became a significant player in the tech industry, eventually going public in 2019 and being acquired by Salesforce in 2021.