Stewart Butterfield (@stewart) — Twitter Score 235 out of 1000

Stewart Butterfield is a technology entrepreneur who co-founded Slack Technologies and Flickr, two products that reshaped workplace communication and online photo sharing. Stewart Butterfield's Twitter Score is 235 out of 1000 (an Excellent rating) as of September 2026, ranking #1,736 (top 0.5%) among 486,573 tracked accounts.

Stewart Butterfield also co-founded Ludicorp and Tiny Speck, the latter being the studio whose internal communications tooling became the foundation for Slack Technologies. Flickr itself originated as a photo-sharing feature within a gaming project before being acquired by Yahoo for $35 million in March 2005, according to TechCrunch, where Stewart Butterfield previously worked at Yahoo as general manager of Flickr. Stewart Butterfield previously served as CEO of Slack Technologies, guiding it through a direct stock listing filed on April 26, 2019, which Axios reported followed roughly $1.2 billion in private funding from backers including Accel, Andreessen Horowitz, Social Capital, SoftBank, Google Ventures, and Kleiner Perkins.

Stewart Butterfield was formerly affiliated with Salesforce, which announced on December 1, 2020 that it would acquire Slack Technologies for $27.7 billion in cash and stock. Axios reported in December 2022 that Stewart Butterfield would depart early the following month, succeeded as Slack CEO by Lidiane Jones. Stewart Butterfield's account has published 12,393 posts and has 133,485 followers as of September 2026. Stewart Butterfield has been mentioned by 612 accounts, with 1,905 total mentions.

Who follows Stewart Butterfield on X?

The accounts that follow Stewart Butterfield include 1,125 founders, 338 angel investors, 118 influencers and 56 VCs, among them Balaji, Brian Armstrong, Chris Dixon, Erik Voorhees, Marc Andreessen and Nikita Bier.