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Stewart Butterfield Investment Portfolio

Stewart Butterfield is a Canadian entrepreneur and investor, best known as co‑founder of Flickr and co‑founder and former CEO of Slack Technologies. He has invested in and advised a number of private technology startups and led Slack through its acquisition by Salesforce in 2021.

Companies Invested In

Company Name
Sector
Investment Round Value
Funding Round
Announcement Date
PC:VIKTOViktor
Enterprise Software, AI & Data Platforms
$75.00M
Series A
May 20, 2026