Investment Stage

Focus Areas

About Investor

Stewart Butterfield is an independent Angel Investor based in San Francisco, United States. He focuses on SaaS, Future of Work, enterprise technology, and AI companies at the Seed and Series A stages. His investment interests include scalable software, workplace collaboration tools, enterprise solutions, and intelligent technologies. Stewart typically invests between $50K and $1M, with a preferred ticket of approximately $250K. As a lead investor, he plays an active role in company evaluation, product strategy, financing decisions, and portfolio development. Through his independent angel investments, he supports founders building modern workplace and enterprise software products.