Cal Henderson

Cal Henderson

Headliner

Built Slack from zero to $27.7B | Now advising the next wave of software founders

🇺🇸United States4 talks · 2 events · 2 countries1 with video

About

Cal Henderson built Slack from a side project into a $27. 7 billion company.

As co-founder and CTO for 15 years, he led the engineering, research, and design teams through IPO on the NYSE and Salesforce's acquisition in 2021. Cal now advises and invests in early-stage software companies, bringing hard-won lessons from scaling one of the decade's defining workplace tools.

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Cal Henderson at Slush 2026

Slush🇫🇮 HelsinkiNov 2026

Cal Henderson at Slush 2024

Slush 2024🇫🇮 HelsinkiNov 2024

Cal Henderson at Dmexco 2016

Dmexco🇩🇪 Cologne2016

At a Glance

4
Talks
2
Events
10+
Years Speaking

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