LP profile · Angel
Cal Henderson
Cal Henderson is a angel headquartered in United States (North America). Ranked #387 in the 2026 Dealroom Power Law LP Ranking by realised power-law score across its venture commitments.
Historical Background
- Cal Henderson is the co-founder and former Chief Technology Officer of Slack, the business communication platform.
- After Slack's acquisition by Salesforce, Henderson transitioned to a role focused on advising and investing in software companies.
Source of Capital
- The principal source of investment capital is personal wealth accumulated from his role as a co-founder of Slack.
- Slack was acquired by Salesforce in 2021 for approximately $27.7 billion, a transaction that formed the basis of his capital for investment activities.
Major Events
- A key event was the 2021 acquisition of Slack by Salesforce, which marked a significant liquidity event for the co-founders.
- Following the acquisition, Henderson stepped down as CTO and began to focus on angel investing and advisory work.
Allocation Strategy
- Henderson operates as an angel investor, participating in early-stage funding rounds for technology startups.
- His investment focus appears to be on enterprise software, developer tools, and platforms related to the future of work.
- He has provided backing to venture funds, such as firstminute Capital, and directly invested in companies including Swarmia and Kadence.
Sources
- https://www.iamcal.com/about/
- https://www.weforum.org/stories/authors/cal-henderson/
- https://techcrunch.com/2023/06/12/slacks-cal-henderson-and-sir-richard-branson-back-firstminute-capitals-third-fund/
- https://www.techinasia.com/news/openai-exec-ex-slack-cto-back-finnish-saas-firms-11-5m-round
- https://kadence.co/news/kadence-announcment/
- https://en.wikipedia.org/wiki/Cal_Henderson