This website’s domain name comes from my legal first name, Sytse, but please call me Sid.

I love to build things-from code to companies—and support innovative projects that have the potential to improve the world around us. I believe in helping brilliant, passionate people find new ways to spark transformational change.

My wife and partner Karen Sijbrandij and I are both originally from the Netherlands and now make the San Francisco Bay Area our home.

Here you’ll find more information about GitLab, as well as our projects, philanthropic ventures, and new ideas I’m excited about.