Most importantly:

It’s not a typical consultancy and much of its success comes from how different it is: “We are a worker-owned cooperative,” explains Brian Kardell, [...] “We have a flat structure. There are no bosses, there are no shareholders. It’s our lives, our company and we want to work on something that is valuable.”

They also currently have open applications for a very nice paid mentorship program: https://www.igalia.com/coding-experience/