Ask HN: Are there any successful tech non-profits?

I'm curious if there are any technology based non-profits that are cater to direct consumers where their primary business is a website/web business. The biggest one I can think of is Wikipedia; they are successful and have a very popular set of websites. Mozilla is another successful non-profit, but its primary business is not a website but a web application (Firefox). I'm not sure if Patreon is a non-profit or community benefit corporation. Do you know any others?