Developers can also be categorized by affiliation; in 2007, the top category was unknown while the top corporation was Red Hat with 12% of contributions, and known amateurs at 3.9%.
开发者还可以按从属关系来归类；在2007年，顶端类属是“不知名”而顶端公司是Red Hat，它占有12%的贡献，而知名业余爱好者占3.9%。