It's several small teams. Servo is modular, and parts of it are useful outside of Servo. Other projects are using and maintaining and enhancing those module

It's several small teams. Servo is modular, and parts of it are useful outside of Servo. Other projects are using and maintaining and enhancing those modules. For example, IIRC dioxus uses many of the modules. Edit: see sister comment by the actual Dioxus guy, which is more accurate than mine!