Date
Uses tagged sets images of faces to train Face ID
Developed the 3d scanning technology behind Face ID before being acquired by Apple in 2013
Facial recognition company, also acquired by Apple
Most companies are secretive about who they outsource data annotation to, but it's impossible to find a company that was involved in data annotation for Face ID. It's possible that for Face ID, collecting and annotating the data was handled without an outside company being involved. Some of the data probably came from the companies Apple acquired to make Face ID in the first place.
Maybe has been invovled, makes image datasets and has worked with other big tech companies