Vertical Flight Society (VFS) is tracking +700 eVTOL concepts from ~350 companies

The Vertical Flight Society (VFS), the world's leading non-profit organization working to advance vertical flight, announces today that the number of electric vertical takeoff and landing (eVTOL) aircraft concepts being tracked in its World eVTOL Aircraft Directory has now exceeded 700 designs from nearly 350 companies and innovators worldwide.

https://vtol.org/news/press-release-vfs-electric-vtol-directory-hits-700-concepts