Rotorcraft manufacturers fall into two categories: 1. * those that can design, certify and manufacture new designs from scratch and 2. * those that can only manufacture extant designs under license. Boeing Vertol is an example of the first type and Kawasaki Heavy Industries, who license-produced Boeing Vertol designs for much of its recent history, is an example of the second.(This is a dynamic list and may never be able to satisfy particular standards for completeness. You can help by adding missing items with reliable sources.)