Yes, Apple believes that 4.3 applies directly to what you are doing. To quote 4.3: If your app has different versions for specific locations, sports teams, universities, etc., consider submitting a single app and provide the variations using in-app purchase.Also, if your app is for use only by employees of each 'client' then consider using the Enterprise or B2B programs designed for such limited distribution.
Topic:
App Store Distribution & Marketing
SubTopic:
App Review
Tags: