Well since Mike & Maaike were recently bought by a company called GOOGLE, I would say they have made it.
They are also proof you can be successful without a good website because theirs is the worst, like IDSA bad.
Mike and Maaike - definitely. There are a lot of design practitioners of exactly the same skill level and quality. Hard to say who is better. However, the real verdict can only be made by looking at how many years have they managed to stay profitable in the field of product design.