It may be the problem, but it's also become the standard. If you want Microsoft, you know where to go. If you want Apple, you know where to go. If you want Linux or open standards, there's hundreds of companies that will help you, but which are good? Which are bad? Nobody knows.
Just ask for their certification? Almost every distro that's big enough to need an org to maintain it, has a professional certification program.
>> hundreds of companies, but which are good?
most of them, since there is a lot of competition. Competition is good for businesses.