with the greatest respect dude .. i think you should go and sit down for a long time and think about what it is "exactly" that you would like to do ??!!!
You seem unsure about what you want to do and for who .. simply saying that i want to sort out global surfing events is not going to get you very far , other than laughed out of your local bank .
Come up with a definate business plan of what you want to do and with all the relevant figures and then ..maybe then .. and only then , will someone take your plan and give it some time .
To answer your question in short ...big brand names for the most part, hire companies or people with a proven track record in organising these things .. and then the work is broken down into chunks ..i.e photographers , marketing , PR , etc etc
If you are passionate about doing this then i would maybe think about organising a few local events and see how you get on

..you may find that you change your mind after getting caught up in the stress of it all !!
Apologies if i sound harsh but in business its always better to get an honest response than a response that panders to what " you want to hear "
