I have a friend I am working with developing some iOS apps. I have a company name I use a DBA (doing business as). My company name is also a registered Trade Name in Colorado.
When I looked at the iOS developer program they have an individual or a Company version (for the same price)
When I went to set up a business developer iOS account I saw this screen.
OK so I need a D-U-N-S number?
So I went to http://fedgov.dnb.com/webform and went through the process of obtaining a D-U-N-S number, I gave it a week or so to get fully completed.
Now If I go to the following site https://iupdate.dnb.com/iUpdate/viewiUpdateHome.htm
and log back into the system (I was given a user ID and password when I initially started the D-U-N-S process)
And if I view my Company Report
I can see that I am registered with them as a DBA (which is correct).
Well even though I have a D-U-N-S number, a DBA, an EIN, registered .com site, and a Registered Trade name in my state. I can't get a company iOS developer account.
That is a little frustrating to say the least.
It will work if I form an LLC, but at this point I don't want to go through the expense and time to form an LLC.
For the time being I think I will register as an individual and later, once I form an LLC, convert it to a company developer account.
The idea of reigstering as an individual, then later converting it to a business account was suggested on a forum post I read on the subject at http://forum.unity3d.com/threads/115154-iOS-Developer-Program-individual-or-company 
 iOS Developer Program - individual or company?
Post by Phocker