Did you notice the music entertainment company Awakening Records. It is working from 2000 and now it is the giant in Islamic Song industry.
I downloaded some music videos from youtube of Maher Zain, one of the singers from this recording company. Then I studied online about it. But didn't found anything much. But I can guess something.
Sami Yousuf (Iranian UK citizen), Mesut Kurtis (Turkish Singer) and Nazeel Azami (Some one from Golam Azam Family) may be studied together any university in the department of music. They started to compose and product Islamic songs and step by step they made a bigger startup and named it awakening records. (It's my guess)
There are about seven or eight singers who sings for awakening and most of them are talented composer and singer and arranger of music production. The pioneer is Sami Yousuf, Mesut Kurtis, Nazeel Azami. But they gathered some other people from different parts of the world. Irfan Makki (Pakistani Canadian), Maher Zain (Swedish Lebanese).
The story behind awakening might be different like, some people tried to make a huge islamic song industry and then he managed these singers to sign in any contract to produce only islamic song. Sami Yousuf, Maher Zain, Irfan Makki started to sing song by usual songs before starting career. They were not such a strict Islam followers in nature as they sing before this career. Now Outlandish and other European different rap and r&b singers who are from some Muslim families are joining to them in different particular songs.
I am amazed about their branding, how did they do it? Another brand is coming front in this industry named "One true Media", may be it is another name of awakening or a different company.