You need a narration casting agency. You need a recording studio. You need a writer who really understands how the words need to sound, and how to make them play with the visuals and the music. All you need is SAI.
It’s not music but it needs to sounds just as good. And it’s not just the facts the words convey, it’s a feeling. Two decades of directing and delivering narrations positions SAI to make sure it is said just right.