If you're interested, there's already a Indie corporation in existence: Cipher Corporation. While it's technically a branch of the Guild, it's semi-independent too (the main reason it's a branch is because it has some shadow dealings, but not all of it is Guild-tied). It hasn't really been used much yet, so if you're interested, you're free to use Cipher Corporation for your "Production Company". You wouldn't even need to worry about member registration, as it's already approved.