If you mean the Vertafore PL Rater, mine has 19 companies for auto. As I gained access I just added the login credentials with no problem. I don't know that there is a limit to the number you can add. If you go under account options and put in your state and then auto it gives a very extensive list of carriers for my state anyway.
Most carriers will be on there. Some nonstandards will not and a couple preferred might not be (odd ball one here and there). It is up to the company if they have the relationship. I am pretty sure they have to pay to be on it so... You can get a hold of vertafore and they will tell you about certain carriers if you have questions on a particular one.
