Limo for 8 people from IAH to Galveston

Does anyone know of which limo company can pick us up at the IAH and take us to our hotel in Galveston?

I've been looking but not with a lot of success.

The problem is the amount of luggage.

We thought it would be fun to arrive in a limo:o

So still hoping we can find one.

Not leaving till April 2015 so have time to look.

Been looking around and calling around. Have a few that we have found.

Has anyone used Royal Carriages lately?