Found one of Cinco Ranch in my district of Katy ISD
. I don't think they're much of a competitor for finals though. The most recent (and only) BOA even they have gone to is BOA Austin 2014 where they got 23rd out of 25.
I go to Seven Lakes and would really be watching out for James E Taylor and ourselves. Both our programs have been in the process of an overhaul for the past few years. I'm really hopeful one or both of us will place.