I have an older home that clearly needs insulation and is not good at holding in cold air (or hot for that matter0. Just an older home and I would like a contractor to assess and give me a good quote to get this home as efficient as possible. Anyone have recommendations in the Bryan/College Station area?

The EZ part is attic if accessible so recommendations galore might be posted, as well as your Google search for 5-star reviews.
The hard part are the walls and fenestration perimeters at fault.
I would get an honest remodeler involved in the whole house such as Abbate Construction or others interested.