Here is a list of charities that award grants to parents in need of financial support for therapy.  Check them out!  

Mason Grant
http://www.masonichometx.org/#autism

Act Today
http://www.act-today.org/act-today-grant-program.php

UHC (United Healthcare)
www.uhccf.org

The Huckleberry Foundation
https://www.thehuckleberryfoundation.com/huckhelps

Texas Elks
https://texaselks.org/specialgrants/

Variety of Texas
https://www.varietytexas.org/apply/