At the time, I think Compaq was the fastest-growing startup in history. And, of course, Dell also came out of Texas--albeit the Dallas area rather than Houston. TI is also a Texas company. Etc.
Indeed, the story is that he got his start selling PCs out of his Jester dorm room.
[1] https://www.texasmonthly.com/articles/good-bye-to-all-that/