I found some information about a few of the developers associated with this project.
One of them is LEO Unlimited who is run by Edmund Beck.
https://78209magazine.com/business-p...-unlimited-inc (article about him and his story) He was involved with the Thompson Hotel development
The other is USG Developers who was also involved in the Thompson project.
https://www.usgdevelopers.com/
Finally, REAL International is the other company mentioned. Not sure their role but they are based in Austin.
https://realinternational.com/