So Updating the list (if you know more please add).
This is a good sized chunk of the floor.

Savant (60 x 70)
Snap (60 x 80)
Sony (50 x 60)
URC (50 x 50)
Ring (30 x 30 + 20 x 40)
Eero (30 x 20)
Nortek (50 x 50)
Theory (30 x 20)
RTI (30 x 20)
Samsung (60 x 60 + 17 x 24 SR)
Harmon (60 x 60)
Sonos (50 x 30)
Sound United (30 x 30)
LeGrand (60 x 40)
Nortek (50 x 50)

Taken all together that would be a booth of 667' x 704' (assuming I entered the data correctly).
That is a lot of Sq Feet.