0
Y'all made some really good guesses. But, so as not to drag it out, it was the Nestor Film Company, which later became Universal Studios. It was the first permanent film studio in Hollywood (1909). There had been 1 or 2 others, but they were in L.A., not Hollywood. It was also the first one to construct a sound stage.
One of you guys can do the next one...
~Doc