Animation studios. I worked for one that produced content for Netflix and they were struggling with space issues. With just over 1PB of storage data, it gets tricky to fit more hardware.

You have to keep archival data in case the studio decides to comes back, not forgetting you have to keep revisions, the raw formats, the rendered formats, the render raws, audio raw, audio mixed.

Television Studio's and Broadcasting Companies all occupy lots storage too.