…and Dropbox.
They moved everything including the hardware and the data in house, and next year they’ve doubled the provided storage (to 1TB) with no additional cost.
Lastly, they’ve doubled the storage to 2TB and added some features for $20 more.
Self-hosted organizations that I think of off the top of my head are Google, Facebook, Amazon, Backblaze, Microsoft, Stack Overflow, and possibly Wal-Mart & CloudFlare.