RhodeCode is self-hosted, but you can run it in Azure/Amazon cloud. For large companies, that setup might prove even more stable than relying on someone else's cloud [1]
[1] GitHub's down? https://news.ycombinator.com/item?id=9497821
[1] GitHub's down? https://news.ycombinator.com/item?id=9497821
As an aside to the general HN readership, are there any good Mercurial hosts other than BitBucket?