As I mentioned earlier, there are vendor-specific tools that are built into backup applications. So companies like BakBone and CA and CommVault have those types of applications that are built right in and report on their own backup application. And then of course you have storage resource management solutions that also offer a pretty high-level monitoring of the backup process.
But the vendors that really fit into this category are the independents who offer multivendor backup reporting solutions. That would include organizations like Aptare, Bocada, Servergraph, which is now part of Rocket Software, Symantec, Tek-Tools and WysDM, which was recently acquired by EMC.
Checkout the entire Backup reporting FAQ