Many clients ask about the capabilities of the native SharePoint backup and that usually leads to the disclosure that while it is an effective tool, it does have some limitations. Most notible is the lack of a true "Item level" restore option without doing a whole restore to another environment and manually moving the data over.
I came across the following site in my travels and needed it again this week for a client to get more info on several available applications. While I have had experience with some specific applications (AvePoint, CommVault, NetApp), there are many others that could be a better fit for your company. This link will take you to the excellent SharePoint Reviews site and specifically to their backup and recovery product reviews.
Again having knowledge of these utilities will ensure you make the correct decision for your particular situation.