Titanium Backup - Titanium Backup is a very old backup app that has been around since the early days of Android. In fact, it's one of the few apps that covers all versions from 1. Read more about Titanium Backup.
Online Vault Backup - Online Vault Backup is a cloud storage service that allows you backup your data while having unlimited storage.
Seedvault - A site about seeds!
WholesaleBackup - WholesaleBackup is an online data backup service provider that turns your system into a backup server, allowing you to host the backup data on your own Windows Server environment.
Apps2SD - Apps2SD: Best app to move/link android apps to SD card, manage your device and boost performance - Link2SD, App2SD, Foldermount, Greenify, Busybox alternative.
Rebel Backup - Rebel Backup lets you make encrypted backups of your important files to Dropbox or Google Drive.