On line back up

I've seen this posted before here but could not find it with the search key or on google.
There are several companies that offer on line back up but there is one that will send you a back up external hard drive for those of us whom already have a TB of data that would take months to back up.
Do any of you know what company that is? And have you had good success with them?
Thanks and if I need to move this post to another section just let me know.
Stan