I just want to say that you can pay the ransom for most Ransomware and you will get your files decrypted. While I do not encourage this (as it encourages the crooks behind it as well), if a company have irreplacable data and they need it in order to survive or else, I could understand if they wanted to pay the ransom.
Edit: Also it seems that these files were encrypted three times: CTB-Locker, Cryptowall and KEYHolder. In any cases, even if you decrypt the files for one encryption, you'll need to decrypt it for the two others. And the decryption must be done in reverse order (from the last to the first).
Edited by Aura., 09 July 2015 - 05:33 PM.