Did you just stumble upon a download or a file on your computer that has a digital signature from Calabrio Inc.? If so, please read on.
You will probably see Calabrio Inc. when double-clicking to run the file. The publisher name shows up as the "Verified publisher" in the UAC dialog as the screenshot shows:

You can view the additional details from the Calabrio Inc. digital signature with the following steps:
Here's a screenshot of a file digitally signed by Calabrio Inc.:

As you can see in the screenshot above, Windows states that "This digital signature is OK". This means that the file has been published by Calabrio Inc. and that the file has not been tampered with.
If you click the View Certificate button shown in the screencap above, you can view all the details of the certificate, such as when it was issued, who issued the certificate, how long it is valid, etc. You can also examine the address for Calabrio Inc., such as the street name, city and country.
GlobalSign ObjectSign CA and VeriSign Class 3 Code Signing 2010 CA has issued the Calabrio Inc. certificates. You can also see the details of the issuer by clicking the View Certificate button shown in the screenshot above.
These are the Calabrio Inc. files I have collected, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 0/45 | spcd.sys |
| 0/50 | spcd.sys |
The detection percentage is based on the fact that I've collected 95 scan reports for the Calabrio Inc. files. 0 of these scan results came up with some sort of detection. You can review the full details of the scan results by examining the files listed above.
The analysis is based on certificates with the following serial numbers: