Did you just stumble upon a file that has a digital signature from Fawkes Engineering, LLC? If that's the case, please read on.
You will typically notice Fawkes Engineering, LLC when double-clicking to run the file. The publisher name is then displayed as the "Verified publisher" in the UAC dialog as the screenshot shows:

You can view additional details from the Fawkes Engineering, LLC certificate with the following procedure:
Here's a screenshot of a file that has been digitally signed by Fawkes Engineering, LLC:

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 Fawkes Engineering, LLC and that the file has not been tampered with.
If you click the View Certificate button shown in the screengrab above, you can see 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 view the address for Fawkes Engineering, LLC, such as the street name, city and country.
VeriSign Class 3 Code Signing 2009-2 CA has issued the Fawkes Engineering, LLC certificates. You can also see the details of the issuer by clicking the View Certificate button shown in the screencap above.
These are the Fawkes Engineering, LLC files I've collected, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 0/51 | RipCore.exe |
The detection percentage is based on that I have collected 51 scan reports for the Fawkes Engineering, LLC files. 0 of these scan results came up with some sort of detection. You can review the full details of the scan reports by examining the files listed above.
The analysis is based on certificates with the following serial numbers: