Did you just stumble upon a file that is digitally signed by Northcode Inc.? If that's the case, please read on.
You will probably notice Northcode Inc. when running the file. The publisher name is then displayed as the "Verified publisher" in the UAC dialog as the screenshot shows:

You can view the digital signature details for Northcode Inc. with the following steps:
Here's a screenshot of a file that has been digitally signed by Northcode 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 Northcode Inc. and that the file has not been tampered with.
If you click the View Certificate button shown in the screencap above, you can examine 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 Northcode Inc., such as the street name, city and country.
Thawte Code Signing CA has issued the Northcode Inc. certificates. You can also examine the details of the issuer by clicking the View Certificate button shown in the screenshot above.
The following are the Northcode Inc. files I have gathered, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 0/55 | start.exe |
| 0/43 | ado.dll |
| 0/41 | filesys.dll |
| 0/47 | http.dll |
| 0/48 | filesys.dll |
The detection percentage is based on that I've gathered 234 scan results for the Northcode Inc. files. 0 of these scan reports came up with some sort of detection. If you like, 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: