Did you just run into a download or a file on your computer that has been digitally signed by Onset Computer Corporation? If that's the case, please read on.
You'll probably see Onset Computer Corporation when running the file. The publisher name is then displayed as the "Verified publisher" in the UAC dialog as the screencap shows:

You can also view the Onset Computer Corporation certificate with the following procedure:
Here's a screenshot of a file signed by Onset Computer Corporation:

As you can see in the screenshot above, Windows states that "This digital signature is OK". This implies that the file has been published by Onset Computer Corporation and that the file has not been tampered with.
If you click the View Certificate button shown in the screenshot 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, and so on. You can also view the address for Onset Computer Corporation, such as the street name, city and country.
COMODO RSA Code Signing CA has issued the Onset Computer Corporation certificates. You can also view the details of the issuer by clicking the View Certificate button shown in the screenshot above.
The following are the Onset Computer Corporation files I've collected, thanks to the FreeFixer users.Unfortunately I don't have any scan result from VirusTotal available for the Onset Computer Corporation files at the moment. The scan results will appear here as soon as a FreeFixer user uploads a file digitally signed by Onset Computer Corporation.
| Detection Ratio | File Name |
|---|---|
| Not available | HOBOware_Free_Setup.exe |
The analysis has been done on certificates with the following serial numbers: