Landscape can check private repositories hosted on GitHub.
If you have a non-profit or academic project, I’m happy to discuss a discount - send me an email.
The free trials are pretty relaxed. If you ran out of time to try or need an extension, just send me an email.
If your company has a Landscape subscription and you want to be able to see the results, you will need to grant Landscape permissions to view your list of private repositories on GitHub, so that it knows which ones you can view. You can do this from your preferences page.