MaxMind’s Organization and ISP databases can be used to get company/provider information for visitors.

To use them, simply select & purchase the database you want and upload it to the misc Piwik directory.

If you are using a GeoIP server module you may have to do more to get it to work w/ Piwik. The relevant instructions are here for Apache, and here for Nginx.

If you are using the PECL extension and are using a custom directory for your GeoIP databases, upload the new database to this directory instead of Piwik’s misc directory.

Also, make sure Piwik’s Provider plugin is deactivated otherwise the new GeoIP information will be overwritten.