Quote:VirusTotal, which is part of Alphabet's cybersecurity company Chronicle, announced the release of VirusTotal Enterprise on September 27, 2018.
VirusTotal was previously available as a free and premium service. The free service allowed anyone to scan files or URLs against different antivirus engines and use the built-in search to find matches in the VirusTotal database.
VirusTotal Premium, a paid service, added new capabilities and features on top of that such as Intelligence which linked items together or options to monitor uploaded files constantly to receive notifications whenever supported antivirus engines reported new issues with a monitored file.

Full reading: https://www.ghacks.net/2018/09/27/virustotal-enterprise-launches-with-new-and-improved-features/