You may create a POI to mark your location on the map. However, if you wish to mark it permanently as an organisation/school/business on Google maps, you’ll need to send a request to Google Maps support.
You may refer the web link below for more information:
Disclaimer: This third-party web link is being provided as a convenience and for informational purposes only. We bear no responsibility for the accuracy, legality or content of this site. You may contact the site for answers to questions regarding its content.
