The above video is a short introduction to using Google Mapmaker
Google Mapmaker is not a tool for creating personal content. Instead this is an excellent way to get your organization on the map. If you've ever googled your organization and wondered why it did not show up in Google Maps then you should add it or edit the existing map.
Sign in to Google Mapmaker with your standard google account (email and password). Then zoom in to the area you want to edit. Add a placemarker where your organization exists and any additional information you would like the general public to know (website, street address, phone number etc). If your street, industrial complex, building et al is not on the map then use then feel free to draw these changes in. Changes made may not appear immediately.