To add the business to the map, you will need to add it as a POI (a point in the iD editor which you used) at its physical location, rather than adding descriptive tags to the road.

You also need a tag to tell data consumers what sort of POI it is, which would probably be something like craft=plumber. There is a link to the documentation below.

https://wiki.openstreetmap.org/wiki/Key:craft