This is a common confusion for our customers. Basically what we show are companies only that have a static IP address assigned to them. If someone at home visits you, your adwords/analytics account will show you as having a visitor. However, the reality is that the information attached to such visitors will be of no value to you and because they are on a dynamic IP there are laws in place to prevent personal data being obtained via this method.
When a company visits you with a static IP that is assigned to themselves (most businesses in the world use an assigned static IP) we can then give you the details of this company so that you have the ability to contact them and tender for business if they are a company that you feel you could work with.