Ok it seems like same in our area. For small businesses like around 10 to 15 people, there is no need for a doorman, but when your business is big and the installation is large you will need a specific doorman or security guard for that purpose.If correct, as long as the doorman is merited he will be hired. When the companies are small with few personnel, it is not necessary, but otherwise there will always be a doorman to welcome you to the company, and can guide you according to your request.