The primary goal of any service company is to provide top quality services, therefore it is inevitable for them to manage an exquisite quality organization of advertisement activities. There have been described the following marketing activities which include: market research and specifics of mixed marketing elements of services. Due to the specific characteristics of the marketing mix of services, there have been added, in addition to the four main components of the concept: services, promotions, prices and distribution; three additional variables such as: processes, the physical environment and people. The organization of marketing service companies can be viewed from two different aspects: the place of marketing in an organizational structure and the relations that it has with other business functions of the organization and marketing functions as part of an organizational unit. The company should establish such an advertisement organization that will enable the implementation and control of marketing activities. The thesis gives an example of the organization of marketing activities of two company: Privredna banka Zagreb d.d. and Allianz Zagreb d.d. describing their marketing activities that have been carried out and showing the two processes finally compared.