The job of transferring the knowledge and skills of a person or persons who are specialized in a special field to the organization or individual they serve within a certain period of time in accordance with the defined job description is called consultancy.

It is the person who provides investment consultancy services to companies, companies or individuals, gives written or verbal advice, and makes investment analysis in order to analyze the profit and loss of capital market instruments.

They are people who provide financial assistance and support to individuals and institutions. Financial advisors, who carry out the business of evaluating the movable or immovable assets of individuals or companies in the markets, also provide services in subjects such as private pension and life insurance.

Corporate strategy; activities aimed at increasing the success and increasing the value of an institution, taking into account the long-term comparative advantages of the institution.

Service marketing can be divided into two areas. These are external and internal marketing.