Some Type Advertising Agencies

Some Type Advertising Agencies 

these three types of institutions:
Creative Boutiques
an organization that specializes in the manufacture of the actual ad. They provide creative services which is the creation and implementation of advertising. They are responsible for creating imaginative themes and produces the original advertisement. A company using this type Advertising Agency should hire another agency to perform other tasks such as planning, purchasing and administrative functions connected with advertising.
Media Buying Agencies
Institutions media buying is a company advertising agency independent specializing in the purchase of media, especially radio and television time, ordered place at various stations involved and monitoring stations to see if the ads are actually running or not, they receive a discount and can save a small agent or the client's money on purchasing Media.
In-House Agencies
Some companies choose to reduce advertising costs by setting up his own advertising agency in their organizations. This is called in-house agency. Large companies are the ones who usually have this type of advertising agencies and it is common for them to outsource the project to maintain a certain freshness to the campaign and special projects. These types of institutions are also better understand the products and they are more aware of the goals and objectives of the company for public relations and marketing department in the organization itself.