Vertical marketing systems is a kind of cooperation that exists between the distribution channels that are available in various levels with different members working together for promoting the efficiency and also the scale of economies in way that the products can be promoted towards customers, products get inspected, credit can be provided to the customers and also can be delivered to the customers.
There are various marketing systems available in the vertical type. According to the category of the VMS, you should be able to do the various things that are related with the marketing.
The vertical marketing system comprises of mainly three components. Producer, wholesaler and retailer are the three major components included in this kind of marketing system. Producer can be considered as the manufacturer who is involved in the making of the product.
The wholesaler usually purchases the products from these producers and then they manage the distribution to the retailers. The retailers are the people who markup the price of the products depending on wholesaler and also can sell the products to the final users or the customers.

Corporate
A corporate vertical marketing system can be involved with the ownership that of the levels of distribution or production chain that is associated with a single company. An example for the corporate is Apple who is responsible for doing everything related with their products. Apple Company has place for the designing and also the making of the products. These products that are made by the company are sold in the retailer shops of the company itself. They need not have to depend on any of the other people for the purpose of production or even selling of the products.