Who is a "key customer" for your business?

A Key customer is a person or a company who gives  a substantial amount of business to your organisation. These key customers some times are given special discounts like cash discount,trade discounts, turn over discounts, quantity discounts and other privileges according to the organisation's policies. they may also be given a lenient payment facilities by the organisation.

Key Accounts are those who has direct and indirect influence on the revenue generation of the company. They are not only those who buy much, but also people or companies whose presence in the customer's list can be used as a great reference to others. 

A Key customer is the person/enterprise who is  well qualified to define the strength of Your Customer relations and contribute to streamline your business by way of Revenue and Goodwill.

Customers are identified through the company's targeted audience. They are the main source of revenue for an organisation. Key customers depend on the nature of the business and what a company is trying to sell, e.g a company selling luxury bath suites their key customers will not be students of young age and in full time education, they will target families, employed individuals, wealthy people and so on.

Key Customers : Are those Customers (or) Buyers who create the Brand . These Customers are Value to an Organization because they could create a buzz around the brand . A demand for that product . It could be there one time buying is equivalent in value of equity more than many buyers together .

Customers who can add tangible and intangible values towards high growth to the business over a marked period are generally categorized as Key Customers.

Apparently customer where you can do business for long term on continuous base. 

In my feedback manufacturing overview,

my key customer would be the most performant employees. 

In a classic business approach;

The key customer  would be that one making the most profitable margin

within the company revenue. 

Buyers who account for the majority of revenue for a given product are normally offered preferential treatment of some sort

Profitable and loyal person is a key customer for the business.

Students.