The customers, employees, stockholders, suppliers, creditors, and others who stand to gain or lose by the policies and activities of a business represent the firm's:

Stakeholders

Explanation:

A business' policies and actions affect a variety of interests including,

Shareholders, who own equity interests in the company, Suppliers and employees, who provide the inputs required for the company's operations, Clients and customers, who consume the output of the business, Government, who is paid taxes on the company's operations.

And so many more.

All categories of interests and people affected by a company are term stakeholders.