A Direct marketing list comprises:
1. People at home (consumers)
A list of Consumers can be narrowed down by demographics such as gender, age, homeowner/renter, hobbies, interests, buying habits, presence of children and more.
2. People at companies (businesses).
A list of businesses can be narrowed down by industry type, number of employees, annual sales revenue, title (such as President, Owner, etc.), buying authority and many more.