B2B Marketing Outsourcing and B2B Sales Outsourcing Companies create B To B Marketing that works. Why? Because it's designed to engage with real human beings, people who eat food which there like, drive cars and have peculiar tastes in music. Nothing beats the reality that one gets when you can interact with potential clients face to face physically moving from door to door within a community or household to household, face to face field marketing is also called personal selling or door to door marketing, customers are met directly in order to sell their products, using this method of field marketing we rely on our skills and persuasive abilities.