A commercial director is a senior manager whose duties are to develop a growth strategy for a business or organization. As a commercial director, your responsibilities include directing your department to research market trends, review the strategies and directives of other organizations in your industry, and design plans that encourage commercial growth. You are also responsible for creating relationships with new clients and solidifying those with existing clients. As the commercial director, you report to the CEO and consult widely with other department heads, particularly those in sales, marketing, and business development.