A one-man agency is a type of creative agency that is run by a single person. It is a business model where the owner agrees to represent or collaborate with a client, typically on a limited contract basis. The owner of a one-man agency handles all aspects of the business, including content creation, marketing, and planning. The agency is engaged to complete a project, campaign, or solve a specific problem, then move on. The owner of a one-man agency can make a significant income, as demonstrated by a one-person design agency that makes over $130,000 per month. Starting a one-man agency requires careful planning and execution, and there are several steps that need to be completed to get the business up and running.