A business advisor is a consultant we provides for business owners with information that will help them run their businesses more effectively. we Advisors can be consulted on a one-time occasion to assist with streamlining or improving a business, or they can play a more active role, offering recurrent advice sessions to their clients. Many business advisors offer one on one consultation along with business classes designed for groups of people, such as new business owners. Classes can provide a low-cost way to access business advice that is especially useful for people who may not be able to afford a full private consultation.