A business sponsorship proposal is a document that outlines the reasons why an individual or company should invest in a particular business venture. It provides a snapshot of the business, its goals and objectives, including any potential risks and rewards associated with investing in it. The goal of this document is to persuade potential investors to make a financial commitment to the business; as such, it needs to be well-written, professional and persuasive. It should include details about the business, the benefits it can offer sponsors, how the money will be used, the expected return on investment and any other information that potential sponsors may need to make an informed decision.