A Non-Disclosure Agreement (NDA) between two businesses is a legally-binding contract used to protect confidential information that is shared between two or more parties. It is designed to ensure that any confidential information disclosed during the course of negotiations or business dealings between the parties is not shared with any third parties or used for any other purpose than was originally intended. Depending on the terms of the agreement, the parties may also be obligated to protect the confidentiality of all information disclosed by the other party, even after the contract has been terminated. There are various types of Non-Disclosure Agreements between two businesses, including unilateral, bilateral, and multi-lateral NDAs. A unilateral NDA is a contract between two parties where only one party discloses confidential information to the other. A bilateral NDA is a contract between two parties where both parties disclose confidential information to each other. A multi-lateral NDA is a contract between multiple parties, with each party disclosing confidential information to one or more other parties. No matter what type of NDA is used, all parties must agree to keep the disclosed information confidential and agree on the terms of the agreement in order for the contract to be legally binding.