A Non-Disclosure Agreement (NDA) between companies is a legally binding contract that sets out the terms of a confidential relationship. It is used to protect confidential information shared between two parties, such as business plans, trade secrets, research and development, and financial information. NDAs are generally used when two companies are considering a business relationship such as a merger, joint venture, or other form of cooperation. There are two main types of Non-Disclosure Agreements between companies: mutual and unilateral. A mutual NDA is a contract between two parties who both agree to protect the confidential information of the other. This type of NDA is often used when two companies are discussing a possible business relationship. A unilateral NDA is a contract between one party who discloses confidential information to the other and requires them to keep it confidential. This type of NDA is often used when one company is seeking advice from another and wants to ensure that the confidential information is kept secure. Both types of Non-Disclosure Agreements typically include provisions regarding the disclosure of confidential information, such as what types of information are covered, how long the agreement is in effect, and the consequences of violating the terms of the agreement. Additionally, NDAs often include provisions regarding the use of the confidential information, such as how it can be used, who can access it, and how it can be shared with third parties.