The company agreement defines how the owners of the company deal with each other in a professional manner (in a binding manner), while the articles of association define how the company legally relates to the state. Company agreements and articles of association work hand in hand to sketch out your business structure and define how you will work legally. However, you have a bit of overlap and share a few similar functions. For example, both contain necessary business information and share similar functionality and structure. Many states require a company to have a company statute or agreement. Although it is an internal document and therefore has not been submitted to the State, it contains very important information regarding the structure and management of the company or LLC. Not all states require an LLC to have a company agreement. And sometimes, company agreements are only necessary if the LLC has more than one member. Similarly, companies (S-Korps and C-Korps) are not legally required by any state to have a company agreement, but experts advise the owners of these companies to establish and execute their version of a company agreement called statute. . .