what is firm?
A firm is a business organization, such as a corporation, limited liability company or partnership, that sells goods or services to make a profit. A firm is a business organization, such as a corporation, limited liability company or partnership, that sells goods or services to make a profit. While most firms have just one location, a single firm can consist of one or more establishments, as long as they fall under the same ownership and, typically utilize the same Employer Identification Number (EIN).