an organisation engaged in business as a proprietorship, partnership, corporation or another form of enterprise. Originally, a firm made up of a group of people was distinguished from a sole proprietorship. However, since few proprietorships own their existence exclusively to one person, the term now applies to proprietorships as well., The term "company" implies an association of a number of people for some common object or objects ... normally for economic purposes, i.e. to carry on a business for gain. There exist two main types of organisation for such associations, partnerships and companies. Although the word "company" is colloquially applied to both ..., täisühing, usaldusühing, osaühing, aktsiaselts ja tulundusühistu. Seaduses võib ette näha ka teisi äriühinguid.