A private company limited by shares is a type of company incorporated under the laws of England and Wales, Scotland or that of certain Commonwealth countries and also the Republic of Ireland. It has shareholders with limited liability and its shares may not be offered to the general public, unlike those of public limited companies.
"Limited by shares" means that the company has shareholders, and that the liability of the shareholders to creditors of the company is limited to the capital originally invested, i.e. the nominal value of the shares and any premium paid in return for the issue of the shares by the company. A shareholder's personal assets are thereby protected in the event of the company's insolvency, but money invested in the company will be lost.
A limited company may be "private" or "public". A private limited company's disclosure requirements are lighter, but for this reason its shares may not be offered to the general public (and therefore cannot be traded on a public stock exchange). This is the major distinguishing feature between a private limited company and a public limited company. Most companies, particularly small companies, are private.
In British or Irish company law, a company limited by guarantee is an alternative type of corporation used primarily for non-profit organisations that require legal personality. A guarantee company does not have a share capital, but has members who are guarantors instead of shareholders. The guarantors give an undertaking to contribute a nominal amount (typically £1) towards the winding up of the company in the event of a shortfall upon cessation of business. It cannot distribute its profits to its members, and is therefore eligible to apply for charitable status if necessary.
Like a private limited company, a company limited by guarentee must include the suffix "Limited" in its name, unless specifically excluded by law.