There are multiple definitions - click on the translation that matches your context.
close company means:
koncentrált részvényesi szerkezetű társaság means:
főnév
partial
noun
The company is a close company if it is a UK resident company with five or fewer shareholders, or where any number of shareholders who are directors have control of the company or together possess, or are entitled to acquire, rights to receive the greater part of the assets of the company. In Hungary, this kind of company does not exist.
a corporation for which most of the voting stock is held by a small number of shareholders
Repco is a close company owned equally by three brothers who serve as officers and are actively involved in running the business.