The main differences between them are:

A limited liability company is a limited liability company whose liabilities are registered by the amount of capital. In case of any accident, the company's commitment is limited to this.

There are three or more subsidiary companies under the group company. The group company controls the number of shares of each subordinate company. The subsidiary company can be a limited company or not.

Besides, most of the time, all the subsidiaries are limited companies, but the group companies are not.

Subsidiaries usually operate independently, so long as they reach annual budgets,