As I did not get any specific answer in the web articles to these questions below I have posted it here. Few small business from different industry under a parent company means it is a conglomerate company. Now my Question is How many small business from different industry needs to be there in a parent company to be consider as conglomerate company? The small business needs to be private or public company under the parent company to be define as conglomerate company? I would appreciate, if you could solve my query for both question 1 and 2.