Google is a company.
A conglomerate is the combination of two or more corporations engaged in entirely different businesses that fall under one corporate group , usually involving a parent company and many subsidiaries . Google . Google has also experimented with becoming an Internet carrier . Initial public offering ( IPO ) or stock market launch is a type of public offering in which shares of a company usually are sold to institutional investors that in turn , sell to the general public , on a securities exchange , for the first time . A mobile network operator or MNO , also known as a wireless service provider , wireless carrier , cellular company , or mobile network carrier , is a provider of wireless communications services that owns or controls all the elements necessary to sell and deliver services to an end user including radio spectrum allocation , wireless network infrastructure , back haul infrastructure , billing , customer care , provisioning computer systems and marketing and repair organizations .