"Bill Gates & Microsoft." Since Gates was the major force behind Microsoft and the most prominent entrepreneur in history, his name is synonymous with the company.
"Gates & Co.." YourDictionary, n.d. Web. 15 August 2018. <http://www.yourdictionary.com/gates-co>.
Gates & Co.. (n.d.). Retrieved August 15th, 2018, from http://www.yourdictionary.com/gates-co