He co-founded Google with Larry Page and has been his long-time partner and collaborator in developing the search engine and other products
He was Larry Page's academic advisor and mentor at Stanford University, where Page pursued his PhD in computer science and developed the PageRank algorithm
He was the executive chairman and CEO of Google and Alphabet from 2001 to 2015, and helped Larry Page navigate the growth and challenges of the company as well as the regulatory and legal issues
He is a friend and fellow visionary of Larry Page, who shares his interest in renewable energy, space exploration, and artificial intelligence, and has inspired him to pursue ambitious and moonshot projects
He is the founder and CEO of Amazon, one of the biggest competitors and partners of Google and Alphabet, and has influenced Larry Page's strategy and vision for e-commerce, cloud computing, and digital media