Larry Page is the co-founder of Google and was the CEO of Alphabet, the parent company of Google, until 2019. He appointed Sundar Pichai as the CEO of Google in 2015 and has praised his leadership and vision.
Sergey Brin is the co-founder of Google and was the president of Alphabet until 2019. He has worked closely with Sundar Pichai and has supported his initiatives such as Google Chrome, Android, and Google Cloud.
Satya Nadella is the CEO of Microsoft and a fellow Indian-American technology leader. He and Sundar Pichai have expressed mutual respect and admiration for each other and have collaborated on various projects such as the COVID-19 tracing app and the AI ethics partnership.
Susan Wojcicki is the CEO of YouTube, a subsidiary of Google. She has worked with Sundar Pichai since he joined Google in 2004 and has helped him grow Google's advertising and video businesses. She is also his sister-in-law, as she is married to his brother-in-law Dennis Troper.
Tim Cook is the CEO of Apple, one of Google's main rivals and partners. He and Sundar Pichai have maintained a cordial and professional relationship despite their competing interests and have cooperated on issues such as privacy, encryption, and social responsibility.