Alphabet Inc. owns the Android operating system and was created through Google's 2015 restructuring.
Alphabet became Google's parent company when the restructuring took effect in October 2015. Google remained the main operating company, responsible for products such as Search, YouTube, Android, and advertising. Alphabet also provided a corporate structure for businesses and projects outside Google's core internet operations.
Android itself originated at Android Inc., which Google acquired in 2005. It later became the world's most widely used mobile operating system by device deployments, though exact measurements differ by market and method.
Alphabet's market capitalization reflects the combined public valuation of its businesses, especially Google's advertising and cloud operations. It is not the same thing as Google's annual advertising revenue. The company is also distinct from the Google Foundation and from individual products such as Chrome, Maps, and YouTube.