Alphabet became the parent company of Google in 2015.
Google announced the new corporate structure in August 2015, and Alphabet was formally created later that year. Google became a subsidiary focused on internet products and services, while Alphabet provided a broader holding-company structure for Google and several other businesses or projects.
The reorganization separated Google’s core activities—such as Search, advertising, YouTube, Android, and Maps—from ventures in areas including life sciences, transportation, and research. Larry Page became Alphabet’s chief executive, while Sergey Brin became its president. Sundar Pichai became Google’s chief executive and later took over as Alphabet’s CEO in 2019.
Alphabet is frequently included in lists of the world’s largest companies by market capitalization because of Google’s dominant advertising business and its large technology ecosystem. Alphabet’s market value should not be confused with Google’s revenue alone: the parent company’s capitalization reflects investor expectations about the entire corporate group.