Alphabet owns the Google search engine and was renamed from Google Inc. to Alphabet Inc. in 2015.
Google announced the Alphabet restructuring in August 2015, and Alphabet became the parent company of Google and several other businesses. The change separated Google's core internet products from newer or more experimental operations, while Google remained the largest subsidiary.
Alphabet's businesses include Google Search, YouTube, Android, Google Cloud, and advertising platforms. Because Google is the familiar consumer brand, people sometimes describe Alphabet's stock-market value as Google's market cap, but the listed parent company is Alphabet Inc.
Alphabet is frequently included among the world's most valuable public companies by market capitalization. Its share classes, including publicly traded Class A and Class C shares, are part of the calculation used to value the parent company.