Alphabet is the parent of Google Search, YouTube, and Google Cloud.
Alphabet Inc. was created in 2015 as the holding company that reorganized Google’s businesses. Google became Alphabet’s largest subsidiary, while founders Larry Page and Sergey Brin moved from running Google’s daily operations to leading the new corporate structure.
Google Search, YouTube, Android, Google Maps, and Google Cloud are among the best-known businesses associated with the Google subsidiary. Alphabet also placed several other projects into separate units, including the research organization X and the life-sciences company Verily.
The restructuring did not rename the search engine: people still use the name Google for the search service and many consumer products. Alphabet is the public company whose shares represent ownership in the wider corporate group. This distinction is why a question about the parent company has a different answer from one about the search engine.