The company that yesterday was known as Google is now a collection of separate companies, owned by a new holding company called Alphabet. The “Google” brand is the largest of those companies, and it includes search, advertising, maps, apps, YouTube, and Android. The company’s less related endeavors – the biotech research project Calico, the Nest thermostat, the fiber internet service, the “moonshot” X lab, Google Ventures, and Google Capital — are all now separate companies housed under Alphabet.