1.American multinational technology company that specializes in Internet-related services and products, which include online advertising technologies, a search engine, cloud computing, software, and hardware. It is considered one of the Big Five technology companies in the U.S. information technology industry.
2.American multinational pharmaceutical corporation. Pfizer is one of the world's largest pharmaceutical companies, and was ranked 64th on the 2020 Fortune 500 list of the largest U.S. corporations by total revenue, at $47.644 billion as of December 31, 2020.
3.Anglo-Dutch multinational oil and gas company headquartered in The Hague, Netherlands and incorporated in the United Kingdom as a public limited company. It is one of the oil and gas "supermajors" and the fifth-largest company in the world measured by 2020 revenues, the largest based in Europe, and the largest one to not be based in the United States or China. In the 2020 Forbes Global 2000.
4.American multinational information technology company headquartered in Palo Alto, California, that developed and provided a wide variety of hardware components, as well as software and related services to consumers, small and medium-sized businesses (SMBs) and large enterprises, including customers in the government, health and education sectors.