Which are the Trillion Dollar American Companies in the year 2021?

Which are the American companies that have a minimum of 1 Trillion dollar market capitalization in 2021? 

As per Vocabulary.com's webpage link, a trillion is 1,000,000,000,000, also known as 10 to the 12th power, or one million million

A trillion dollars is a million-million dollars ! That is some serious dough ! 

Here is a list of US trillion dollar companies in 2021 (as of 29 June, 2021, as per Barrons.com's webpage link):

1. Apple (ticker: AAPL) is the world's most valued company, at $2.249 trillion
2. Microsoft (MSFT) is second at $2.024 trillion
3. Amazon (AMZN) is third in market cap at $1.74 trillion
4. Google-parent Alphabet (GOOGL) is fourth at $1.67 trillion and 
5. Facebook (FB) is fifth with a worth $1.008 trillion