The largest company in the world can fluctuate day to day, even minute by minute, depending what measurement is used. Tesla began 2022 as the world's fifth largest company by market cap and ended the year in 11th place after their CEO Elon Musk's acquisition of Twitter.

Author: Luca Ventura

Top 10 Largest Companies in 2021 by Market Capitalizationa

Rank Company Country/Territory Sector ($ Bil.)
1 Apple U.S. Technology 2,406
2 Microsoft U.S. Technology 2,140
3 Saudi Aramco Saudi Arabia Energy 1,865
4 Alphabet U.S. Technology 1,806
5 Amazon U.S. Technology 1,680
6 Facebook U.S. Consumer Services 992
7 Tesla U.S. Automotive 703
8 Bekshire Hathaway U.S. Financial 636
9 Taiwan Semiconductor Taiwan Semiconductors 606
10 Tencent China Technology 592
aAs of August 3, 2021.

Top 10 of the 2021 Fortune Global 500a

Rank Company Country     Revenues ($ Mil.) Revenues (% Change)           Profits ($ Mil.) Profits (% Change)
1 Walmart U.S. 559,151 6.7 13,510 -9.2
2 State Grid China 386,618 0.7 5,580 -30
3 Amazon U.S. 386,064 37.6 21,331 84.1
4 China National Petroleum China 283,958 -25.1 4,575 3
5 Sinopec Group China 283,728 -30.3 6,205 -8.7
6 Apple U.S. 274,515 5.5 57,411 3.9
7 CVC Health U.S. 268,706 4.6 7,179 8.2
8 United Health Group U.S. 257,141 6.2 15,403 11.3
9 Toyota Motor U.S. 256,722 -6.5 21,180 13.1
10 Volkswagen Germany 253,965 -10.2 10,103 -35
aFiscal year ended on or before March 31, 2021.

Top 10 of the 2021 Forbes Global 2000a

Rank Company Country     Revenues ($ Bil.)          Profits ($ Bil.)          Assets ($ Bil.)     Market Value ($ Bil.)
1 ICBC China 191 46 4,915 250
2 JPMorgan Chase China 136 40 3,689 465
3 Berkshire Hathaway U.S. 246 43 874 624
4 China Construction Bank China 174 39 4,302 210
5 Saudi Aramco Saudi Arabia 230 49 510 1,897
6 Apple U.S. 294 64 354 2,252
7 Bank of America U.S. 99 18 2,832 336
8 Ping An Insurance Group China 169 21 1,454 211
9 Agricultural Bank of China China 154 31 4,160 140
10 Amazon U.S. 386 21 321 1,712
aData as of early April 16, 2021.


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