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.
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
a As 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
a Fiscal 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
a Data as of early April 16, 2021.