World top some company Holding 10000+ Bitcoin

How can a company holding 500k + bitcoin? According to coinmarketcap data analysis there are only 1 address who is holding the highest amount of bitcoin which is 141k bitcoin. Then in your graph how can it shows the highest bitcoin holder is 500k + bitcoin holder. Can you please verify it. Because i saw it in coinmarketcap. I do not think soo that coinmarketcap provide any fake information. Now i am seriously little bit confused. If anyone can clarify it please quota my reply and send a private message is this the correct information. Because in coinmarketcap information the write only 1 address has hold the highest amount between 100k to 1000k and that is 141k then how 500k holder comes.