Many large companies are holding extremely large amounts of cryptocurrencies, especially bitcoin. But the major financial institutions are still limited, most of the list above are crypto exchanges and funds.
In 2021 the list could just continue to grow of some companies would buy it for the first time as other have started to purchase it and would like to take advantage of it. Though not many would have that 10k and above but will have many companies such companies who would have 100's of quantity and keep increasing the count as and when markets dips.