Let's take the banking sector as a example. In 1896 several banks in London and the English provinces, notably Backhouse's Bank of Darlington and Gurney's Bank of Norwich, united under the banner of Barclays and Co., a joint-stock bank. They eventually changed their name and started to trade under the Barclays name headquartered in London.
This is how monopolies are formed. They start out trading as individuals and when the company decide to change strategy, they join together to form one multinational system. ^hmmmmmm^
dont forget barclays now owns
Lehman brothers
ING
ABSA
and a dozen other international banks.
but here is the part you really need to keep quiet.. the core-blockstream-PwC-barclays connection.. dont mention the bankers connection to core or you will get rekt and get told that you must be a banker employee and core (paid) devs are innocent