The crypto market is decentralized and there is no single entity that runs it. Instead, it is run by a network of computers that validate transactions and maintain the blockchain ledger. However, there are many companies that provide services related to cryptocurrencies such as exchanges, wallets, and payment processors. These companies are regulated by different authorities depending on their location and the services they provide.
In a decentralized market, technology enables investors to deal directly with each other instead of operating from within a centralized exchange. Virtual markets that use decentralized currency, or cryptocurrencies, are examples of decentralized markets. Decentralization means that there is no central authority or intermediary that controls the market. Instead, it is run by a network of computers that validate transactions and maintain the blockchain ledger.
Intro guide video provides a simple overview on how Blockchain works while shedding some light on the decentralized nature of cryptocurrency.