Its depends what you define as control. The first thing is no one is control crypto.  A cryptocurrency is a digital or virtual currency that uses cryptography for security. A cryptocurrency is difficult to counterfeit because of this security feature. A defining feature of a cryptocurrency and arguably its most endearing allure is its organic nature; it is not issued by any central authority, rendering it theoretically immune to government interference or manipulation. if you say that who control price of the bitcoin then it control big group of investors they manipulate the price of both bitcoin and crypto currency world. Actually no one control the market totally it can’t control in one hand like central bank control fiat currency. when china was dominating in the crypto market chiness gamblers used to easily manipulate bitcoin price but later when bitcoin inventors spread worldwide they lot their control. If any large number of  group of people get together and work together then they would able to control bitcoin price as well as crypto market.