Remember, this whole thing about crypto is largely decentralized, thus, there is no single authoritative body in control of the crypto market. Although there are few centralized platforms among crypto, the market is largely influenced by the efforts and influence of the users of crypto. How well sellers and buyers treat the coins on the market affect the performance of the market.
I think that there is no such centalised body who have the control over the bitcoins or the cryptocurrency as you mentioned.
Going back to op, i think that it is us who control the price for bitcoins with the demand and supply going on. The high demand for bitcoins will affect in the rise for bitcoins and vice-versa low demand will affect in the price drop.