Who is the owner of Polkadot?

Could you please enlighten me on the identity of the owner of Polkadot? I've been hearing a lot about this cryptocurrency project but I'm somewhat unclear about its ownership structure. Is it a centralized entity or a decentralized network? If it's the latter, how does the governance work? Also, are there any key individuals or organizations that play a pivotal role in the Polkadot ecosystem? It would be great if you could provide some insights into this matter. Thank you in advance for your assistance.