Who is the owner of OpenSea io?

Can you clarify for me who exactly owns OpenSea.io? I've heard about this platform and its popularity in the cryptocurrency and digital asset space, but I'm not sure who is behind it. Is it a publicly traded company, or is it privately owned? Are there any notable investors or founders associated with OpenSea.io that I should be aware of? Additionally, what is the overall vision or mission of the platform, and how does it aim to benefit its users? I'm curious to learn more about the ownership structure and the driving forces behind this popular marketplace.