Who owns the Fediverse? I mean who owns and runs the hardware that runs this system?

I've been talking to many people about the controversy with Reddit, why I left it and why I went onto Lemmy, Kbin and Mastadon instead. Some of my friends have commented that the control is still a problem as other platforms and it is all dependent on who owns the software, who owns the hardware, who are the admins, who are the moderators and which community or group has the most influence.

Who are these people that influence the most control on the fediverse? Are they Conservative? Are they Liberal? Are they Republican? Are they Democrat? Do they lean to the left of politics? to the right? or are they center? Are they even political? But also if they had to be would they easily or not so easily influenced?

So .. for the ELI5 version of the question ... Who owns the fediverse?