Some of the public information is summarized and sourced in Wikipedia:
> Ethos Capital was founded by Erik Brooks. Brooks is a former Managing Partner of another private equity firm Abry Partners. During his tenure at Abry, in September 2018, the company acquired Donuts, a domain name registrar with a wide portfolio of new gTLDs. In October 2018 former ICANN President of Global Domains Akram Atallah joined Donuts as CEO, while in December 2018 Donuts co-founder Jon Nevett joined Public Interest Registry as CEO.
> Other former ICANN staff members are involved in Ethos Capital itself. Former CEO Fadi Chehadé serves as an advisor, and former Senior Vice President, Development and Public Responsibility Programs Nora Abusitta-Ouri serves as Chief Purpose Officer.
https://en.wikipedia.org/wiki/Ethos_Capital
But the whole deal is designed to be as opaque as possible – as explained in TFA we have no idea who will really control the .org when it's done. What we do know is that ICANN management desperately wants those specific people to be in control of and profit from .org for some reason, otherwise they would have gone about this deal very differently. You know, like at least having a bidding process.