As of Aug 4, 2026, ChatGPT is owned by OpenAI LP, the company that developed...

https://wiki-global.win/index.php/OpenAI_Can_Run_on_Any_Cloud_Now_%E2%80%94_Or_Only_Microsoft_Azure%3F_Clarifying_the_Facts

As of Aug 4, 2026, ChatGPT is owned by OpenAI LP, the company that developed the product. While OpenAI LP runs the day-to-day work on ChatGPT, overall governance control lies with the OpenAI board and associated limited partners