Name Location foundation date of YouTube channel YouTubesubscribers YouTubeviews YouTube Website private/ professional financing advertising revenues 1 Cleveland Clinic Ohio 2007 408’000 116’327’584 yes yes professional (private clinic) $326 rmillion research funding in 2021 unknonw 2 DC Rainmaker Paris 2007 409’000 97’160’066 yes yes unknown unknown unknown 3 Andreas Spiess Switzerland 2015 40’7000 41’118’328 yes …