There are these too: * https://www.rejuvenatebio.com/ https://www.rejuvenatebio.com/ (Gene therapy for mitral valve disease in dogs) * https://dogagingproject

There are these too: * https://www.rejuvenatebio.com/ https://www.rejuvenatebio.com/ (Gene therapy for mitral valve disease in dogs) * https://dogagingproject.org/ https://dogagingproject.org/ (Involved rapamycin which is already known to increase lifespan in model organisms) * https://www.vaika.org/ https://www.vaika.org/ Reverse transcriptase inhibitors in dogs to increase healthspan/lifespan.