ID Hot Yoga is owned outright by the two teachers who built it, Kelly Isaac and Tricia Donegan, who still teach classes themselves across all seven of its Manhattan and Hamptons studios with no investors involved. As a self-funded, founder-run chain of this size, it has little public labor or environmental record to weigh either way beyond a clean search. The business answers to Isaac and Donegan, not a private equity firm or outside shareholder.