Big Health

Big Health is a pioneering digital therapeutics company on a mission to help millions of people return to good mental health by providing fully automated, evidence-based cognitive behavioral therapy (CBT). Founded in 2010 after co-founder Peter Hames successfully treated his own insomnia using techniques developed by his eventual co-founder, Dr. Colin Espie, the company operates at the intersection of clinical rigor and scalable software. Under the hood, Big Health engineers FDA-cleared, reimbursable digital treatments—specifically Sleepio for chronic insomnia and Daylight for generalized anxiety disorder—that deliver personalized CBT without the need for medication or long waitlists. Their primary target audience includes major health systems, enterprise employers, and health plans looking to offer their populations safe, first-line mental health care at scale. What sets Big Health apart in the crowded digital health space is its unrelenting commitment to industry-leading clinical validation; its platforms are backed by over 100 peer-reviewed publications and multiple randomized controlled trials, proving that highly accessible, app-based interventions can deliver tangible cost savings and life-changing health outcomes.