Big Health

Big Health is a global leader in digital therapeutics dedicated to helping millions back to good mental health.

Big Health’s mission is to help millions back to good mental health by providing safe and effective non-drug alternatives for the most common mental health conditions including insomnia and anxiety.

Big Health was founded in 2010 by Peter Hames and Professor Colin Espie. The company is headquartered in San Francisco, California.


Big Health's"digital therapeutics" - Daylight™, for worry & anxiety, and Sleepio™, for poor sleep - are fully automated, scalable cognitive and behavioral programs. The company's products combine the intimacy of the human voice, engaging animation, and clinically rigorous techniques to help people overcome their mental health challenges.


Big Health’s digital therapeutics expand access to gold standard care, including behavioral medicine, and are backed by industry-leading research and randomized controlled trials.


Big Health has more than 10 million people using its products, 13 randomized controlled trials evaluating its approach, and more than 28,000 participants across all evidence studies


Big Health is backed by KP Ventures, SoftBank Vision Fund 2, ArrowMark Partners, Gilde Healthcare, Morningside Ventures, Octopus Ventures, Samsung NEXT, and others. The company raised $75M in Series C round on Jan 19, 2022. This brings Big Health's total funding to $129.3M to date.



  • Year founded: 2010
  • Funding Info: $129.3M over 4 Rounds (Latest Funding Type: Series C)
  • Yearly Revenue: NA
  • Employee Size: 51-200
  • Business Valuation: NA
  • City/Town: San Francisco
  • State: California
  • Country: United States
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