H1 is a nine-year-old healthcare data platform that compiles and sells detailed information about physicians to pharma companies, hospital systems, and health insurers. The company emphasizes that its core asset is proprietary provider data, which it views as difficult for AI models to replicate and potentially valuable to AI model makers. H1 turned cash flow and EBITDA profitable last year and is forecasting more than 40% growth this year. The startup has grown organically and through acquisitions of smaller competitors and complementary businesses. H1 raised $100 million led by Altimeter Capital in November 2021 at a $750 million valuation. The recent investment by CVS Health Ventures establishes a strategic partnership with a major healthcare company.

Total raised

$240M

Funding rounds

6

Latest round

Equity

Latest activity

May 2026