H1 is on a mission to connect the world with the right doctors. H1’s AI-powered platform leverages a continuously learning Doctor Graph to identify and engage the right doctor for the critical needs in healthcare. It is built on one of the world’s largest and most comprehensive global datasets of healthcare professionals. By combining deep healthcare data with agentic AI workflows, H1 powers clinical research, medical exchange, patients finding doctors, health plan network analytics, and a system of record for provider data, helping create a healthier future for all.
| Website | https://h1.com |
| Revenue | $105 million |
| Funding | $193.9 million |
| Employees | 568 (299 on RocketReach) |
| Founded | 2017 |
| Address | 373 Park Ave S 4th Floor, New York, New York 10016, US |
| Phone | +1 646-363-6450 |
| Industry | Software Development, Healthcare Software, Software Development & Design, Software |
| SIC | SIC Code 73 Companies, SIC Code 737 Companies |
| NAICS | NAICS Code 51 Companies, NAICS Code 5182 Companies, NAICS Code 511 Companies, NAICS Code 518 Companies |
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H1 Questions
The H1 annual revenue was $105 million in 2026.
Ian Sax is the Co-Founder of H1.
299 people are employed at H1.
H1 is based in New York, New York.
The NAICS codes for H1 are [51, 5182, 511, 518].
The SIC codes for H1 are [73, 737].
Top H1 Employees
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Ian Sax
Co-Founder at H1
New York, NY, US23 -
Ariel Katz
CEO and Co-founder at H1
New York, United States35+ -
Michael Kennedy
Vice President, Global Strategic Accounts at H1
New York, NY, US14 -
Judith Rubinstein
SVP, Data and Research at H1
New York, NY, US25 -
Chris Gardella
Senior Vice President, Commercial at H1
New York, NY, US35+ -
Devin Basinger
Chief Operations Officer at H1
Boston, MA, US33 -
Mark Viehland
Senior Vice President Finance at H1
Florida, United States34 -
Betsy Hayes
SVP, People at H1
Denver, CO, US25+ -
Stacey Rivkin
Senior Vice President, Commercial Strategy and Enablement at H1
New Rochelle, NY, US33
