# H1: Information technology & services, New York, United States

> H1: H1 is a New York-based healthcare data and software company founded in 2017. Based in New York, United States. Founded 2017.

Source: https://millionrounds.com/startup/h1-2 (Millionrounds; every figure on the page links to its filing or article)

United States · [Information technology & services startup](https://millionrounds.com/companies)

# H1

H1 is a New York-based healthcare data and software company founded in 2017.

Funding reported Last round: Series A

Information technology & services New York, United States

Company summary

- **Founded:** 2017 9 years old
- **Team:** 460 201 to 1,000 people
- **Funding reported:** $238M in dollars
- **Last round:** Series A May 2026

How sure we are

- ✓ **Listed** We know it exists and what it does
- 2 **Funding reported** A company dataset reports a raise
- 3 **Observed** A filing or a dated announcement confirms a round

No round for H1 has been confirmed by a filing or an announcement yet, so nothing here counts toward an investor's record. [How we decide](https://millionrounds.com/methodology)

## About H1

H1 is a New York-based healthcare data and software company founded in 2017.

The company develops an AI-driven platform that connects fragmented healthcare information, helping organizations identify and match healthcare professionals across various sectors, including research, medical affairs, and patient care. H1 aims to create a healthier future by making healthcare expertise and professional data more accessible. The platform aggregates and analyzes global data on healthcare professionals, organizations, clinical trials, and publications. It supports analytics and workflow tools for healthcare decision-making. Key use cases include identifying key opinion leaders, collaborating with clinicians, and improving patient access. H1 offers a comprehensive database of healthcare professionals and organizations, along with analytics tools and modules like H1 Explorer, Da Vinci, and Trial Landscape. The company serves a diverse clientele, including pharmaceutical, biotechnology, and digital health organizations, with notable clients such as Novartis and AstraZeneca.

## What company datasets say H1 raised

Funding, as reported

Reported in all **$238M** in dollars

Last round **Series A**

Last round size **$40M**

Last round date **May 2026**

## Founders and team

From H1's own website: 2 founders, 2 on the team.

**Ariel Katz** Co-Founder & CEO

**Ian Sax** Co-Founder & President

- **Karen Walker** Board Member Eli Lilly and Company
- **Somesh Dash** General Partner IVP

## The company, in detail

What they build

Known for

hcps health care data science provider data enterprises information technology & services big data healthcare data enterprise software information technology pharmaceutical hospital & health care medical affairs medical kol mapping health

Built with from their website

Docker Amazon SES Tableau AWS Trusted Advisor Atlassian React Native Lever Arc Microsoft PowerPoint Google Ads

+8 more

GitHub MailChimp Google Workspace Copilot Amazon Elastic MapReduce Google Cloud BigQuery Amazon Simple Email Service WP Engine

- **Sector:** Information technology & services
- **Industry code:** NAICS 51321, 51929, SIC 7372, 7375
- **Region:** New York
- **Revenue:** $58M a year, as listed

## Information technology & services in United States

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