H1 Inc.

H1 Inc.
H1 Inc.
Type	Private
Industry	Technology
Founded	November 2017; 9 years ago
Founders	Ariel Katz; Ian Sax;
Headquarters	New York, New York, United States
Number of employees	300+ globally (2026)
Website	h1.com

H1 Inc. is a global healthcare data technology company founded in 2017, and headquartered in New York City. The company operates an AI-powered platform that helps organizations identify and engage doctors for workflows across drug development, medical and commercial engagement, care navigation, and provider data and network intelligence. H1 serves pharmaceutical companies, health plans, health systems, and technology companies. The company has over 300 employees worldwide and hundreds of clients as of September 2026. 85% of the top 20 pharma companies and 9 out of 10 of the top health plans are H1 customers.

History

The company was founded by Ariel Katz and Ian Sax in November 2017 as H1 Insights. H1 started by helping biotech and pharma companies connect with Key Opinion Leaders (KOLs) to advance research, drug development, and other treatments. According to Katz, the company is named for "the statistical representation of a true hypothesis", often expressed as H₁, as opposed to a null hypothesis, expressed as H₀.

In 2018, the company launched Da Vinci, a market intelligence offering for life science and biotech companies, and subsequently participated in Y Combinator's Winter 2020 batch.

In 2020, H1 expanded its life sciences offering into clinical trials, using its insights to help clinical teams accelerate clinical research.

By November 2021, H1 had over 100 clients including Novartis and AstraZeneca.

In 2022, H1 expanded its platform with Data Streams, broadening the healthcare data and insights available to customers across life sciences workflows.

In December 2024, H1 acquired Ribbon Health to help support provider search and find-care experiences, expanding H1’s offerings.

In June 2025, H1 acquired Veda Data Solutions, expanding its provider data offerings for health plans.

In August 2026, H1 and Novo Nordisk partnered to enhance clinical trial design and execution through AI-enabled workflows and insights.

In September 2026, H1 acquired Defacto Health, expanding its network intelligence capabilities and was selected by CMS to help build a trusted national foundation for provider information.

Products

H1’s platform supports workflows across drug development, medical and commercial engagement, care navigation, provider data, and network intelligence. The company organizes its offerings into six primary solution areas:

Medical — supports medical affairs teams in identifying and engaging relevant healthcare professionals.
Clinical — supports clinical trial planning from study design and feasibility through site selection and trial execution.
Commercial — helps commercial teams identify relevant prescribers and support targeted engagement with healthcare professionals.
Health Plans — supports provider data accuracy and management across directories, networks, rosters, and internal systems.
Digital Health — provides provider data used to power find-care, care navigation, referral, and healthcare search experiences.
Health Systems — supports referral and care navigation workflows to help connect patients with appropriate in-network providers.

Funding

H1 has completed several funding rounds since 2018:

$40 million led by CVS Health Ventures, the venture capital arm of CVS Health in 2026.
Series C: $100 million led by Altimeter Capital in November 2021, and $33 million in an extension round with funding from Goldman Sachs Asset Management, Menlo Ventures, Transformation Capital and Novartis Pharma AG in 2022.
Series B: $58 million co-led by IVP and Menlo Ventures in December 2020.
Series A: $12.9 million led by Menlo Ventures in April 2020.
$6 million from Shore Group in 2018.

Other investors include Joe Montana, Baron Davis, Y Combinator, and Underscore VC.

References

↑ "H1 Receives $40M Investment in Round Led by CVS Health Ventures". Healthcare IT Today. June 29, 2026. Retrieved September 10, 2026.
1 2 H1 (January 28, 2020). "H1 Joins Y Combinator's Winter 2020 Cohort and Expands Operations to San Francisco". Bloomberg (Press release). New York. Business Wire. Retrieved December 27, 2021.{{cite press release}}: CS1 maint: numeric names: authors list (link)
1 2 3 Jennings, Katie (November 16, 2021). "This Startup Raised $100 Million In Bid To Power All Doctor Information On The Internet". Forbes. Retrieved December 27, 2021.
↑ "H1 Launches "Strategy As A Service" Offering, Helps Life Sciences Companies Cut Time-To-Market In Half". Bio-IT World. September 21, 2018. Retrieved December 27, 2021.
↑ Brady, Michael (November 17, 2021). "Healthcare professional data startup H1 reels in $100 million in funding". Modern Healthcare. Retrieved December 27, 2021.
↑ Temkin, Marina (January 8, 2025). "Healthcare analytics platform H1 has acquired Ribbon, backed by a16z and General Catalyst". techcrunch. Retrieved September 18, 2026.
↑ Landi, Heather (June 3, 2025). "H1 buys Veda to build out its data automation solutions for health plans". fiercehealthcare. Retrieved Sept 16, 2026. {{cite web}}: Check date values in: |access-date= (help)
↑ Hagen, Jessica (August 4, 2026). "Novo Nordisk, H1 partner on AI for drug discovery, clinical trials". MobiHealthNews. Retrieved Sept 16, 2026. {{cite web}}: Check date values in: |access-date= (help)
↑ Landi, Heather (September 9, 2026). "H1 acquires Defacto Health to expand provider network intelligence". fiercehealthcare. Retrieved Sept 16, 2026. {{cite web}}: Check date values in: |access-date= (help)
↑ Inc, H1 Insights (2026-09-29). "H1 Selected by CMS to Help Build a Trusted National Foundation for Provider Information". GlobeNewswire News Room (Press release). Retrieved 2026-10-06. {{cite press release}}: |last= has generic name (help)CS1 maint: numeric names: authors list (link)
↑ Temkin, Marina (May 28, 2026). "H1 secures $40M from CVS, proving SaaS startups can still attract investment". TechCrunch. Retrieved September 10, 2026.
↑ Landi, Heather (13 June 2022). "H1 clinches $33M series C extension to fuel growth and weather upcoming potential downturn". FierceHealthcare.com. Fierce Healthcare. Retrieved 15 June 2022.
↑ Shieber, Jonathan (December 17, 2020). "H1's LinkedIn for the healthcare industry raises $58 million". TechCrunch. Retrieved December 27, 2021.
1 2 Shieber, Jonathan (April 22, 2020). "Y Combinator graduate H1 closes on $12.9 million for its professional healthcare database". TechCrunch. Retrieved December 27, 2021.
↑ Inc, H1 Insights (2018-10-30). "Shore Group Invests $6M in Healthcare AI Data Startup H1". GlobeNewswire News Room (Press release). Retrieved 2026-10-06. {{cite press release}}: |last= has generic name (help)CS1 maint: numeric names: authors list (link)

External links

Official website

[1] "H1 Receives $40M Investment in Round Led by CVS Health Ventures". Healthcare IT Today. June 29, 2026. Retrieved September 10, 2026.

[auto-2] 1 2 H1 (January 28, 2020). "H1 Joins Y Combinator's Winter 2020 Cohort and Expands Operations to San Francisco". Bloomberg (Press release). New York. Business Wire. Retrieved December 27, 2021.{{cite press release}}: CS1 maint: numeric names: authors list (link)

[Jennings_2021-3] 1 2 3 Jennings, Katie (November 16, 2021). "This Startup Raised $100 Million In Bid To Power All Doctor Information On The Internet". Forbes. Retrieved December 27, 2021.

[4] "H1 Launches "Strategy As A Service" Offering, Helps Life Sciences Companies Cut Time-To-Market In Half". Bio-IT World. September 21, 2018. Retrieved December 27, 2021.

[5] Brady, Michael (November 17, 2021). "Healthcare professional data startup H1 reels in $100 million in funding". Modern Healthcare. Retrieved December 27, 2021.

[6] Temkin, Marina (January 8, 2025). "Healthcare analytics platform H1 has acquired Ribbon, backed by a16z and General Catalyst". techcrunch. Retrieved September 18, 2026.

[7] Landi, Heather (June 3, 2025). "H1 buys Veda to build out its data automation solutions for health plans". fiercehealthcare. Retrieved Sept 16, 2026. {{cite web}}: Check date values in: |access-date= (help)

[8] Hagen, Jessica (August 4, 2026). "Novo Nordisk, H1 partner on AI for drug discovery, clinical trials". MobiHealthNews. Retrieved Sept 16, 2026. {{cite web}}: Check date values in: |access-date= (help)

[9] Landi, Heather (September 9, 2026). "H1 acquires Defacto Health to expand provider network intelligence". fiercehealthcare. Retrieved Sept 16, 2026. {{cite web}}: Check date values in: |access-date= (help)

[10] Inc, H1 Insights (2026-09-29). "H1 Selected by CMS to Help Build a Trusted National Foundation for Provider Information". GlobeNewswire News Room (Press release). Retrieved 2026-10-06. {{cite press release}}: |last= has generic name (help)CS1 maint: numeric names: authors list (link)

[11] Temkin, Marina (May 28, 2026). "H1 secures $40M from CVS, proving SaaS startups can still attract investment". TechCrunch. Retrieved September 10, 2026.

[12] Landi, Heather (13 June 2022). "H1 clinches $33M series C extension to fuel growth and weather upcoming potential downturn". FierceHealthcare.com. Fierce Healthcare. Retrieved 15 June 2022.

[13] Shieber, Jonathan (December 17, 2020). "H1's LinkedIn for the healthcare industry raises $58 million". TechCrunch. Retrieved December 27, 2021.

[Shieber_2020-14] 1 2 Shieber, Jonathan (April 22, 2020). "Y Combinator graduate H1 closes on $12.9 million for its professional healthcare database". TechCrunch. Retrieved December 27, 2021.

[15] Inc, H1 Insights (2018-10-30). "Shore Group Invests $6M in Healthcare AI Data Startup H1". GlobeNewswire News Room (Press release). Retrieved 2026-10-06. {{cite press release}}: |last= has generic name (help)CS1 maint: numeric names: authors list (link)