H1
h1.com
Actively hiring
Pharma Marketing & Medical Communications
Clinical Trial Sites & Recruitment
Health Data & Interoperability
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Overview
News
Technologies
Salaries
Products
People
Growth
Offices
Jobs
Financials
Funding and backers
Total raised
$271M
3 rounds on record
Latest round
$95M
Venture round · Dec 2024 · 21 mo ago
Hiring now
17
+4 posted in 30 days
Backers
7
Y Combinator, HealthX Ventures
The money's age
Due for its next round
21 months since the last round · and hiring
Momentum
34/100
hiring for its size, a new city, in the news
Last sign of life
this month
a posting or a news item
The story so fareach stage dated by its source: the company's releases, the press, registers, filings
Dec 31, 2024
New executive Micah Brooks, Executive Officer · SEC Form D
Dec 19, 2024
Raised a round Venture round $95M · SEC Form D
Nov 19, 2021
Board appointment Sylvie Veilleux, Director · SEC Form D
Nov 15, 2021
Raised a round Venture round $121M · SEC Form D
Dec 11, 2020
Raised a round Venture round $55.1M · SEC Form D
Jan 2020
Went through Y Combinator
2017
Founded
Tractionpublic signals, read monthly
Web presence
top 23%
of 133.2M domains by links, Common Crawl
Funding rounds
| Round | Date | Amount | Investors | Source |
|---|---|---|---|---|
| Venture round | Dec 2024 | $95M | — | SEC Form D |
| Venture round | Nov 2021 | $121M | — | SEC Form D |
| Venture round | Dec 2020 | $55.1M | — | SEC Form D |
Registers and programsofficial lists and records that name the company
| Legal entity | H1 Insights Inc. | its site |
Founders and leadersfrom filings, registers and the company's site
Ian SaxExecutive Officer, DirectorSEC Form D
Ariel KatzExecutive Officer, DirectorSEC Form D
Deborah SchwartzExecutive OfficerSEC Form D
Micah BrooksExecutive OfficerSEC Form D
Backed byfrom the funds' portfolios and accelerator catalogs
Y Combinator 
HealthX Ventures 
Glynn Capital 
IVP 
Menlo Ventures 
Oak HC/FT 
Underscore VC Investors in similar startupsfunds that back the companies most like this one
Similar startupsby what they do, their industry and backers
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How H1 hires
Truth index
A 100/100
Median time to fill
49 days
Ghost roles
0%
Stale roles
0%
Reposted roles
0%
H1 scores A on the Alion truth index (A is best, E worst), measured over 3 open roles re-checked against its own hiring board: 0% look like ghost listings, 0% have gone stale and 0% are the same role posted again. Its roles close in a median of 49 days. It measures how much of what this employer publishes turns into a real, finite search - not the employer as a workplace. How the index is computed
Visa sponsorship
- United States · H-1B filings in 12 months: 5 · green card filings: 2
Overview
H1 is a healthcare data company headquartered in New York City and founded in 2017. The company maintains a global database of healthcare professionals, their publications, trial history, and affiliations, which pharmaceutical companies use for clinical trial site selection, medical affairs, and commercial targeting. It sells to life sciences organizations and combines licensed and public data sources into a single provider graph.
News
H1 Selected by CMS to Help Build a Trusted National Foundation for Provider Information
H1's provider intelligence platform, relied on by millions of Americans each year to find a doctor, will help support CMS's goal of more accurate,...
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Report
H1 Acquires Healthcare Data Company Defacto Health to Bolster Provider Network Intelligence
H1 acquires provider network intelligence company Defacto Health, integrating its data to eliminate directory inaccuracies and strengthen its Doctor Graph.
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Report
H1 Acquires Defacto Health to Strengthen Provider Network Intelligence
Acquisition brings provider-network data and experienced healthcare data leaders to H1...
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Report
H1 Partners with Novo Nordisk to Scale AI-Driven Clinical Development
NEW YORK, Aug. 04, 2026 (GLOBE NEWSWIRE) -- H1 today announced a new partnership with Novo Nordisk to improve clinical development in the age ...
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Report
The AlleyWatch Startup Daily Funding Report: 5/29/2026
The latest venture capital, seed, pre-seed, and angel deals for NYC startups for 5/29/2026 featuring funding details for H1 and much more.
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Report
H1 secures $40M from CVS, proving SaaS startups can still attract investment
CEO Ariel Katz argues that while AI can replicate workflow SaaS, it can't copy H1's unique doctor data.
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Report
H1 Receives $40M Investment in Round Led by CVS Health Ventures
H1 announced that it has received a $40M investment in a round led by CVS Health Ventures....
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Report
Show more news
Tech stack
Technologies named in job postings at H1 over the last 12 months, by layer, with the share of postings for each.
Technologies in use
75
Postings analysed
26
Stack modernity
84/100AI adopter
Languages
Python69%
SQL54%
JavaScript19%
Java15%
Frameworks & libraries
Nest.JS8%
React.js8%
LangChain8%
Entity Framework Core4%
Databases
ElasticSearch23%
PostgreSQL19%
Amazon Redshift15%
Snowflake8%
Cloud & platforms
AWS46%
Spark42%
Kubernetes38%
Amazon S331%
AI & ML
Claude23%
LLM8%
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Full H1 tech stack
75 technologies · by team · pay by technology · changes · similar stacks
Salary insights
Compensation ranges based on this company's open jobs
Median
$168k
Typical range
$85k – $350k
Open positions
14
14
Jobs
Middle
14.3%
Senior
57.1%
Staff
21.4%
Principal
7.1%
| Level | Jobs | Median | Typical range |
|---|---|---|---|
| Middle | 2 | $135k | $135k |
| Senior | 8 | $180k | $120k – $350k |
| Staff | 3 | $220k | $85k – $220k |
| Principal | 1 | $160k | $160k |
Highest paying role
Strategic Client Partner, Clinical
$350k
Normalized to USD per year
All salaries at H1
By role, level and city, against the market · 14 jobs with pay
People
Ian Sax
Executive Officer, Director
Ariel Katz
Executive Officer, Director
Deborah Schwartz
Executive Officer
Micah Brooks
Executive Officer
Greg Yap
Director
Somesh Dash
Director
Sylvie Veilleux
Director
Karen Walker
Director
Mike Derezin
Director
Names and roles come from public filings, company registers and the company's own site. Is this you? Correct or remove · How we handle this data
Growth
Hiring Momentum
73/100
Growing
Open positions
17
3 opened / 8 closed in 30 days
Median time-to-fill
53 days
faster than 26% of the market
ATS activity
Every ~4 hours
Today
Hiring Dynamics
+100%
Hiring Focus
The percentage next to each role is its share of the company's job openings over the last 90 days; the arrow shows the shift versus the previous period.
Backend
26% ▼
Product
11% ▼
Sales
11% ▲
Customer Success
11% ▼
Solutions
11% ▲
Analytics
7% ▲
Activity Timeline
New location: India
Oct 2026
Added Apex to stack
Oct 2026
Added SPSS to stack
Sep 2026
Added Fivetran to stack
Sep 2026
Added Apache HTTP Server to stack
Sep 2026
Added Machine Learning to stack
Sep 2026
Added Vercel AI SDK to stack
Sep 2026
Added Tableau to stack
Sep 2026
Added Snowflake to stack
Sep 2026
Added Power BI to stack
Sep 2026
Added NumPy to stack
Sep 2026
Added Looker to stack
Sep 2026
Offices
Where the company hires and what each office is for
Cities
2
Hiring now
2
Countries
2
Busiest office
New York
Loading the map
Headquarters
Builds here
Office with open vacancies
Tap a pin for the office
New York
United States
HQ
10 open roles 10 posted in 90 days 50% engineering $188k Avg Salary
hires for Data Science, Product, Backend
Hyderabad
India
Engineering / R&D
1 open roles 1 posted in 90 days 100% engineering
hires for Analytics
Earlier presence
Copenhagen, Denmark
Jobs
$120k – $145k per year • Equity • Hybrid • Full-Time • 6+ years exp • New York
Python
Terraform
CircleCI
CI/CD
AWS
Docker
Kubernetes
Amazon EKS
Amazon S3
IAM
Apply
$145k – $185k per year • Equity • Hybrid • Full-Time • 5+ years exp • New York
Python
SQL
Apex
Snowflake
Amazon Redshift
Analytics
ETL/ELT
Apply
$110k – $135k per year • Equity • Hybrid • Full-Time • 3+ years exp • New York
Python
SQL
pySpark
Databases
Databricks
AI/ML
Spark
dbt
DevOps
CI/CD
AWS
AWS Lambda
Amazon S3
Amazon ECS
Apply
$235k – $275k per year • Equity • Hybrid • Full-Time • 12+ years exp • New York
Amazon S3
Apply
$110k – $135k per year • Equity • Hybrid • Full-Time • 3+ years exp • New York
Python
Go
JavaScript
TypeScript
Node JS
pySpark
Node JS
Nest.JS
Databases
PostgreSQL
ElasticSearch
Apache Kafka
AI/ML
LangChain
Spark
LLM
RAG
OpenAI
Anthropic
Vercel AI SDK
Frontend
React.js
DevOps
AWS
Kubernetes
Apply
$190k – $230k per year • Equity • Hybrid • Full-Time • 10+ years exp • New York
SQL
Claude
dbt
OpenAI
DevOps
SLI/SLO/SLA
Analytics
Fivetran
Apply
$130k – $160k per year • Hybrid • Full-Time • 5+ years exp • New York
Apply
≈ $19k – $41k per year (Estimated) • Remote (India) • Full-Time • India
Python
JavaScript
Node JS
PostgreSQL
ElasticSearch
AI/ML
Copilot
Claude
Airflow
Knowledge Graph
DevOps
Terraform
CircleCI
CI/CD
Git
Docker
Kubernetes
Analytics
ETL/ELT
Management
Jira
Apply
$140k – $175k per year • Equity • Hybrid • Full-Time • 5+ years exp • New York
Python
SQL
Apply
≈ $99k – $184k per year (Estimated) • Hybrid • Full-Time • 8+ years exp
SQL
SPSS
AWS
Amazon S3
Management
Jira
Apply
$190k – $220k per year • Equity • Hybrid • Full-Time • 8+ years exp • New York
Python
Java
SQL
Scala
pySpark
Databases
Amazon Redshift
AI/ML
Copilot
Spark
Airflow
Claude Code
DevOps
AWS
Docker
Kubernetes
Amazon S3
Analytics
ETL/ELT
Apply
$190k – $220k per year • Equity • Hybrid • Full-Time • 8+ years exp • New York
Python
Java
Scala
pySpark
Databases
PostgreSQL
Apache Kafka
Amazon Redshift
Apache Hudi
AI/ML
Hadoop
Spark
PubMed
DevOps
Terraform
CI/CD
Git
AWS
Docker
Kubernetes
Amazon S3
Apache HTTP Server
Analytics
ETL/ELT
Apply