Fundraising Fox
Gradient Health
Techstars '21Durham, US · Founded 2018 · North Carolina corporation · 47 employees on LinkedIn · 17 known investors
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Gradient AI develops underwriting and claims management software for group health, property & casualty, and workers' compensation insurance. The platform serves carriers, brokers, MGAs, TPAs, and PEOs.
Also known as Gradient Health, Inc.
Founders & leadership
Gradient Health was founded in 2018 by Stan Smith, Ouwen Huang, and Joshua Miller.
Board
Investors · 17
How we know: American Family Ventures's portfolio page · the VCSheet dataset · open dataset · 5k.vc investor directory · Not right? Tell us
How we know: press coverage · the VCSheet dataset · research · prnewswire.com · Not right? Tell us
How we know: Charlotte Angel Fund's portfolio page · Not right? Tell us
How we know: MassMutual Ventures's portfolio page · Not right? Tell us
How we know: MedMountain Ventures's portfolio page · press coverage · the VCSheet dataset · research · prnewswire.com · Not right? Tell us
How we know: Silicon Valley's portfolio page · press coverage · research · prnewswire.com · Not right? Tell us
How we know: Supernode Ventures's portfolio page · press coverage · the VCSheet dataset · research · prnewswire.com · open dataset · 5k.vc investor directory · Not right? Tell us
How we know: the Techstars portfolio · open dataset · Top 3000 Accelerator Startups (no YC) 2026-08 · open dataset · 5k.vc investor directory · Not right? Tell us
How we know: Verissimo Ventures's portfolio page · Not right? Tell us
How we know: the VCSheet dataset · Not right? Tell us
How we know: press coverage · research · prnewswire.com · Not right? Tell us
How we know: board seat on SEC Form D · press coverage · the VCSheet dataset · research · prnewswire.com · Not right? Tell us
Also in the syndicate · 4
Reported raises · per SEC filings
Form D private placements$10M disclosed across 5 rounds · 2022–2026
▶$2.1MraisedOct 2026 · 1 investors · Other Health CareRule 506(b)
- Joshua MillerExecutive Officer, Director
- Satish TadikondaDirector
- Shana BarghoutiDirector
- Matthew BaileyDirector
- Offering amount
- $2.1M
- Amount sold
- $2.1M
- First sale
- Oct 2026
- Incorporated
- Corporation, North Carolina
- Federal exemptions
- 06b
▶$3MraisedAug 2026 · 1 investors · Other Health CareRule 506(b)
- Joshua MillerExecutive Officer, Director
- Ouwen HuangDirector
- Satish TadikondaDirector
- Mattew BaileyDirector
- Shana BarghoutiDirector
- Offering amount
- $3M
- Amount sold
- $3M
- Minimum investment
- $3M
- First sale
- Aug 2026
- Incorporated
- Corporation, North Carolina
- Federal exemptions
- 06b
▶$100KraisedApr 2025 · 1 investors · Other Health CareRule 506(b)
- Ouwen HuangExecutive Officer, Director
- Shana BarghoutiDirector
- Satish TadikondaDirector
- Matt BaileyDirector
- Jay GossDirector
- Joshua MillerExecutive Officer, Director
- Amount sold
- $100K
- Minimum investment
- $1K
- First sale
- Apr 2025
- Incorporated
- Corporation, North Carolina
- Federal exemptions
- 06b
▶$2.4MraisedJun 2023 · 9 investors · Other Health CareRule 506(b)
- Josh MillerExecutive Officer, Director
- Matt BaileyDirector
- Satish TadikondaDirector
- Shana BarghoutiDirector
- Ouwen HuangExecutive Officer, Director
- Offering amount
- $2.8M
- Amount sold
- $2.4M
- Minimum investment
- $10K
- Proceeds to insiders
- $250K
- First sale
- Jun 2023
- Incorporated
- Corporation, North Carolina
- Federal exemptions
- 06b
▶$2.3MraisedMar 2022 · 24 investors · Other Health CareRule 506(b)
- Matt BaileyDirector
- Josh MillerExecutive Officer, Director
- Owen HuangExecutive Officer, Director
- Offering amount
- $2.5M
- Amount sold
- $2.3M
- First sale
- Feb 2022
- Incorporated
- Corporation, Delaware, 2018
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
Company profile
researched Aug 2026Gradient Health is a medical technology company that connects healthcare data holders with AI developers, providing secure access to de-identified multimodal medical data, including medical imaging. The company sources data from hospitals, clinics and health systems, de-identifies it to remove protected health information, curates and ingests records into its Atlas platform, and delivers selected datasets to customers for download in as little as 48 hours.
The platform is aimed at training, validating and improving clinical AI models. Features described include machine-learning-ready formatting, search by disease and imaging modality, security controls for compliance with patient-privacy requirements, and an AI Search Assistant that translates natural-language dataset requests into structured search filters. The company also maintains public engineering repositories covering DICOM tooling, including a library for storing and interacting with DICOM files in the cloud and forks of the OHIF Viewer, Cornerstone3D and pydicom.
Gradient Health was founded in 2018 and has been described as headquartered in Raleigh, North Carolina and in Durham, North Carolina. Leadership includes Joshua Miller (Chief Executive Officer), Benji Meltzer (Chief Data Officer), Ouwen Huang (Chief Scientific Officer), Pia Spratley (Chief Product Officer), Rod Greco (Chief Revenue Officer) and Katelin Buckmaster (Chief Compliance Officer and Lead Counsel), with a board including Jay Goss, Matt Bailey, Satish Tadikonda and Shana Barghouti.
Founding story
Gradient Health was founded in 2018 to address the difficulty healthcare AI teams face in sourcing diverse, representative, high-quality medical data, bridging the gap between AI developers and healthcare organizations that hold clinical data.
Business model
B2B data-as-a-service: Gradient Health aggregates and de-identifies medical data obtained from healthcare provider partners and makes curated datasets available to AI developers through its self-service Atlas platform. Caplight characterizes the customer profile as data-as-a-service with revenue share, indicating that participating data partners share in the economics of data made available through the platform.
Revenue is generated from providing AI developers with access to curated medical datasets, with a data-as-a-service and revenue-share structure involving the healthcare organizations that contribute data.
Traction
The company states it has millions of patient journeys available on its platform and cites customer testimonials from Riverain, Mango Medical and RapidAI. External firmographic data lists roughly 46 employees, and website traffic signals reported 4.1K monthly visitors in June 2025 and 6.4K in March 2026.
Latest developments
Recent company updates include the launch of an AI Search Assistant in the Atlas platform and published material on data quality in medical AI development and the role of linked, representative clinical data in multimodal foundation models.
▸Full profile — market position, technology, go-to-market, geography, history, risks & controversies
Market position
Gradient Health positions itself as a supplier of the data layer underpinning medical AI development. Third-party comparables identified for the company include Segmed, Dandelion Health and Avandra Imaging, all operating in medical imaging and clinical data for AI.
The company emphasizes breadth and representativeness of its data (millions of patient journeys and multimodal context beyond imaging alone), speed from request to delivery, and de-identification and compliance practices as differentiators for medical AI teams that struggle to source data.
Technology
The company operates an ingestion and curation pipeline covering data sourcing, industry-standard de-identification to remove protected health information, and organization of millions of patient records into the Atlas platform, where datasets can be searched and downloaded. Tooling includes machine-learning-ready formatting and search by disease and imaging modality, an AI Search Assistant for natural-language dataset queries, and open-source DICOM engineering work such as a cloud-optimized DICOM library, DICOMweb serving and download utilities, and customized forks of the OHIF Viewer, Cornerstone3D and pydicom.
Go-to-market
Direct enterprise sales and demo requests through the website, a self-service dataset search and delivery experience in Atlas, a data-partner program for provider organizations, and content marketing via a blog and newsletter on medical AI and multimodal datasets. Named customer references include Riverain, Mango Medical and RapidAI.
Medical AI companies and developers needing training, validation and deployment data; research organizations and academic institutions; and, on the supply side, hospitals, clinics and health systems seeking to responsibly share and monetize their data.
Geography
Headquartered in North Carolina, United States, described as Raleigh in 2023 press materials and as Durham in third-party firmographic data; it works with healthcare data partners and AI customers internationally.
History
Following its 2018 founding, the company participated in an accelerator round in 2021 and raised a seed round in February 2022 according to third-party records. In June 2023 it closed a $2.75 million round led by ReMY Investors & Consultants to build what it described as the world's largest annotated medical imaging library. In October 2024 it announced the acquisition of DataAppraisal, a healthcare AI company focused on unlocking value from anonymized health-system data. The company has since expanded from medical imaging toward multimodal patient-journey data delivered through its Atlas platform.
Risks & controversies
The business depends on handling protected health information, making de-identification quality, privacy and regulatory compliance central operational risks; the company identifies trust, privacy and compliance as core commitments and employs a Chief Compliance Officer and Lead Counsel.
Compiled by commissioned research from 8 cited public sources — announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed — not independently audited.
Founder mafia
3 people who came through Gradient Health went on to found or lead other companies.
Related companies · 2
Companies working in the same space as Gradient Health.
Non-dilutive funding · 1 SBIR/STTR award
Federal grants — no equity taken| Agency | Phase | Year | Amount |
|---|---|---|---|
| National Institutes of Health (NIH)National Institutes of Health | Phase I | 2023 | $377.5K |
Source: SBIR.gov award data (U.S. Small Business Administration). SBIR/STTR awards are competitive federal R&D grants and contracts — non-dilutive capital alongside any venture rounds above.
Timeline · 2
launches, deals, and filingsGradient Health introduced an AI Search Assistant within its Atlas platform that converts natural-language dataset requests into structured search filters for medical AI developers.
Gradient Health announced the acquisition of DataAppraisal, a healthcare AI company focused on unlocking the value of anonymized healthcare data from health systems internationally.
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
Legal entities · 1
corporate structure▸Research sources · 8
primary sources listed
- Gradient Healthgradientai.com · web
8 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does Gradient Health do?
- Gradient Health supplies de-identified, multimodal medical imaging and patient-journey data to teams building healthcare AI.
- Who founded Gradient Health?
- Gradient Health was founded by Stan Smith, Ouwen Huang, Joshua Miller in 2018.
- Who are Gradient Health's investors?
- Gradient Health's investors include American Family Ventures, Boro Capital, Charlotte Angel Fund, MassMutual Ventures, MedMountain Ventures, Silicon Valley, Supernode Ventures, Techstars and 5 more.
- How much funding has Gradient Health raised?
- Gradient Health has disclosed $10M raised across 5 rounds.
- Where is Gradient Health headquartered?
- Gradient Health is headquartered in Durham, US.