Who Sells Data 171 vendors · updated Oct 20, 2026Talk to the founder

Centaur AI

Boston company that labels medical and other data through scored contests among human annotators, specialists and AI models, sells model evaluation services, and licenses finished labeled datasets, such as chest X-ray and pathology sets, to AI developers.

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Headquarters
Boston, United States
Headcount
11-50
Total funding
$32.54M
Latest round
Series B, $16M, October 2024

Source:centaur.ai

Trust & data

How the vendor protects buyer material, where its data comes from, and where it can run.

SOC 2
Vendor-stated Type II

Source:centaur.ai

Quote
Centaur.ai is proud to announce the successful completion of its SOC 2 Type II audit, further demonstrating the company’s commitment to data security, privacy, and operational excellence.
Other certifications
HIPAA

Source:centaur.ai

Data sources
Built from customer dataExpert or contractor-createdPublic / open data

Sources:go.centaurlabs.comcentaur.ai (1)centaur.ai (2)

Quotes
  • Built from customer data: Your cases become a private contest. We recruit and gate the right specialists, enter the models you care about, and hand back aggregation labels.
  • Expert or contractor-created: Select from 100,000+ subject matter experts and/or AI models and have them annotate independently.
  • Public / open data: 1,733 human annotators reviewed 5,856 microscope images from PatchCamelyon, checking whether the marked area contained cancer cells and contributing 209,828 answers.
Stated confidentiality practices
Centaur AI says it is HIPAA-compliant and uses security protocols to safeguard sensitive healthcare data, and that it completed a SOC 2 Type II audit.
Not publicly listed
Trust center, Deployment, Exclusivity

What they sell

Delivery formats
APIDatasetsManaged service
Named customers
Massachusetts General HospitalMemorial Sloan KetteringEight SleepSciBite (Elsevier)Activ SurgicalMedtronicMicrosoftPaigeEko HealthVUNOConsensusAiberryVolastra Therapeutics
Not publicly listed
Public samples & benchmarks

Every change to these facts is kept in the public claims log. Record co_6144e425805d.