Who Sells Data 170 vendors · updated Oct 16, 2026Talk to the founder

NewtonX

NewtonX recruits professionals in finance, tech, healthcare and law, checks their identity and expertise, and uses them to run model evaluations, produce post-training datasets and audit annotation quality for AI developers. Its main business is B2B market research.

Sources:newtonx.com/methods/ai-training-evaluationsnewtonx.com (2)

newtonx.com · also known as NewtonX, Inc. · updated Oct 16, 2026

Human dataTraining dataEvals and benchmarks
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Headquarters
New York, United States

Sources:newtonx.com/teamnewtonx.com/methods/ai-training-evaluations

Founded
2016

Sources:tracxn.comsec.gov

Headcount
51-200

Source:linkedin.com

Total funding
$47M

Source:newtonx.com

Latest round
Series B, $32M, December 2021

Source:newtonx.com

Trust & data

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

SOC 2
Vendor-stated Type I

Source:trust.newtonx.com

Quote
SOC 2 Type 1 Report October 31st, 2024
Other certifications
GDPREU-U.S. Data Privacy Framework and UK ExtensionSwiss-U.S. Data Privacy Framework

Source:newtonx.com

Data sources
Expert or contractor-created

Source:newtonx.com

Quote
  • Expert or contractor-created: We recruit and manage the domain experts who evaluate frontier models, generate post-training data, and audit annotation quality.
Stated confidentiality practices
NewtonX says every expert signs its Expert Terms & Conditions annually, which cover confidentiality on every project instead of a separate NDA per client. It says backend access controls keep each client's data separate and that data stored on its platform is encrypted at rest with AES-256.

Sources:experts.newtonx.comnewtonx.com

Not publicly listed
Deployment, Exclusivity

What they sell

Delivery formats
DatasetsManaged service

Source:newtonx.com

Not publicly listed
Public samples & benchmarks, Named customers

Every change to these facts is kept in the public claims log. Record co_36939edc47f9.