Who Sells Data 159 vendors · updated Oct 13, 2026Talk to the founder

Contra Labs

Contra Labs provides AI teams with professional creatives’ judgments, model evaluations, benchmark datasets, human-feedback training data, and recorded design workflows to improve and measure generative AI.

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Headquarters
San Francisco, United States
Headcount
Not publicly listed
Total funding
$44.5M (Contra parent company)
Latest round
Series B, $30M, November 2021

Trust & data

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

Data sources
Built from customer dataSynthetic / generated

Source:contralabs.com

Quotes
  • Built from customer data: Prompts are drawn from real client briefs, partner-supplied scenarios, and synthesized analogues that mirror common production tasks in the target domain.
  • Synthetic / generated: Prompts are drawn from real client briefs, partner-supplied scenarios, and synthesized analogues that mirror common production tasks in the target domain.
Stated confidentiality practices
Uses vetted creative professionals; offers private evaluations; Contra’s terms prohibit users from disclosing another user’s confidential information. Work ownership is set by the brief, and Contra’s trust center lists restricted production access and customer-data deletion controls.
Not publicly listed
SOC 2, Other certifications, Deployment, Exclusivity

What they sell

Delivery formats
Datasets
Not publicly listed
Named customers

Every change to these facts is kept in the public claims log. Record co_5c82dce080a5.