Comparison
SourceX vs Defined.ai: which fits your business
Quick answer
SourceX and Defined.ai both help organizations put data in front of AI buyers, but they work differently. SourceX is built specifically for U.S. businesses licensing their own day-to-day work records, with every release approved by the business and reviewed deal by deal. Defined.ai serves a different part of the data market, described below, so the right fit depends on what you have and who you want to reach.
The facts, from public sources#
- Founded in 2015 in Seattle by CEO Daniela Braga, with an R&D center in Lisbon.
- Runs an off-the-shelf marketplace of audio, image, video, text and multimodal datasets, plus custom data collection and annotation services.
- Raised an $11.8 million Series A led by Evolution Equity Partners, with early backing from Sony and the Amazon Alexa Fund.
- Holds ISO 27001, 27701 and 42001 certifications and says it is GDPR and HIPAA compliant.
What Defined.ai does#
Defined.ai is a real, independently operating company; see the facts and sources below for specifics on how it works today.
Businesses considering either option should look at what kind of data each one is built to handle, who the buyers are, and how much control sellers keep over approvals and pricing.
What SourceX does differently#
SourceX works only with U.S. supplier businesses and sells to buyers worldwide, with its team based in Los Angeles.
Every release goes through company approval, with personal details removed and checked, and rights reviewed deal by deal with counsel before anything moves. Large files can stay in the seller's own storage or ship on encrypted drives, and deals can be set up as exclusive or non-exclusive depending on what fits.
How to choose#
If your business generates everyday work records, such as support tickets, sales conversations, or internal documents, and you want a partner that reviews each release with you, SourceX is built for that. If you need Defined.ai's specific category of data or audience, it may be a better technical fit for that narrower need.
Many businesses only consider one option seriously once they see what their own records could be worth, which is best assessed case by case.
Related comparisons
Sources
Public sources, checked 2026-10-09. SourceX is not affiliated with the organizations named.
- Defined.ai — About defined.ai
- Defined.ai — Marketplace defined.ai
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