Updated November 2026
Defined.ai review: who can sell on its marketplace
Defined.ai is a fit if your business can hand over a clean, rights-cleared dataset, above all cinematic, anime, coding or STEM data, and a partial fit for everyday business data, which it invites but does not price. Owners who want a buyer to take their email, files and CRM as a whole should use our quiz instead. Defined.ai pays licensing fees from marketplace sales, publishes no rate, and says average partner revenue is $600K+ without saying how many partners that covers.1,2,3,4,5
Our score
Not ranked
Not in our seller ranking
Defined.ai warns that someone is using the name Defined Inc without its authorization to ask individuals to pay for plans and recruit others. Defined.ai says it never requests payments from individuals.7
Defined.ai's FAQ calls its buyer license perpetual, and the linked agreement allows termination on 60 days' notice.8,9
Key facts
Defined.ai in its own words and others'
| Fact | Value and source |
|---|---|
| Defined.ai: who it takes | "Any business that generates or aggregates data", with audio, video, image, text or multimodal data to sell through its marketplace |
| Defined.ai: priority data | Lists cinematic data, anime, coding and STEM as high-demand types, with faster onboarding for them |
| Defined.ai: how partners earn | Licensing fees from marketplace sales. Commercial terms depend on the dataset and are approved by the partner. No rate is published |
| Defined.ai: partner revenue claims | $600K+ average partner revenue, $1M+ revenue for 5+ partners, 319% year-over-year growth in dataset sales |
| Defined.ai: company | DefinedCrowd Corporation, 1201 3rd Avenue, STE 2200, Seattle, WA 98101. Its license agreement uses Washington law |
| Defined.ai on Trustpilot | Claimed profile with 0 reviews |
Is this for my business?
Defined.ai suits sellers of finished datasets
Defined.ai says it takes any business that generates or aggregates data, in audio, video, image, text or multimodal form, and it sets no fixed minimum dataset size, saying requirements depend on the dataset. Its Data Partner page speaks directly to a business that creates sales, marketing or logistics data through daily operations, stores it and does not know how to monetize it.10,11,3
Defined.ai's stated priority is cinematic data, anime, coding and STEM, and those types get a faster path. The page does not mention email, CRM or company files, and gives no example of a normal operating business being paid, so we read it as a real but partial fit for those owners. Your data must also be ethically sourced, with proper consent and documentation, and you need the right to commercialize it for AI training.1,3,2
What does it pay?
Defined.ai's partner revenue claims have no base number
Defined.ai pays licensing fees from marketplace sales and publishes no rate, because commercial terms depend on the dataset and the partner approves them. Its page shows $600K+ average partner revenue, $1M+ revenue for 5+ partners and 319% year-over-year growth in dataset sales.4,5
Those stats come with no count of partners and no time period for the average, so we would not plan around them. A January 2026 release adds that several partners generate more than $1 million a year, and that third-party partner datasets rose 1,200% in 2025, which in our view could mean more competition for your dataset, though the same page shows dataset sales up 319% and the release reports 65% revenue growth.5,12
How does it work?
How to apply to Defined.ai
Defined.ai's application runs through four steps: you create a Jira account, it does market research, it evaluates your data's quality, volume and metadata, then it assesses your licensing rights along with legal, compliance and cybersecurity checks. That last step is Defined.ai's own check on you, not a review done on your behalf.13
Defined.ai says data use is governed by licensing terms and agreed use cases, and that individual restrictions can be considered case by case. The pages we read do not state exclusivity, how personal details are removed, how long data is kept, payment timing or seller fees, so get those in writing.14,15
What should I check?
Where Defined.ai's public paperwork disagrees
Who is behind it?
Who runs Defined.ai
Defined.ai is the trading name of DefinedCrowd Corporation in Seattle, led by founder and CEO Daniela Braga, with Daniel Navas as CFO. VentureBeat reported $63.4M raised in total as of May 2020, and the company now says it has raised over $85 million. Defined.ai also says it holds ISO 27001, 27701 and 42001 certifications. Its Trustpilot profile is claimed and shows 0 reviews.16,17,18,19,6
Check first
How to check Defined.ai, or any buyer
The same checks for every company we profile. We state facts; you decide.
- 1.Find the company behind the ad: a legal name, a registered address and named people.
- 2.Ask for a written offer and a sample agreement before you send any data.
- 3.Ask who removes personal data, by what method, and approve it before anything is exported.
- 4.Ask which AI labs will receive the data, and whether you will be told.
- 5.Ask how they are paid: by you, by the buyer, or from a share of your deal.
- 6.Get terms from at least one other buyer before you answer.
Reader reviews
What people who worked with Defined.ai say
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FAQ
Questions, answered with sources
Defined.ai says it never requests payments from individuals. It has warned that someone using the name Defined Inc without its authorization asks people to pay for plans and recruit others, seen in Brazil and possibly elsewhere.7
Every business is different, so this one is best talked through with the buyer you're working with. Their team goes over it with you before anything is signed.
Before you sign
Questions to talk through with your buyer
Every business is different, so these are best talked through with the buyer you're working with. Their team goes over them with you before anything is signed.
Questions for this kind of business
- What is the seller agreement, and can we read it before we apply?
- Is our listing exclusive, and how do we take a dataset down?
- How do CCPA, GDPR, UK GDPR and state privacy laws apply, and is de-identified data still personal information?
- Do customer, supplier or platform contracts, NDAs or API terms restrict this?
Questions for any buyer
- Is the license exclusive, and for how long?
- Can you sublicense the data, and to whom?
- Which AI labs will receive it, and will you tell us?
- How long do you keep it, and how is it deleted?
- What is your liability cap, and who indemnifies whom?
- Will the contract ban re-identification of people in the data?
- Who removes personal data, by what method, and do we approve it first?