Questions and answers
Straight answers about licensing data to AI companies, buying training data, and how we work. If your question isn't here, ask us.
About AI Data For Sale
What is AI Data For Sale?
An independent broker for licensed AI training data. We help AI teams find vetted holders of the data they need, and help companies license the data they hold to vetted AI buyers. We introduce the parties and help structure the deal; the license is signed directly between buyer and seller.
Who runs AI Data For Sale?
AI Data For Sale is a trading name of Marketing Signals Ltd, a company registered in England and Wales (company number 09767832), founded and run by Gareth Hoyle. See about us.
Do you sell data yourselves?
No. We never own, hold or resell the data. Samples and transfers move directly between the parties.
Why use a broker instead of contacting AI companies directly?
You can contact buyers directly. A broker saves time finding the right counterparties, vets them, helps prepare the data and terms, and creates competition between buyers. You decide whether that is worth a success fee.
Which countries do you work in?
Our content is written for US companies and AI teams, and most of our work is with US parties. We can help with other countries, but laws differ, so local legal advice is essential.
Selling or licensing your data
What kinds of data can I sell to AI companies?
Private data that shows how real work is done: conversations, tickets, email, code with history, recordings, video, documents, expert judgments and specialist records. See the data catalog.
Do I lose ownership of my data?
No. In a license you keep ownership and the original data, and grant the buyer defined rights to use a copy.
How much is my data worth?
It depends on scarcity, quality, structure, volume, exclusivity and rights. Published reference points range from about 2 cents per image to $10 million for a large corporate archive. See how to value a dataset and AI data prices.
Is it legal to sell my company's data?
Usually, for data you have the rights to, after privacy, contract and sector rules are checked and personal information is handled. See is selling company data legal?
Do I have to share data to get a valuation?
No. We work from a description of the systems, record types, volumes and dates. No records leave your systems until there is real interest, the rights are clear and an NDA is signed.
Will buyers get access to our systems?
Never. Buyers receive a prepared, de-identified export after the license is signed.
Can a closed company sell its data?
Often yes, through whoever controls its assets in the wind-down. See selling data from a closed company.
Can I license the same data to several buyers?
Yes, with non-exclusive licenses. Some buyers pay more for exclusivity. See exclusive vs non-exclusive licenses.
What if my data contains personal information?
It must be de-identified to a stated standard before sampling, and some categories, such as health, HR and privileged material, are usually excluded. See de-identification.
Can I remove my data from a model later?
Generally no. Trained models cannot reliably unlearn data, so licenses focus on deleting raw copies at the end of the term. Decide before you sign.
Buying AI training data
What data can you source?
We source from holders across the categories in our data catalog, from conversational and speech data to code, agent trajectories, expert annotations and specialist documents. If you need something unusual, ask.
Do you have datasets ready to buy?
We do not hold an inventory. We find holders who match your request, check their rights and arrange samples. That is how we source data you cannot buy off a shelf.
How do you vet sellers?
We check identity and authority to license, ownership and rights basis, privacy handling and de-identification plans, and how samples are drawn. See how we vet.
How long does sourcing take?
Simple requests can produce samples within weeks. Requests needing new collection or heavy rights work take longer. We give you a realistic timeline after the consultation.
Do buyers pay a fee?
The initial consultation is free. Any fee for buyer-side sourcing work is agreed in writing before work starts. See fees.
Who do we sign the license with?
The data holder. We help structure the terms, but the contract is directly between you and the seller, so your rights do not depend on us.
Can we get exclusive rights?
Often, at a price. Evaluation data in particular is usually licensed exclusively.
Process, fees and trust
How does the process work?
Consultation, inventory or request, rights and privacy checks, matching with vetted counterparties, sample under NDA, negotiation, direct license and secure delivery. See how it works.
What does it cost?
The first consultation is free. Sellers pay a success fee only when a deal completes, agreed in writing before any introduction. See fees.
How quickly do you reply?
We reply to every enquiry within two working days.
Do you hold our data?
No. We never take custody of raw data. Samples and transfers move directly between the parties.
How long do you keep enquiry details?
We keep enquiry details for up to 24 months, then delete them. See our privacy policy.
Is anything I tell you confidential?
Yes. We treat enquiries as confidential and only share details with a counterparty with your permission, usually under NDA.
Are you lawyers?
No. We are not a law firm and do not give legal advice. Each party should take its own legal advice before signing a license.
Tell us what you need
Book a free 30-minute consultation. Tell us what data you want to buy or license, and we'll tell you honestly whether we can help and what it involves.
- We reply to every enquiry within two working days.
- No upfront fees for sellers
- We never hold your raw data