SellMyData vs Endless Data: how their terms compare
By Gareth HoyleLast updated How we research
In short
SellMyData suits companies of any headcount that want to pay a commission only when a sale closes, and Endless Data suits companies with roughly 30 or more staff that want a non-exclusive license. Endless Data is paid by the labs and asks for roughly 30 or more staff. SellMyData sets no minimum headcount and takes a commission when a sale closes.
Key takeaways
- SellMyData is a data broker, and Endless Data is a direct buyer.
- Published payout at SellMyData: Not published.
- Published payout at Endless Data: Up to $4 million (indicative estimate based on headcount, years of history and location).
- SellMyData publishes 4 of the 6 terms compared here, and Endless Data publishes 6.
- Facts were checked on each company's own pages in November 2026.
How do SellMyData and Endless Data compare?
The table sets each company's published terms side by side, copied from our profiles. "Not published" means the company's own pages do not say.
| Term | SellMyData | Endless Data |
|---|---|---|
| Type | Data broker | Direct buyer |
| What it buys | Messages, code, documents, records and tasks from tools such as Slack, Teams, Gmail, GitHub, Jira, Drive, Notion, Salesforce, HubSpot, QuickBooks and Zendesk | Quotes, tickets, work orders, SOPs, handover notes and internal communications. Excludes personal data, protected health information, privileged matter content, client books and pricing logic |
| Published payout | Not published. Price set by data type, volume, years of history and lab demand, and approved by the seller | Up to $4 million (indicative estimate based on headcount, years of history and location) |
| Size requirement | No minimum headcount | Roughly 30 or more employees, several years of history, English documentation. US, UK and Canada prioritized |
| Exclusivity | Not published | Non-exclusive |
| Fee to seller | Nothing upfront. Commission when a sale closes (rate not published) | None. Endless is paid by the labs |
| Payment timing | Target of 7 days after a sale closes | Fixed sum agreed before data is shared, paid after signing, preparation and transfer. No date published |
| Facts checked | November 2026 | November 2026 |
Published payouts are ceilings or estimates, not quotes.
Who are SellMyData and Endless Data?
Data broker
SellMyData
SellMyData is a broker that de-identifies company data and sells it to AI labs, describing itself as the exchange for AI training data. It sets no minimum headcount, charges nothing upfront, takes a commission only when a sale closes, lets sellers approve every buyer and term, and targets payment within 7 days of a sale closing.
Direct buyer
Endless Data
Endless Data, the trading name of Seldon Ventures, L.L.C., licenses operational data from companies and places it with several AI labs, naming micro1, Mercor and Handshake as examples. It advertises up to $4 million, asks for roughly 30 or more staff, several years of history and English documentation, uses a non-exclusive license and charges the seller nothing.
Which fits you, SellMyData or Endless Data?
The right fit between SellMyData and Endless Data depends on your records and the terms you need. We do not rank either company, and each point below comes from its published facts.
SellMyData may suit you if
- you have no minimum headcount to meet
- you prefer to pay nothing upfront and a commission only when a sale closes
- you want a target of payment within 7 days of a sale closing
Endless Data may suit you if
- you have roughly 30 or more employees, several years of history and English documentation
- you want a non-exclusive license
- you want a fixed sum agreed before any data is shared, with no fee to you because the labs pay Endless Data
Terms to ask about
SellMyData does not publish its payout or exclusivity terms. Endless Data publishes all 6 terms compared on this page. Ask each company for these terms in writing before you share a sample.
Comparing offers?
Published payouts are ceilings, not quotes. We can put your records in front of several vetted buyers and compare offers on the same terms. Get a free valuation.
Frequently asked questions
What do SellMyData and Endless Data pay for data?
What size of company do SellMyData and Endless Data look for?
Do SellMyData and Endless Data charge sellers a fee or require exclusivity?
When do SellMyData and Endless Data pay sellers?
Related comparisons
Sources
- SellMyData homepage and FAQ, SellMyData, accessed November 2026
- Endless Data homepage and FAQ, Endless Data, accessed November 2026