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Endless review: what sellers actually get

Endless headlines up to $4M for a company's operational data. The price is fixed and agreed up front, before any data moves, and there is no commission. Endless then resells licenses to labs; it lists micro1, Mercor and Handshake among them.

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AI Data Offers research deskChecked against our methodology Updated October 28, 2026 3 min read 3 sources
Pays companies
Up to $4M (headline)
Minimum size
About 30+
Time to payment
Fixed sum agreed up front
Our score
4.6 / 10

In this guide

Our score

4.6 / 10

Fixed-sum broker
Pays companies
Up to $4M (headline)
Minimum size
About 30+
Regions
US, UK and Canada prioritised
Time to payment
Fixed sum agreed up front
Exclusivity
Non-exclusive
Referral program
None published

What we like

  • Fixed sum agreed before anything is shared
  • Non-exclusive license
  • No seller commission

Watch for

  • Names big buyers that have not confirmed it
  • No published seller contract
  • No named people

01

Endless at a glance

  • Headline

    Up to $4M; fixed sum agreed before sharing; no seller commission

  • How it is paid

    By the labs it licenses to; places data with more than one buyer

  • License

    Non-exclusive: you can license the same data elsewhere. Promises audit rights, sample review and deletion at the end of the agreed term

  • Never licensed

    Customer, employee and client personal data, health information, privileged matter content, client books and pricing logic

  • Industries

    Logistics, consulting, property management, insurance, law, accounting, staffing, healthcare ops, IT services, BPO

  • Company

    Seldon Ventures, L.L.C. dba Endless Data, Newark, Delaware; no people named

Figures are the buyer's own published claims unless a news source is named.

02

Who Endless buys from

Endless looks for service firms (ten types) with roughly 30+ staff, several years of history and documentation in English. It says the US, UK and Canada come first.

03

What Endless pays

The flow: agree a set price with Endless, hand over the data, then Endless relicenses it. It claims that selling to many labs lets it offer you the top price. What it keeps from those lab sales, beyond what it paid you, is never shown.

04

The contract terms

Endless says its license is non-exclusive, so you remain free to license the same data to anyone else.

05

Endless's referral program

Endless publishes no referral program.

06

Questions about who is behind it

The only entity shown is Seldon Ventures, L.L.C., with a suite address in Newark, Delaware. No individuals are listed. The terms page on its site is written for customers who buy data from Endless, and describes Endless as a data broker that gathers and resells operational company data from public sources, commercial partners and data contributors. There is no published seller contract. Each lab it lists has its own direct program, and none of them, in what we could find, names Endless as a partner.

07

Is Endless a fit for your company?

Test any fixed sum from Endless against what micro1, Mercor or Handshake would pay you directly. Ask Endless to name the lab that has committed to data like yours, and to show you the usage limits in that deal.

08

Six checks before you send Endless anything

We run the same checks on every buyer we rank. They take an afternoon and they protect the one thing you cannot take back: the copy of your records.

  • Find the legal entity. A registered company name, an address and at least one named person. A Facebook form alone is not enough.
  • Get the offer and the contract in writing before any export. A sample agreement tells you more than a sales call.
  • Ask who strips personal data, how, and when. You should approve the method and see a sample before anything leaves your systems.
  • Ask where the data goes. Which AI companies receive it, whether you are told, and whether it can be resold.
  • Ask how everyone is paid. By you, by the buyer, or out of your deal. Referral fees are normal; hidden ones are not.
  • Get a second quote. Terms from at least one other buyer is the fastest way to know if an offer is fair.

FAQ

Questions, answered

Does Endless really sell to micro1 and Mercor?

It says so. Neither company has confirmed it in anything we found.

Can I license my data elsewhere after Endless?

Endless says its license is non-exclusive.

Get offers from buyers that fit

Tell us about your company once. We introduce you to the buyers most likely to pay, and you choose who to talk to.

Keep reading

Sources

Every number on this page links back to one of these.

  1. 1Endless homepageendless-data.com
  2. 2Endless: termsendless-data.com
  3. 3RDAP record for endless-data.comrdap.org

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